Image tag to lowercase

.github/workflows/main.yml

@@ -34,13 +34,21 @@ jobs:
 
  # Login against a Docker registry except on PR
  # https://github.com/docker/login-action
- # - name: Log into registry ${{ env.REGISTRY }}
- # if: github.event_name != 'pull_request'
- # uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
- # with:
- # registry: ${{ env.REGISTRY }}
- # username: ${{ github.actor }}
- # password: ${{ secrets.GITHUB_TOKEN }}
+ - name: Log into registry ${{ env.REGISTRY }}
+ if: github.event_name != 'pull_request'
+ uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
+ with:
+ registry: ${{ env.REGISTRY }}
+ username: ${{ github.actor }}
+ password: ${{ secrets.GITHUB_TOKEN }}
+
+ - name: Convert $IMAGE_TAG to lowercase
+ id: tag-to-lowercase
+ run: |
+ echo Converting ${{ env.IMAGE_TAG }} to lowercase...
+ IMAGE_TAG_LOWERCASE=$(echo "${{ env.IMAGE_TAG }}" | tr '[:upper:]' '[:lower:]')
+ echo "IMAGE_TAG in lowercase is $IMAGE_TAG_LOWERCASE"
+ echo "IMAGE_TAG_LOWERCASE=$IMAGE_TAG_LOWERCASE" >> $GITHUB_ENV
 
  # Build and push Docker image with Buildx (don't push on PR)
  # https://github.com/docker/build-push-action
@@ -51,7 +59,7 @@ jobs:
  context: ${{ env.DOCKERFILE_LOCATION }}
  file: ${{ env.DOCKERFILE_LOCATION }}/Dockerfile
  # push: ${{ github.event_name != 'pull_request' }}
- tags: ${{ env.IMAGE_TAG }}
+ tags: ${{ steps.tag-to-lowercase.outputs.IMAGE_TAG_LOWERCASE }}
 
  # Sign the resulting Docker image digest except on PRs.
  # This will only write to the public Rekor transparency log when the Docker
@@ -64,4 +72,4 @@ jobs:
  COSIGN_EXPERIMENTAL: "true"
  # This step uses the identity token to provision an ephemeral certificate
  # against the sigstore community Fulcio instance.
- run: echo "${{ env.IMAGE_TAG }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}
+ run: echo "${{ steps.tag-to-lowercase.outputs.IMAGE_TAG_LOWERCASE }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}