Create an account there you should get a default namespace (mine’s bullyrooks). Once you’re in create a new repo<\/p>\n\n\n\n Name it Now we need to add the registry credentials to our github repo. Navigate to your github repo and click on the settings tab. Find secrets in the nav bar.<\/p>\n\n\n\n We’re going to make two secrets Create a new file in the root of the project directory called Here’s what we’re doing<\/p>\n\n\n\n Docker has pretty advanced caching techniques built in. By defining our build in this way we’re limiting the number of things that need to be rebuild for small changes (like a code change). Larger changes (like adding a dependency) can’t use previously cached stages, so they’ll have to rebuild from an earlier stage (but not from the earliest phases such as downloading the build image). <\/p>\n\n\n\n you can build locally to test it out<\/p>\n\n\n\n Add the following lines to our Here’s what we’re doing with this pipeline:<\/p>\n\n\n\n Lets push this up on a feature branch to see if it builds:<\/p>\n\n\n\n Its going to take a long time the first time because EVERYTHING<\/strong> has to be pulled down, cached and built the first time. Subsequent builds shouldn’t take as long.<\/p>\n\n\n\n We’re going to merge this to main, but we have to add the docker build to the main pipeline as well. I’m going to do something a little different here though. When we build on a feature branch we’re tagging the image with a build tag by default. When we build off of main we’re going to want a semantic version. There’s a bunch of ways to do this, but I want it to be automated and as hands off as possible.<\/p>\n\n\n\n Add this code to the You can see that we’re pulling in a script from a github repo, setting an environment variable and then using that as our tag when we push up the image. This script automatically revs the version (based on a git tag) and then pushes that tag back onto the git commit. I am pretty sure that it only revs patch version though, if you want to rev major or minor version, you’ll have to push up a git tag onto the main branch that reflects your desired version.<\/p>\n\n\n\n Lets try it out.<\/p>\n\n\n\n Switch back over to your github actions and watch the main pipeline build. You should see something like this in your build logs:<\/p>\n\n\n\n And you can see that the version was calculated (defaults to You can confirm this in git<\/p>\n\n\n\n And you can push up a new major version<\/p>\n\n\n\n make a minor change (a newline will work) and push that up as well<\/p>\n\n\n\n And you’ll see that the version change was picked up and incorporated<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":"![\"\"](\"https:\/\/i0.wp.com\/bullyrooks.com\/wp-content\/uploads\/2022\/01\/image-18.png?resize=694%2C70&ssl=1\")
<\/figure>\n\n\n\ncloud_application<\/code> and submit the repo creation form<\/p>\n\n\n\n![\"\"](\"https:\/\/i0.wp.com\/bullyrooks.com\/wp-content\/uploads\/2022\/01\/image-19.png?resize=549%2C600&ssl=1\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/i0.wp.com\/bullyrooks.com\/wp-content\/uploads\/2022\/01\/image-20.png?resize=314%2C153&ssl=1\")
