ci(github-action): build a nightly docker image and push to Github …

…Container Registry

  ## what
  - Build a `nightly` docker image
  - Push docker image to Github Container Registry only when running on `development` branch

  ## how
  - Build docker image and use tag `nightly`
  - change Label for `org.opencontainers.image.version` to `nightly`

  ## why
  - check issue #310

  ## where
  - .github/workflows/build.yaml

  ## usage

.github/workflows/build.yaml

@@ -179,9 +179,36 @@ jobs:
             org.opencontainers.image.source=https://github.com/${{ github.repository }}
             org.opencontainers.image.version=${{ env.NEXT_VERSION }}
 
+      # adding a duplicate run for building docker image is because,
+      # the nightly build will have a different value for the label `org.opencontainers.image.version`
+      - name: Build `nightly` docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ./dockerfile
+          pull: true
+          load: true
+          tags: |
+            ${{ env.GHCR_IMAGE }}:nightly
+          # cache-from: type=local,src=/tmp/.buildx-cache
+          # cache-to: type=local,dest=/tmp/.buildx-cache,mode=max
+          labels: |
+            org.opencontainers.image.authors=${{ github.repository_owner }}
+            org.opencontainers.image.created=${{ env.BUILD_DATE }}
+            org.opencontainers.image.description=Created from commit ${{ env.GIT_SHA }} and ref ${{ env.GIT_REF }}
+            org.opencontainers.image.ref.name=${{ env.GIT_REF }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.source=https://github.com/${{ github.repository }}
+            org.opencontainers.image.version=nightly
+
+
       - name: View current docker images
         run: docker images
 
+      - name: Push `nightly` Docker image to Github Container Registry
+        if: github.ref == 'refs/heads/development'
+        run: docker push ${{ env.GHCR_IMAGE }}:nightly
+
       - name: Push Docker images to GitHub Container Registry
         # only push if on master branch AND there's a new version to push
         if: steps.get-next-version.outputs.new-release-published == 'true'