├── .gitignore ├── .terraform.lock.hcl ├── LICENSE ├── README.md ├── main.tf ├── modules └── aws-instance │ ├── main.tf │ ├── outputs.tf │ └── variables.tf ├── outputs.tf ├── terraform.tf └── variables.tf /.gitignore: -------------------------------------------------------------------------------- 1 | # Local .terraform directories 2 | **/.terraform/* 3 | 4 | # .tfstate files 5 | *.tfstate 6 | *.tfstate.* 7 | 8 | # Crash log files 9 | crash.log 10 | 11 | # Exclude all .tfvars files, which are likely to contain sentitive data, such as 12 | # password, private keys, and other secrets. These should not be part of version 13 | # control as they are data points which are potentially sensitive and subject 14 | # to change depending on the environment. 15 | # 16 | *.tfvars 17 | 18 | # Ignore override files as they are usually used to override resources locally and so 19 | # are not checked in 20 | override.tf 21 | override.tf.json 22 | *_override.tf 23 | *_override.tf.json 24 | 25 | # Include override files you do wish to add to version control using negated pattern 26 | # 27 | # !example_override.tf 28 | 29 | # Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan 30 | # example: *tfplan* 31 | 32 | # Ignore CLI configuration files 33 | .terraformrc 34 | terraform.rc 35 | -------------------------------------------------------------------------------- /.terraform.lock.hcl: -------------------------------------------------------------------------------- 1 | # This file is maintained automatically by "terraform init". 2 | # Manual edits may be lost in future updates. 3 | 4 | provider "registry.terraform.io/hashicorp/aws" { 5 | version = "5.42.0" 6 | constraints = ">= 3.29.0, >= 4.0.0, >= 5.30.0, ~> 5.42.0" 7 | hashes = [ 8 | "h1:Yxsj34z606m8wssYDHyleuBlQ9i+94MHwRs38thQPZU=", 9 | "zh:0fb12bd56a3ad777b29f957c56dd2119776dbc01b6074458f597990e368c82de", 10 | "zh:16e99c13bef6e3777f67c240c916f57c01c9c142254cfb2720e08281ff906447", 11 | "zh:218268f5fe73bcb19e9a996f781ab66df0da9e333d1c60612e3c51ad28a5105f", 12 | "zh:220b17f7053d11548f35136669687d30ef1f1036e15393275325fd2b9654c715", 13 | "zh:2256cfd74988ce05eada76b42efffc6fe2bf4d60b61f57e4db4fcf65ced4c666", 14 | "zh:52da19f531e0cb9828f73bca620e30264e63a494bd7f9ce826aabcf010d3a241", 15 | "zh:56069ce08d720280ba39aaf2fdd40c4357ffb54262c80e4d39c4e540a38e76af", 16 | "zh:82c81398e68324029167f813fbb7c54fa3d233e99fa05001d85cbce8bdd08bb3", 17 | "zh:82d6eaa87f5ab318959064e6c89adc2baabaf70b13f2f7de866f62416de05352", 18 | "zh:9b12af85486a96aedd8d7984b0ff811a4b42e3d88dad1a3fb4c0b580d04fa425", 19 | "zh:ade8490cfdd8de8b9a82986588595b67e0ad1048d9e2d3a6f5164320179c2cd0", 20 | "zh:b094ef56ae9bfffd586f46d4f7fb0097798738df758a8f3c51578ee163495c7e", 21 | "zh:bd5e68e1e454bae0f8d73cff8448e814a35855a561c33b745e1b8b525fb06c9f", 22 | "zh:c111c6a854bf121facca1642d528bfa80fb4214554ac6c33e4a59c86bc605b71", 23 | "zh:e04df69a557adbcdf8efc77eb45be748f0acbe800ccede1e0895393c87722a0f", 24 | ] 25 | } 26 | 27 | provider "registry.terraform.io/hashicorp/random" { 28 | version = "3.6.2" 29 | hashes = [ 30 | "h1:VavG5unYCa3SYISMKF9pzc3718M0bhPlcbUZZGl7wuo=", 31 | "zh:0ef01a4f81147b32c1bea3429974d4d104bbc4be2ba3cfa667031a8183ef88ec", 32 | "zh:1bcd2d8161e89e39886119965ef0f37fcce2da9c1aca34263dd3002ba05fcb53", 33 | "zh:37c75d15e9514556a5f4ed02e1548aaa95c0ecd6ff9af1119ac905144c70c114", 34 | "zh:4210550a767226976bc7e57d988b9ce48f4411fa8a60cd74a6b246baf7589dad", 35 | "zh:562007382520cd4baa7320f35e1370ffe84e46ed4e2071fdc7e4b1a9b1f8ae9b", 36 | "zh:5efb9da90f665e43f22c2e13e0ce48e86cae2d960aaf1abf721b497f32025916", 37 | "zh:6f71257a6b1218d02a573fc9bff0657410404fb2ef23bc66ae8cd968f98d5ff6", 38 | "zh:78d5eefdd9e494defcb3c68d282b8f96630502cac21d1ea161f53cfe9bb483b3", 39 | "zh:9647e18f221380a85f2f0ab387c68fdafd58af6193a932417299cdcae4710150", 40 | "zh:bb6297ce412c3c2fa9fec726114e5e0508dd2638cad6a0cb433194930c97a544", 41 | "zh:f83e925ed73ff8a5ef6e3608ad9225baa5376446349572c2449c0c0b3cf184b7", 42 | "zh:fbef0781cb64de76b1df1ca11078aecba7800d82fd4a956302734999cfd9a4af", 43 | ] 44 | } 45 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Copyright (c) 2020 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 | # Learn Terraform variables 2 | 3 | You can use input variables to customize your Terraform configuration with 4 | values that can be assigned by end users of your configuration. Input variables 5 | allow users to re-use and customize configuration by providing a consistent 6 | interface to change how a given configuration behaves. 7 | 8 | Follow along with this [Learn Terraform variables](https://developer.hashicorp.com/terraform/tutorials/configuration-language/variables) tutorial. 9 | -------------------------------------------------------------------------------- /main.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | provider "aws" { 5 | region = "us-west-2" 6 | } 7 | 8 | data "aws_availability_zones" "available" { 9 | state = "available" 10 | } 11 | 12 | module "vpc" { 13 | source = "terraform-aws-modules/vpc/aws" 14 | version = "5.7.0" 15 | 16 | cidr = "10.0.0.0/16" 17 | 18 | azs = data.aws_availability_zones.available.names 19 | private_subnets = ["10.0.101.0/24", "10.0.102.0/24"] 20 | public_subnets = ["10.0.1.0/24", "10.0.2.0/24"] 21 | 22 | enable_nat_gateway = true 23 | enable_vpn_gateway = false 24 | 25 | tags = { 26 | project = "project-alpha", 27 | environment = "dev" 28 | } 29 | } 30 | 31 | module "app_security_group" { 32 | source = "terraform-aws-modules/security-group/aws//modules/web" 33 | version = "4.17.0" 34 | 35 | name = "web-sg-project-alpha-dev" 36 | description = "Security group for web-servers with HTTP ports open within VPC" 37 | vpc_id = module.vpc.vpc_id 38 | 39 | ingress_cidr_blocks = module.vpc.public_subnets_cidr_blocks 40 | 41 | tags = { 42 | project = "project-alpha", 43 | environment = "dev" 44 | } 45 | } 46 | 47 | module "lb_security_group" { 48 | source = "terraform-aws-modules/security-group/aws//modules/web" 49 | version = "4.17.0" 50 | 51 | name = "lb-sg-project-alpha-dev" 52 | description = "Security group for load balancer with HTTP ports open within VPC" 53 | vpc_id = module.vpc.vpc_id 54 | 55 | ingress_cidr_blocks = ["0.0.0.0/0"] 56 | 57 | tags = { 58 | project = "project-alpha", 59 | environment = "dev" 60 | } 61 | } 62 | 63 | resource "random_string" "lb_id" { 64 | length = 3 65 | special = false 66 | } 67 | 68 | module "elb_http" { 69 | source = "terraform-aws-modules/elb/aws" 70 | version = "4.0.1" 71 | 72 | # Ensure load balancer name is unique 73 | name = "lb-${random_string.lb_id.result}-project-alpha-dev" 74 | 75 | internal = false 76 | 77 | security_groups = [module.lb_security_group.security_group_id] 78 | subnets = module.vpc.public_subnets 79 | 80 | number_of_instances = length(module.ec2_instances.instance_ids) 81 | instances = module.ec2_instances.instance_ids 82 | 83 | listener = [{ 84 | instance_port = "80" 85 | instance_protocol = "HTTP" 86 | lb_port = "80" 87 | lb_protocol = "HTTP" 88 | }] 89 | 90 | health_check = { 91 | target = "HTTP:80/index.html" 92 | interval = 10 93 | healthy_threshold = 3 94 | unhealthy_threshold = 10 95 | timeout = 5 96 | } 97 | 98 | tags = { 99 | project = "project-alpha", 100 | environment = "dev" 101 | } 102 | } 103 | 104 | module "ec2_instances" { 105 | source = "./modules/aws-instance" 106 | 107 | depends_on = [module.vpc] 108 | 109 | instance_count = 2 110 | instance_type = "t2.micro" 111 | subnet_ids = module.vpc.private_subnets[*] 112 | security_group_ids = [module.app_security_group.security_group_id] 113 | 114 | tags = { 115 | project = "project-alpha", 116 | environment = "dev" 117 | } 118 | } 119 | -------------------------------------------------------------------------------- /modules/aws-instance/main.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | data "aws_ami" "amazon_linux" { 5 | most_recent = true 6 | owners = ["amazon"] 7 | 8 | filter { 9 | name = "name" 10 | values = ["amzn2-ami-hvm-*-x86_64-gp2"] 11 | } 12 | } 13 | 14 | resource "aws_instance" "app" { 15 | count = var.instance_count 16 | 17 | ami = data.aws_ami.amazon_linux.id 18 | instance_type = var.instance_type 19 | 20 | subnet_id = var.subnet_ids[count.index % length(var.subnet_ids)] 21 | vpc_security_group_ids = var.security_group_ids 22 | 23 | user_data = <<-EOF 24 | #!/bin/bash 25 | sudo yum update -y 26 | sudo yum install httpd -y 27 | sudo systemctl enable httpd 28 | sudo systemctl start httpd 29 | echo "
Hello, world!
" > /var/www/html/index.html 30 | EOF 31 | 32 | tags = var.tags 33 | } 34 | -------------------------------------------------------------------------------- /modules/aws-instance/outputs.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | output "instance_ids" { 5 | description = "IDs of EC2 instances" 6 | value = aws_instance.app.*.id 7 | } 8 | -------------------------------------------------------------------------------- /modules/aws-instance/variables.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | variable "instance_count" { 5 | description = "Number of EC2 instances to deploy" 6 | type = number 7 | } 8 | 9 | variable "instance_type" { 10 | description = "Type of EC2 instance to use" 11 | type = string 12 | } 13 | 14 | variable "subnet_ids" { 15 | description = "Subnet IDs for EC2 instances" 16 | type = list(string) 17 | } 18 | 19 | variable "security_group_ids" { 20 | description = "Security group IDs for EC2 instances" 21 | type = list(string) 22 | } 23 | 24 | variable "tags" { 25 | description = "Tags for instances" 26 | type = map 27 | default = {} 28 | } 29 | -------------------------------------------------------------------------------- /outputs.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | output "public_dns_name" { 5 | description = "Public DNS names of the load balancer for this project" 6 | value = module.elb_http.elb_dns_name 7 | } 8 | -------------------------------------------------------------------------------- /terraform.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | terraform { 5 | 6 | /* Uncomment this block to use Terraform Cloud for this tutorial 7 | cloud { 8 | organization = "organization-name" 9 | workspaces { 10 | name = "learn-terraform-variables" 11 | } 12 | } 13 | */ 14 | required_providers { 15 | aws = { 16 | source = "hashicorp/aws" 17 | version = "~> 5.42.0" 18 | } 19 | } 20 | required_version = "~> 1.2" 21 | } 22 | -------------------------------------------------------------------------------- /variables.tf: -------------------------------------------------------------------------------- 1 | # Copyright (c) HashiCorp, Inc. 2 | # SPDX-License-Identifier: MPL-2.0 3 | 4 | # Variable declarations 5 | --------------------------------------------------------------------------------