<\/figure>\n\n\n\nCANISTER_USERNAME <\/code>and CANISTER_PASSWORD<\/code> populating those values with the credentials we just created for canister.io<\/p>\n\n\n\n![\"\"](\"https:\/\/i0.wp.com\/bullyrooks.com\/wp-content\/uploads\/2022\/01\/image-21.png?resize=333%2C424&ssl=1\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/i0.wp.com\/bullyrooks.com\/wp-content\/uploads\/2022\/01\/image-22.png?resize=706%2C177&ssl=1\")
<\/figure>\n\n\n\nCreate a Dockerfile<\/h2>\n\n\n\n
Dockerfile<\/code>. Add this code<\/p>\n\n\n\n# syntax=docker\/dockerfile:experimental\nFROM openjdk:11-slim-buster as build\n\nCOPY .mvn .mvn\nCOPY mvnw .\nCOPY pom.xml .\nCOPY src src\n\n# Setup the maven cache\nRUN --mount=type=cache,target=\/root\/.m2,rw .\/mvnw -B package -DskipTests\n\nFROM openjdk:11-jre-slim-buster\nCOPY --from=build target\/*.jar app.jar\nENTRYPOINT [\"java\", \"-jar\", \"app.jar\"]\n<\/code><\/pre>\n\n\n\n$ docker build .<\/code><\/pre>\n\n\n\nAdd Docker Build to our Pipeline.<\/h2>\n\n\n\n
feature.yaml<\/code> github actions file (you’ll have to change out the image name for your registry name)<\/p>\n\n\n\n\n - name: Set up Docker Buildx\n uses: docker\/setup-buildx-action@v1\n\n - name: Login to canister.io\n uses: docker\/login-action@v1\n with:\n registry: cloud.canister.io:5000\n username: ${{ secrets.CANISTER_USERNAME }}\n password: ${{ secrets.CANISTER_PASSWORD }}\n\n - name: Extract metadata (tags, labels) for Docker\n id: meta\n uses: docker\/metadata-action@v3\n with:\n images: cloud.canister.io:5000\/bullyrooks\/cloud_application\n\n - name: Cache Docker layers\n uses: actions\/cache@v2\n with:\n path: \/tmp\/.buildx-cache\n # Key is named differently to avoid collision\n key: ${{ runner.os }}-multi-buildx-${{ github.sha }}\n restore-keys: |\n ${{ runner.os }}-multi-buildx\n\n - name: Build and push\n id: docker_build\n uses: docker\/build-push-action@v2\n with:\n context: .\n push: true\n tags: ${{ steps.meta.outputs.tags }}\n labels: ${{ steps.meta.outputs.labels }}\n cache-from: type=local,src=\/tmp\/.buildx-cache\n cache-to: type=local,mode=max,dest=\/tmp\/.buildx-cache-new\n # This ugly bit is necessary if you don't want your cache to grow forever\n # till it hits GitHub's limit of 5GB.\n # Temp fix\n # https:\/\/github.com\/docker\/build-push-action\/issues\/252\n # https:\/\/github.com\/moby\/buildkit\/issues\/1896\n - name: Move cache\n run: |\n rm -rf \/tmp\/.buildx-cache\n mv \/tmp\/.buildx-cache-new \/tmp\/.buildx-cache<\/code><\/pre>\n\n\n\nGit Commit and Push<\/h2>\n\n\n\n
$ git checkout -b docker_build\nSwitched to a new branch 'docker_build'\n\n$ git add .\n\n$ git commit -m \"docker build on feature\"\n[docker_build e1cfbec] docker build on feature\n 2 files changed, 48 insertions(+), 1 deletion(-)\n create mode 100644 Dockerfile\n\n$ git push --set-upstream origin docker_build\nEnumerating objects: 10, done.\nCounting objects: 100% (10\/10), done.\nDelta compression using up to 4 threads\nCompressing objects: 100% (5\/5), done.\nWriting objects: 100% (6\/6), 1.30 KiB | 1.30 MiB\/s, done.\nTotal 6 (delta 1), reused 0 (delta 0), pack-reused 0\nremote: Resolving deltas: 100% (1\/1), completed with 1 local object.\nremote: \nremote: Create a pull request for 'docker_build' on GitHub by visiting:\nremote: https:\/\/github.com\/bullyrooks\/cloud_application\/pull\/new\/docker_build\nremote:\nTo github.com-bullyrook:bullyrooks\/cloud_application.git\n * [new branch] docker_build -> docker_build\nBranch 'docker_build' set up to track remote branch 'docker_build' from 'origin'.\n<\/code><\/pre>\n\n\n\nCreate the Main Build Pipeline<\/h2>\n\n\n\n
