Fix docker publish (#1027)

Fixes docker build for #884

.github/workflows/update_docker_ci.yml

@@ -4,17 +4,13 @@ on:
     branches: [develop]
     paths:
       - 'docker/ci/**'
+      - .github/workflows/update_docker_ci.yml
   workflow_dispatch:
 
 jobs:
-  build:
-    strategy:
-      matrix:
-        target_platform: [linux/amd64, linux/arm64]
+  build_and_push:
     name: Build and push docker image
     runs-on: ubuntu-20.04
-    env:
-      DOCKERHUB_REPO: rippleci
     steps:
       - name: Login to DockerHub
         uses: docker/login-action@v3
@@ -23,14 +19,21 @@ jobs:
           password: ${{ secrets.DOCKERHUB_PW }}
 
       - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-buildx-action@v3
+      - uses: docker/metadata-action@v5
+        id: meta
+        with:
+          images: rippleci/clio_ci
+          tags: |
+            type=raw,value=latest
+            type=raw,value=${{ env.GITHUB_SHA }}
 
-      - name: Build image
-        shell: bash
-        run: |
-          cd docker/ci
-          docker build . -t clio_ci --progress=plain --platform=${{ matrix.target_platform }}
-          for tag in "$GITHUB_SHA" "latest" ; do
-            docker tag clio_ci ${DOCKERHUB_REPO}/clio_ci:${tag}
-            docker push ${DOCKERHUB_REPO}/clio_ci:${tag}
-          done
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: ${{ github.workspace }}/docker/ci
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}