add tag

Author: mystster

.github/workflows/build_PR.yml

@@ -145,6 +145,15 @@ jobs:
       - name: Prepare
         id: prep
         run: |
+          VERSION=edge
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          elif [[ $GITHUB_REF == refs/heads/* ]]; then
+            VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
+          elif [[ $GITHUB_REF == refs/pull/* ]]; then
+            VERSION=pr-${{ github.event.number }}
+          fi
+          echo ::set-output name=version::${VERSION}
           echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
       - name: build image and push to GitHub Container Registry
         uses: docker/build-push-action@v2
@@ -153,6 +162,7 @@ jobs:
           context: images
           tags: |
             ${{ env.registry }}/${{ github.repository_owner }}/${{ env.image }}:latest
+            ${{ env.registry }}/${{ github.repository_owner }}/${{ env.image }}:${{ steps.prep.outputs.version }}
             ${{ env.registry }}/${{ github.repository_owner }}/${{ env.image }}:${{needs.Prepare.outputs.BRANCH}}-latest
             ${{ env.registry }}/${{ github.repository_owner }}/${{ env.image }}:${{needs.Prepare.outputs.TAG_NAME}}
           labels: |