Merge pull request #1695 from mion00/ci/docker_latest_tag

ci(build-deploy.yml): correctly set Docker latest tag only on release versions

.github/workflows/build-deploy.yml

@@ -134,6 +134,21 @@ jobs:
         uses: docker/metadata-action@v4.3.0
         with:
           images: ${{ env.IMAGE_NAME }}
+          # Customize the generation of Docker `latest` tag
+          # Tag with `latest` the git tags that do not have a "pre-release" component in the end (e.g. `3.0.0`)
+          # Avoid tagging with `latest` the git tag that have a "pre-release" component in the end (e.g. `3.0.0b1`)
+          # If no git tag, fallback to branch or PR name
+          tags: |
+            # If the git tag follows PEP440 conventions, use it as the resulting docker tag (both releases and pre-releases)
+            type=pep440,pattern={{version}}
+
+            # If the git tag does NOT have a pre-release ending (e.g. `3.0.0`), it is a release version to be tagged as `latest`
+            type=match,value=latest,pattern=pattern=^\d\.\d+\.\d+$
+
+            # If no git tag is used, fallback to tagging with branch or PR name
+            type=ref,event=branch
+            type=ref,event=pr
+
       # Build and push Docker image with Buildx (push image only with a tag or push on `dev` branch)
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image