├── .gitignore ├── LICENSE ├── README.md ├── demo-config-localhost ├── counting-1.json ├── counting-2.json └── dashboard.json ├── docker-compose.yml ├── envoy-manifest.json ├── k8s ├── 01-yaml-minimal │ ├── counting-load-balancer.yaml │ └── counting-service.yaml ├── 02-yaml-discovery │ ├── counting-service.yaml │ └── dashboard-service.yaml ├── 03-yaml-connect │ ├── counting-service.yaml │ └── dashboard-service.yaml ├── 04-yaml-connect-envoy │ ├── counting-service.yaml │ └── dashboard-service.yaml ├── README.md ├── bin │ └── enable-consul-stub-dns.sh ├── config.yaml ├── counting-service │ ├── Dockerfile │ ├── Makefile │ └── counting-service ├── dashboard-service │ ├── Dockerfile │ ├── Makefile │ └── dashboard-service └── terraform │ └── azure │ ├── 01-create-aks-cluster │ ├── aks-cluster.tf │ └── versions.tf │ ├── 02-fix-k8s-rbac │ ├── fix-rbac.tf │ └── versions.tf │ └── README.md └── services ├── .gitignore ├── README.md ├── bootstrap ├── build_all ├── clean_all ├── counting-service ├── .gitignore ├── README.md ├── bin │ └── build ├── go.mod ├── go.sum └── main.go └── dashboard-service ├── .gitignore ├── README.md ├── assets ├── app.js ├── dependencies │ ├── jquery-3.2.1.min.js │ └── socket.io.js ├── index.html └── styles.css ├── bin └── build ├── go.mod ├── go.sum └── main.go /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Copyright (c) 2018 HashiCorp, Inc. 2 | 3 | Mozilla Public License Version 2.0 4 | ================================== 5 | 6 | 1. Definitions 7 | -------------- 8 | 9 | 1.1. "Contributor" 10 | means each individual or legal entity that creates, contributes to 11 | the creation of, or owns Covered Software. 12 | 13 | 1.2. "Contributor Version" 14 | means the combination of the Contributions of others (if any) used 15 | by a Contributor and that particular Contributor's Contribution. 16 | 17 | 1.3. "Contribution" 18 | means Covered Software of a particular Contributor. 19 | 20 | 1.4. "Covered Software" 21 | means Source Code Form to which the initial Contributor has attached 22 | the notice in Exhibit A, the Executable Form of such Source Code 23 | Form, and Modifications of such Source Code Form, in each case 24 | including portions thereof. 25 | 26 | 1.5. "Incompatible With Secondary Licenses" 27 | means 28 | 29 | (a) that the initial Contributor has attached the notice described 30 | in Exhibit B to the Covered Software; or 31 | 32 | (b) that the Covered Software was made available under the terms of 33 | version 1.1 or earlier of the License, but not also under the 34 | terms of a Secondary License. 35 | 36 | 1.6. "Executable Form" 37 | means any form of the work other than Source Code Form. 38 | 39 | 1.7. "Larger Work" 40 | means a work that combines Covered Software with other material, in 41 | a separate file or files, that is not Covered Software. 42 | 43 | 1.8. "License" 44 | means this document. 45 | 46 | 1.9. "Licensable" 47 | means having the right to grant, to the maximum extent possible, 48 | whether at the time of the initial grant or subsequently, any and 49 | all of the rights conveyed by this License. 50 | 51 | 1.10. "Modifications" 52 | means any of the following: 53 | 54 | (a) any file in Source Code Form that results from an addition to, 55 | deletion from, or modification of the contents of Covered 56 | Software; or 57 | 58 | (b) any new file in Source Code Form that contains any Covered 59 | Software. 60 | 61 | 1.11. "Patent Claims" of a Contributor 62 | means any patent claim(s), including without limitation, method, 63 | process, and apparatus claims, in any patent Licensable by such 64 | Contributor that would be infringed, but for the grant of the 65 | License, by the making, using, selling, offering for sale, having 66 | made, import, or transfer of either its Contributions or its 67 | Contributor Version. 68 | 69 | 1.12. "Secondary License" 70 | means either the GNU General Public License, Version 2.0, the GNU 71 | Lesser General Public License, Version 2.1, the GNU Affero General 72 | Public License, Version 3.0, or any later versions of those 73 | licenses. 74 | 75 | 1.13. "Source Code Form" 76 | means the form of the work preferred for making modifications. 77 | 78 | 1.14. "You" (or "Your") 79 | means an individual or a legal entity exercising rights under this 80 | License. For legal entities, "You" includes any entity that 81 | controls, is controlled by, or is under common control with You. For 82 | purposes of this definition, "control" means (a) the power, direct 83 | or indirect, to cause the direction or management of such entity, 84 | whether by contract or otherwise, or (b) ownership of more than 85 | fifty percent (50%) of the outstanding shares or beneficial 86 | ownership of such entity. 87 | 88 | 2. License Grants and Conditions 89 | -------------------------------- 90 | 91 | 2.1. Grants 92 | 93 | Each Contributor hereby grants You a world-wide, royalty-free, 94 | non-exclusive license: 95 | 96 | (a) under intellectual property rights (other than patent or trademark) 97 | Licensable by such Contributor to use, reproduce, make available, 98 | modify, display, perform, distribute, and otherwise exploit its 99 | Contributions, either on an unmodified basis, with Modifications, or 100 | as part of a Larger Work; and 101 | 102 | (b) under Patent Claims of such Contributor to make, use, sell, offer 103 | for sale, have made, import, and otherwise transfer either its 104 | Contributions or its Contributor Version. 105 | 106 | 2.2. Effective Date 107 | 108 | The licenses granted in Section 2.1 with respect to any Contribution 109 | become effective for each Contribution on the date the Contributor first 110 | distributes such Contribution. 111 | 112 | 2.3. Limitations on Grant Scope 113 | 114 | The licenses granted in this Section 2 are the only rights granted under 115 | this License. No additional rights or licenses will be implied from the 116 | distribution or licensing of Covered Software under this License. 117 | Notwithstanding Section 2.1(b) above, no patent license is granted by a 118 | Contributor: 119 | 120 | (a) for any code that a Contributor has removed from Covered Software; 121 | or 122 | 123 | (b) for infringements caused by: (i) Your and any other third party's 124 | modifications of Covered Software, or (ii) the combination of its 125 | Contributions with other software (except as part of its Contributor 126 | Version); or 127 | 128 | (c) under Patent Claims infringed by Covered Software in the absence of 129 | its Contributions. 130 | 131 | This License does not grant any rights in the trademarks, service marks, 132 | or logos of any Contributor (except as may be necessary to comply with 133 | the notice requirements in Section 3.4). 134 | 135 | 2.4. Subsequent Licenses 136 | 137 | No Contributor makes additional grants as a result of Your choice to 138 | distribute the Covered Software under a subsequent version of this 139 | License (see Section 10.2) or under the terms of a Secondary License (if 140 | permitted under the terms of Section 3.3). 141 | 142 | 2.5. Representation 143 | 144 | Each Contributor represents that the Contributor believes its 145 | Contributions are its original creation(s) or it has sufficient rights 146 | to grant the rights to its Contributions conveyed by this License. 147 | 148 | 2.6. Fair Use 149 | 150 | This License is not intended to limit any rights You have under 151 | applicable copyright doctrines of fair use, fair dealing, or other 152 | equivalents. 153 | 154 | 2.7. Conditions 155 | 156 | Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted 157 | in Section 2.1. 158 | 159 | 3. Responsibilities 160 | ------------------- 161 | 162 | 3.1. Distribution of Source Form 163 | 164 | All distribution of Covered Software in Source Code Form, including any 165 | Modifications that You create or to which You contribute, must be under 166 | the terms of this License. You must inform recipients that the Source 167 | Code Form of the Covered Software is governed by the terms of this 168 | License, and how they can obtain a copy of this License. You may not 169 | attempt to alter or restrict the recipients' rights in the Source Code 170 | Form. 171 | 172 | 3.2. Distribution of Executable Form 173 | 174 | If You distribute Covered Software in Executable Form then: 175 | 176 | (a) such Covered Software must also be made available in Source Code 177 | Form, as described in Section 3.1, and You must inform recipients of 178 | the Executable Form how they can obtain a copy of such Source Code 179 | Form by reasonable means in a timely manner, at a charge no more 180 | than the cost of distribution to the recipient; and 181 | 182 | (b) You may distribute such Executable Form under the terms of this 183 | License, or sublicense it under different terms, provided that the 184 | license for the Executable Form does not attempt to limit or alter 185 | the recipients' rights in the Source Code Form under this License. 186 | 187 | 3.3. Distribution of a Larger Work 188 | 189 | You may create and distribute a Larger Work under terms of Your choice, 190 | provided that You also comply with the requirements of this License for 191 | the Covered Software. If the Larger Work is a combination of Covered 192 | Software with a work governed by one or more Secondary Licenses, and the 193 | Covered Software is not Incompatible With Secondary Licenses, this 194 | License permits You to additionally distribute such Covered Software 195 | under the terms of such Secondary License(s), so that the recipient of 196 | the Larger Work may, at their option, further distribute the Covered 197 | Software under the terms of either this License or such Secondary 198 | License(s). 199 | 200 | 3.4. Notices 201 | 202 | You may not remove or alter the substance of any license notices 203 | (including copyright notices, patent notices, disclaimers of warranty, 204 | or limitations of liability) contained within the Source Code Form of 205 | the Covered Software, except that You may alter any license notices to 206 | the extent required to remedy known factual inaccuracies. 207 | 208 | 3.5. Application of Additional Terms 209 | 210 | You may choose to offer, and to charge a fee for, warranty, support, 211 | indemnity or liability obligations to one or more recipients of Covered 212 | Software. However, You may do so only on Your own behalf, and not on 213 | behalf of any Contributor. You must make it absolutely clear that any 214 | such warranty, support, indemnity, or liability obligation is offered by 215 | You alone, and You hereby agree to indemnify every Contributor for any 216 | liability incurred by such Contributor as a result of warranty, support, 217 | indemnity or liability terms You offer. You may include additional 218 | disclaimers of warranty and limitations of liability specific to any 219 | jurisdiction. 220 | 221 | 4. Inability to Comply Due to Statute or Regulation 222 | --------------------------------------------------- 223 | 224 | If it is impossible for You to comply with any of the terms of this 225 | License with respect to some or all of the Covered Software due to 226 | statute, judicial order, or regulation then You must: (a) comply with 227 | the terms of this License to the maximum extent possible; and (b) 228 | describe the limitations and the code they affect. Such description must 229 | be placed in a text file included with all distributions of the Covered 230 | Software under this License. Except to the extent prohibited by statute 231 | or regulation, such description must be sufficiently detailed for a 232 | recipient of ordinary skill to be able to understand it. 233 | 234 | 5. Termination 235 | -------------- 236 | 237 | 5.1. The rights granted under this License will terminate automatically 238 | if You fail to comply with any of its terms. However, if You become 239 | compliant, then the rights granted under this License from a particular 240 | Contributor are reinstated (a) provisionally, unless and until such 241 | Contributor explicitly and finally terminates Your grants, and (b) on an 242 | ongoing basis, if such Contributor fails to notify You of the 243 | non-compliance by some reasonable means prior to 60 days after You have 244 | come back into compliance. Moreover, Your grants from a particular 245 | Contributor are reinstated on an ongoing basis if such Contributor 246 | notifies You of the non-compliance by some reasonable means, this is the 247 | first time You have received notice of non-compliance with this License 248 | from such Contributor, and You become compliant prior to 30 days after 249 | Your receipt of the notice. 250 | 251 | 5.2. If You initiate litigation against any entity by asserting a patent 252 | infringement claim (excluding declaratory judgment actions, 253 | counter-claims, and cross-claims) alleging that a Contributor Version 254 | directly or indirectly infringes any patent, then the rights granted to 255 | You by any and all Contributors for the Covered Software under Section 256 | 2.1 of this License shall terminate. 257 | 258 | 5.3. In the event of termination under Sections 5.1 or 5.2 above, all 259 | end user license agreements (excluding distributors and resellers) which 260 | have been validly granted by You or Your distributors under this License 261 | prior to termination shall survive termination. 262 | 263 | ************************************************************************ 264 | * * 265 | * 6. Disclaimer of Warranty * 266 | * ------------------------- * 267 | * * 268 | * Covered Software is provided under this License on an "as is" * 269 | * basis, without warranty of any kind, either expressed, implied, or * 270 | * statutory, including, without limitation, warranties that the * 271 | * Covered Software is free of defects, merchantable, fit for a * 272 | * particular purpose or non-infringing. The entire risk as to the * 273 | * quality and performance of the Covered Software is with You. * 274 | * Should any Covered Software prove defective in any respect, You * 275 | * (not any Contributor) assume the cost of any necessary servicing, * 276 | * repair, or correction. This disclaimer of warranty constitutes an * 277 | * essential part of this License. No use of any Covered Software is * 278 | * authorized under this License except under this disclaimer. * 279 | * * 280 | ************************************************************************ 281 | 282 | ************************************************************************ 283 | * * 284 | * 7. Limitation of Liability * 285 | * -------------------------- * 286 | * * 287 | * Under no circumstances and under no legal theory, whether tort * 288 | * (including negligence), contract, or otherwise, shall any * 289 | * Contributor, or anyone who distributes Covered Software as * 290 | * permitted above, be liable to You for any direct, indirect, * 291 | * special, incidental, or consequential damages of any character * 292 | * including, without limitation, damages for lost profits, loss of * 293 | * goodwill, work stoppage, computer failure or malfunction, or any * 294 | * and all other commercial damages or losses, even if such party * 295 | * shall have been informed of the possibility of such damages. This * 296 | * limitation of liability shall not apply to liability for death or * 297 | * personal injury resulting from such party's negligence to the * 298 | * extent applicable law prohibits such limitation. Some * 299 | * jurisdictions do not allow the exclusion or limitation of * 300 | * incidental or consequential damages, so this exclusion and * 301 | * limitation may not apply to You. * 302 | * * 303 | ************************************************************************ 304 | 305 | 8. Litigation 306 | ------------- 307 | 308 | Any litigation relating to this License may be brought only in the 309 | courts of a jurisdiction where the defendant maintains its principal 310 | place of business and such litigation shall be governed by laws of that 311 | jurisdiction, without reference to its conflict-of-law provisions. 