main.yaml<\/code> github action file. Again, make sure to change out your image name for your registry name.<\/p>\n\n\n\n - name: Bump version\n run: |\n git config --global user.email \"github+actions@gmail.com\"\n git config --global user.name \"Actions\"\n git fetch --tags\n wget -O - https:\/\/raw.githubusercontent.com\/treeder\/bump\/master\/gitbump.sh | bash\n echo \"VERSION=$(git tag --sort=-v:refname --list \"v[0-9]*\" | head -n 1 | cut -c 2-)\" >> $GITHUB_ENV<\/span>\n\n - name: Set up Docker Buildx\n uses: docker\/setup-buildx-action@v1\n\n - name: Login to canister.io\n uses: docker\/login-action@v1\n with:\n registry: cloud.canister.io:5000\n username: ${{ secrets.CANISTER_USERNAME }}\n password: ${{ secrets.CANISTER_PASSWORD }}\n\n - name: Extract metadata (tags, labels) for Docker\n id: meta\n uses: docker\/metadata-action@v3\n with:\n images: cloud.canister.io:5000\/bullyrooks\/cloud_application\n #setting value manually, but could come from git tag\n tags: |\n type=ref,event=tag\n\n - name: Cache Docker layers\n uses: actions\/cache@v2\n with:\n path: \/tmp\/.buildx-cache\n # Key is named differently to avoid collision\n key: ${{ runner.os }}-multi-buildx-${{ github.sha }}\n restore-keys: |\n ${{ runner.os }}-multi-buildx\n\n - name: Build and push\n id: docker_build\n uses: docker\/build-push-action@v2\n with:\n context: .\n push: true\n tags: |\n cloud.canister.io:5000\/bullyrooks\/cloud_application:${{ env.VERSION }}<\/span>\n cache-from: type=local,src=\/tmp\/.buildx-cache\n cache-to: type=local,mode=max,dest=\/tmp\/.buildx-cache-new\n # This ugly bit is necessary if you don't want your cache to grow forever\n # till it hits GitHub's limit of 5GB.\n # Temp fix\n # https:\/\/github.com\/docker\/build-push-action\/issues\/252\n # https:\/\/github.com\/moby\/buildkit\/issues\/1896\n - name: Move cache\n run: |\n rm -rf \/tmp\/.buildx-cache\n mv \/tmp\/.buildx-cache-new \/tmp\/.buildx-cache\n<\/code><\/pre>\n\n\n\n$ git add .\n\n$ git commit -m \"main pipeline docker update\"\n[docker_build 350e053] main pipeline docker update\n 1 file changed, 37 insertions(+), 1 deletion(-)\n\n$ git push\nEnumerating objects: 9, done.\nCounting objects: 100% (9\/9), done.\nDelta compression using up to 4 threads\nCompressing objects: 100% (4\/4), done.\nWriting objects: 100% (5\/5), 1.16 KiB | 1.17 MiB\/s, done.\nTotal 5 (delta 1), reused 0 (delta 0), pack-reused 0\nremote: Resolving deltas: 100% (1\/1), completed with 1 local object.\nTo github.com-bullyrook:bullyrooks\/cloud_application.git\n fd00054..350e053 docker_build -> docker_build\n\n$ git merge --squash docker_build\nUpdating cf0e328..350e053\nFast-forward\nSquash commit -- not updating HEAD\n .github\/workflows\/features.yaml | 27 ++++++++++++++-\n .github\/workflows\/main.yaml | 38 +++++++++++++++++++++-\n Dockerfile | 22 +++++++++++++\n ...