return docker build for frontend and backend code outside in CI

Previously we built a Docker image just for the test,
but the introduction of multi-arch build in 9fbf0952
build also meant the push of the image, so it was
restricted only to the master branch.
This change re-introduces the Docker image build
outside the master branch, which is helpful
in pull requests.

We recently had a few frontend PRs which broke
the Docker image build silently, and that change
prevents it from happening.

.github/workflows/ci-build.yml

@@ -39,6 +39,20 @@ jobs:
       - name: available platforms
         run: echo ${{ steps.buildx.outputs.platforms }}
 
+      - name: build docker image without pushing (only outside master)
+        if: ${{ github.ref != 'refs/heads/master' }}
+        run: |
+          docker buildx build \
+              --build-arg SKIP_BACKEND_TEST=true --build-arg SKIP_FRONTEND_TEST=true \
+              --platform linux/amd64 .
+
+      - name: build example docker image without pushing (only outside master)
+        if: ${{ github.ref != 'refs/heads/master' }}
+        run: |
+          docker buildx build \
+              --build-arg SKIP_BACKEND_TEST=true --build-arg SKIP_FRONTEND_TEST=true \
+              --platform linux/amd64 -f backend/_example/memory_store/Dockerfile .
+
       - name: build and deploy master image to ghcr.io and dockerhub
         if: ${{ github.ref == 'refs/heads/master' }}
         env:

.github/workflows/ci-site.yml

@@ -44,7 +44,7 @@ jobs:
           echo GITHUB_REF - $ref
           echo ${GITHUB_PACKAGE_TOKEN} | docker login ghcr.io -u ${USERNAME} --password-stdin
           docker buildx build --push --no-cache --platform linux/amd64,linux/arm/v7,linux/arm64 \
-            -t ghcr.io/${USERNAME}/remark24-site:${ref} .
+            -t ghcr.io/${USERNAME}/remark42-site:${ref} .
 
       - name: deploy tagged (latest) to ghcr.io and dockerhub
         if: ${{ startsWith(github.ref, 'refs/tags/') }}
@@ -59,7 +59,7 @@ jobs:
           echo "GITHUB_REF=$ref, GITHUB_SHA=${GITHUB_SHA}"
           echo ${GITHUB_PACKAGE_TOKEN} | docker login ghcr.io -u ${USERNAME} --password-stdin
           docker buildx build --push --no-cache --platform linux/amd64,linux/arm/v7,linux/arm64 \
-            -t ghcr.io/${USERNAME}/remark24-site:${ref} -t ghcr.io/${USERNAME}/remark24-site:latest .
+            -t ghcr.io/${USERNAME}/remark42-site:${ref} -t ghcr.io/${USERNAME}/remark42-site:latest .
 
       - name: remote site deployment from master
         if: ${{ github.ref == 'refs/heads/master' }}