├── Dockerfile ├── Contribute.md ├── learn.md ├── .github └── workflows │ └── docker-ci-cd.yml ├── src └── index.html ├── README.md └── LICENSE /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM nginx 2 | ADD src/* /usr/share/nginx/html/ 3 | EXPOSE 80 4 | CMD ["nginx","-g","daemon off;"] 5 | -------------------------------------------------------------------------------- /Contribute.md: -------------------------------------------------------------------------------- 1 | ## Contribution guide 2 | - Contribution to guide is fully welcome 3 | - Any type of contribution will be appreciated 4 | - Open an issue if needed 5 | -------------------------------------------------------------------------------- /learn.md: -------------------------------------------------------------------------------- 1 | ## Build CI-CD for docker Image 2 | Learn how to build ⚙ a CI-CD pipeline for docker 🐳 images with github Actions. If you found this repo useful please star ⭐ it. [Learn](./README.md) 3 | -------------------------------------------------------------------------------- /.github/workflows/docker-ci-cd.yml: -------------------------------------------------------------------------------- 1 | name: Docker image CI 2 | on: 3 | push: 4 | branches: [ "main" ] 5 | jobs: 6 | docker-build: 7 | runs-on: ubuntu-latest 8 | steps: 9 | - uses: actions/checkout@v3 10 | - name: Build the Docker image 11 | run: | 12 | docker build . --file Dockerfile --tag hackthenumber 13 | docker login -u ${{secrets.USERNAME}} -p ${{secrets.TOKEN}} 14 | docker tag hackthenumber ${{secrets.USERNAME}}/hackthenumber 15 | docker push ${{secrets.USERNAME}}/hackthenumber && echo "✅ Deployed to Docker Hub" || ( echo "❌ Deployment to Docker Hub failed" && exit 1 ) 16 | 17 | 18 | docker-test: 19 | runs-on: ubuntu-latest 20 | needs: docker-build 21 | steps: 22 | - uses: actions/checkout@v3 23 | - name: Test image presence 24 | run: | 25 | docker pull ${{secrets.USERNAME}}/hackthenumber 26 | docker image inspect ${{secrets.USERNAME}}/hackthenumber 27 | if [[ $? -eq 1 ]]; then 28 | echo "❌ Image not found!" 29 | exit 1 # This will cause the job to fail 30 | else 31 | echo "✅ Image Build Successfully!" 32 | fi 33 | - name: Test image response 34 | run: | 35 | docker run --rm --name test -d ${{secrets.USERNAME}}/hackthenumber 36 | response=$(docker exec test curl -s -o /dev/null -w "%{http_code}" http://localhost ) 37 | if [[ $response -ne 200 ]]; then 38 | echo "❌ Image response is not 200!" 39 | exit 1 40 | else 41 | echo "✅ Image response is 200!" 42 | fi 43 | 44 | -------------------------------------------------------------------------------- /src/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | Demo Site : Hack The number 8 | 69 | 87 | 88 | 89 |
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103 | 104 | 105 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Docker-Image-with-GitHub-Actions 2 | This repo provides a guide 📗 to creating a simple pipeline to build ⚙ and upload docker 🐳 image artifacts to the docker hub 🐳 repo with the help of GitHub actions 3 | as changes take place in GitHub main branch. 4 | 5 | ## Prerequisites 6 | 1. Docker 🐳 basics. 7 | - [introduction to docker 🐳](https://youtu.be/17Bl31rlnRM) 8 | - [Docker 🐳 complete course](https://youtu.be/3c-iBn73dDE) 9 | 10 | 1. Yaml 📄 basics 11 | - [Yaml 📄 tutorial](https://youtu.be/1uFVr15xDGg) 12 | - [Yaml 📄 Complete course](https://youtu.be/IA90BTozdow) 13 | 14 | ## Note 15 | If you are viewing this page from GitHub pages then some code for GitHub secrets will not be shown, you will only 16 | see a $ sign. Check out GitHub repo from 👉[Here](https://github.com/Sandeep-source/Docker-Image-with-GitHub-Actions) 17 | for the correct code. 18 | 19 | ## Scanario 20 | 21 | For this demo, the application is to be dockerized 🐳 in a