[LAB-715] Also build backend container (#718)

Author: alabdao

.github/workflows/backend.yml

@@ -0,0 +1,56 @@
+# Workflow to build backend/gateway container
+---
+
+name: backend
+
+on:
+  push:
+    branches: ["main"]
+    paths-ignore:
+      - 'docs/**'
+      - 'infrastructure/**'
+
+  pull_request:
+    branches: ["main"]
+    paths-ignore:
+      - 'docs/**'
+      - 'infrastructure/**'
+
+# Only run one at a time
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: quay.io/labdao/backend
+  
+      - name: Login to quay.io
+        uses: docker/login-action@v3
+        with:
+          registry: quay.io
+          username: ${{ secrets.LABDAO_QUAY_USERNAME }}
+          password: ${{ secrets.LABDAO_QUAY_PASSWORD }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          cache-from: |
+            quay.io/labdao/backend:main
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}

.github/workflows/frontend.yml

@@ -68,6 +68,8 @@ jobs:
           NEXT_PUBLIC_IPFS_GATEWAY_ENDPOINT: ${{ matrix.backends.gateway }}
         uses: docker/build-push-action@v5
         with:
+          cache-from: |
+            quay.io/labdao/frontend:main-${{ matrix.backends.env }}
           build-args: |
             NEXT_PUBLIC_BACKEND_URL=${{ matrix.backends.url }}
             NEXT_PUBLIC_PRIVY_APP_ID