[docker][chore] Backport workflow_dispatch logic to single image

.github/workflows/docker-build.yml

@@ -21,9 +21,11 @@ jobs:
 
     steps:
       - name: Check out repository
+        if: github.event_name != 'workflow_dispatch'
         uses: actions/checkout@v2
 
       - name: Set build platforms
+        if: github.event_name != 'workflow_dispatch'
         id: platform
         run: |
           GITHUB_REF="${{ github.ref }}"
@@ -41,6 +43,7 @@ jobs:
           fi
 
       - name: Docker meta
+        if: github.event_name != 'workflow_dispatch'
         id: meta
         uses: docker/metadata-action@v3
         with:
@@ -61,17 +64,10 @@ jobs:
             org.opencontainers.image.vendor=Some Engineering Inc.
 
       - name: Set up Docker Buildx
+        if: github.event_name != 'workflow_dispatch'
         id: buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Cache Docker layers
-        uses: actions/cache@v2
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-${{ secrets.CACHE_VERSION }}-buildx-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-${{ secrets.CACHE_VERSION }}-buildx-
-
       - name: Log in to Docker Hub
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v1
@@ -80,14 +76,15 @@ jobs:
           password: ${{ secrets.DOCKERHUB_PASS }}
 
       - name: Log in to GitHub Container Registry
-        if: github.event_name != 'pull_request'
+        if: github.event_name != 'pull_request' && github.event_name != 'workflow_dispatch'
         uses: docker/login-action@v1
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push Docker image
+        if: github.event_name != 'workflow_dispatch'
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -100,13 +97,6 @@ jobs:
             TESTS=false
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=local,src=/tmp/.buildx-cache
-          cache-to: type=local,dest=/tmp/.buildx-cache-new
-
-      - name: Move cache
-        run: |
-          rm -rf /tmp/.buildx-cache
-          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
 
   split-build:
     name: Build split Docker images