feat: modify action to build and consume container

To speed things up further, we can build and release the actual container on release publication, and then have the action itself consume the image instead of the Dockerfile.

Additionally, we can force the release process to use the latest set of changes by defining a local GHA that uses the Dockerfile instead.
I've proven this works at https://github.com/weierophinney/test-local-action/, where I observed that the build happens relative to the checkout directory, and not to where the action is defined.

Signed-off-by: Matthew Weier O'Phinney <[email protected]>

Author: weierophinney

.github/actions/automatic-releases/action.yml

@@ -0,0 +1,20 @@
+# Definition of the github action
+# as per https://docs.github.com/en/actions/creating-actions/creating-a-docker-container-action
+
+name: 'laminas/automatic-releases'
+description: 'Automates automatic releases for semver-compliant repositories'
+
+inputs:
+  command-name:
+    description: |
+      Command to execute: one of
+       * `laminas:automatic-releases:release`
+       * `laminas:automatic-releases:create-merge-up-pull-request`
+       * `laminas:automatic-releases:switch-default-branch-to-next-minor`
+    required: true
+
+runs:
+  using: 'docker'
+  image: '../../../Dockerfile'
+  args:
+    - ${{ inputs.command-name }}

.github/workflows/automatic-release.yml

@@ -17,7 +17,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Release"
-        uses: "./"
+        uses: "./.github/actions/automatic-releases/"
         with:
           command-name: "laminas:automatic-releases:release"
         env:
@@ -27,7 +27,7 @@ jobs:
           "GIT_AUTHOR_EMAIL": ${{ secrets.GIT_AUTHOR_EMAIL }}
 
       - name: "Create Merge-Up Pull Request"
-        uses: "./"
+        uses: "./.github/actions/automatic-releases/"
         with:
           command-name: "laminas:automatic-releases:create-merge-up-pull-request"
         env:
@@ -37,7 +37,7 @@ jobs:
           "GIT_AUTHOR_EMAIL": ${{ secrets.GIT_AUTHOR_EMAIL }}
 
       - name: "Create and/or Switch to new Release Branch"
-        uses: "./"
+        uses: "./.github/actions/automatic-releases/"
         with:
           command-name: "laminas:automatic-releases:switch-default-branch-to-next-minor"
         env:
@@ -47,7 +47,7 @@ jobs:
           "GIT_AUTHOR_EMAIL": ${{ secrets.GIT_AUTHOR_EMAIL }}
 
       - name: "Bump Changelog Version On Originating Release Branch"
-        uses: "./"
+        uses: "./.github/actions/automatic-releases/"
         with:
           command-name: "laminas:automatic-releases:bump-changelog"
         env:
@@ -57,7 +57,7 @@ jobs:
           "GIT_AUTHOR_EMAIL": ${{ secrets.GIT_AUTHOR_EMAIL }}
 
       - name: "Create new milestones"
-        uses: "./"
+        uses: "./.github/actions/automatic-releases/"
         with:
           command-name: "laminas:automatic-releases:create-milestones"
         env:

.github/workflows/build-and-push-containers.yml

@@ -0,0 +1,47 @@
+name: Build and push containers
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  tags:
+    runs-on: ubuntu-latest
+    outputs:
+      tags: ${{ steps.tags.outputs.tags }}
+    steps:
+      - name: Compile tag list
+        id: tags
+        run: |
+          TAG=${GITHUB_REF/refs\/tags\//}
+          PREFIX=ghcr.io/laminas/automatic-releases
+          MAJOR="${PREFIX}:$(echo ${TAG} | cut -d. -f1)"
+          MINOR="${MAJOR}.$(echo ${TAG} | cut -d. -f2)"
+          PATCH="${PREFIX}:${TAG}"
+          echo "::set-output name=tags::${MAJOR}%0A${MINOR}%0A${PATCH}"
+
+  release-container:
+    runs-on: ubuntu-latest
+    needs: [tags]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.CONTAINER_USERNAME }}
+          password: ${{ secrets.CONTAINER_PAT }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64
+          push: true
+          tags: ${{ needs.tags.outputs.tags }}
+

action.yml

@@ -15,6 +15,6 @@ inputs:
 
 runs:
   using: 'docker'
-  image: 'Dockerfile'
+  image: 'docker://ghcr.io/laminas/automatic-releases:1'
   args:
     - ${{ inputs.command-name }}