publish sha1-tagged OCI

Author: rpardini

.github/workflows/master-latest.yml

@@ -36,7 +36,7 @@ jobs:
           platforms: linux/amd64,linux/arm64
           pull: true
           push: true
-          tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest
+          tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest,ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.sha }}
           labels: |
             org.opencontainers.image.title=${{ github.event.repository.name }}
             org.opencontainers.image.description=${{ github.event.repository.description }}