static site. It is a simple game of guessing 🤔 numbers between 0 0️⃣ to 9 9️⃣. You access this page 22 | [Here](https://sandeep-source.github.io/Docker-Image-with-GitHub-Actions/src/) 23 | 24 | ![Screenshot](https://user-images.githubusercontent.com/61611561/202146123-80da9007-d472-48ce-ad0c-de3eab997eab.png) 25 | 26 | ## Repository structure 27 | 28 | ``` 29 | /src 30 | index.html 31 | index.css 32 | /Dockerfile 33 | /README.md 34 | ``` 35 | Let's take a look 👀 at source files 🗃 36 | 37 | 1. `/src` - This folder contains source files 📁 for our static site. 38 | 1. `Dockerfile` - This is a basic Dockerfile 🐳 which specifies how the image should be built from the source. We will take a look 👀 at this in a moment. 39 | 3. `README.md` - This is the file 📄 you currently reading. 40 | 41 | ## Dockerfile 42 | 43 | Dockerfile 🐳 provides a set of instuctions to build ⚙ the image. For this repo it looks 👀 like the following. 44 | 45 | ```Dockerfile 46 | FROM nginx 47 | ADD src/* /usr/share/nginx/html/ 48 | EXPOSE 80 49 | CMD ["nginx","-g","daemon off;"] 50 | ``` 51 | 52 | Let's take a look 👀 at each instruction to understand what these instructions mean 53 | 54 | 1. `FROM nginx` - This line tells docker 🐳 to use Nginx 🆖 as the official image as a base image for our new image. 55 | 2. `ADD src/* /usr/share/nginx/html/` - This line copies files 🗃 of `src` folder inside the `/usr/share/nginx/html/` folder of image. `/usr/share/nginx/html/` folder is used by the nginx 🆖 server as entry point of website. 56 | 3. ```EXPOSE 80``` - This line tells docker 🐳 to open port 80 inside the docker 🐳 container so that we can communicate with the nginx 🆖 server inside. 57 | 4. ```CMD ["nginx","-g","daemon off;"]``` - This last cline starts Nginx 🆖 server and runs ▶ every time the docker 🐳 container start. 58 | 59 | It's all about what we need to get started. Let's take a look 👀 how to setup GitHub actions to create a pipeline. 60 | 61 | ## Steps to create 🛠 a pipeline 62 | ### Create github workflow 63 | 64 | 1. Open github repo and click on actions option. 65 | 2. Search 🔍 for Simple workflow and select the most suitable from the option that appeared. 66 | 3. Rename the file 📄 with the name you want for your workflow. 67 | 68 | ### Writing Code 👨‍💻 for workflow 69 | 70 | 1. Replace 🔁 the code 👩‍💻 of workflow with the following. 71 | 72 | ```yaml 73 | name: 74 | on: 75 | jobs: 76 | 77 | ``` 78 | Let's understand 🤔 what this code 👩‍💻 means 79 | 80 | - The lines starting with # represents comments in YAML. 81 | - ```name:``` - Defines the name for your workflow. 82 | - ```on:``` - When we create a GitHub action, we want the action to run ▶ on certain events i.e push to a branch. This `on` parameter describes the events in which the action is going to run ▶. 83 | - ```jobs:``` - jobs work section is the place where we define what going to happen when events specified in the `on:` section occurs. 84 | 85 | 2. Give a name to your workflow 86 | 87 | ```yaml 88 | name: Docker image CI 89 | ``` 90 | 91 | 3. Specify the event of our interest in this case push event 92 | 93 | - Add event 94 | 95 | ```yaml 96 | name: Docker image CI 97 | on: 98 | push: 99 | ``` 100 | 101 | - Add branches for which we going to perform some action 102 | 103 | ```yaml 104 | name: Docker image CI 105 | on: 106 | push: 107 | branches: [ "main" ] 108 | ``` 109 | 110 | 4. Now the remaining part of the workflow is jobs section. Jobs define the set of actions (Tasks) to be performed. These action can run ▶ sequentially or in parallel. 111 | for this demo we are just going to create one job named docker-build. 112 | 113 | ```yaml 114 | name: Docker image CI 115 | on: 116 | push: 117 | branches: [ "main" ] 118 | jobs: 119 | docker-build: 120 | ``` 121 | 122 | 5. Each job section has following things 123 | 124 | - `runs-on:` - Tells 📢 the platform on which this job(Task) is going to run ▶ on. For this demo, we are taking 'ubuntu-latest'. 