312 | Nothing in this Section shall prevent a party's ability to bring 313 | cross-claims or counter-claims. 314 | 315 | 9. Miscellaneous 316 | ---------------- 317 | 318 | This License represents the complete agreement concerning the subject 319 | matter hereof. If any provision of this License is held to be 320 | unenforceable, such provision shall be reformed only to the extent 321 | necessary to make it enforceable. Any law or regulation which provides 322 | that the language of a contract shall be construed against the drafter 323 | shall not be used to construe this License against a Contributor. 324 | 325 | 10. Versions of the License 326 | --------------------------- 327 | 328 | 10.1. New Versions 329 | 330 | Mozilla Foundation is the license steward. Except as provided in Section 331 | 10.3, no one other than the license steward has the right to modify or 332 | publish new versions of this License. Each version will be given a 333 | distinguishing version number. 334 | 335 | 10.2. Effect of New Versions 336 | 337 | You may distribute the Covered Software under the terms of the version 338 | of the License under which You originally received the Covered Software, 339 | or under the terms of any subsequent version published by the license 340 | steward. 341 | 342 | 10.3. Modified Versions 343 | 344 | If you create software not governed by this License, and you want to 345 | create a new license for such software, you may create and use a 346 | modified version of this License if you rename the license and remove 347 | any references to the name of the license steward (except to note that 348 | such modified license differs from this License). 349 | 350 | 10.4. Distributing Source Code Form that is Incompatible With Secondary 351 | Licenses 352 | 353 | If You choose to distribute Source Code Form that is Incompatible With 354 | Secondary Licenses under the terms of this version of the License, the 355 | notice described in Exhibit B of this License must be attached. 356 | 357 | Exhibit A - Source Code Form License Notice 358 | ------------------------------------------- 359 | 360 | This Source Code Form is subject to the terms of the Mozilla Public 361 | License, v. 2.0. If a copy of the MPL was not distributed with this 362 | file, You can obtain one at http://mozilla.org/MPL/2.0/. 363 | 364 | If it is not possible or desirable to put the notice in a particular 365 | file, then You may include the notice in a location (such as a LICENSE 366 | file in a relevant directory) where a recipient would be likely to look 367 | for such a notice. 368 | 369 | You may add additional accurate notices of copyright ownership. 370 | 371 | Exhibit B - "Incompatible With Secondary Licenses" Notice 372 | --------------------------------------------------------- 373 | 374 | This Source Code Form is "Incompatible With Secondary Licenses", as 375 | defined by the Mozilla Public License, v. 2.0. 376 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Demo Consul 101 2 | 3 | Demo code and microservices for the HashiCorp Consul 101 course. 4 | 5 | Email training@hashicorp.com or see https://www.hashicorp.com/training for details. 6 | 7 | ## Quickstart: Docker Compose 8 | 9 | To run both microservices with Docker Compose (but without Consul), run `docker compose up`. 10 | 11 | ``` 12 | $ cd demo-consul-101 13 | $ docker-compose up 14 | ``` 15 | 16 | You can view the operational application dashboard at http://localhost:8080 17 | 18 | A subsequent evolution of the application would involve registering each service with Consul and using Consul DNS to 19 | configure services to discover each other. 20 | 21 | ## Quickstart: Consul service mesh 22 | 23 | If you have the Consul binary installed locally, you can use the following sequence of commands to run a demo mesh on 24 | your local laptop. 25 | 26 | Start a local Consul dev agent with: 27 | 28 | ``` 29 | consul agent -dev -config-dir="./demo-config-localhost" -node=laptop 30 | ``` 31 | 32 | Start the `dashboard-service` in a separate shell session. 33 | 34 | ``` 35 | PORT=9002 go run ./services/dashboard-service/main.go 36 | ``` 37 | 38 | Start the `counting-service` in a separate shell session. 39 | 40 | ``` 41 | PORT=9003 go run ./services/counting-service/main.go 42 | ``` 43 | 44 | Start a second instance of the `counting-service` in a separate shell session. 45 | 46 | ``` 47 | PORT=9004 go run ./services/counting-service/main.go 48 | ``` 49 | 50 | Start the sidecar proxy for the `counting-1` service instance in a separate shell session. 51 | 52 | ``` 53 | consul connect proxy -sidecar-for counting-1 54 | ``` 55 | 56 | Start the sidecar proxy for the `counting-2` service instance in a separate shell session. 57 | 58 | ``` 59 | consul connect proxy -sidecar-for counting-2 60 | ``` 61 | 62 | Start the sidecar proxy for the `dashboard` service in a separate shell session. 63 | 64 | ``` 65 | consul connect proxy -sidecar-for dashboard 66 | ``` 67 | 68 | Now visit the application at `localhost:9002`. 69 | -------------------------------------------------------------------------------- /demo-config-localhost/counting-1.json: -------------------------------------------------------------------------------- 1 | { 2 | "service": { 3 | "name": "counting", 4 | "id": "counting-1", 5 | "port": 9003, 6 | "check": { 7 | "http": "http://localhost:9003/health", 8 | "method": "GET", 9 | "interval": "1s", 10 | "timeout": "1s" 11 | }, 12 | "connect": { 13 | "sidecar_service": {} 14 | } 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /demo-config-localhost/counting-2.json: -------------------------------------------------------------------------------- 1 | { 2 | "service": { 3 | "name": "counting", 4 | "id": "counting-2", 5 | "port": 9004, 6 | "check": { 7 | "http": "http://localhost:9004/health", 8 | "method": "GET", 9 | "interval": "1s", 10 | "timeout": "1s" 11 | }, 12 | "connect": { 13 | "sidecar_service": {} 14 | } 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /demo-config-localhost/dashboard.json: -------------------------------------------------------------------------------- 1 | { 2 | "service": { 3 | "name": "dashboard", 4 | "port": 9002, 5 | "connect": { 6 | "sidecar_service": { 7 | "proxy": { 8 | "upstreams": [{ 9 | "destination_name": "counting", 10 | "local_bind_port": 9001 11 | }] 12 | } 13 | } 14 | }, 15 | "check": { 16 | "id": "dashboard-check", 17 | "http": "http://localhost:9002/health", 18 | "method": "GET", 19 | "interval": "1s", 20 | "timeout": "1s" 21 | } 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /docker-compose.yml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | version: '3' 5 | services: 6 | 7 | dashboard: 8 | container_name: dashboard 9 | hostname: dashboard 10 | image: 'hashicorp/dashboard-service:0.0.4' 11 | restart: always 12 | ports: 13 | - '8080:8080' 14 | environment: 15 | PORT: 8080 16 | COUNTING_SERVICE_URL: 'http://counting-service:9001' 17 | depends_on: 18 | - counting-service 19 | networks: 20 | - counting-service-network 21 | 22 | counting-service: 23 | container_name: counting-service 24 | hostname: counting-service 25 | image: 'hashicorp/counting-service:0.0.2' 26 | restart: always 27 | ports: 28 | - '9001:9001' 29 | environment: 30 | PORT: 9001 31 | networks: 32 | - counting-service-network 33 | 34 | networks: 35 | counting-service-network: 36 | driver: bridge 37 | -------------------------------------------------------------------------------- /envoy-manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "latestVersion": "1.18.3", 3 | "versions": { 4 | "1.18.3": { 5 | "releaseDate": "2021-05-11", 6 | "tarballs": { 7 | "darwin/amd64": "https://archive.tetratelabs.io/envoy/download/v1.18.3/envoy-v1.18.3-darwin-amd64.tar.xz", 8 | "darwin/arm64": "https://archive.tetratelabs.io/envoy/download/v1.18.3/envoy-v1.18.3-darwin-amd64.tar.xz", 9 | "linux/amd64": "https://archive.tetratelabs.io/envoy/download/v1.18.3/envoy-v1.18.3-linux-amd64.tar.xz", 10 | "linux/arm64": "https://archive.tetratelabs.io/envoy/download/v1.18.3/envoy-v1.18.3-linux-arm64.tar.xz", 11 | "windows/amd64": "https://archive.tetratelabs.io/envoy/download/v1.18.3/envoy-v1.18.3-windows-amd64.tar.xz" 12 | } 13 | } 14 | }, 15 | "sha256sums": { 16 | "envoy-v1.18.3-darwin-amd64.tar.xz": "cb27be135f0d48167b756d17fa9117ed6295ee3f69e4db7900b94ddffef463e1", 17 | "envoy-v1.18.3-darwin-arm64.tar.xz": "cb27be135f0d48167b756d17fa9117ed6295ee3f69e4db7900b94ddffef463e1", 18 | "envoy-v1.18.3-linux-amd64.tar.xz": "10e1c6bc354018578f02c97358d3bbc9a26d4989cf752963611e69dac52656f4", 19 | "envoy-v1.18.3-linux-arm64.tar.xz": "367d61bf246d56cc24949574977edefa4649ad2072c08d57a8bd63c44d991d25", 20 | "envoy-v1.18.3-windows-amd64.tar.xz": "1274f55b3022bc1331aed41089f189094e00729981fe132ce00aac6272ea0770" 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /k8s/01-yaml-minimal/counting-load-balancer.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | apiVersion: v1 5 | kind: Service 6 | metadata: 7 | name: counting-minimal-load-balancer 8 | spec: 9 | ports: 10 | - protocol: "TCP" 11 | port: 80 12 | targetPort: 9001 13 | selector: 14 | app: counting 15 | type: LoadBalancer 16 | -------------------------------------------------------------------------------- /k8s/01-yaml-minimal/counting-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | # Pod example without Consul 5 | apiVersion: v1 6 | kind: Pod 7 | metadata: 8 | name: counting-minimal-pod 9 | labels: 10 | app: counting 11 | spec: 12 | containers: 13 | - name: counting 14 | image: hashicorp/counting-service:0.0.2 15 | ports: 16 | - containerPort: 9001 17 | -------------------------------------------------------------------------------- /k8s/02-yaml-discovery/counting-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | apiVersion: v1 5 | kind: Pod 6 | metadata: 7 | name: counting 8 | annotations: 9 | consul.hashicorp.com/connect-inject: "true" 10 | spec: 11 | containers: 12 | - name: counting 13 | image: hashicorp/counting-service:0.0.2 14 | ports: 15 | - containerPort: 9001 16 | name: http -------------------------------------------------------------------------------- /k8s/02-yaml-discovery/dashboard-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | apiVersion: v1 5 | kind: Pod 6 | metadata: 7 | name: dashboard 8 | labels: 9 | app: dashboard 10 | annotations: 11 | consul.hashicorp.com/connect-inject: "true" 12 | consul.hashicorp.com/connect-service-upstreams: "counting:9001" 13 | spec: 14 | containers: 15 | - name: dashboard 16 | image: hashicorp/dashboard-service:0.0.3 17 | ports: 18 | - containerPort: 9002 19 | env: 20 | - name: COUNTING_SERVICE_URL 21 | value: "http://counting.service.consul:9001" 22 | --- 23 | apiVersion: v1 24 | kind: Service 25 | metadata: 26 | name: dashboard-load-balancer 27 | namespace: default 28 | labels: 29 | app: dashboard 30 | spec: 31 | ports: 32 | - protocol: TCP 33 | port: 80 34 | targetPort: 9002 35 | selector: 36 | app: dashboard 37 | type: LoadBalancer 38 | loadBalancerIP: "" 39 | -------------------------------------------------------------------------------- /k8s/03-yaml-connect/counting-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | apiVersion: v1 5 | kind: Pod 6 | metadata: 7 | name: counting-deployment 8 | spec: 9 | containers: 10 | - name: counting 11 | image: hashicorp/counting-service:0.0.2 12 | ports: 13 | - containerPort: 9001 14 | name: http -------------------------------------------------------------------------------- /k8s/03-yaml-connect/dashboard-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | apiVersion: v1 5 | kind: Pod 6 | metadata: 7 | name: dashboard 8 | labels: 9 | app: dashboard 10 | spec: 11 | containers: 12 | - name: dashboard 13 | image: hashicorp/dashboard-service:0.0.3 14 | ports: 15 | - containerPort: 9002 16 | env: 17 | - name: COUNTING_SERVICE_URL 18 | value: "http://localhost:9001" 19 | --- 20 | apiVersion: "v1" 21 | kind: "Service" 22 | metadata: 23 | name: "dashboard-load-balancer" 24 | namespace: "default" 25 | labels: 26 | app: dashboard 27 | spec: 28 | ports: 29 | - protocol: "TCP" 30 | port: 80 31 | targetPort: 9002 32 | selector: 33 | app: "dashboard" 34 | type: "LoadBalancer" 35 | loadBalancerIP: "" 36 | -------------------------------------------------------------------------------- /k8s/04-yaml-connect-envoy/counting-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | --- 5 | apiVersion: v1 6 | kind: Service 7 | metadata: 8 | name: counting 9 | spec: 10 | selector: 11 | app: counting 12 | ports: 13 | - name: http 14 | protocol: TCP 15 | port: 9001 16 | targetPort: 9001 17 | --- 18 | apiVersion: v1 19 | kind: ServiceAccount 20 | metadata: 21 | name: counting 22 | automountServiceAccountToken: true 23 | --- 24 | apiVersion: consul.hashicorp.com/v1alpha1 25 | kind: ServiceDefaults 26 | metadata: 27 | name: counting 28 | spec: 29 | protocol: "http" 30 | --- 31 | apiVersion: apps/v1 32 | kind: Deployment 33 | metadata: 34 | name: counting 35 | spec: 36 | replicas: 1 37 | selector: 38 | matchLabels: 39 | service: counting 40 | app: counting 41 | template: 42 | metadata: 43 | labels: 44 | service: counting 45 | app: counting 46 | annotations: 47 | consul.hashicorp.com/connect-inject: "true" 48 | consul.hashicorp.com/connect-service-upstreams: "dashboard:9002" 49 | spec: 50 | serviceAccountName: counting 51 | containers: 52 | - name: counting 53 | image: hashicorp/counting-service:0.0.2 54 | ports: 55 | - containerPort: 9001 56 | -------------------------------------------------------------------------------- /k8s/04-yaml-connect-envoy/dashboard-service.yaml: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | --- 5 | apiVersion: v1 6 | kind: Service 7 | metadata: 8 | name: dashboard 9 | spec: 10 | selector: 11 | app: dashboard 12 | ports: 13 | - name: http 14 | protocol: TCP 15 | port: 9002 16 | targetPort: 9002 17 | --- 18 | apiVersion: v1 19 | kind: ServiceAccount 20 | metadata: 21 | name: dashboard 22 | automountServiceAccountToken: true 23 | --- 24 | apiVersion: consul.hashicorp.com/v1alpha1 25 | kind: ServiceDefaults 26 | metadata: 27 | name: dashboard 28 | spec: 29 | protocol: "http" 30 | --- 31 | apiVersion: apps/v1 32 | kind: Deployment 33 | metadata: 34 | name: dashboard 35 | spec: 36 | replicas: 1 37 | selector: 38 | matchLabels: 39 | service: dashboard 40 | app: dashboard 41 | template: 42 | metadata: 43 | labels: 44 | service: dashboard 45 | app: dashboard 46 | annotations: 47 | consul.hashicorp.com/connect-inject: "true" 48 | consul.hashicorp.com/connect-service-upstreams: "counting:9001" 49 | spec: 50 | serviceAccountName: dashboard 51 | containers: 52 | - name: dashboard 53 | image: hashicorp/dashboard-service:0.0.4 54 | ports: 55 | - containerPort: 9002 56 | name: http 57 | env: 58 | - name: COUNTING_SERVICE_URL 59 | value: "http://localhost:9001" 60 | --- 61 | #apiVersion: "v1" 62 | #kind: "Service" 63 | #metadata: 64 | # name: "dashboard-load-balancer" 65 | # namespace: "default" 66 | # labels: 67 | # app: "dashboard" 68 | #spec: 69 | # ports: 70 | # - protocol: "TCP" 71 | # port: 80 72 | # targetPort: 9002 73 | # selector: 74 | # app: "dashboard" 75 | # type: "LoadBalancer" 76 | # loadBalancerIP: "" 77 | -------------------------------------------------------------------------------- /k8s/README.md: -------------------------------------------------------------------------------- 1 | # Kubernetes Services with Consul Service Discovery 2 | 3 | This README briefly sketches the sequence of steps for setting up Google Cloud for Kubernetes and Consul. 