aliasing

.github/workflows/build-future.yml

@@ -72,4 +72,5 @@ jobs:
       DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
     with:
       tag: ${{ inputs.tag-prefix }}future
+      tag-alias: future
       images: ${{ needs.amd64.outputs.image }} ${{ needs.arm64.outputs.image }}

.github/workflows/build-latest.yml

@@ -77,4 +77,5 @@ jobs:
       DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
     with:
       tag: ${{ inputs.tag-prefix }}latest
+      tag-alias: latest
       images: ${{ needs.amd64.outputs.image }} ${{ needs.arm64.outputs.image }}

.github/workflows/build-testing.yml

@@ -80,4 +80,5 @@ jobs:
       DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
     with:
       tag: ${{ inputs.tag-prefix }}testing
+      tag-alias: testing
       images: ${{ needs.amd64.outputs.image }} ${{ needs.arm64.outputs.image }}

.github/workflows/build.yml

@@ -27,13 +27,12 @@ jobs:
   setup:
     runs-on: ubuntu-latest
     outputs:
-      tag-prefix: ${{ steps.release.outputs.tag-prefix }}
+      tag-prefix: ${{ steps.tag-prefix.outputs.tag-prefix }}
     steps:
     - uses: actions/checkout@v2
       with:
         ref: ${{ github.event.pull_request.head.sha || github.sha }}
-    - id: release
-      if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+    - id: tag-prefix
       run:
         count="$(git rev-list HEAD --count --first-parent)"
         echo "tag-prefix=v${count}-" >> $GITHUB_OUTPUT

.github/workflows/manifest.yml

@@ -10,6 +10,10 @@ on:
         description: 'Tag to use as the manifest list image name'
         type: 'string'
         required: true
+      tag-alias:
+        description: 'Tag to alias to the tag of the manifest, e.g. "latest"'
+        type: 'string'
+        required: true
       images:
         description: 'Space separated list of images to include in the manifest list'
         type: 'string'
@@ -22,6 +26,7 @@ on:
 env:
   HEAD_SHA: ${{ github.event.pull_request.head.sha || github.sha }}
   IMAGE: ${{ format('{0}/{1}:{2}', secrets.DOCKERHUB_TOKEN && 'docker.io' || 'ghcr.io', github.repository, github.event_name == 'pull_request' && format('pr-{0}-{1}', github.event.pull_request.number, inputs.tag) || inputs.tag) }}
+  IMAGE_ALIAS: ${{ format('{0}/{1}:{2}', secrets.DOCKERHUB_TOKEN && 'docker.io' || 'ghcr.io', github.repository, github.event_name == 'pull_request' && format('pr-{0}-{1}', github.event.pull_request.number, inputs.tag-alias) || inputs.tag-alias) }}
   REGISTRY: ${{ secrets.DOCKERHUB_TOKEN && 'docker.io' || 'ghcr.io' }}
 
 jobs:
@@ -53,6 +58,8 @@ jobs:
         docker manifest create ${{ env.IMAGE }} ${{ inputs.images }}
     - run: |
         docker manifest push ${{ env.IMAGE }}
+    - run: |
+        docker buildx imagetools create -t ${{ env.IMAGE_ALIAS }} ${{ env.IMAGE }}
     - uses: actions/github-script@v5
       with:
         script: |