Group log lines and make the output less verbose

Dockerfile

@@ -5,8 +5,10 @@ RUN apk update \
   && apk -a info curl \
   && apk add curl
 
-# these two are passed as build args and stored as env variables
+# these two are passed as build args
 ARG BUILD_DATE
 ARG GITHUB_SHA
 
+ENV GITHUB_SHA=$GITHUB_SHA
+
 RUN env | sort

action.yml

@@ -32,47 +32,42 @@ runs:
       shell: bash
       env:
         GITHUB_TOKEN: ${{ inputs.github_token }}
+        DOCKER_BUILDKIT: 1
+        DOCKER_IO_TOKEN: ${{ inputs.docker_io_token }}
+
       run: |
+        echo "::group::Logging into the GitHub Container registry (ghcr.io) ..."
         echo "${GITHUB_TOKEN}" | docker login ghcr.io -u "${{ github.actor }}" --password-stdin
+        echo "::endgroup::"
 
-    - name: Set commit tag and image name
-      shell: bash
-      run: |
+        echo "::group::Set commit tag and image name"
         if [ "${{ github.event_name }}" = "release" ]; then
           export COMMIT_TAG=${GITHUB_REF:10}
-          # export COMMIT_TAG=v2.3.0 # debug
-          echo "COMMIT_TAG=${COMMIT_TAG//v/}" >> $GITHUB_ENV # remove "v" suffix
+          export COMMIT_TAG=${COMMIT_TAG//v/}
         else
-          echo "COMMIT_TAG=latest" >> $GITHUB_ENV
+          export COMMIT_TAG=latest
         fi
 
-    - name: "Build the Docker image"
-      shell: bash
-      run: |
-        # expand commands
-        set -x
-
-        docker -v
+        echo "Tagging with ${COMMIT_TAG}"
+        echo "::endgroup::"
 
         export BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
         export GITHUB_URL=https://github.com/${{ github.repository }}
 
-        echo
-        echo "Building the Docker image: ${{ inputs.repository }}/${{ inputs.image_name }}:${{ env.COMMIT_TAG }} ..."
-        echo
+        echo "::group::Building the Docker image: ${{ inputs.repository }}/${{ inputs.image_name }}:${COMMIT_TAG} ..."
 
         # https://docs.docker.com/develop/develop-images/build_enhancements/
         # https://docs.docker.com/engine/reference/commandline/build/#specifying-external-cache-sources
-        DOCKER_BUILDKIT=1 \
-          docker build . \
+        docker build . \
+          --quiet \
           --cache-from ${{ inputs.repository }}/${{ inputs.image_name }}:latest \
           --build-arg BUILDKIT_INLINE_CACHE=1 \
           \
           --build-arg BUILD_DATE=${BUILD_DATE} \
           --build-arg GITHUB_SHA=${GITHUB_SHA} \
           \
-          --tag ${{ inputs.repository }}/${{ inputs.image_name }}:${{ env.COMMIT_TAG }} \
-          --tag docker.io/${{ inputs.image_name }}:${{ env.COMMIT_TAG }} \
+          --tag ${{ inputs.repository }}/${{ inputs.image_name }}:${COMMIT_TAG} \
+          --tag docker.io/${{ inputs.image_name }}:${COMMIT_TAG} \
           \
           --label org.label-schema.build-date=${BUILD_DATE} \
           --label org.label-schema.vcs-url=${GITHUB_URL} \
@@ -81,44 +76,37 @@ runs:
           --label org.opencontainers.image.created=${BUILD_DATE} \
           --label org.opencontainers.image.source=${GITHUB_URL} \
           --label org.opencontainers.image.revision=${GITHUB_SHA}
-
-        echo
-        echo "Inspecting the image ..."
-        echo
 
+        echo "::endgroup::"
+
+        echo "::group::Inspecting the image ..."
         docker images
-        docker image inspect ${{ inputs.repository }}/${{ inputs.image_name }}:${{ env.COMMIT_TAG }} | jq '.[].Config.Labels'
 
-    - name: "Push the Docker image to ghcr.io"
-      shell: bash
-      run: |
-        # expand commands
+        echo "Labels:"
+        docker image inspect ${{ inputs.repository }}/${{ inputs.image_name }}:${COMMIT_TAG} | jq '.[].Config.Labels'
+
+        echo "Env variables:"
+        docker image inspect ${{ inputs.repository }}/${{ inputs.image_name }}:${COMMIT_TAG} | jq '.[].Config.Env'
+
+        echo "::endgroup::"
+
+        echo "::group::Pushing the Docker image to ${{ inputs.repository }} ..."
+
         set -x
-
-        echo
-        echo "Pushing the Docker image to ghcr.io ..."
-        echo
+        docker push --quiet ${{ inputs.repository }}/${{ inputs.image_name }}:${COMMIT_TAG}
+        set +x
 
-        docker push ${{ inputs.repository }}/${{ inputs.image_name }}:${{ env.COMMIT_TAG }}
+        echo "::endgroup::"
 
-    - name: "Push the Docker image to docker.io"
-      shell: bash
-      env:
-        DOCKER_TOKEN: ${{ inputs.docker_io_token }}
-      run: |
-        if [ -z "${DOCKER_TOKEN}" ]; then
-          echo
-          echo "NOT pushing the Docker image to docker.io ... Provide 'docker_io_token' if needed."
-          echo
+        if [ -z "${DOCKER_IO_TOKEN}" ]; then
+          echo "::warning::NOT pushing the Docker image to docker.io ... Provide 'docker_io_token' if needed."
         else
-          # expand commands
-          set -x
+          echo "::group::Pushing the Docker image to docker.io ..."
+          echo "${DOCKER_IO_TOKEN}" | docker login docker.io -u "${{ github.actor }}" --password-stdin
 
-          echo
-          echo "Pushing the Docker image to docker.io ..."
-          echo
-
-          echo "${DOCKER_TOKEN}" | docker login docker.io -u "${{ github.actor }}" --password-stdin
+          set -x
+          docker push --quiet docker.io/${{ inputs.image_name }}:${COMMIT_TAG}
+          set +x
 
-          docker push docker.io/${{ inputs.image_name }}:${{ env.COMMIT_TAG }}
+          echo "::endgroup::"
         fi