4 | 5 | For a Microsoft Azure version, see the README and Terraform configs in the [terraform/azure](https://github.com/hashicorp/demo-consul-101/tree/master/k8s/terraform/azure) directory. 6 | 7 | For either, you can use the same YAML files to deploy the demo applications to the Kubernetes cluster. 8 | 9 | ## Prerequisites and Setup 10 | 11 | We assume that you have installed the `gcloud` command line tool, `helm`, and `kubectl`. 12 | 13 | https://cloud.google.com/sdk/docs/downloads-interactive 14 | 15 | ```sh 16 | $ gcloud init 17 | ``` 18 | 19 | Install `helm` and `kubectl` with Homebrew. 20 | 21 | ```sh 22 | $ brew install kubernetes-cli 23 | $ brew install kubernetes-helm 24 | ``` 25 | 26 | ### Service account authentication 27 | 28 | It's recommended that you create a GCP IAM service account and authenticate with it on the command line. 29 | 30 | https://console.cloud.google.com/iam-admin/serviceaccounts 31 | 32 | https://cloud.google.com/sdk/gcloud/reference/auth/activate-service-account 33 | 34 | ```sh 35 | $ gcloud auth activate-service-account --key-file="my-consul-service-account.json" 36 | ``` 37 | 38 | ### Create a kubernetes cluster 39 | 40 | https://console.cloud.google.com/kubernetes/list 41 | 42 | Click "Create Cluster" and use the defaults. Find the "Create" button at the bottom of the drawer. 43 | 44 | ### Configure kubectl to talk to your cluster 45 | 46 | Go to the web UI, find "Clusters". Click the "Connect" button. Copy the snippet and paste it into your terminal. 47 | 48 | ```sh 49 | $ gcloud container clusters get-credentials my-consul-cluster \ 50 | --zone us-west1-b --project my-project 51 | ``` 52 | 53 | ## Task 1: Run the simplest container 54 | 55 | In this task, you'll deploy a container that returns JSON that includes a number and the name of the host. You'll put a 56 | load balancer in front so that you can see the output. 57 | 58 | ### Create minimal yaml config 59 | 60 | Here is the simplest configuration that will deploy a container. Create a file named `counting-minimal.yaml` and paste these 61 | contents into it. 62 | 63 | ```yaml 64 | apiVersion: v1 65 | kind: Pod 66 | metadata: 67 | name: counting-minimal-pod 68 | labels: 69 | app: counting 70 | spec: 71 | containers: 72 | - name: counting 73 | image: hashicorp/counting-service:0.0.1 74 | ports: 75 | - containerPort: 9001 76 | ``` 77 | 78 | This code has been created in this repository. Apply to the cluster with: 79 | 80 | ```sh 81 | $ kubectl apply -f 01-yaml-minimal/counting-service.yaml 82 | 83 | pod/counting-minimal-pod created 84 | ``` 85 | 86 | Look at the Google web console. look at logs. You should see 87 | 88 | ```plaintext 89 | Serving at http://localhost:9001 90 | ``` 91 | 92 | Connect to the pod from your local machine. 93 | 94 | ```sh 95 | $ kubectl port-forward pod/counting-minimal-pod 9001:9001 96 | ``` 97 | 98 | Now visit http://localhost:9001/ 99 | 100 | You should see JSON that contains a number and the name of the host. 101 | 102 | ### Implement load balancer 103 | 104 | Sometimes we want a pod to surface on an IP address outside of the cluster. Let's add a load balancer. 105 | 106 | Add the following under the pod definition in the same `counting-minimal.yaml` file (or see the completed code in this repository). 107 | 108 | ```yaml 109 | --- 110 | apiVersion: v1 111 | kind: Service 112 | metadata: 113 | name: counting-minimal-load-balancer 114 | spec: 115 | ports: 116 | - protocol: "TCP" 117 | port: 80 118 | targetPort: 9001 119 | selector: 120 | app: counting 121 | type: LoadBalancer 122 | 123 | ``` 124 | 125 | Apply with 126 | 127 | ```sh 128 | $ kubectl apply -f 01-yaml-minimal/counting-load-balancer.yaml 129 | 130 | service/counting-minimal-load-balancer created 131 | ``` 132 | 133 | Visit the Google Cloud console and go to "Services." You will see a service of type "Load Balancer" with an IP address 134 | next to it. Click the IP address and you'll see JSON output from the counting service. 135 | 136 | ```json 137 | {"count":1,"hostname":"counting-minimal-pod"} 138 | ``` 139 | 140 | ### Gather data 141 | 142 | ```sh 143 | $ kubectl get pods 144 | ``` 145 | 146 | ```sh 147 | $ kubectl logs counting-minimal-pod 148 | 149 | Serving at http://localhost:9001 150 | (Pass as PORT environment variable) 151 | ``` 152 | 153 | ```sh 154 | $ kubectl get pods --output=json 155 | ``` 156 | 157 | Connect to a running pod. 158 | 159 | ```sh 160 | $ kubectl exec -it counting-minimal-pod /bin/sh 161 | ``` 162 | 163 | Run commands like `env` or try to start `counting-service` manually with a different port. 164 | 165 | ```sh 166 | $ PORT=9002 ./counting-service 167 | ``` 168 | 169 | ### Delete the pod 170 | 171 | We're done with this pod, so delete it (and the load balancer). 172 | 173 | ```sh 174 | $ kubectl delete -f 01-yaml-minimal 175 | ``` 176 | 177 | ## Task 2: Use helm to install Consul to your cluster 178 | 179 | Now you will download the official Consul Helm chart and use it to install Consul. To install the chart, you will need to 180 | add the hashicorp Helm repo using `helm repo add`. 181 | 182 | ```sh 183 | $ helm repo add hashicorp https://helm.releases.hashicorp.com 184 | ``` 185 | 186 | Review the file in this directory named `config.yaml`. It has a minimal Consul configuration that will allow 187 | you to get started using Consul. 188 | 189 | ```yaml 190 | global: 191 | datacenter: dc1 192 | 193 | ui: 194 | service: 195 | type: "LoadBalancer" 196 | 197 | controller: 198 | enabled: true 199 | 200 | connectInject: 201 | enabled: true 202 | ``` 203 | 204 | Install Consul to the cluster using he values file. 205 | 206 | ``` 207 | $ helm install -f config.yaml ./consul-helm --version "0.30.0" 208 | ``` 209 | 210 | Verify that this worked by going to "Services" in the Google Cloud console. Find the load balancer for `*-consul-ui`. 211 | Click the IP address and you'll see the Consul web UI. 212 | 213 | ## Task 3: Use Consul K/V 214 | 215 | Let's use Consul's key/value store. 216 | 217 | Connect to the `consul-server-0` pod. 218 | 219 | ```sh 220 | $ kubectl exec -it consul-server-0 -- /bin/sh 221 | ``` 222 | 223 | Once connected, run a command that saves a value to Consul. 224 | 225 | ```sh 226 | $ consul kv put redis/config/connections 5 227 | Success! Data written to: redis/config/connections 228 | ``` 229 | 230 | Go to the Consul web UI and look in the **Key/Value** tab. You should see the hierarchy that contains the `redis/config/connections` value. 231 | 232 | Use the web UI to change the value to 10. Go back to the pod and `get` the value. 233 | 234 | ```sh 235 | $ consul kv get redis/config/connections 236 | 10 237 | ``` 238 | 239 | You're now running Consul's key/value store and can work with data. 240 | 241 | Exit from the `consul-server-0` pod to continue to the next task. 242 | 243 | ``` 244 | $ exit 245 | ``` 246 | 247 | -> **NOTE:** Neither `envconsul` or `consul-template` are installed in this container and must be installed separately 248 | if you plan to use them. 249 | 250 | ## Task 4: Create an application that uses Consul service discovery 251 | 252 | In order for Consul service discovery to work, we need to enable Consul within the Kubernetes DNS system. See the 253 | [documentation](https://www.consul.io/docs/platform/k8s/dns.html) for details. 254 | 255 | Run the stub DNS script in this demo repo. This script will add a [Stub-domain](https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/) 256 | config map entry for the Consul DNS server. 257 | 258 | ```sh 259 | $ bin/enable-consul-stub-dns.sh 260 | configmap/kube-dns configured 261 | ``` 262 | 263 | Deploy an application with Kubernetes. The yaml files for deploying this application are in this repository. Notice that 264 | the `dashboard-server` uses `counting.service.consul` to reach the counting service. This is Consul DNS enabling service 265 | discovery! 266 | 267 | ```sh 268 | $ kubectl apply -f 02-yaml-discovery/ 269 | pod/counting-deployment created 270 | pod/dashboard created 271 | service/dashboard-load-balancer created 272 | ``` 273 | 274 | Refresh your [GCP](https://console.cloud.google.com/kubernetes) console. Go to "Services", and you should see a public IP 275 | address for the `dashboard-service-load-balancer`. Visit it to see the dashboard and counting service which are communicating 276 | to each other using Consul service discovery. (See code in `dashboard-service` for details.) 277 | 278 | ## Task 5: Create an application that uses Consul service mesh secure service segmentation 279 | 280 | The `counting` service needs to start an extra container running `consul` that manually starts its own proxy. The consul 281 | binary can be found on your consul pod. The following pod is the same example from above. 282 | 283 | ```sh 284 | kubectl apply -f 04-yaml-connect-envoy 285 | ``` 286 | 287 | Retrieve the public IP address of the `dashboard-load-balancer`. If you the `EXTERNAL-IP` for the load balancer is set to 288 | `` wait a minute or two and try again. You may have to run this several times until the resource is allocated 289 | by your cloud provider. 290 | 291 | ```sh 292 | $ kubectl get svc 293 | NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE 294 | consul-connect-injector-svc ClusterIP 10.72.1.252 443/TCP 7d23h 295 | consul-controller-webhook ClusterIP 10.72.10.41 443/TCP 7d23h 296 | consul-dns ClusterIP 10.72.5.39 53/TCP,53/UDP 7d23h 297 | consul-ingress-gateway LoadBalancer 10.72.1.11 35.225.10.155 8080:32306/TCP,8443:32079/TCP 7d22h 298 | consul-server ClusterIP None 8500/TCP,8301/TCP,8301/UDP,8302/TCP,8302/UDP,8300/TCP,8600/TCP,8600/UDP 7d23h 299 | consul-ui ClusterIP 10.72.1.246 80/TCP 7d23h 300 | dashboard-load-balancer LoadBalancer 10.72.1.67 34.66.3.28 80:30840/TCP 3m19s 301 | kubernetes ClusterIP 10.72.0.1 443/TCP 8d 302 | ``` 303 | 304 | ## Extra: Debugging 305 | 306 | Start an interactive terminal on a pod running in the cluster. 307 | 308 | ```sh 309 | $ kubectl exec -it consul-server-0 /bin/sh 310 | ``` 311 | 312 | View logs for a pod. 313 | 314 | ``` 315 | $ kubectl logs consul-server-0 316 | ``` 317 | 318 | Review the helm chart configuration that was applied during installation. 319 | 320 | ``` 321 | $ helm template hashicorp/consul 322 | ``` 323 | 324 | Inspect environment variabels from within a pod. 325 | 326 | ```sh 327 | $ env 328 | ``` 329 | 330 | Validate service discovery 331 | 332 | ``` 333 | $ kubectl exec dashboard -- ping counting.service.consul 334 | ``` 335 | 336 | ## Advanced 337 | 338 | If you are using deployments, you can scale them up to start more service instances using `kubectl scale`. 339 | 340 | ```sh 341 | $ kubectl get deployments 342 | $ kubectl scale deployments/counting --replicas=2 343 | ``` 344 | 345 | Or in a deployment definition within a yaml file. 346 | 347 | ```yaml 348 | spec: 349 | replicas: 5 350 | ``` 351 | 352 | You can also add health checks to your pod or deployment specs. 353 | 354 | ```yaml 355 | spec: 356 | containers: 357 | - name: "..." 358 | livenessProbe: 359 | # an http probe 360 | httpGet: 361 | path: /health 362 | port: 9002 363 | # length of time to wait for a pod to initialize 364 | # after pod startup, before applying health checking 365 | initialDelaySeconds: 30 366 | timeoutSeconds: 1 367 | # Other content omitted 368 | ``` 369 | 370 | https://kubernetes.io/docs/tutorials/k8s101/ 371 | 372 | https://kubernetes.io/docs/tutorials/k8s201/ 373 | 374 | Networking: https://kubernetes.io/docs/tutorials/services/source-ip/ 375 | 376 | ```sh 377 | $ kubectl get nodes --out=yaml 378 | ``` 379 | 380 | ## Other/Random Notes 381 | 382 | ### Run Service 383 | 384 | https://kubernetes.io/docs/concepts/overview/object-management-kubectl/declarative-config/ 385 | 386 | https://docs.docker.com/get-started/part2/ 387 | 388 | https://www.consul.io/api/agent/service.html#register-service 389 | 390 | ### Start K8S Dashboard 391 | 392 | kubectl proxy --port=8080 393 | 394 | ### Get Bearer Token for K8S Dashboard 395 | 396 | gcloud config config-helper --format=json 397 | 398 | ### Catalog sync 399 | 400 | These permissions may be needed: 401 | 402 | ```sh 403 | $ kubectl set subject clusterrolebinding system:node --group=system:nodes 404 | 405 | kubectl create rolebinding admin --clusterrole=admin --user="system:serviceaccount:default:default" --namespace=default 406 | ``` 407 | -------------------------------------------------------------------------------- /k8s/bin/enable-consul-stub-dns.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | # Copyright (c) HashiCorp, Inc. 3 | # SPDX-License-Identifier: MPL-2.0 4 | 5 | 6 | # Loads a ConfigMap that allows pods to use the `.consul` TLD. 7 | # https://www.consul.io/docs/platform/k8s/dns.html 8 | 9 | cat </dev/null || echo no-commit-id) 2 | IMAGE_NAME := hashicorp/counting-service 3 | VERSION := 0.0.2 4 | 5 | .DEFAULT_GOAL := help 6 | help: ## List targets & descriptions 7 | @cat Makefile* | grep -E '^[a-zA-Z_-]+:.*?## .*$$' | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' 8 | 9 | build: ## Build docker image 10 | docker build -t $(IMAGE_NAME):$(VERSION) . 11 | docker tag $(IMAGE_NAME):$(VERSION) $(IMAGE_NAME):$(VERSION) 12 | 13 | push: ## docker push the service images tagged 'latest' & 'BUILD_ID' 14 | docker push $(IMAGE_NAME):$(VERSION) 15 | 16 | run: ## run docker image locally 17 | docker run -it $(IMAGE_NAME):$(VERSION) 18 | -------------------------------------------------------------------------------- /k8s/counting-service/counting-service: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hashicorp/demo-consul-101/4d4c30fe33a95a1203ee507b5065bf8dfa5ac59a/k8s/counting-service/counting-service -------------------------------------------------------------------------------- /k8s/dashboard-service/Dockerfile: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | FROM alpine:3.7 5 | WORKDIR /app 6 | ADD . /app 7 | EXPOSE 9002 8 | ENV PORT 9002 9 | ENV COUNTING_SERVICE_URL http://counting.service.consul:9001 10 | CMD ["./dashboard-service"] 11 | -------------------------------------------------------------------------------- /k8s/dashboard-service/Makefile: -------------------------------------------------------------------------------- 1 | BUILD_ID := $(shell git rev-parse --short HEAD 2>/dev/null || echo no-commit-id) 2 | IMAGE_NAME := hashicorp/dashboard-service 3 | VERSION := 0.0.4 4 | 5 | .DEFAULT_GOAL := help 6 | help: ## List targets & descriptions 7 | @cat Makefile* | grep -E '^[a-zA-Z_-]+:.