[ci] Add publish docker for eth-rpc (#6286)

close paritytech/ci_cd#1073

.github/workflows/build-publish-eth-rpc.yml

@@ -0,0 +1,79 @@
+name: Build and push ETH-RPC image
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review, labeled]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+env:
+  IMAGE_NAME: "docker.io/paritypr/eth-rpc"
+
+jobs:
+  set-variables:
+    # This workaround sets the container image for each job using 'set-variables' job output.
+    # env variables don't work for PR from forks, so we need to use outputs.
+    runs-on: ubuntu-latest
+    outputs:
+      VERSION: ${{ steps.version.outputs.VERSION }}
+    steps:
+      - name: Define version
+        id: version
+        run: |
+          export COMMIT_SHA=${{ github.sha }}
+          export COMMIT_SHA_SHORT=${COMMIT_SHA:0:8}
+          export REF_NAME=${{ github.ref_name }}
+          export REF_SLUG=${REF_NAME//\//_}
+          VERSION=${REF_SLUG}-${COMMIT_SHA_SHORT}
+          echo "VERSION=${REF_SLUG}-${COMMIT_SHA_SHORT}" >> $GITHUB_OUTPUT
+          echo "set VERSION=${VERSION}"
+
+  build_docker:
+    name: Build docker image
+    runs-on: parity-large
+    needs: [set-variables]
+    env:
+      VERSION: ${{ needs.set-variables.outputs.VERSION }}
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./substrate/frame/revive/rpc/Dockerfile
+          push: false
+          tags: |
+            ${{ env.IMAGE_NAME }}:${{ env.VERSION }}
+
+  build_push_docker:
+    name: Build and push docker image
+    runs-on: parity-large
+    if: github.ref == 'refs/heads/master'
+    needs: [set-variables]
+    env:
+      VERSION: ${{ needs.set-variables.outputs.VERSION }}
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.PARITYPR_DOCKERHUB_USERNAME }}
+          password: ${{ secrets.PARITYPR_DOCKERHUB_PASSWORD }}
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./substrate/frame/revive/rpc/Dockerfile
+          push: true
+          tags: |
+            ${{ env.IMAGE_NAME }}:${{ env.VERSION }}