ci: push docker image on my own branch

.github/workflows/build_packages.yaml

@@ -529,14 +529,25 @@ jobs:
           org.opencontainers.image.otp.version=${{ matrix.otp }}
           org.opencontainers.image.elixir.version=${{ matrix.elixir }}
     - uses: docker/login-action@v1
-      if: github.event_name == 'release'
+      if: >
+        ${{ (github.event_name == 'release' && !github.event.release.prerelease)
+        || (github.event.repository.owner != 'emqx' && startsWith(github.ref_name, 'ci/')) }}
       with:
         username: ${{ secrets.DOCKER_HUB_USER }}
         password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+    - name: export os image from matrix.os
+      id: os-img
+      run: |
+        img=$(echo ${{ matrix.os }} | sed 's#\([0-9.]\+\)$#:\1#g')
+        echo "::set-output name=img::${img}"
+
     - uses: docker/build-push-action@v2
       if: ${{ matrix.build_elixir == 'no_elixir' }}
       with:
-        push: ${{ github.event_name == 'release' && !github.event.release.prerelease }}
+        push: >
+          ${{ (github.event_name == 'release' && !github.event.release.prerelease)
+          || (github.event.repository.owner != 'emqx' && startsWith(github.ref_name, 'ci/')) }}
         pull: true
         no-cache: true
         platforms: linux/${{ matrix.arch }}
@@ -544,7 +555,7 @@ jobs:
         labels: ${{ steps.meta.outputs.labels }}
         build-args: |
           BUILD_FROM=ghcr.io/emqx/emqx-builder/5.0-5:${{ matrix.elixir }}-${{ matrix.otp }}-${{ matrix.os }}
-          RUN_FROM=alpine:3.14
+          RUN_FROM=${{ steps.os-img.outputs.img }}
           EMQX_NAME=${{ matrix.profile }}
         file: source/deploy/docker/Dockerfile
         context: source
@@ -589,8 +600,12 @@ jobs:
 
   docker-push-multi-arch-manifest:
     # note, we only run on amd64
-    if: github.event_name == 'release'
-    needs: docker
+    if: >
+      (github.event_name == 'release' && !github.event.release.prerelease)
+      || (github.event.repository.owner != 'emqx' && startsWith(github.ref_name, 'ci/'))
+    needs:
+      - prepare
+      - docker
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -650,10 +665,10 @@ jobs:
 
       - name: update manifest for multiarch image
         if: matrix.arch == 'amd64'
+        working-directory: source
         run: |
           IsPushLatest=${{ github.event_name == 'release' && !github.event.release.prerelease }};
-          scripts/docker-create-push-manifest "${{ steps.meta.outputs.tags }}" "$IsPushLatest"
-
+          scripts/docker-create-push-manifests.sh "${{ steps.meta.outputs.tags }}" "$IsPushLatest"
 
   delete-artifact:
     runs-on: ubuntu-20.04