*?## .*$$' | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' 8 | 9 | build: ## Build docker image 10 | docker build -t $(IMAGE_NAME):$(VERSION) . 11 | docker tag $(IMAGE_NAME):$(VERSION) $(IMAGE_NAME):$(VERSION) 12 | 13 | push: ## docker push the service images 14 | docker push $(IMAGE_NAME):$(VERSION) 15 | 16 | run: ## run docker image locally 17 | docker run -it $(IMAGE_NAME):$(VERSION) 18 | -------------------------------------------------------------------------------- /k8s/dashboard-service/dashboard-service: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hashicorp/demo-consul-101/4d4c30fe33a95a1203ee507b5065bf8dfa5ac59a/k8s/dashboard-service/dashboard-service -------------------------------------------------------------------------------- /k8s/terraform/azure/01-create-aks-cluster/aks-cluster.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | variable "prefix" { 5 | default = "demo" 6 | } 7 | 8 | variable "appId" { 9 | } 10 | 11 | variable "password" { 12 | } 13 | 14 | provider "azurerm" { 15 | version = "~> 1.27.0" 16 | } 17 | 18 | resource "azurerm_resource_group" "default" { 19 | name = "${var.prefix}-rg" 20 | location = "West US 2" 21 | 22 | tags = { 23 | environment = "Demo" 24 | } 25 | } 26 | 27 | resource "azurerm_kubernetes_cluster" "default" { 28 | name = "${var.prefix}-aks" 29 | location = azurerm_resource_group.default.location 30 | resource_group_name = azurerm_resource_group.default.name 31 | dns_prefix = "${var.prefix}-k8s" 32 | 33 | agent_pool_profile { 34 | name = "default" 35 | count = 3 36 | vm_size = "Standard_D2_v2" 37 | os_type = "Linux" 38 | os_disk_size_gb = 30 39 | } 40 | 41 | service_principal { 42 | client_id = var.appId 43 | client_secret = var.password 44 | } 45 | 46 | role_based_access_control { 47 | enabled = true 48 | } 49 | 50 | tags = { 51 | environment = "Demo" 52 | } 53 | 54 | provisioner "local-exec" { 55 | # Load credentials to local environment so subsequent kubectl commands can be run 56 | command = <> zips/SHA256SUMS.txt 35 | done 36 | 37 | cd ${STARTDIR} 38 | 39 | 40 | cd dashboard-service/ 41 | rice embed-go 42 | SERVICES="../dashboard-service/" 43 | 44 | OSES='windows solaris' 45 | ARCHS='amd64 386' 46 | OSARCH='!darwin/386' 47 | gox -os="${OSES}" -arch="${ARCHS}" -osarch="${OSARCH}" "${SERVICES}" 48 | 49 | OSES='darwin' 50 | ARCHS='amd64 arm64' 51 | OSARCH='!darwin/386' 52 | gox -os="${OSES}" -arch="${ARCHS}" -osarch="${OSARCH}" ${SERVICES} 53 | 54 | OSES='linux freebsd' 55 | ARCHS='arm arm64 amd64 386' 56 | gox -os="${OSES}" -arch="${ARCHS}" "${SERVICES}" 57 | 58 | mv dashboard-service* ../pkg/ 59 | cd ../pkg/ 60 | FILES=`ls -pd * | grep -v /` 61 | echo $FILES 62 | echo "Checksumming and compressing builds..." 63 | for FILE in ${FILES} 64 | do 65 | echo " ${FILE}..." 66 | zip zips/${FILE}.zip ${FILE} 67 | shasum --algorithm 256 zips/${FILE}.zip >> zips/SHA256SUMS.txt 68 | done -------------------------------------------------------------------------------- /services/clean_all: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | echo "Cleaning up build artifacts..." 4 | rm -rf pkg 5 | echo "Complete" 6 | 7 | -------------------------------------------------------------------------------- /services/counting-service/.gitignore: -------------------------------------------------------------------------------- 1 | dist/* 2 | -------------------------------------------------------------------------------- /services/counting-service/README.md: -------------------------------------------------------------------------------- 1 | # Counting Service 2 | 3 | A web service that increments a count every time it is invoked. It returns the current count as JSON. 4 | 5 | For use in learning to use Consul for service discovery and segmentation (connection via secure proxies). 6 | 7 | Defaults to running on port 80. Set `PORT` as ENV var to specify another port. 8 | 9 | ### Build 10 | 11 | Build for Linux and Darwin: 12 | 13 | ./bin/build 14 | 15 | Output can be found in `dist`. 16 | 17 | ### Run from source 18 | 19 | go get 20 | PORT=9001 go run main.go 21 | 22 | ### View 23 | 24 | http://localhost:9001 25 | 26 | ### Dependencies 27 | 28 | This application is intended to be used by the dashboard service. 29 | -------------------------------------------------------------------------------- /services/counting-service/bin/build: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | APPNAME=$(basename `pwd`) 4 | 5 | # Build linux version 6 | GOOS=linux GOARCH=amd64 go build -v . 7 | mkdir -p dist/linux-amd64 8 | mv $APPNAME dist/linux-amd64/ 9 | cd dist/linux-amd64 10 | zip $APPNAME.zip $APPNAME 11 | cd ../../ 12 | 13 | # Build linux version 14 | GOOS=linux GOARCH=arm64 go build -v . 15 | mkdir -p dist/linux-amd64 16 | mv $APPNAME dist/linux-amd64/ 17 | cd dist/linux-amd64 18 | zip $APPNAME.zip $APPNAME 19 | cd ../../ 20 | 21 | # Build for Mac OSX (ARM) 22 | GOOS=darwin GOARCH=arm64 go build -v . 23 | mkdir -p dist/darwin-amd64 24 | mv $APPNAME dist/darwin-amd64/ 25 | cd dist/darwin-amd64 26 | zip $APPNAME.zip $APPNAME 27 | cd ../../ 28 | 29 | 30 | # Build for Mac OSX 31 | GOOS=darwin GOARCH=amd64 go build -v . 32 | mkdir -p dist/darwin-amd64 33 | mv $APPNAME dist/darwin-amd64/ 34 | cd dist/darwin-amd64 35 | zip $APPNAME.zip $APPNAME 36 | cd ../../ 37 | 38 | 39 | GOOS=windows GOARCH=amd64 go build -v . 40 | mkdir -p dist/darwin-amd64 41 | mv $APPNAME dist/darwin-amd64/ 42 | cd dist/darwin-amd64 43 | zip $APPNAME.zip $APPNAME 44 | cd ../../ 45 | 46 | 47 | # Build for Windows 48 | GOOS=windows GOARCH=amd64 go build -v . 49 | mkdir -p dist/darwin-amd64 50 | mv $APPNAME dist/darwin-amd64/ 51 | cd dist/darwin-amd64 52 | zip $APPNAME.zip $APPNAME 53 | cd ../../ 54 | -------------------------------------------------------------------------------- /services/counting-service/go.mod: -------------------------------------------------------------------------------- 1 | module github.com/hashicorp/demo-consul-101/services/counting-service 2 | 3 | go 1.17 4 | 5 | require github.com/gorilla/mux v1.8.0 6 | -------------------------------------------------------------------------------- /services/counting-service/go.sum: -------------------------------------------------------------------------------- 1 | github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI= 2 | github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So= 3 | -------------------------------------------------------------------------------- /services/counting-service/main.go: -------------------------------------------------------------------------------- 1 | // Copyright (c) HashiCorp, Inc. 2 | // SPDX-License-Identifier: MPL-2.0 3 | 4 | package main 5 | 6 | import ( 7 | "encoding/json" 8 | "fmt" 9 | "log" 10 | "net/http" 11 | "os" 12 | "sync/atomic" 13 | 14 | "github.com/gorilla/mux" 15 | ) 16 | 17 | func main() { 18 | port := os.Getenv("PORT") 19 | if port == "" { 20 | port = "80" 21 | } 22 | portWithColon := fmt.Sprintf(":%s", port) 23 | 24 | router := mux.NewRouter() 25 | router.HandleFunc("/health", HealthHandler) 26 | 27 | var index uint64 28 | router.PathPrefix("/").Handler(CountHandler{index: &index}) 29 | 30 | // Serve! 31 | fmt.Printf("Serving at http://localhost:%s\n(Pass as PORT environment variable)\n", port) 32 | log.Fatal(http.ListenAndServe(portWithColon, router)) 33 | } 34 | 35 | // HealthHandler returns a succesful status and a message. 36 | // For use by Consul or other processes that need to verify service health. 37 | func HealthHandler(w http.ResponseWriter, r *http.Request) { 38 | w.WriteHeader(http.StatusOK) 39 | fmt.Fprintf(w, "Hello, you've hit %s\n", r.URL.Path) 40 | } 41 | 42 | // Count stores a number that is being counted and other data to 43 | // return as JSON in the API. 44 | type Count struct { 45 | Count uint64 `json:"count"` 46 | Hostname string `json:"hostname"` 47 | } 48 | 49 | // CountHandler serves a JSON feed that contains a number that increments each time 50 | // the API is called. 51 | type CountHandler struct { 52 | index *uint64 53 | } 54 | 55 | func (h CountHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { 56 | atomic.AddUint64(h.index, 1) 57 | hostname, _ := os.Hostname() 58 | index := atomic.LoadUint64(h.index) 59 | 60 | count := Count{Count: index, Hostname: hostname} 61 | 62 | responseJSON, _ := json.Marshal(count) 63 | fmt.Fprintf(w, string(responseJSON)) 64 | } 65 | -------------------------------------------------------------------------------- /services/dashboard-service/.gitignore: -------------------------------------------------------------------------------- 1 | rice-box.go 2 | dist/* 3 | dashboard-service 4 | -------------------------------------------------------------------------------- /services/dashboard-service/README.md: -------------------------------------------------------------------------------- 1 | # Dashboard Service 2 | 3 | A web application that displays a numeric dashboard. It retrieves a count from a backend counting service and displays a live update. 4 | 5 | For use in learning to use Consul for service discovery and segmentation (connection via secure proxies). 6 | 7 | Defaults to running on port 80. Set `PORT` as ENV var to specify another port. 8 | 9 | Defaults to looking for the `counting-service` running at `localhost:9001`. Can be set with the `COUNTING_SERVICE_URL` ENV var. 10 | 11 | ### Run precompiled binary 12 | 13 | To run with the defaults (port 80, looking for the backend counting service at `localhost:9001`): 14 | 15 | dashboard-service 16 | 17 | To run on a specific port or looking for the `counting-service` elsewhere: 18 | 19 | PORT=9002 COUNTING_SERVICE_URL=counting.service.consul dashboard-service 20 | 21 | ### Build 22 | 23 | Build for Linux and Darwin: 24 | 25 | ./bin/build 26 | 27 | Output can be found in `dist`. 28 | 29 | ### Run from source 30 | 31 | go get 32 | PORT=9002 go run main.go 33 | 34 | ### View 35 | 36 | http://localhost:9002 37 | 38 | ### Dependencies 39 | 40 | This application assumes that a counting service is running on `localhost:9001`. 41 | -------------------------------------------------------------------------------- /services/dashboard-service/assets/app.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Copyright (c) HashiCorp, Inc. 3 | * SPDX-License-Identifier: MPL-2.0 4 | */ 5 | 6 | var socket = io({ transports: ["websocket"] }); 7 | 8 | function disconnected(message) { 9 | $("#connection-status").removeClass("connected"); 10 | $("#connection-status").text("Disconnected"); 11 | } 12 | 13 | function disconnectedFromBackendService(message) { 14 | $("#connection-status").removeClass("connected"); 15 | $("#connection-status").text("Counting Service is Unreachable"); 16 | } 17 | 18 | socket.on("disconnect", disconnected); 19 | socket.on("connect_error", disconnected); 20 | socket.on("connect_timeout", disconnected); 21 | socket.on("error", disconnected); 22 | socket.on("reconnect_error", disconnected); 23 | socket.on("reconnect_failed", disconnected); 24 | socket.on("reconnect_attempt", disconnected); 25 | socket.on("reconnecting", disconnected); 26 | 27 | // Listen for messages 28 | socket.on("message", function(message) { 29 | function showCount(record) { 30 | var count = message.count, 31 | formattedCount = (new Number(count)).toLocaleString() 32 | 33 | $("#count").text(formattedCount) 34 | $("#hostname").text(message.hostname) 35 | } 36 | 37 | if (message.count < 0) { 38 | // Negative count means the backend counting service cannot be discovered 39 | disconnectedFromBackendService() 40 | } else { 41 | didConnect() 42 | } 43 | showCount(message); 44 | }); 45 | 46 | function didConnect() { 47 | $("#connection-status").addClass("connected"); 48 | $("#connection-status").text("Connected"); 49 | } 50 | 51 | socket.on("connect", function() { 52 | didConnect() 53 | 54 | // Broadcast a message 55 | function broadcastMessage() { 56 | socket.emit("send", {"message":"get count"}, function(result) { 57 | // Silent success, reload again 58 | setTimeout(broadcastMessage, 200) // In milliseconds 59 | }); 60 | } 61 | broadcastMessage(); 62 | }); 63 | -------------------------------------------------------------------------------- /services/dashboard-service/assets/dependencies/jquery-3.2.1.min.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Copyright (c) HashiCorp, Inc. 3 | * SPDX-License-Identifier: MPL-2.0 4 | */ 5 | 6 | /*! jQuery v3.2.1 | (c) JS Foundation and other contributors | jquery.org/license */ 7 | !function(a,b){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=a.document?b(a,!0):function(a){if(!a.document)throw new Error("jQuery requires a window with a document");return b(a)}:b(a)}("undefined"!=typeof window?window:this,function(a,b){"use strict";var c=[],d=a.document,e=Object.getPrototypeOf,f=c.slice,g=c.concat,h=c.push,i=c.indexOf,j={},k=j.toString,l=j.hasOwnProperty,m=l.toString,n=m.call(Object),o={};function p(a,b){b=b||d;var c=b.createElement("script");c.text=a,b.head.appendChild(c).parentNode.removeChild(c)}var q="3.2.1",r=function(a,b){return new r.fn.init(a,b)},s=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,t=/^-ms-/,u=/-([a-z])/g,v=function(a,b){return b.toUpperCase()};r.fn=r.prototype={jquery:q,constructor:r,length:0,toArray:function(){return f.call(this)},get:function(a){return null==a?f.call(this):a<0?this[a+this.length]:this[a]},pushStack:function(a){var b=r.merge(this.constructor(),a);return b.prevObject=this,b},each:function(a){return r.each(this,a)},map:function(a){return this.pushStack(r.map(this,function(b,c){return a.call(b,c,b)}))},slice:function(){return this.pushStack(f.apply(this,arguments))},first:function(){return this.eq(0)},last:function(){return this.eq(-1)},eq:function(a){var b=this.length,c=+a+(a<0?b:0);return this.pushStack(c>=0&&c0&&b-1 in a)}var x=function(a){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u="sizzle"+1*new Date,v=a.document,w=0,x=0,y=ha(),z=ha(),A=ha(),B=function(a,b){return a===b&&(l=!0),0},C={}.hasOwnProperty,D=[],E=D.pop,F=D.push,G=D.push,H=D.slice,I=function(a,b){for(var c=0,d=a.length;c+~]|"+K+")"+K+"*"),S=new RegExp("="+K+"*([^\\]'\"]*?)"+K+"*\\]","g"),T=new RegExp(N),U=new RegExp("^"+L+"$"),V={ID:new RegExp("^#("+L+")"),CLASS:new RegExp("^\\.("+L+")"),TAG:new RegExp("^("+L+"|[*])"),ATTR:new RegExp("^"+M),PSEUDO:new RegExp("^"+N),CHILD:new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\("+K+"*(even|odd|(([+-]|)(\\d*)n|)"+K+"*(?:([+-]|)"+K+"*(\\d+)|))"+K+"*\\)|)","i"),bool:new RegExp("^(?:"+J+")$","i"),needsContext:new RegExp("^"+K+"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\("+K+"*((?:-\\d)?\\d*)"+K+"*\\)|)(?=[^-]|$)","i")},W=/^(?:input|select|textarea|button)$/i,X=/^h\d$/i,Y=/^[^{]+\{\s*\[native \w/,Z=/^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,$=/[+~]/,_=new RegExp("\\\\([\\da-f]{1,6}"+K+"?|("+K+")|.)","ig"),aa=function(a,b,c){var d="0x"+b-65536;return d!