125 | - `steps:` - This defines a set of steps to be performed to get the job done. 126 | - Now our code 👩‍💻 will look 👀 like this. 127 | 128 | ```yaml 129 | name: Docker image CI 130 | on: 131 | push: 132 | branches: [ "main" ] 133 | jobs: 134 | docker-build: 135 | runs-on: ubuntu-latest 136 | steps: 137 | ``` 138 | 139 | Each step in steps walk section has the following parts 140 | 141 | - `name:` - name of the step 142 | - `run:` - set of command 💻 to run ▶ 143 | - `uses:` - rerefence of any other action which is used by the current steps. The referenced action will run ▶ first.`optional` 144 | - Apart from these, there are many other optional parts. 145 | 146 | 5. Add the following code 👨‍💻 in the steps section 147 | 148 | ```yaml 149 | - uses: actions/checkout@v3 150 | - name: Build the Docker image 151 | run: | 152 | ``` 153 | 154 | - notice `|` after `run:` this allows us to write multiple commands 💻. 155 | 156 | 6. To build ⚙ image add the following command 💻 to the `Build the Docker image` step and replace `` With the name of your choice. 157 | 158 | ```yaml 159 | docker build . --file Dockerfile --tag 160 | ``` 161 | 162 | - Now our file 📄 look 👀 something like this 163 | 164 | ```yaml 165 | name: Docker image CI 166 | on: 167 | push: 168 | branches: [ "main" ] 169 | jobs: 170 | docker-build: 171 | runs-on: ubuntu-latest 172 | steps: 173 | - uses: actions/checkout@v3 174 | - name: Build the Docker image 175 | run: | 176 | docker build . --file Dockerfile --tag hackthenumber 177 | ``` 178 | 179 | - Notice 📝 the uses part specifies `actions/checkout@v3`. This action checks if our repository is present and if we have access to it. 180 | - Command 💻 `docker build . --file Dockerfile --tag hackthenumber` builds ⚙ an image named hackthenumber it is currently stored at the local system at which the job is running. 181 | 182 | 7. Login 🔐 to dockerhub 🐳 183 | 184 | To make push the image to the docker hub 🐳 we need to login to the docker hub 🐳. Docker recommends creating access tokens for logins 🔐 instead of using password 🔑. 185 | - Creating dockerhub 🐳 Access token 🗝 186 | 187 | - To create an access token login 🔐 to docker hub 🐳. Goto access `Account Setting > Security > New Access token`. 188 | 189 | ![acc](https://user-images.githubusercontent.com/61611561/202457175-6c55497d-596a-4537-831a-d4f59041400f.png) 190 | 191 | ![security](https://user-images.githubusercontent.com/61611561/202457235-8dcde5f3-e603-4a56-a278-ce77beb0d9b9.png) 192 | 193 | 194 | 195 | - Enter description for the token and click generate ⚙. 196 | - Select `Copy and Close`. 197 | 198 | - Adding passwords 🔑 directly to workflow files 📄 can be a potential threat. To make this secure GitHub provides secrets to store passwords 🔑 etc. To add the secrets to GitHub repo do the following. 199 | 200 | - Goto your repo. 201 | - Open Settings 🔧. 202 | - Select `Secret > Actions > New Repository Secret` 203 | - Add DOCKERHUB as name and your docker hub username as secret. 204 | - Add another secret for TOKEN as the name and paste the access token you generated ⚙ in the previous step. 205 | 206 | - Login 🔐 to Dockerhub 🐳 207 | 208 | - Add the following lines to run part to login 🔐 209 | 210 | ```yaml 211 | docker login -u ${{secrets.USERNAME}} -p ${{secrets.TOKEN}} 212 | ``` 213 | 214 | 8. Tag image to refer to Dockerhub 🐳 repo 215 | 216 | - To tag image add the following command 💻 by replacing `` with the image name you have choosen for your image 217 | 218 | ```yaml 219 | docker tag ${{secrets.USERNAME}}/ 220 | ``` 221 | 222 | - With our choosen name it will look 👀 like something this 223 | 224 | ```yaml 225 | docker tag hackthenumber ${{secrets.USERNAME}}/hackthenumber 