\/controller\/HelloWorldController.java | 1 -\n 4 files changed, 85 insertions(+), 3 deletions(-)\n create mode 100644 Dockerfile\n\n$ git commit -m \"docker build pipeline\"\n[main f4e91b4] docker build pipeline\n 4 files changed, 85 insertions(+), 3 deletions(-)\n create mode 100644 Dockerfile\n\n$ git push\nEnumerating objects: 28, done.\nCounting objects: 100% (28\/28), done.\nDelta compression using up to 4 threads\nCompressing objects: 100% (11\/11), done.\nWriting objects: 100% (15\/15), 2.19 KiB | 2.19 MiB\/s, done.\nTotal 15 (delta 3), reused 0 (delta 0), pack-reused 0\nremote: Resolving deltas: 100% (3\/3), completed with 2 local objects.\nTo github.com-bullyrook:bullyrooks\/cloud_application.git\n cf0e328..f4e91b4 main -> main\n\n\n<\/code><\/pre>\n\n\n\nVersioning<\/h2>\n\n\n\n
#18 DONE 15.8s\nSetting outputs\n digest=sha256:d75d79c29e3975afec55478aa44f34f3c986da53d18d3afda4671c953699ef6c\n metadata={\n \"containerimage.config.digest\": \"sha256:773003bc0ecd2b1fce4174b048664c06c4a942aa0ca2ff639aebad5978ecf823\",\n \"containerimage.digest\": \"sha256:d75d79c29e3975afec55478aa44f34f3c986da53d18d3afda4671c953699ef6c\",\n \"image.name\": \"cloud.canister.io:5000\/***\/cloud_application:0.0.1\"\n }<\/code><\/pre>\n\n\n\n0.0.1<\/code> when no previous version is available) and pushed up an image tagged with that version.<\/p>\n\n\n\n$ git pull\nremote: Enumerating objects: 1, done.\nremote: Counting objects: 100% (1\/1), done.\nremote: Total 1 (delta 0), reused 1 (delta 0), pack-reused 0\nUnpacking objects: 100% (1\/1), 142 bytes | 47.00 KiB\/s, done.\nFrom github.com-bullyrook:bullyrooks\/cloud_application\n * [new tag] v0.0.1 -> v0.0.1\nAlready up to date.\n\n$ git tag \nv0.0.1\n<\/code><\/pre>\n\n\n\n$ git tag -a v1.0.0 -m \"pushing major version\"\n\n$ git push origin v1.0.0\nEnumerating objects: 1, done.\nCounting objects: 100% (1\/1), done.\nWriting objects: 100% (1\/1), 164 bytes | 164.00 KiB\/s, done.\nTotal 1 (delta 0), reused 0 (delta 0), pack-reused 0\nTo github.com-bullyrook:bullyrooks\/cloud_application.git\n * [new tag] v1.0.0 -> v1.0.0\n<\/code><\/pre>\n\n\n\n$ git add .\n\n$ git commit -m \"no op change\"\n[main a060e27] no op change\n 1 file changed, 1 insertion(+)\n\n$ git push\nEnumerating objects: 19, done.\nCounting objects: 100% (19\/19), done.\nDelta compression using up to 4 threads\nCompressing objects: 100% (7\/7), done.\nWriting objects: 100% (10\/10), 749 bytes | 749.00 KiB\/s, done.\nTotal 10 (delta 2), reused 0 (delta 0), pack-reused 0\nremote: Resolving deltas: 100% (2\/2), completed with 2 local objects.\nTo github.com-bullyrook:bullyrooks\/cloud_application.git\n f4e91b4..a060e27 main -> main\n<\/code><\/pre>\n\n\n\nSetting outputs\n digest=sha256:f69dc33471f047f3f60b7ecb0d1ab561dba3e95ef30e7be655777e9d507079f1\n metadata={\n \"containerimage.config.digest\": \"sha256:d77cb98a1e750d2a6a8aa3cad1858ab04eb1c37e6dfb19ed327fdaa34c0c7dea\",\n \"containerimage.digest\": \"sha256:f69dc33471f047f3f60b7ecb0d1ab561dba3e95ef30e7be655777e9d507079f1\",\n \"image.name\": \"cloud.canister.io:5000\/***\/cloud_application:1.0.1\"\n }<\/code><\/pre>\n\n\n\n