==d||c?b:d<0?String.fromCharCode(d+65536):String.fromCharCode(d>>10|55296,1023&d|56320)},ba=/([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,ca=function(a,b){return b?"\0"===a?"\ufffd":a.slice(0,-1)+"\\"+a.charCodeAt(a.length-1).toString(16)+" ":"\\"+a},da=function(){m()},ea=ta(function(a){return a.disabled===!0&&("form"in a||"label"in a)},{dir:"parentNode",next:"legend"});try{G.apply(D=H.call(v.childNodes),v.childNodes),D[v.childNodes.length].nodeType}catch(fa){G={apply:D.length?function(a,b){F.apply(a,H.call(b))}:function(a,b){var c=a.length,d=0;while(a[c++]=b[d++]);a.length=c-1}}}function ga(a,b,d,e){var f,h,j,k,l,o,r,s=b&&b.ownerDocument,w=b?b.nodeType:9;if(d=d||[],"string"!=typeof a||!a||1!==w&&9!==w&&11!==w)return d;if(!e&&((b?b.ownerDocument||b:v)!==n&&m(b),b=b||n,p)){if(11!==w&&(l=Z.exec(a)))if(f=l[1]){if(9===w){if(!(j=b.getElementById(f)))return d;if(j.id===f)return d.push(j),d}else if(s&&(j=s.getElementById(f))&&t(b,j)&&j.id===f)return d.push(j),d}else{if(l[2])return G.apply(d,b.getElementsByTagName(a)),d;if((f=l[3])&&c.getElementsByClassName&&b.getElementsByClassName)return G.apply(d,b.getElementsByClassName(f)),d}if(c.qsa&&!A[a+" "]&&(!q||!q.test(a))){if(1!==w)s=b,r=a;else if("object"!==b.nodeName.toLowerCase()){(k=b.getAttribute("id"))?k=k.replace(ba,ca):b.setAttribute("id",k=u),o=g(a),h=o.length;while(h--)o[h]="#"+k+" "+sa(o[h]);r=o.join(","),s=$.test(a)&&qa(b.parentNode)||b}if(r)try{return G.apply(d,s.querySelectorAll(r)),d}catch(x){}finally{k===u&&b.removeAttribute("id")}}}return i(a.replace(P,"$1"),b,d,e)}function ha(){var a=[];function b(c,e){return a.push(c+" ")>d.cacheLength&&delete b[a.shift()],b[c+" "]=e}return b}function ia(a){return a[u]=!0,a}function ja(a){var b=n.createElement("fieldset");try{return!!a(b)}catch(c){return!1}finally{b.parentNode&&b.parentNode.removeChild(b),b=null}}function ka(a,b){var c=a.split("|"),e=c.length;while(e--)d.attrHandle[c[e]]=b}function la(a,b){var c=b&&a,d=c&&1===a.nodeType&&1===b.nodeType&&a.sourceIndex-b.sourceIndex;if(d)return d;if(c)while(c=c.nextSibling)if(c===b)return-1;return a?1:-1}function ma(a){return function(b){var c=b.nodeName.toLowerCase();return"input"===c&&b.type===a}}function na(a){return function(b){var c=b.nodeName.toLowerCase();return("input"===c||"button"===c)&&b.type===a}}function oa(a){return function(b){return"form"in b?b.parentNode&&b.disabled===!1?"label"in b?"label"in b.parentNode?b.parentNode.disabled===a:b.disabled===a:b.isDisabled===a||b.isDisabled!==!a&&ea(b)===a:b.disabled===a:"label"in b&&b.disabled===a}}function pa(a){return ia(function(b){return b=+b,ia(function(c,d){var e,f=a([],c.length,b),g=f.length;while(g--)c[e=f[g]]&&(c[e]=!(d[e]=c[e]))})})}function qa(a){return a&&"undefined"!=typeof a.getElementsByTagName&&a}c=ga.support={},f=ga.isXML=function(a){var b=a&&(a.ownerDocument||a).documentElement;return!!b&&"HTML"!==b.nodeName},m=ga.setDocument=function(a){var b,e,g=a?a.ownerDocument||a:v;return g!==n&&9===g.nodeType&&g.documentElement?(n=g,o=n.documentElement,p=!f(n),v!==n&&(e=n.defaultView)&&e.top!==e&&(e.addEventListener?e.addEventListener("unload",da,!1):e.attachEvent&&e.attachEvent("onunload",da)),c.attributes=ja(function(a){return a.className="i",!a.getAttribute("className")}),c.getElementsByTagName=ja(function(a){return a.appendChild(n.createComment("")),!a.getElementsByTagName("*").length}),c.getElementsByClassName=Y.test(n.getElementsByClassName),c.getById=ja(function(a){return o.appendChild(a).id=u,!n.getElementsByName||!n.getElementsByName(u).length}),c.getById?(d.filter.ID=function(a){var b=a.replace(_,aa);return function(a){return a.getAttribute("id")===b}},d.find.ID=function(a,b){if("undefined"!=typeof b.getElementById&&p){var c=b.getElementById(a);return c?[c]:[]}}):(d.filter.ID=function(a){var b=a.replace(_,aa);return function(a){var c="undefined"!=typeof a.getAttributeNode&&a.getAttributeNode("id");return c&&c.value===b}},d.find.ID=function(a,b){if("undefined"!=typeof b.getElementById&&p){var c,d,e,f=b.getElementById(a);if(f){if(c=f.getAttributeNode("id"),c&&c.value===a)return[f];e=b.getElementsByName(a),d=0;while(f=e[d++])if(c=f.getAttributeNode("id"),c&&c.value===a)return[f]}return[]}}),d.find.TAG=c.getElementsByTagName?function(a,b){return"undefined"!=typeof b.getElementsByTagName?b.getElementsByTagName(a):c.qsa?b.querySelectorAll(a):void 0}:function(a,b){var c,d=[],e=0,f=b.getElementsByTagName(a);if("*"===a){while(c=f[e++])1===c.nodeType&&d.push(c);return d}return f},d.find.CLASS=c.getElementsByClassName&&function(a,b){if("undefined"!=typeof b.getElementsByClassName&&p)return b.getElementsByClassName(a)},r=[],q=[],(c.qsa=Y.test(n.querySelectorAll))&&(ja(function(a){o.appendChild(a).innerHTML="",a.querySelectorAll("[msallowcapture^='']").length&&q.push("[*^$]="+K+"*(?:''|\"\")"),a.querySelectorAll("[selected]").length||q.push("\\["+K+"*(?:value|"+J+")"),a.querySelectorAll("[id~="+u+"-]").length||q.push("~="),a.querySelectorAll(":checked").length||q.push(":checked"),a.querySelectorAll("a#"+u+"+*").length||q.push(".#.+[+~]")}),ja(function(a){a.innerHTML="";var b=n.createElement("input");b.setAttribute("type","hidden"),a.appendChild(b).setAttribute("name","D"),a.querySelectorAll("[name=d]").length&&q.push("name"+K+"*[*^$|!~]?="),2!==a.querySelectorAll(":enabled").length&&q.push(":enabled",":disabled"),o.appendChild(a).disabled=!0,2!==a.querySelectorAll(":disabled").length&&q.push(":enabled",":disabled"),a.querySelectorAll("*,:x"),q.push(",.*:")})),(c.matchesSelector=Y.test(s=o.matches||o.webkitMatchesSelector||o.mozMatchesSelector||o.oMatchesSelector||o.msMatchesSelector))&&ja(function(a){c.disconnectedMatch=s.call(a,"*"),s.call(a,"[s!='']:x"),r.push("!=",N)}),q=q.length&&new RegExp(q.join("|")),r=r.length&&new RegExp(r.join("|")),b=Y.test(o.compareDocumentPosition),t=b||Y.test(o.contains)?function(a,b){var c=9===a.nodeType?a.documentElement:a,d=b&&b.parentNode;return a===d||!(!d||1!==d.nodeType||!(c.contains?c.contains(d):a.compareDocumentPosition&&16&a.compareDocumentPosition(d)))}:function(a,b){if(b)while(b=b.parentNode)if(b===a)return!0;return!1},B=b?function(a,b){if(a===b)return l=!0,0;var d=!a.compareDocumentPosition-!b.compareDocumentPosition;return d?d:(d=(a.ownerDocument||a)===(b.ownerDocument||b)?a.compareDocumentPosition(b):1,1&d||!c.sortDetached&&b.compareDocumentPosition(a)===d?a===n||a.ownerDocument===v&&t(v,a)?-1:b===n||b.ownerDocument===v&&t(v,b)?1:k?I(k,a)-I(k,b):0:4&d?-1:1)}:function(a,b){if(a===b)return l=!0,0;var c,d=0,e=a.parentNode,f=b.parentNode,g=[a],h=[b];if(!e||!f)return a===n?-1:b===n?1:e?-1:f?1:k?I(k,a)-I(k,b):0;if(e===f)return la(a,b);c=a;while(c=c.parentNode)g.unshift(c);c=b;while(c=c.parentNode)h.unshift(c);while(g[d]===h[d])d++;return d?la(g[d],h[d]):g[d]===v?-1:h[d]===v?1:0},n):n},ga.matches=function(a,b){return ga(a,null,null,b)},ga.matchesSelector=function(a,b){if((a.ownerDocument||a)!==n&&m(a),b=b.replace(S,"='$1']"),c.matchesSelector&&p&&!A[b+" "]&&(!r||!r.test(b))&&(!q||!q.test(b)))try{var d=s.call(a,b);if(d||c.disconnectedMatch||a.document&&11!==a.document.nodeType)return d}catch(e){}return ga(b,n,null,[a]).length>0},ga.contains=function(a,b){return(a.ownerDocument||a)!==n&&m(a),t(a,b)},ga.attr=function(a,b){(a.ownerDocument||a)!==n&&m(a);var e=d.attrHandle[b.toLowerCase()],f=e&&C.call(d.attrHandle,b.toLowerCase())?e(a,b,!p):void 0;return void 0!==f?f:c.attributes||!p?a.getAttribute(b):(f=a.getAttributeNode(b))&&f.specified?f.value:null},ga.escape=function(a){return(a+"").replace(ba,ca)},ga.error=function(a){throw new Error("Syntax error, unrecognized expression: "+a)},ga.uniqueSort=function(a){var b,d=[],e=0,f=0;if(l=!c.detectDuplicates,k=!c.sortStable&&a.slice(0),a.sort(B),l){while(b=a[f++])b===a[f]&&(e=d.push(f));while(e--)a.splice(d[e],1)}return k=null,a},e=ga.getText=function(a){var b,c="",d=0,f=a.nodeType;if(f){if(1===f||9===f||11===f){if("string"==typeof a.textContent)return a.textContent;for(a=a.firstChild;a;a=a.nextSibling)c+=e(a)}else if(3===f||4===f)return a.nodeValue}else while(b=a[d++])c+=e(b);return c},d=ga.selectors={cacheLength:50,createPseudo:ia,match:V,attrHandle:{},find:{},relative:{">":{dir:"parentNode",first:!0}," ":{dir:"parentNode"},"+":{dir:"previousSibling",first:!0},"~":{dir:"previousSibling"}},preFilter:{ATTR:function(a){return a[1]=a[1].replace(_,aa),a[3]=(a[3]||a[4]||a[5]||"").replace(_,aa),"~="===a[2]&&(a[3]=" "+a[3]+" "),a.slice(0,4)},CHILD:function(a){return a[1]=a[1].toLowerCase(),"nth"===a[1].slice(0,3)?(a[3]||ga.error(a[0]),a[4]=+(a[4]?a[5]+(a[6]||1):2*("even"===a[3]||"odd"===a[3])),a[5]=+(a[7]+a[8]||"odd"===a[3])):a[3]&&ga.error(a[0]),a},PSEUDO:function(a){var b,c=!a[6]&&a[2];return V.CHILD.test(a[0])?null:(a[3]?a[2]=a[4]||a[5]||"":c&&T.test(c)&&(b=g(c,!0))&&(b=c.indexOf(")",c.length-b)-c.length)&&(a[0]=a[0].slice(0,b),a[2]=c.slice(0,b)),a.slice(0,3))}},filter:{TAG:function(a){var b=a.replace(_,aa).toLowerCase();return"*"===a?function(){return!0}:function(a){return a.nodeName&&a.nodeName.toLowerCase()===b}},CLASS:function(a){var b=y[a+" "];return b||(b=new RegExp("(^|"+K+")"+a+"("+K+"|$)"))&&y(a,function(a){return b.test("string"==typeof a.className&&a.className||"undefined"!=typeof a.getAttribute&&a.getAttribute("class")||"")})},ATTR:function(a,b,c){return function(d){var e=ga.attr(d,a);return null==e?"!="===b:!b||(e+="","="===b?e===c:"!="===b?e!==c:"^="===b?c&&0===e.indexOf(c):"*="===b?c&&e.indexOf(c)>-1:"$="===b?c&&e.slice(-c.length)===c:"~="===b?(" "+e.replace(O," ")+" ").indexOf(c)>-1:"|="===b&&(e===c||e.slice(0,c.length+1)===c+"-"))}},CHILD:function(a,b,c,d,e){var f="nth"!==a.slice(0,3),g="last"!==a.slice(-4),h="of-type"===b;return 1===d&&0===e?function(a){return!!a.parentNode}:function(b,c,i){var j,k,l,m,n,o,p=f!==g?"nextSibling":"previousSibling",q=b.parentNode,r=h&&b.nodeName.toLowerCase(),s=!i&&!h,t=!1;if(q){if(f){while(p){m=b;while(m=m[p])if(h?m.nodeName.toLowerCase()===r:1===m.nodeType)return!1;o=p="only"===a&&!o&&"nextSibling"}return!0}if(o=[g?q.firstChild:q.lastChild],g&&s){m=q,l=m[u]||(m[u]={}),k=l[m.uniqueID]||(l[m.uniqueID]={}),j=k[a]||[],n=j[0]===w&&j[1],t=n&&j[2],m=n&&q.childNodes[n];while(m=++n&&m&&m[p]||(t=n=0)||o.pop())if(1===m.nodeType&&++t&&m===b){k[a]=[w,n,t];break}}else if(s&&(m=b,l=m[u]||(m[u]={}),k=l[m.uniqueID]||(l[m.uniqueID]={}),j=k[a]||[],n=j[0]===w&&j[1],t=n),t===!1)while(m=++n&&m&&m[p]||(t=n=0)||o.pop())if((h?m.nodeName.toLowerCase()===r:1===m.nodeType)&&++t&&(s&&(l=m[u]||(m[u]={}),k=l[m.uniqueID]||(l[m.uniqueID]={}),k[a]=[w,t]),m===b))break;return t-=e,t===d||t%d===0&&t/d>=0}}},PSEUDO:function(a,b){var c,e=d.pseudos[a]||d.setFilters[a.toLowerCase()]||ga.error("unsupported pseudo: "+a);return e[u]?e(b):e.length>1?(c=[a,a,"",b],d.setFilters.hasOwnProperty(a.toLowerCase())?ia(function(a,c){var d,f=e(a,b),g=f.length;while(g--)d=I(a,f[g]),a[d]=!(c[d]=f[g])}):function(a){return e(a,0,c)}):e}},pseudos:{not:ia(function(a){var b=[],c=[],d=h(a.replace(P,"$1"));return d[u]?ia(function(a,b,c,e){var f,g=d(a,null,e,[]),h=a.length;while(h--)(f=g[h])&&(a[h]=!(b[h]=f))}):function(a,e,f){return b[0]=a,d(b,null,f,c),b[0]=null,!c.pop()}}),has:ia(function(a){return function(b){return ga(a,b).length>0}}),contains:ia(function(a){return a=a.replace(_,aa),function(b){return(b.textContent||b.innerText||e(b)).indexOf(a)>-1}}),lang:ia(function(a){return U.test(a||"")||ga.error("unsupported lang: "+a),a=a.replace(_,aa).toLowerCase(),function(b){var c;do if(c=p?b.lang:b.getAttribute("xml:lang")||b.getAttribute("lang"))return c=c.toLowerCase(),c===a||0===c.indexOf(a+"-");while((b=b.parentNode)&&1===b.nodeType);return!1}}),target:function(b){var c=a.location&&a.location.hash;return c&&c.slice(1)===b.id},root:function(a){return a===o},focus:function(a){return a===n.activeElement&&(!n.hasFocus||n.hasFocus())&&!!(a.type||a.href||~a.tabIndex)},enabled:oa(!1),disabled:oa(!0),checked:function(a){var b=a.nodeName.toLowerCase();return"input"===b&&!!a.checked||"option"===b&&!!a.selected},selected:function(a){return a.parentNode&&a.parentNode.selectedIndex,a.selected===!0},empty:function(a){for(a=a.firstChild;a;a=a.nextSibling)if(a.nodeType<6)return!1;return!0},parent:function(a){return!d.pseudos.empty(a)},header:function(a){return X.test(a.nodeName)},input:function(a){return W.test(a.nodeName)},button:function(a){var b=a.nodeName.toLowerCase();return"input"===b&&"button"===a.type||"button"===b},text:function(a){var b;return"input"===a.nodeName.toLowerCase()&&"text"===a.type&&(null==(b=a.getAttribute("type"))||"text"===b.toLowerCase())},first:pa(function(){return[0]}),last:pa(function(a,b){return[b-1]}),eq:pa(function(a,b,c){return[c<0?c+b:c]}),even:pa(function(a,b){for(var c=0;c=0;)a.push(d);return a}),gt:pa(function(a,b,c){for(var d=c<0?c+b:c;++d1?function(b,c,d){var e=a.length;while(e--)if(!a[e](b,c,d))return!1;return!0}:a[0]}function va(a,b,c){for(var d=0,e=b.length;d-1&&(f[j]=!(g[j]=l))}}else r=wa(r===g?r.splice(o,r.length):r),e?e(null,g,r,i):G.apply(g,r)})}function ya(a){for(var b,c,e,f=a.length,g=d.relative[a[0].type],h=g||d.relative[" "],i=g?1:0,k=ta(function(a){return a===b},h,!0),l=ta(function(a){return I(b,a)>-1},h,!0),m=[function(a,c,d){var e=!g&&(d||c!==j)||((b=c).nodeType?k(a,c,d):l(a,c,d));return b=null,e}];i1&&ua(m),i>1&&sa(a.slice(0,i-1).concat({value:" "===a[i-2].type?"*":""})).replace(P,"$1"),c,i0,e=a.length>0,f=function(f,g,h,i,k){var l,o,q,r=0,s="0",t=f&&[],u=[],v=j,x=f||e&&d.find.TAG("*",k),y=w+=null==v?1:Math.random()||.1,z=x.length;for(k&&(j=g===n||g||k);s!==z&&null!=(l=x[s]);s++){if(e&&l){o=0,g||l.ownerDocument===n||(m(l),h=!p);while(q=a[o++])if(q(l,g||n,h)){i.push(l);break}k&&(w=y)}c&&((l=!q&&l)&&r--,f&&t.push(l))}if(r+=s,c&&s!==r){o=0;while(q=b[o++])q(t,u,g,h);if(f){if(r>0)while(s--)t[s]||u[s]||(u[s]=E.call(i));u=wa(u)}G.apply(i,u),k&&!f&&u.length>0&&r+b.length>1&&ga.uniqueSort(i)}return k&&(w=y,j=v),t};return c?ia(f):f}return h=ga.compile=function(a,b){var c,d=[],e=[],f=A[a+" "];if(!f){b||(b=g(a)),c=b.length;while(c--)f=ya(b[c]),f[u]?d.push(f):e.push(f);f=A(a,za(e,d)),f.selector=a}return f},i=ga.select=function(a,b,c,e){var f,i,j,k,l,m="function"==typeof a&&a,n=!e&&g(a=m.selector||a);if(c=c||[],1===n.length){if(i=n[0]=n[0].slice(0),i.length>2&&"ID"===(j=i[0]).type&&9===b.nodeType&&p&&d.relative[i[1].type]){if(b=(d.find.ID(j.matches[0].replace(_,aa),b)||[])[0],!b)return c;m&&(b=b.parentNode),a=a.slice(i.shift().value.length)}f=V.needsContext.test(a)?0:i.length;while(f--){if(j=i[f],d.relative[k=j.type])break;if((l=d.find[k])&&(e=l(j.matches[0].replace(_,aa),$.test(i[0].type)&&qa(b.parentNode)||b))){if(i.splice(f,1),a=e.length&&sa(i),!a)return G.apply(c,e),c;break}}}return(m||h(a,n))(e,b,!p,c,!b||$.test(a)&&qa(b.parentNode)||b),c},c.sortStable=u.split("").sort(B).join("")===u,c.detectDuplicates=!!l,m(),c.sortDetached=ja(function(a){return 1&a.compareDocumentPosition(n.createElement("fieldset"))}),ja(function(a){return a.innerHTML="","#"===a.firstChild.getAttribute("href")})||ka("type|href|height|width",function(a,b,c){if(!c)return a.getAttribute(b,"type"===b.toLowerCase()?1:2)}),c.attributes&&ja(function(a){return a.innerHTML="",a.firstChild.setAttribute("value",""),""===a.firstChild.getAttribute("value")})||ka("value",function(a,b,c){if(!c&&"input"===a.nodeName.toLowerCase())return a.defaultValue}),ja(function(a){return null==a.getAttribute("disabled")})||ka(J,function(a,b,c){var d;if(!c)return a[b]===!0?b.toLowerCase():(d=a.getAttributeNode(b))&&d.specified?d.value:null}),ga}(a);r.find=x,r.expr=x.selectors,r.expr[":"]=r.expr.pseudos,r.uniqueSort=r.unique=x.uniqueSort,r.text=x.getText,r.isXMLDoc=x.isXML,r.contains=x.contains,r.escapeSelector=x.escape;var y=function(a,b,c){var d=[],e=void 0!