Staging build workflow

.github/workflows/publish-docker-image-staging-on-demand.yml

@@ -0,0 +1,75 @@
+name: Publish Docker image to staging on demand
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - staging
+    paths-ignore:
+      - 'CHANGELOG.md'
+      - '**/README.md'
+      - 'docker-compose/*'
+env:
+  OTP_VERSION: '25.2.1'
+  ELIXIR_VERSION: '1.14.5'
+  RELEASE_VERSION: 5.3.2
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    outputs:
+      release-version: ${{ steps.output-step.outputs.release-version }}
+      short-sha: ${{ steps.output-step.outputs.short-sha }}
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: blockscout/blockscout-staging
+
+      - name: Add SHORT_SHA env property with commit short sha
+        run: echo "SHORT_SHA=`echo ${GITHUB_SHA} | cut -c1-8`" >> $GITHUB_ENV
+
+      - name: Add outputs
+        run: |
+          echo "::set-output name=release-version::${{ env.NEXT_RELEASE_VERSION }}"
+          echo "::set-output name=short-sha::${{ env.SHORT_SHA }}"
+        id: output-step
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./docker/Dockerfile
+          push: true
+          cache-from: type=registry,ref=blockscout/blockscout:buildcache
+          cache-to: type=registry,ref=blockscout/blockscout:buildcache,mode=max
+          tags: blockscout/blockscout-staging:latest, blockscout/blockscout-staging:${{ env.RELEASE_VERSION }}.commit.${{ env.SHORT_SHA }}
+          build-args: |
+            CACHE_EXCHANGE_RATES_PERIOD=
+            API_V1_READ_METHODS_DISABLED=false
+            DISABLE_WEBAPP=false
+            API_V1_WRITE_METHODS_DISABLED=false
+            CACHE_TOTAL_GAS_USAGE_COUNTER_ENABLED=
+            ADMIN_PANEL_ENABLED=false
+            DECODE_NOT_A_CONTRACT_CALLS=false
+            MIXPANEL_URL=
+            MIXPANEL_TOKEN=
+            AMPLITUDE_URL=
+            AMPLITUDE_API_KEY=
+            CACHE_ADDRESS_WITH_BALANCES_UPDATE_INTERVAL=
+            BLOCKSCOUT_VERSION=v${{ env.RELEASE_VERSION }}-beta.+commit.${{ env.SHORT_SHA }}
+            RELEASE_VERSION=${{ env.RELEASE_VERSION }}