Add workflow

containers/.github/workflows/build.yml

@@ -0,0 +1,54 @@
+name: Build
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+    name: Build
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Github Packages
+        uses: docker/login-action@v1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Waterfall Docker image
+        uses: docker/build-push-action@v2
+        with:
+          context: waterfall
+          tags: ${{ env.REGISTRY }}/${{ IMAGE_NAME }}/waterfall:latest
+          # build on feature branches, push only on main branch
+          push: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: Build and push Paper Docker image
+        uses: docker/build-push-action@v2
+        with:
+          context: paper
+          tags: ${{ env.REGISTRY }}/${{ IMAGE_NAME }}/paper:latest
+          # build on feature branches, push only on main branch
+          push: ${{ github.ref == 'refs/heads/main' }}
+
+
+