==c;while((a=a[b])&&9!==a.nodeType)if(1===a.nodeType){if(e&&r(a).is(c))break;d.push(a)}return d},z=function(a,b){for(var c=[];a;a=a.nextSibling)1===a.nodeType&&a!==b&&c.push(a);return c},A=r.expr.match.needsContext;function B(a,b){return a.nodeName&&a.nodeName.toLowerCase()===b.toLowerCase()}var C=/^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i,D=/^.[^:#\[\.,]*$/;function E(a,b,c){return r.isFunction(b)?r.grep(a,function(a,d){return!!b.call(a,d,a)!==c}):b.nodeType?r.grep(a,function(a){return a===b!==c}):"string"!=typeof b?r.grep(a,function(a){return i.call(b,a)>-1!==c}):D.test(b)?r.filter(b,a,c):(b=r.filter(b,a),r.grep(a,function(a){return i.call(b,a)>-1!==c&&1===a.nodeType}))}r.filter=function(a,b,c){var d=b[0];return c&&(a=":not("+a+")"),1===b.length&&1===d.nodeType?r.find.matchesSelector(d,a)?[d]:[]:r.find.matches(a,r.grep(b,function(a){return 1===a.nodeType}))},r.fn.extend({find:function(a){var b,c,d=this.length,e=this;if("string"!=typeof a)return this.pushStack(r(a).filter(function(){for(b=0;b1?r.uniqueSort(c):c},filter:function(a){return this.pushStack(E(this,a||[],!1))},not:function(a){return this.pushStack(E(this,a||[],!0))},is:function(a){return!!E(this,"string"==typeof a&&A.test(a)?r(a):a||[],!1).length}});var F,G=/^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,H=r.fn.init=function(a,b,c){var e,f;if(!a)return this;if(c=c||F,"string"==typeof a){if(e="<"===a[0]&&">"===a[a.length-1]&&a.length>=3?[null,a,null]:G.exec(a),!e||!e[1]&&b)return!b||b.jquery?(b||c).find(a):this.constructor(b).find(a);if(e[1]){if(b=b instanceof r?b[0]:b,r.merge(this,r.parseHTML(e[1],b&&b.nodeType?b.ownerDocument||b:d,!0)),C.test(e[1])&&r.isPlainObject(b))for(e in b)r.isFunction(this[e])?this[e](b[e]):this.attr(e,b[e]);return this}return f=d.getElementById(e[2]),f&&(this[0]=f,this.length=1),this}return a.nodeType?(this[0]=a,this.length=1,this):r.isFunction(a)?void 0!==c.ready?c.ready(a):a(r):r.makeArray(a,this)};H.prototype=r.fn,F=r(d);var I=/^(?:parents|prev(?:Until|All))/,J={children:!0,contents:!0,next:!0,prev:!0};r.fn.extend({has:function(a){var b=r(a,this),c=b.length;return this.filter(function(){for(var a=0;a-1:1===c.nodeType&&r.find.matchesSelector(c,a))){f.push(c);break}return this.pushStack(f.length>1?r.uniqueSort(f):f)},index:function(a){return a?"string"==typeof a?i.call(r(a),this[0]):i.call(this,a.jquery?a[0]:a):this[0]&&this[0].parentNode?this.first().prevAll().length:-1},add:function(a,b){return this.pushStack(r.uniqueSort(r.merge(this.get(),r(a,b))))},addBack:function(a){return this.add(null==a?this.prevObject:this.prevObject.filter(a))}});function K(a,b){while((a=a[b])&&1!==a.nodeType);return a}r.each({parent:function(a){var b=a.parentNode;return b&&11!==b.nodeType?b:null},parents:function(a){return y(a,"parentNode")},parentsUntil:function(a,b,c){return y(a,"parentNode",c)},next:function(a){return K(a,"nextSibling")},prev:function(a){return K(a,"previousSibling")},nextAll:function(a){return y(a,"nextSibling")},prevAll:function(a){return y(a,"previousSibling")},nextUntil:function(a,b,c){return y(a,"nextSibling",c)},prevUntil:function(a,b,c){return y(a,"previousSibling",c)},siblings:function(a){return z((a.parentNode||{}).firstChild,a)},children:function(a){return z(a.firstChild)},contents:function(a){return B(a,"iframe")?a.contentDocument:(B(a,"template")&&(a=a.content||a),r.merge([],a.childNodes))}},function(a,b){r.fn[a]=function(c,d){var e=r.map(this,b,c);return"Until"!==a.slice(-5)&&(d=c),d&&"string"==typeof d&&(e=r.filter(d,e)),this.length>1&&(J[a]||r.uniqueSort(e),I.test(a)&&e.reverse()),this.pushStack(e)}});var L=/[^\x20\t\r\n\f]+/g;function M(a){var b={};return r.each(a.match(L)||[],function(a,c){b[c]=!0}),b}r.Callbacks=function(a){a="string"==typeof a?M(a):r.extend({},a);var b,c,d,e,f=[],g=[],h=-1,i=function(){for(e=e||a.once,d=b=!0;g.length;h=-1){c=g.shift();while(++h-1)f.splice(c,1),c<=h&&h--}),this},has:function(a){return a?r.inArray(a,f)>-1:f.length>0},empty:function(){return f&&(f=[]),this},disable:function(){return e=g=[],f=c="",this},disabled:function(){return!f},lock:function(){return e=g=[],c||b||(f=c=""),this},locked:function(){return!!e},fireWith:function(a,c){return e||(c=c||[],c=[a,c.slice?c.slice():c],g.push(c),b||i()),this},fire:function(){return j.fireWith(this,arguments),this},fired:function(){return!!d}};return j};function N(a){return a}function O(a){throw a}function P(a,b,c,d){var e;try{a&&r.isFunction(e=a.promise)?e.call(a).done(b).fail(c):a&&r.isFunction(e=a.then)?e.call(a,b,c):b.apply(void 0,[a].slice(d))}catch(a){c.apply(void 0,[a])}}r.extend({Deferred:function(b){var c=[["notify","progress",r.Callbacks("memory"),r.Callbacks("memory"),2],["resolve","done",r.Callbacks("once memory"),r.Callbacks("once memory"),0,"resolved"],["reject","fail",r.Callbacks("once memory"),r.Callbacks("once memory"),1,"rejected"]],d="pending",e={state:function(){return d},always:function(){return f.done(arguments).fail(arguments),this},"catch":function(a){return e.then(null,a)},pipe:function(){var a=arguments;return r.Deferred(function(b){r.each(c,function(c,d){var e=r.isFunction(a[d[4]])&&a[d[4]];f[d[1]](function(){var a=e&&e.apply(this,arguments);a&&r.isFunction(a.promise)?a.promise().progress(b.notify).done(b.resolve).fail(b.reject):b[d[0]+"With"](this,e?[a]:arguments)})}),a=null}).promise()},then:function(b,d,e){var f=0;function g(b,c,d,e){return function(){var h=this,i=arguments,j=function(){var a,j;if(!(b=f&&(d!==O&&(h=void 0,i=[a]),c.rejectWith(h,i))}};b?k():(r.Deferred.getStackHook&&(k.stackTrace=r.Deferred.getStackHook()),a.setTimeout(k))}}return r.Deferred(function(a){c[0][3].add(g(0,a,r.isFunction(e)?e:N,a.notifyWith)),c[1][3].add(g(0,a,r.isFunction(b)?b:N)),c[2][3].add(g(0,a,r.isFunction(d)?d:O))}).promise()},promise:function(a){return null!=a?r.extend(a,e):e}},f={};return r.each(c,function(a,b){var g=b[2],h=b[5];e[b[1]]=g.add,h&&g.add(function(){d=h},c[3-a][2].disable,c[0][2].lock),g.add(b[3].fire),f[b[0]]=function(){return f[b[0]+"With"](this===f?void 0:this,arguments),this},f[b[0]+"With"]=g.fireWith}),e.promise(f),b&&b.call(f,f),f},when:function(a){var b=arguments.length,c=b,d=Array(c),e=f.call(arguments),g=r.Deferred(),h=function(a){return function(c){d[a]=this,e[a]=arguments.length>1?f.call(arguments):c,--b||g.resolveWith(d,e)}};if(b<=1&&(P(a,g.done(h(c)).resolve,g.reject,!b),"pending"===g.state()||r.isFunction(e[c]&&e[c].then)))return g.then();while(c--)P(e[c],h(c),g.reject);return g.promise()}});var Q=/^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;r.Deferred.exceptionHook=function(b,c){a.console&&a.console.warn&&b&&Q.test(b.name)&&a.console.warn("jQuery.Deferred exception: "+b.message,b.stack,c)},r.readyException=function(b){a.setTimeout(function(){throw b})};var R=r.Deferred();r.fn.ready=function(a){return R.then(a)["catch"](function(a){r.readyException(a)}),this},r.extend({isReady:!1,readyWait:1,ready:function(a){(a===!0?--r.readyWait:r.isReady)||(r.isReady=!0,a!==!0&&--r.readyWait>0||R.resolveWith(d,[r]))}}),r.ready.then=R.then;function S(){d.removeEventListener("DOMContentLoaded",S), 8 | a.removeEventListener("load",S),r.ready()}"complete"===d.readyState||"loading"!==d.readyState&&!d.documentElement.doScroll?a.setTimeout(r.ready):(d.addEventListener("DOMContentLoaded",S),a.addEventListener("load",S));var T=function(a,b,c,d,e,f,g){var h=0,i=a.length,j=null==c;if("object"===r.type(c)){e=!0;for(h in c)T(a,b,h,c[h],!0,f,g)}else if(void 0!==d&&(e=!0,r.isFunction(d)||(g=!0),j&&(g?(b.call(a,d),b=null):(j=b,b=function(a,b,c){return j.call(r(a),c)})),b))for(;h1,null,!0)},removeData:function(a){return this.each(function(){X.remove(this,a)})}}),r.extend({queue:function(a,b,c){var d;if(a)return b=(b||"fx")+"queue",d=W.get(a,b),c&&(!d||Array.isArray(c)?d=W.access(a,b,r.makeArray(c)):d.push(c)),d||[]},dequeue:function(a,b){b=b||"fx";var c=r.queue(a,b),d=c.length,e=c.shift(),f=r._queueHooks(a,b),g=function(){r.dequeue(a,b)};"inprogress"===e&&(e=c.shift(),d--),e&&("fx"===b&&c.unshift("inprogress"),delete f.stop,e.call(a,g,f)),!d&&f&&f.empty.fire()},_queueHooks:function(a,b){var c=b+"queueHooks";return W.get(a,c)||W.access(a,c,{empty:r.Callbacks("once memory").add(function(){W.remove(a,[b+"queue",c])})})}}),r.fn.extend({queue:function(a,b){var c=2;return"string"!=typeof a&&(b=a,a="fx",c--),arguments.length\x20\t\r\n\f]+)/i,la=/^$|\/(?:java|ecma)script/i,ma={option:[1,""],thead:[1,"","
"],col:[2,"","
"],tr:[2,"","
"],td:[3,"","
"],_default:[0,"",""]};ma.optgroup=ma.option,ma.tbody=ma.tfoot=ma.colgroup=ma.caption=ma.thead,ma.th=ma.td;function na(a,b){var c;return c="undefined"!=typeof a.getElementsByTagName?a.getElementsByTagName(b||"*"):"undefined"!=typeof a.querySelectorAll?a.querySelectorAll(b||"*"):[],void 0===b||b&&B(a,b)?r.merge([a],c):c}function oa(a,b){for(var c=0,d=a.length;c-1)e&&e.push(f);else if(j=r.contains(f.ownerDocument,f),g=na(l.appendChild(f),"script"),j&&oa(g),c){k=0;while(f=g[k++])la.test(f.type||"")&&c.push(f)}return l}!function(){var a=d.createDocumentFragment(),b=a.appendChild(d.createElement("div")),c=d.createElement("input");c.setAttribute("type","radio"),c.setAttribute("checked","checked"),c.setAttribute("name","t"),b.appendChild(c),o.checkClone=b.cloneNode(!0).cloneNode(!0).lastChild.checked,b.innerHTML="",o.noCloneChecked=!!b.cloneNode(!0).lastChild.defaultValue}();var ra=d.documentElement,sa=/^key/,ta=/^(?:mouse|pointer|contextmenu|drag|drop)|click/,ua=/^([^.]*)(?:\.(.+)|)/;function va(){return!0}function wa(){return!1}function xa(){try{return d.activeElement}catch(a){}}function ya(a,b,c,d,e,f){var g,h;if("object"==typeof b){"string"!=typeof c&&(d=d||c,c=void 0);for(h in b)ya(a,h,c,d,b[h],f);return a}if(null==d&&null==e?(e=c,d=c=void 0):null==e&&("string"==typeof c?(e=d,d=void 0):(e=d,d=c,c=void 0)),e===!1)e=wa;else if(!e)return a;return 1===f&&(g=e,e=function(a){return r().off(a),g.apply(this,arguments)},e.guid=g.guid||(g.guid=r.guid++)),a.each(function(){r.event.add(this,b,e,d,c)})}r.event={global:{},add:function(a,b,c,d,e){var f,g,h,i,j,k,l,m,n,o,p,q=W.get(a);if(q){c.handler&&(f=c,c=f.handler,e=f.selector),e&&r.find.matchesSelector(ra,e),c.guid||(c.guid=r.guid++),(i=q.events)||(i=q.events={}),(g=q.handle)||(g=q.handle=function(b){return"undefined"!=typeof r&&r.event.triggered!==b.type?r.event.dispatch.apply(a,arguments):void 0}),b=(b||"").match(L)||[""],j=b.length;while(j--)h=ua.exec(b[j])||[],n=p=h[1],o=(h[2]||"").split(".").sort(),n&&(l=r.event.special[n]||{},n=(e?l.delegateType:l.bindType)||n,l=r.event.special[n]||{},k=r.extend({type:n,origType:p,data:d,handler:c,guid:c.guid,selector:e,needsContext:e&&r.expr.match.needsContext.test(e),namespace:o.join(".")},f),(m=i[n])||(m=i[n]=[],m.delegateCount=0,l.setup&&l.setup.call(a,d,o,g)!==!1||a.addEventListener&&a.addEventListener(n,g)),l.add&&(l.add.call(a,k),k.handler.guid||(k.handler.guid=c.guid)),e?m.splice(m.delegateCount++,0,k):m.push(k),r.event.global[n]=!0)}},remove:function(a,b,c,d,e){var f,g,h,i,j,k,l,m,n,o,p,q=W.hasData(a)&&W.get(a);if(q&&(i=q.events)){b=(b||"").match(L)||[""],j=b.length;while(j--)if(h=ua.exec(b[j])||[],n=p=h[1],o=(h[2]||"").split(".").sort(),n){l=r.event.special[n]||{},n=(d?l.delegateType:l.bindType)||n,m=i[n]||[],h=h[2]&&new RegExp("(^|\\.)"+o.join("\\.(?:.*\\.|)")+"(\\.|$)"),g=f=m.length;while(f--)k=m[f],!e&&p!==k.origType||c&&c.guid!==k.guid||h&&!h.test(k.namespace)||d&&d!==k.selector&&("**"!==d||!k.selector)||(m.splice(f,1),k.selector&&m.delegateCount--,l.remove&&l.remove.call(a,k));g&&!m.length&&(l.teardown&&l.teardown.call(a,o,q.handle)!==!1||r.removeEvent(a,n,q.handle),delete i[n])}else for(n in i)r.event.remove(a,n+b[j],c,d,!0);r.isEmptyObject(i)&&W.remove(a,"handle events")}},dispatch:function(a){var b=r.event.fix(a),c,d,e,f,g,h,i=new Array(arguments.length),j=(W.get(this,"events")||{})[b.type]||[],k=r.event.special[b.type]||{};for(i[0]=b,c=1;c=1))for(;j!==this;j=j.parentNode||this)if(1===j.nodeType&&("click"!==a.type||j.disabled!==!0)){for(f=[],g={},c=0;c-1:r.find(e,this,null,[j]).length),g[e]&&f.push(d);f.length&&h.push({elem:j,handlers:f})}return j=this,i\x20\t\r\n\f]*)[^>]*)\/>/gi,Aa=/\s*$/g;function Ea(a,b){return B(a,"table")&&B(11!==b.nodeType?b:b.firstChild,"tr")?r(">tbody",a)[0]||a:a}function Fa(a){return a.type=(null!==a.getAttribute("type"))+"/"+a.type,a}function Ga(a){var b=Ca.exec(a.type);return b?a.type=b[1]:a.removeAttribute("type"),a}function Ha(a,b){var c,d,e,f,g,h,i,j;if(1===b.nodeType){if(W.hasData(a)&&(f=W.access(a),g=W.set(b,f),j=f.events)){delete g.handle,g.events={};for(e in j)for(c=0,d=j[e].length;c1&&"string"==typeof q&&!o.checkClone&&Ba.test(q))return a.each(function(e){var f=a.eq(e);s&&(b[0]=q.call(this,e,f.html())),Ja(f,b,c,d)});if(m&&(e=qa(b,a[0].ownerDocument,!1,a,d),f=e.firstChild,1===e.childNodes.length&&(e=f),f||d)){for(h=r.map(na(e,"script"),Fa),i=h.length;l")},clone:function(a,b,c){var d,e,f,g,h=a.cloneNode(!0),i=r.contains(a.ownerDocument,a);if(!(o.noCloneChecked||1!==a.nodeType&&11!==a.nodeType||r.isXMLDoc(a)))for(g=na(h),f=na(a),d=0,e=f.length;d0&&oa(g,!i&&na(a,"script")),h},cleanData:function(a){for(var b,c,d,e=r.event.special,f=0;void 0!==(c=a[f]);f++)if(U(c)){if(b=c[W.expando]){if(b.events)for(d in b.events)e[d]?r.event.remove(c,d):r.removeEvent(c,d,b.handle);c[W.expando]=void 0}c[X.expando]&&(c[X.expando]=void 0)}}}),r.fn.extend({detach:function(a){return Ka(this,a,!0)},remove:function(a){return Ka(this,a)},text:function(a){return T(this,function(a){return void 0===a?r.text(this):this.empty().each(function(){1!==this.nodeType&&11!==this.nodeType&&9!==this.nodeType||(this.textContent=a)})},null,a,arguments.length)},append:function(){return Ja(this,arguments,function(a){if(1===this.nodeType||11===this.nodeType||9===this.nodeType){var b=Ea(this,a);b.appendChild(a)}})},prepend:function(){return Ja(this,arguments,function(a){if(1===this.nodeType||11===this.nodeType||9===this.nodeType){var b=Ea(this,a);b.insertBefore(a,b.firstChild)}})},before:function(){return Ja(this,arguments,function(a){this.parentNode&&this.parentNode.insertBefore(a,this)})},after:function(){return Ja(this,arguments,function(a){this.parentNode&&this.parentNode.insertBefore(a,this.nextSibling)})},empty:function(){for(var a,b=0;null!=(a=this[b]);b++)1===a.nodeType&&(r.cleanData(na(a,!1)),a.textContent="");return this},clone:function(a,b){return a=null!=a&&a,b=null==b?a:b,this.map(function(){return r.clone(this,a,b)})},html:function(a){return T(this,function(a){var b=this[0]||{},c=0,d=this.length;if(void 0===a&&1===b.nodeType)return b.innerHTML;if("string"==typeof a&&!Aa.test(a)&&!ma[(ka.exec(a)||["",""])[1].toLowerCase()]){a=r.htmlPrefilter(a);try{for(;c1)}});function _a(a,b,c,d,e){return new _a.prototype.init(a,b,c,d,e)}r.Tween=_a,_a.prototype={constructor:_a,init:function(a,b,c,d,e,f){this.elem=a,this.prop=c,this.easing=e||r.easing._default,this.options=b,this.start=this.now=this.cur(),this.end=d,this.unit=f||(r.cssNumber[c]?"":"px")},cur:function(){var a=_a.propHooks[this.prop];return a&&a.get?a.get(this):_a.propHooks._default.get(this)},run:function(a){var b,c=_a.propHooks[this.prop];return this.options.duration?this.pos=b=r.easing[this.easing](a,this.options.duration*a,0,1,this.options.duration):this.pos=b=a,this.now=(this.end-this.start)*b+this.start,this.options.step&&this.options.step.call(this.elem,this.now,this),c&&c.set?c.set(this):_a.propHooks._default.set(this),this}},_a.prototype.init.prototype=_a.prototype,_a.propHooks={_default:{get:function(a){var b;return 1!