Merge pull request #4 from subspace/ci-workflow-docker

add docker build for backend image

.github/workflows/deploy-subspace.yml

@@ -0,0 +1,79 @@
+name: Deploy from subspace-backend branch
+
+on:
+  push:
+    branches:
+      - "!main"
+  pull_request:
+    branches:
+      - subspace-backend
+
+env:
+  TAG_NAME: subspace
+  OTP_VERSION: "25.2.1"
+  ELIXIR_VERSION: "1.14.3"
+
+# concurrency:
+#   group: ${{ github.workflow }}-${{ github.ref }}
+#   cancel-in-progress: true
+
+jobs:
+  publish_image:
+    name: Publish Docker image
+    env:
+      RELEASE_VERSION: 5.2.3
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      # Will automatically make nice tags, see the table here https://github.com/docker/metadata-action#basic
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ghcr.io/subspace/blockscout-backend
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Add SHORT_SHA env property with commit short sha
+        run: echo "SHORT_SHA=`echo ${GITHUB_SHA} | cut -c1-8`" >> $GITHUB_ENV
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ./docker/Dockerfile
+          push: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          tags: ghcr.io/${{ github.repository_owner }}/blockscout-backend:${{ env.TAG_NAME }}
+          platforms: |
+            linux/arm64
+            linux/amd64
+          build-args: |
+            CACHE_EXCHANGE_RATES_PERIOD=
+            API_V1_READ_METHODS_DISABLED=false
+            DISABLE_WEBAPP=false
+            API_V1_WRITE_METHODS_DISABLED=false
+            CACHE_TOTAL_GAS_USAGE_COUNTER_ENABLED=
+            ADMIN_PANEL_ENABLED=false
+            DECODE_NOT_A_CONTRACT_CALLS=false
+            MIXPANEL_URL=
+            MIXPANEL_TOKEN=
+            AMPLITUDE_URL=
+            AMPLITUDE_API_KEY=
+            CACHE_ADDRESS_WITH_BALANCES_UPDATE_INTERVAL=
+            BLOCKSCOUT_VERSION=v${{ env.RELEASE_VERSION }}-beta
+            RELEASE_VERSION=${{ env.RELEASE_VERSION }}