226 | ``` 227 | 228 | 9. Add the following line to push image to dockerhub 🐳 229 | 230 | ```yaml 231 | docker push ${{secrets.USERNAME}}/hackthenumber 232 | ``` 233 | 234 | Now our file 📄 will look 👀 like something this 235 | 236 | ```yaml 237 | name: Docker image CI 238 | on: 239 | push: 240 | branches: [ "main" ] 241 | jobs: 242 | docker-build: 243 | runs-on: ubuntu-latest 244 | steps: 245 | - uses: actions/checkout@v3 246 | - name: Build the Docker image 247 | run: | 248 | docker build . --file Dockerfile --tag hackthenumber 249 | docker login -u ${{secrets.USERNAME}} -p ${{secrets.TOKEN}} 250 | docker tag hackthenumber ${{secrets.USERNAME}}/hackthenumber 251 | docker push ${{secrets.USERNAME}}/hackthenumber 252 | ``` 253 | 254 | Similarly, you can add code to test if everything is working fine in the same script. After adding the testing code, our final code will look like this. 255 | ```yaml 256 | name: Docker image CI 257 | on: 258 | push: 259 | branches: [ "main" ] 260 | jobs: 261 | docker-build: 262 | runs-on: ubuntu-latest 263 | steps: 264 | - uses: actions/checkout@v3 265 | - name: Build the Docker image 266 | run: | 267 | docker build . --file Dockerfile --tag hackthenumber 268 | docker login -u ${{secrets.USERNAME}} -p ${{secrets.TOKEN}} 269 | docker tag hackthenumber ${{secrets.USERNAME}}/hackthenumber 270 | 271 | docker-test: 272 | runs-on: ubuntu-latest 273 | needs: docker-build 274 | steps: 275 | - uses: actions/checkout@v3 276 | - name: Test image presence 277 | run: | 278 | docker image inspect ${{secrets.USERNAME}}/hackthenumber 279 | if [[ $? -eq 1 ]]; then 280 | echo "❌ Image not found!" 281 | exit 1 # This will cause the job to fail 282 | else 283 | echo "✅ Image Build Successfully!" 284 | fi 285 | - name: Test image response 286 | run: | 287 | docker run -itdp 8000:80 --rm ${{secrets.USERNAME}}/hackthenumber 288 | response=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:8000) 289 | if [[ $response -ne 200 ]]; then 290 | echo "❌ Image response is not 200!" 291 | exit 1 292 | else 293 | echo "✅ Image response is 200!" 294 | fi 295 | docker-deploy: 296 | runs-on: ubuntu-latest 297 | needs: docker-test 298 | steps: 299 | - uses: actions/checkout@v3 300 | - name: Deploy to docker hub 301 | run: | 302 | docker push ${{secrets.USERNAME}}/hackthenumber && echo "✅ Deployed to Docker Hub" || echo "❌ Deployment to Docker Hub failed" 303 | ``` 304 | 305 | ## Quick Test deployed image 306 | 307 | - Go to https://labs.play-with-docker.com and login 🔐 with dockerhub 🐳 credentials. 308 | - Click start and then Add New Instance. 309 | 310 | ![image](https://user-images.githubusercontent.com/61611561/202459374-7e24e6b2-458c-408e-9911-4fb18e88f01e.png) 311 | 312 | ![Add instance](https://user-images.githubusercontent.com/61611561/202459763-11efed48-3ab4-4194-bde8-e960d41eaefd.png) 313 | 314 | - Run ⚙ the command 💻 `docker run -dp 8080:80 /` by replacing `` with the dockerhub username and `` with the image name used in the GitHub action. For example 315 | 316 | ```bash 317 | docker run -dp 8080:80 sandeepsource/hackthenumber 318 | ``` 319 | 320 | - Click the port number `8080` on the right side of the open port button. If the button for port `8080` not appeared then click the `open port` button and enter 8080 and click ok. 321 | 322 | ![open port](https://user-images.githubusercontent.com/61611561/202462363-224ccd86-29a7-448e-afd4-ce90901d009b.png) 323 | 324 | 325 | - Now if everything is gone well 🙌 you will able to see following output. 326 | 327 | ![output](https://user-images.githubusercontent.com/61611561/202462572-e481e050-0a96-42fd-ac2e-e42513626447.png) 328 | 329 | 330 | 331 | 332 | 333 | 334 | 335 | 336 | 337 | 338 | 339 | 340 | 341 | 342 | 343 | 344 | 345 | 346 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------