==a.elem.nodeType||null!=a.elem[a.prop]&&null==a.elem.style[a.prop]?a.elem[a.prop]:(b=r.css(a.elem,a.prop,""),b&&"auto"!==b?b:0)},set:function(a){r.fx.step[a.prop]?r.fx.step[a.prop](a):1!==a.elem.nodeType||null==a.elem.style[r.cssProps[a.prop]]&&!r.cssHooks[a.prop]?a.elem[a.prop]=a.now:r.style(a.elem,a.prop,a.now+a.unit)}}},_a.propHooks.scrollTop=_a.propHooks.scrollLeft={set:function(a){a.elem.nodeType&&a.elem.parentNode&&(a.elem[a.prop]=a.now)}},r.easing={linear:function(a){return a},swing:function(a){return.5-Math.cos(a*Math.PI)/2},_default:"swing"},r.fx=_a.prototype.init,r.fx.step={};var ab,bb,cb=/^(?:toggle|show|hide)$/,db=/queueHooks$/;function eb(){bb&&(d.hidden===!1&&a.requestAnimationFrame?a.requestAnimationFrame(eb):a.setTimeout(eb,r.fx.interval),r.fx.tick())}function fb(){return a.setTimeout(function(){ab=void 0}),ab=r.now()}function gb(a,b){var c,d=0,e={height:a};for(b=b?1:0;d<4;d+=2-b)c=ca[d],e["margin"+c]=e["padding"+c]=a;return b&&(e.opacity=e.width=a),e}function hb(a,b,c){for(var d,e=(kb.tweeners[b]||[]).concat(kb.tweeners["*"]),f=0,g=e.length;f1)},removeAttr:function(a){return this.each(function(){r.removeAttr(this,a)})}}),r.extend({attr:function(a,b,c){var d,e,f=a.nodeType;if(3!==f&&8!==f&&2!==f)return"undefined"==typeof a.getAttribute?r.prop(a,b,c):(1===f&&r.isXMLDoc(a)||(e=r.attrHooks[b.toLowerCase()]||(r.expr.match.bool.test(b)?lb:void 0)),void 0!==c?null===c?void r.removeAttr(a,b):e&&"set"in e&&void 0!==(d=e.set(a,c,b))?d:(a.setAttribute(b,c+""),c):e&&"get"in e&&null!==(d=e.get(a,b))?d:(d=r.find.attr(a,b), 9 | null==d?void 0:d))},attrHooks:{type:{set:function(a,b){if(!o.radioValue&&"radio"===b&&B(a,"input")){var c=a.value;return a.setAttribute("type",b),c&&(a.value=c),b}}}},removeAttr:function(a,b){var c,d=0,e=b&&b.match(L);if(e&&1===a.nodeType)while(c=e[d++])a.removeAttribute(c)}}),lb={set:function(a,b,c){return b===!1?r.removeAttr(a,c):a.setAttribute(c,c),c}},r.each(r.expr.match.bool.source.match(/\w+/g),function(a,b){var c=mb[b]||r.find.attr;mb[b]=function(a,b,d){var e,f,g=b.toLowerCase();return d||(f=mb[g],mb[g]=e,e=null!=c(a,b,d)?g:null,mb[g]=f),e}});var nb=/^(?:input|select|textarea|button)$/i,ob=/^(?:a|area)$/i;r.fn.extend({prop:function(a,b){return T(this,r.prop,a,b,arguments.length>1)},removeProp:function(a){return this.each(function(){delete this[r.propFix[a]||a]})}}),r.extend({prop:function(a,b,c){var d,e,f=a.nodeType;if(3!==f&&8!==f&&2!==f)return 1===f&&r.isXMLDoc(a)||(b=r.propFix[b]||b,e=r.propHooks[b]),void 0!==c?e&&"set"in e&&void 0!==(d=e.set(a,c,b))?d:a[b]=c:e&&"get"in e&&null!==(d=e.get(a,b))?d:a[b]},propHooks:{tabIndex:{get:function(a){var b=r.find.attr(a,"tabindex");return b?parseInt(b,10):nb.test(a.nodeName)||ob.test(a.nodeName)&&a.href?0:-1}}},propFix:{"for":"htmlFor","class":"className"}}),o.optSelected||(r.propHooks.selected={get:function(a){var b=a.parentNode;return b&&b.parentNode&&b.parentNode.selectedIndex,null},set:function(a){var b=a.parentNode;b&&(b.selectedIndex,b.parentNode&&b.parentNode.selectedIndex)}}),r.each(["tabIndex","readOnly","maxLength","cellSpacing","cellPadding","rowSpan","colSpan","useMap","frameBorder","contentEditable"],function(){r.propFix[this.toLowerCase()]=this});function pb(a){var b=a.match(L)||[];return b.join(" ")}function qb(a){return a.getAttribute&&a.getAttribute("class")||""}r.fn.extend({addClass:function(a){var b,c,d,e,f,g,h,i=0;if(r.isFunction(a))return this.each(function(b){r(this).addClass(a.call(this,b,qb(this)))});if("string"==typeof a&&a){b=a.match(L)||[];while(c=this[i++])if(e=qb(c),d=1===c.nodeType&&" "+pb(e)+" "){g=0;while(f=b[g++])d.indexOf(" "+f+" ")<0&&(d+=f+" ");h=pb(d),e!==h&&c.setAttribute("class",h)}}return this},removeClass:function(a){var b,c,d,e,f,g,h,i=0;if(r.isFunction(a))return this.each(function(b){r(this).removeClass(a.call(this,b,qb(this)))});if(!arguments.length)return this.attr("class","");if("string"==typeof a&&a){b=a.match(L)||[];while(c=this[i++])if(e=qb(c),d=1===c.nodeType&&" "+pb(e)+" "){g=0;while(f=b[g++])while(d.indexOf(" "+f+" ")>-1)d=d.replace(" "+f+" "," ");h=pb(d),e!==h&&c.setAttribute("class",h)}}return this},toggleClass:function(a,b){var c=typeof a;return"boolean"==typeof b&&"string"===c?b?this.addClass(a):this.removeClass(a):r.isFunction(a)?this.each(function(c){r(this).toggleClass(a.call(this,c,qb(this),b),b)}):this.each(function(){var b,d,e,f;if("string"===c){d=0,e=r(this),f=a.match(L)||[];while(b=f[d++])e.hasClass(b)?e.removeClass(b):e.addClass(b)}else void 0!==a&&"boolean"!==c||(b=qb(this),b&&W.set(this,"__className__",b),this.setAttribute&&this.setAttribute("class",b||a===!1?"":W.get(this,"__className__")||""))})},hasClass:function(a){var b,c,d=0;b=" "+a+" ";while(c=this[d++])if(1===c.nodeType&&(" "+pb(qb(c))+" ").indexOf(b)>-1)return!0;return!1}});var rb=/\r/g;r.fn.extend({val:function(a){var b,c,d,e=this[0];{if(arguments.length)return d=r.isFunction(a),this.each(function(c){var e;1===this.nodeType&&(e=d?a.call(this,c,r(this).val()):a,null==e?e="":"number"==typeof e?e+="":Array.isArray(e)&&(e=r.map(e,function(a){return null==a?"":a+""})),b=r.valHooks[this.type]||r.valHooks[this.nodeName.toLowerCase()],b&&"set"in b&&void 0!==b.set(this,e,"value")||(this.value=e))});if(e)return b=r.valHooks[e.type]||r.valHooks[e.nodeName.toLowerCase()],b&&"get"in b&&void 0!==(c=b.get(e,"value"))?c:(c=e.value,"string"==typeof c?c.replace(rb,""):null==c?"":c)}}}),r.extend({valHooks:{option:{get:function(a){var b=r.find.attr(a,"value");return null!=b?b:pb(r.text(a))}},select:{get:function(a){var b,c,d,e=a.options,f=a.selectedIndex,g="select-one"===a.type,h=g?null:[],i=g?f+1:e.length;for(d=f<0?i:g?f:0;d-1)&&(c=!0);return c||(a.selectedIndex=-1),f}}}}),r.each(["radio","checkbox"],function(){r.valHooks[this]={set:function(a,b){if(Array.isArray(b))return a.checked=r.inArray(r(a).val(),b)>-1}},o.checkOn||(r.valHooks[this].get=function(a){return null===a.getAttribute("value")?"on":a.value})});var sb=/^(?:focusinfocus|focusoutblur)$/;r.extend(r.event,{trigger:function(b,c,e,f){var g,h,i,j,k,m,n,o=[e||d],p=l.call(b,"type")?b.type:b,q=l.call(b,"namespace")?b.namespace.split("."):[];if(h=i=e=e||d,3!==e.nodeType&&8!==e.nodeType&&!sb.test(p+r.event.triggered)&&(p.indexOf(".")>-1&&(q=p.split("."),p=q.shift(),q.sort()),k=p.indexOf(":")<0&&"on"+p,b=b[r.expando]?b:new r.Event(p,"object"==typeof b&&b),b.isTrigger=f?2:3,b.namespace=q.join("."),b.rnamespace=b.namespace?new RegExp("(^|\\.)"+q.join("\\.(?:.*\\.|)")+"(\\.|$)"):null,b.result=void 0,b.target||(b.target=e),c=null==c?[b]:r.makeArray(c,[b]),n=r.event.special[p]||{},f||!n.trigger||n.trigger.apply(e,c)!==!1)){if(!f&&!n.noBubble&&!r.isWindow(e)){for(j=n.delegateType||p,sb.test(j+p)||(h=h.parentNode);h;h=h.parentNode)o.push(h),i=h;i===(e.ownerDocument||d)&&o.push(i.defaultView||i.parentWindow||a)}g=0;while((h=o[g++])&&!b.isPropagationStopped())b.type=g>1?j:n.bindType||p,m=(W.get(h,"events")||{})[b.type]&&W.get(h,"handle"),m&&m.apply(h,c),m=k&&h[k],m&&m.apply&&U(h)&&(b.result=m.apply(h,c),b.result===!1&&b.preventDefault());return b.type=p,f||b.isDefaultPrevented()||n._default&&n._default.apply(o.pop(),c)!==!1||!U(e)||k&&r.isFunction(e[p])&&!r.isWindow(e)&&(i=e[k],i&&(e[k]=null),r.event.triggered=p,e[p](),r.event.triggered=void 0,i&&(e[k]=i)),b.result}},simulate:function(a,b,c){var d=r.extend(new r.Event,c,{type:a,isSimulated:!0});r.event.trigger(d,null,b)}}),r.fn.extend({trigger:function(a,b){return this.each(function(){r.event.trigger(a,b,this)})},triggerHandler:function(a,b){var c=this[0];if(c)return r.event.trigger(a,b,c,!0)}}),r.each("blur focus focusin focusout resize scroll click dblclick mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave change select submit keydown keypress keyup contextmenu".split(" "),function(a,b){r.fn[b]=function(a,c){return arguments.length>0?this.on(b,null,a,c):this.trigger(b)}}),r.fn.extend({hover:function(a,b){return this.mouseenter(a).mouseleave(b||a)}}),o.focusin="onfocusin"in a,o.focusin||r.each({focus:"focusin",blur:"focusout"},function(a,b){var c=function(a){r.event.simulate(b,a.target,r.event.fix(a))};r.event.special[b]={setup:function(){var d=this.ownerDocument||this,e=W.access(d,b);e||d.addEventListener(a,c,!0),W.access(d,b,(e||0)+1)},teardown:function(){var d=this.ownerDocument||this,e=W.access(d,b)-1;e?W.access(d,b,e):(d.removeEventListener(a,c,!0),W.remove(d,b))}}});var tb=a.location,ub=r.now(),vb=/\?/;r.parseXML=function(b){var c;if(!b||"string"!=typeof b)return null;try{c=(new a.DOMParser).parseFromString(b,"text/xml")}catch(d){c=void 0}return c&&!c.getElementsByTagName("parsererror").length||r.error("Invalid XML: "+b),c};var wb=/\[\]$/,xb=/\r?\n/g,yb=/^(?:submit|button|image|reset|file)$/i,zb=/^(?:input|select|textarea|keygen)/i;function Ab(a,b,c,d){var e;if(Array.isArray(b))r.each(b,function(b,e){c||wb.test(a)?d(a,e):Ab(a+"["+("object"==typeof e&&null!=e?b:"")+"]",e,c,d)});else if(c||"object"!==r.type(b))d(a,b);else for(e in b)Ab(a+"["+e+"]",b[e],c,d)}r.param=function(a,b){var c,d=[],e=function(a,b){var c=r.isFunction(b)?b():b;d[d.length]=encodeURIComponent(a)+"="+encodeURIComponent(null==c?"":c)};if(Array.isArray(a)||a.jquery&&!r.isPlainObject(a))r.each(a,function(){e(this.name,this.value)});else for(c in a)Ab(c,a[c],b,e);return d.join("&")},r.fn.extend({serialize:function(){return r.param(this.serializeArray())},serializeArray:function(){return this.map(function(){var a=r.prop(this,"elements");return a?r.makeArray(a):this}).filter(function(){var a=this.type;return this.name&&!r(this).is(":disabled")&&zb.test(this.nodeName)&&!yb.test(a)&&(this.checked||!ja.test(a))}).map(function(a,b){var c=r(this).val();return null==c?null:Array.isArray(c)?r.map(c,function(a){return{name:b.name,value:a.replace(xb,"\r\n")}}):{name:b.name,value:c.replace(xb,"\r\n")}}).get()}});var Bb=/%20/g,Cb=/#.*$/,Db=/([?&])_=[^&]*/,Eb=/^(.*?):[ \t]*([^\r\n]*)$/gm,Fb=/^(?:about|app|app-storage|.+-extension|file|res|widget):$/,Gb=/^(?:GET|HEAD)$/,Hb=/^\/\//,Ib={},Jb={},Kb="*/".concat("*"),Lb=d.createElement("a");Lb.href=tb.href;function Mb(a){return function(b,c){"string"!=typeof b&&(c=b,b="*");var d,e=0,f=b.toLowerCase().match(L)||[];if(r.isFunction(c))while(d=f[e++])"+"===d[0]?(d=d.slice(1)||"*",(a[d]=a[d]||[]).unshift(c)):(a[d]=a[d]||[]).push(c)}}function Nb(a,b,c,d){var e={},f=a===Jb;function g(h){var i;return e[h]=!0,r.each(a[h]||[],function(a,h){var j=h(b,c,d);return"string"!=typeof j||f||e[j]?f?!(i=j):void 0:(b.dataTypes.unshift(j),g(j),!1)}),i}return g(b.dataTypes[0])||!e["*"]&&g("*")}function Ob(a,b){var c,d,e=r.ajaxSettings.flatOptions||{};for(c in b)void 0!==b[c]&&((e[c]?a:d||(d={}))[c]=b[c]);return d&&r.extend(!0,a,d),a}function Pb(a,b,c){var d,e,f,g,h=a.contents,i=a.dataTypes;while("*"===i[0])i.shift(),void 0===d&&(d=a.mimeType||b.getResponseHeader("Content-Type"));if(d)for(e in h)if(h[e]&&h[e].test(d)){i.unshift(e);break}if(i[0]in c)f=i[0];else{for(e in c){if(!i[0]||a.converters[e+" "+i[0]]){f=e;break}g||(g=e)}f=f||g}if(f)return f!==i[0]&&i.unshift(f),c[f]}function Qb(a,b,c,d){var e,f,g,h,i,j={},k=a.dataTypes.slice();if(k[1])for(g in a.converters)j[g.toLowerCase()]=a.converters[g];f=k.shift();while(f)if(a.responseFields[f]&&(c[a.responseFields[f]]=b),!i&&d&&a.dataFilter&&(b=a.dataFilter(b,a.dataType)),i=f,f=k.shift())if("*"===f)f=i;else if("*"!==i&&i!==f){if(g=j[i+" "+f]||j["* "+f],!g)for(e in j)if(h=e.split(" "),h[1]===f&&(g=j[i+" "+h[0]]||j["* "+h[0]])){g===!0?g=j[e]:j[e]!==!0&&(f=h[0],k.unshift(h[1]));break}if(g!==!0)if(g&&a["throws"])b=g(b);else try{b=g(b)}catch(l){return{state:"parsererror",error:g?l:"No conversion from "+i+" to "+f}}}return{state:"success",data:b}}r.extend({active:0,lastModified:{},etag:{},ajaxSettings:{url:tb.href,type:"GET",isLocal:Fb.test(tb.protocol),global:!0,processData:!0,async:!0,contentType:"application/x-www-form-urlencoded; charset=UTF-8",accepts:{"*":Kb,text:"text/plain",html:"text/html",xml:"application/xml, text/xml",json:"application/json, text/javascript"},contents:{xml:/\bxml\b/,html:/\bhtml/,json:/\bjson\b/},responseFields:{xml:"responseXML",text:"responseText",json:"responseJSON"},converters:{"* text":String,"text html":!0,"text json":JSON.parse,"text xml":r.parseXML},flatOptions:{url:!0,context:!0}},ajaxSetup:function(a,b){return b?Ob(Ob(a,r.ajaxSettings),b):Ob(r.ajaxSettings,a)},ajaxPrefilter:Mb(Ib),ajaxTransport:Mb(Jb),ajax:function(b,c){"object"==typeof b&&(c=b,b=void 0),c=c||{};var e,f,g,h,i,j,k,l,m,n,o=r.ajaxSetup({},c),p=o.context||o,q=o.context&&(p.nodeType||p.jquery)?r(p):r.event,s=r.Deferred(),t=r.Callbacks("once memory"),u=o.statusCode||{},v={},w={},x="canceled",y={readyState:0,getResponseHeader:function(a){var b;if(k){if(!h){h={};while(b=Eb.exec(g))h[b[1].toLowerCase()]=b[2]}b=h[a.toLowerCase()]}return null==b?null:b},getAllResponseHeaders:function(){return k?g:null},setRequestHeader:function(a,b){return null==k&&(a=w[a.toLowerCase()]=w[a.toLowerCase()]||a,v[a]=b),this},overrideMimeType:function(a){return null==k&&(o.mimeType=a),this},statusCode:function(a){var b;if(a)if(k)y.always(a[y.status]);else for(b in a)u[b]=[u[b],a[b]];return this},abort:function(a){var b=a||x;return e&&e.abort(b),A(0,b),this}};if(s.promise(y),o.url=((b||o.url||tb.href)+"").replace(Hb,tb.protocol+"//"),o.type=c.method||c.type||o.method||o.type,o.dataTypes=(o.dataType||"*").toLowerCase().match(L)||[""],null==o.crossDomain){j=d.createElement("a");try{j.href=o.url,j.href=j.href,o.crossDomain=Lb.protocol+"//"+Lb.host!=j.protocol+"//"+j.host}catch(z){o.crossDomain=!0}}if(o.data&&o.processData&&"string"!=typeof o.data&&(o.data=r.param(o.data,o.traditional)),Nb(Ib,o,c,y),k)return y;l=r.event&&o.global,l&&0===r.active++&&r.event.trigger("ajaxStart"),o.type=o.type.toUpperCase(),o.hasContent=!Gb.test(o.type),f=o.url.replace(Cb,""),o.hasContent?o.data&&o.processData&&0===(o.contentType||"").indexOf("application/x-www-form-urlencoded")&&(o.data=o.data.replace(Bb,"+")):(n=o.url.slice(f.length),o.data&&(f+=(vb.test(f)?"&":"?")+o.data,delete o.data),o.cache===!1&&(f=f.replace(Db,"$1"),n=(vb.test(f)?"&":"?")+"_="+ub++ +n),o.url=f+n),o.ifModified&&(r.lastModified[f]&&y.setRequestHeader("If-Modified-Since",r.lastModified[f]),r.etag[f]&&y.setRequestHeader("If-None-Match",r.etag[f])),(o.data&&o.hasContent&&o.contentType!==!1||c.contentType)&&y.setRequestHeader("Content-Type",o.contentType),y.setRequestHeader("Accept",o.dataTypes[0]&&o.accepts[o.dataTypes[0]]?o.accepts[o.dataTypes[0]]+("*"!==o.dataTypes[0]?", "+Kb+"; q=0.01":""):o.accepts["*"]);for(m in o.headers)y.setRequestHeader(m,o.headers[m]);if(o.beforeSend&&(o.beforeSend.call(p,y,o)===!1||k))return y.abort();if(x="abort",t.add(o.complete),y.done(o.success),y.fail(o.error),e=Nb(Jb,o,c,y)){if(y.readyState=1,l&&q.trigger("ajaxSend",[y,o]),k)return y;o.async&&o.timeout>0&&(i=a.setTimeout(function(){y.abort("timeout")},o.timeout));try{k=!1,e.send(v,A)}catch(z){if(k)throw z;A(-1,z)}}else A(-1,"No Transport");function A(b,c,d,h){var j,m,n,v,w,x=c;k||(k=!0,i&&a.clearTimeout(i),e=void 0,g=h||"",y.readyState=b>0?4:0,j=b>=200&&b<300||304===b,d&&(v=Pb(o,y,d)),v=Qb(o,v,y,j),j?(o.ifModified&&(w=y.getResponseHeader("Last-Modified"),w&&(r.lastModified[f]=w),w=y.getResponseHeader("etag"),w&&(r.etag[f]=w)),204===b||"HEAD"===o.type?x="nocontent":304===b?x="notmodified":(x=v.state,m=v.data,n=v.error,j=!n)):(n=x,!b&&x||(x="error",b<0&&(b=0))),y.status=b,y.statusText=(c||x)+"",j?s.resolveWith(p,[m,x,y]):s.rejectWith(p,[y,x,n]),y.statusCode(u),u=void 0,l&&q.trigger(j?"ajaxSuccess":"ajaxError",[y,o,j?m:n]),t.fireWith(p,[y,x]),l&&(q.trigger("ajaxComplete",[y,o]),--r.active||r.event.trigger("ajaxStop")))}return y},getJSON:function(a,b,c){return r.get(a,b,c,"json")},getScript:function(a,b){return r.get(a,void 0,b,"script")}}),r.each(["get","post"],function(a,b){r[b]=function(a,c,d,e){return r.isFunction(c)&&(e=e||d,d=c,c=void 0),r.ajax(r.extend({url:a,type:b,dataType:e,data:c,success:d},r.isPlainObject(a)&&a))}}),r._evalUrl=function(a){return r.ajax({url:a,type:"GET",dataType:"script",cache:!0,async:!1,global:!1,"throws":!0})},r.fn.extend({wrapAll:function(a){var b;return this[0]&&(r.isFunction(a)&&(a=a.call(this[0])),b=r(a,this[0].ownerDocument).eq(0).clone(!0),this[0].parentNode&&b.insertBefore(this[0]),b.map(function(){var a=this;while(a.firstElementChild)a=a.firstElementChild;return a}).append(this)),this},wrapInner:function(a){return r.isFunction(a)?this.each(function(b){r(this).wrapInner(a.call(this,b))}):this.each(function(){var b=r(this),c=b.contents();c.length?c.wrapAll(a):b.append(a)})},wrap:function(a){var b=r.isFunction(a);return this.each(function(c){r(this).wrapAll(b?a.call(this,c):a)})},unwrap:function(a){return this.parent(a).not("body").each(function(){r(this).replaceWith(this.childNodes)}),this}}),r.expr.pseudos.hidden=function(a){return!r.expr.pseudos.visible(a)},r.expr.pseudos.visible=function(a){return!!(a.offsetWidth||a.offsetHeight||a.getClientRects().length)},r.ajaxSettings.xhr=function(){try{return new a.XMLHttpRequest}catch(b){}};var Rb={0:200,1223:204},Sb=r.ajaxSettings.xhr();o.cors=!!Sb&&"withCredentials"in Sb,o.ajax=Sb=!!Sb,r.ajaxTransport(function(b){var c,d;if(o.cors||Sb&&!b.crossDomain)return{send:function(e,f){var g,h=b.xhr();if(h.open(b.type,b.url,b.async,b.username,b.password),b.xhrFields)for(g in b.xhrFields)h[g]=b.xhrFields[g];b.mimeType&&h.overrideMimeType&&h.overrideMimeType(b.mimeType),b.crossDomain||e["X-Requested-With"]||(e["X-Requested-With"]="XMLHttpRequest");for(g in e)h.setRequestHeader(g,e[g]);c=function(a){return function(){c&&(c=d=h.onload=h.onerror=h.onabort=h.onreadystatechange=null,"abort"===a?h.abort():"error"===a?"number"!=typeof h.status?f(0,"error"):f(h.status,h.statusText):f(Rb[h.status]||h.status,h.statusText,"text"!==(h.responseType||"text")||"string"!=typeof h.responseText?{binary:h.response}:{text:h.responseText},h.getAllResponseHeaders()))}},h.onload=c(),d=h.onerror=c("error"),void 0!==h.onabort?h.onabort=d:h.onreadystatechange=function(){4===h.readyState&&a.setTimeout(function(){c&&d()})},c=c("abort");try{h.send(b.hasContent&&b.data||null)}catch(i){if(c)throw i}},abort:function(){c&&c()}}}),r.ajaxPrefilter(function(a){a.crossDomain&&(a.contents.script=!1)}),r.ajaxSetup({accepts:{script:"text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"},contents:{script:/\b(?:java|ecma)script\b/},converters:{"text script":function(a){return r.globalEval(a),a}}}),r.ajaxPrefilter("script",function(a){void 0===a.cache&&(a.cache=!1),a.crossDomain&&(a.type="GET")}),r.ajaxTransport("script",function(a){if(a.crossDomain){var b,c;return{send:function(e,f){b=r(" 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /services/dashboard-service/assets/styles.css: -------------------------------------------------------------------------------- 1 | /** 2 | * Copyright (c) HashiCorp, Inc. 3 | * SPDX-License-Identifier: MPL-2.0 4 | */ 5 | 6 | /* 7 | pink (light to dark) 8 | #c62a71 9 | #9e225a 10 | #771944 11 | #4f112d 12 | #280817 13 | 14 | #7c8797 15 | 16 | lightest pink #f9ebf2 17 | */ 18 | 19 | body { 20 | background: #c62a71; 21 | background: -moz-linear-gradient(-45deg, #c62a71 0%, #771944 100%); 22 | background: -webkit-linear-gradient(-45deg, #c62a71 0%,#771944 100%); 23 | background: linear-gradient(135deg, #c62a71 0% ,#771944 100%); 24 | filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#c62a71', endColorstr='#771944',GradientType=1 ); 25 | 26 | /* height: 100%; /* Firefox background fix */ */ 27 | 28 | margin: 0; 29 | padding: 1em; 30 | } 31 | 32 | body, 33 | p { 34 | font-family: -apple-system, BlinkMacSystemFont, sans-serif; 35 | } 36 | 37 | h1 { 38 | color: #f9ebf2; 39 | font-weight: normal; 40 | } 41 | 42 | #line { 43 | border-bottom: 10px solid #771944; 44 | width: 4em; 45 | } 46 | 47 | #count { 48 | font-size: 15em; 49 | font-weight: bold; 50 | text-align: right; 51 | color: #fff; 52 | } 53 | 54 | #hostname { 55 | color: #f9ebf2; 56 | text-align: right; 57 | font-family: monospace; 58 | } 59 | 60 | #connection-status { 61 | position: fixed; 62 | top: 10px; 63 | right: 10px; 64 | font-weight: bold; 65 | color: white; 66 | border-radius: 0.2em; 67 | padding: 0.2em 0.5em; 68 | text-align: right; 69 | background-color: red; 70 | } 71 | 72 | .connected { 73 | background-color: green !important; 74 | } 75 | 76 | .container { 77 | margin: 0 auto; 78 | max-width: 700px; 79 | } 80 | 81 | @media only screen and (max-width: 700px) { 82 | body { 83 | padding: 10px; 84 | } 85 | h1 { 86 | font-size: 1.5em; 87 | } 88 | #count { 89 | font-size: 8em; 90 | } 91 | } 92 | -------------------------------------------------------------------------------- /services/dashboard-service/bin/build: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | APPNAME=$(basename `pwd`) 4 | 5 | # Bundle web assets 6 | echo "Bundling web assets..." 7 | rice embed-go 8 | 9 | # Build linux version 10 | echo "Building Linux..." 11 | GOOS=linux GOARCH=amd64 go build -v . 12 | mkdir -p dist/linux-amd64 13 | mv $APPNAME dist/linux-amd64/ 14 | cd dist/linux-amd64 15 | zip $APPNAME.zip $APPNAME 16 | cd ../../ 17 | 18 | # Build for local platform 19 | echo "Building Darwin..." 20 | GOOS=darwin GOARCH=amd64 go build -v . 21 | mkdir -p dist/darwin-amd64 22 | mv $APPNAME dist/darwin-amd64/ 23 | cd dist/darwin-amd64 24 | zip $APPNAME.zip $APPNAME 25 | cd ../../ 26 | -------------------------------------------------------------------------------- /services/dashboard-service/go.mod: -------------------------------------------------------------------------------- 1 | module github.com/hashicorp/demo-consul-101/services/dashboard-service 2 | 3 | go 1.17 4 | 5 | require ( 6 | github.com/GeertJohan/go.rice v1.0.2 7 | github.com/gorilla/mux v1.8.0 8 | github.com/graarh/golang-socketio v0.0.0-20170510162725-2c44953b9b5f 9 | github.com/GeertJohan/go.incremental v1.0.0 // indirect 10 | github.com/akavel/rsrc v0.8.0 // indirect 11 | github.com/daaku/go.zipexe v1.0.1 // indirect 12 | github.com/gorilla/websocket v1.4.2 // indirect 13 | github.com/jessevdk/go-flags v1.4.0 // indirect 14 | github.com/nkovacs/streamquote v1.0.0 // indirect 15 | github.com/valyala/bytebufferpool v1.0.0 // indirect 16 | github.com/valyala/fasttemplate v1.0.1 // indirect 17 | ) 18 | -------------------------------------------------------------------------------- /services/dashboard-service/go.sum: -------------------------------------------------------------------------------- 1 | github.com/GeertJohan/go.incremental v1.0.0 h1:7AH+pY1XUgQE4Y1HcXYaMqAI0m9yrFqo/jt0CW30vsg= 2 | github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0= 3 | github.com/GeertJohan/go.rice v1.0.2 h1:PtRw+Tg3oa3HYwiDBZyvOJ8LdIyf6lAovJJtr7YOAYk= 4 | github.com/GeertJohan/go.rice v1.0.2/go.mod h1:af5vUNlDNkCjOZeSGFgIJxDje9qdjsO6hshx0gTmZt4= 5 | github.com/akavel/rsrc v0.8.0 h1:zjWn7ukO9Kc5Q62DOJCcxGpXC18RawVtYAGdz2aLlfw= 6 | github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c= 7 | github.com/daaku/go.zipexe v1.0.0/go.mod h1:z8IiR6TsVLEYKwXAoE/I+8ys/sDkgTzSL0CLnGVd57E= 8 | github.com/daaku/go.zipexe v1.0.1 h1:wV4zMsDOI2SZ2m7Tdz1Ps96Zrx+TzaK15VbUaGozw0M= 9 | github.com/daaku/go.zipexe v1.0.1/go.mod h1:5xWogtqlYnfBXkSB1o9xysukNP9GTvaNkqzUZbt3Bw8= 10 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 11 | github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI= 12 | github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So= 13 | github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc= 14 | github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= 15 | github.com/graarh/golang-socketio v0.0.0-20170510162725-2c44953b9b5f h1:utzdm9zUvVWGRtIpkdE4+36n+Gv60kNb7mFvgGxLElY= 16 | github.com/graarh/golang-socketio v0.0.0-20170510162725-2c44953b9b5f/go.mod h1:8gudiNCFh3ZfvInknmoXzPeV17FSH+X2J5k2cUPIwnA= 17 | github.com/jessevdk/go-flags v1.4.0 h1:4IU2WS7AumrZ/40jfhf4QVDMsQwqA7VEHozFRrGARJA= 18 | github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI= 19 | github.com/nkovacs/streamquote v1.0.0 h1:PmVIV08Zlx2lZK5fFZlMZ04eHcDTIFJCv/5/0twVUow= 20 | github.com/nkovacs/streamquote v1.0.0/go.mod h1:BN+NaZ2CmdKqUuTUXUEm9j95B2TRbpOWpxbJYzzgUsc= 21 | github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw= 22 | github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc= 23 | github.com/valyala/fasttemplate v1.0.1 h1:tY9CJiPnMXf1ERmG2EyK7gNUd+c6RKGD0IfU8WdUSz8= 24 | github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8= 25 | -------------------------------------------------------------------------------- /services/dashboard-service/main.go: -------------------------------------------------------------------------------- 1 | // Copyright (c) HashiCorp, Inc. 2 | // SPDX-License-Identifier: MPL-2.0 3 | 4 | package main 5 | 6 | import ( 7 | "encoding/json" 8 | "expvar" 9 | "fmt" 10 | "io" 11 | "io/ioutil" 12 | "log" 13 | "net/http" 14 | "os" 15 | "sync" 16 | "time" 17 | 18 | rice "github.com/GeertJohan/go.rice" 19 | "github.com/gorilla/mux" 20 | gosocketio "github.com/graarh/golang-socketio" 21 | "github.com/graarh/golang-socketio/transport" 22 | ) 23 | 24 | var countingServiceURL string 25 | var port string 26 | 27 | func main() { 28 | port = getEnvOrDefault("PORT", "80") 29 | portWithColon := fmt.Sprintf(":%s", port) 30 | 31 | countingServiceURL = getEnvOrDefault("COUNTING_SERVICE_URL", "http://localhost:9001") 32 | 33 | fmt.Printf("Starting server on http://0.0.0.0:%s\n", port) 34 | fmt.Println("(Pass as PORT environment variable)") 35 | fmt.Printf("Using counting service at %s\n", countingServiceURL) 36 | fmt.Println("(Pass as COUNTING_SERVICE_URL environment variable)") 37 | 38 | failTrack := new(failureTracker) 39 | 40 | router := mux.NewRouter() 41 | router.PathPrefix("/socket.io/").Handler(startWebsocket(failTrack)) 42 | router.HandleFunc("/health", HealthHandler) 43 | router.HandleFunc("/health/api", HealthAPIHandler(failTrack)) 44 | router.Handle("/metrics", expvar.Handler()) 45 | router.PathPrefix("/").Handler(http.FileServer(rice.MustFindBox("assets").HTTPBox())) 46 | 47 | log.Fatal(http.ListenAndServe(portWithColon, router)) 48 | } 49 | 50 | func getEnvOrDefault(key, fallback string) string { 51 | if value, ok := os.LookupEnv(key); ok { 52 | return value 53 | } 54 | return fallback 55 | } 56 | 57 | // HealthHandler returns a successful status and a message. 58 | // For use by Consul or other processes that need to verify service health. 59 | func HealthHandler(w http.ResponseWriter, r *http.Request) { 60 | w.WriteHeader(http.StatusOK) 61 | fmt.Fprintf(w, "Hello, you've hit %s\n", r.URL.Path) 62 | } 63 | 64 | type failureTracker struct { 65 | lock sync.RWMutex 66 | latest bool // indicates condition of most recent connection attempt 67 | failures int // counts the number of consecutive connection failures 68 | } 69 | 70 | func (ft *failureTracker) Count(ok bool) { 71 | ft.lock.Lock() 72 | defer ft.lock.Unlock() 73 | 74 | if ft.latest = ok; ok { 75 | ft.failures = 0 76 | } else { 77 | ft.failures++ 78 | } 79 | } 80 | 81 | func (ft *failureTracker) Status() (bool, int) { 82 | ft.lock.RLock() 83 | defer ft.lock.RUnlock() 84 | return ft.latest, ft.failures 85 | } 86 | 87 | // HealthAPIHandler returns the condition of the connectivity between the 88 | // dashboard and the backend API server. 89 | func HealthAPIHandler(ft *failureTracker) http.HandlerFunc { 90 | return func(w http.ResponseWriter, r *http.Request) { 91 | statusOK, failures := ft.Status() 92 | if statusOK { 93 | w.WriteHeader(http.StatusOK) 94 | _, _ = io.WriteString(w, "ok") 95 | } else { 96 | w.WriteHeader(http.StatusServiceUnavailable) 97 | _, _ = io.WriteString(w, fmt.Sprintf( 98 | "failures: %d", failures, 99 | )) 100 | } 101 | } 102 | } 103 | 104 | func startWebsocket(ft *failureTracker) *gosocketio.Server { 105 | server := gosocketio.NewServer(transport.GetDefaultWebsocketTransport()) 106 | 107 | fmt.Println("Starting websocket server...") 108 | server.On(gosocketio.OnConnection, handleConnectionFunc(ft)) 109 | server.On("send", handleSendFunc(ft)) 110 | 111 | return server 112 | } 113 | 114 | func handleConnectionFunc(ft *failureTracker) func(c *gosocketio.Channel) { 115 | return func(c *gosocketio.Channel) { 116 | fmt.Println("New client connected") 117 | c.Join("visits") 118 | handleSendFunc(ft)(c, Count{}) 119 | } 120 | } 121 | 122 | func handleSendFunc(ft *failureTracker) func(*gosocketio.Channel, Count) string { 123 | return func(c *gosocketio.Channel, msg Count) string { 124 | count, err := getAndParseCount() 125 | if err != nil { 126 | count = Count{Count: -1, Message: err.Error(), Hostname: "[Unreachable]"} 127 | ft.Count(false) 128 | } 129 | fmt.Println("Fetched count", count.Count) 130 | c.Ack("message", count, time.Second*10) 131 | ft.Count(true) 132 | return "OK" 133 | } 134 | } 135 | 136 | // Count stores a number that is being counted and other data to send to 137 | // websocket clients. 138 | type Count struct { 139 | Count int `json:"count"` 140 | Message string `json:"message"` 141 | Hostname string `json:"hostname"` 142 | } 143 | 144 | func getAndParseCount() (Count, error) { 145 | url := countingServiceURL 146 | 147 | // NOTE: We use short timeouts so round robin load balancing 148 | // of services can be experienced during lab demos. 149 | tr := &http.Transport{ 150 | IdleConnTimeout: time.Second * 1, 151 | } 152 | 153 | httpClient := http.Client{ 154 | Timeout: time.Second * 2, 155 | Transport: tr, 156 | } 157 | 158 | req, err := http.NewRequest(http.MethodGet, url, nil) 159 | if err != nil { 160 | return Count{}, err 161 | } 162 | 163 | req.Header.Set("User-Agent", "HashiCorp Training Lab") 164 | 165 | res, getErr := httpClient.Do(req) 166 | if getErr != nil { 167 | return Count{}, getErr 168 | } 169 | 170 | body, readErr := ioutil.ReadAll(res.Body) 171 | if readErr != nil { 172 | return Count{}, readErr 173 | } 174 | 175 | defer res.Body.Close() 176 | return parseCount(body) 177 | } 178 | 179 | func parseCount(body []byte) (Count, error) { 180 | textBytes := []byte(body) 181 | 182 | count := Count{} 183 | err := json.Unmarshal(textBytes, &count) 184 | if err != nil { 185 | fmt.Println(err) 186 | return count, err 187 | } 188 | return count, err 189 | } 190 | --------------------------------------------------------------------------------