Add workflow

.github/workflows/images.yml

@@ -0,0 +1,43 @@
+name: images
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  pull_request_target:
+    types: [labeled]
+  schedule:
+    - cron: '0 5 * * *'
+  workflow_dispatch:
+
+env:
+  REGISTRY_IMAGE: ghcr.io/markentier/utilities
+
+jobs:
+  utilities:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+
+      - run: docker version
+      - run: docker info
+      - run: docker system df -v
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      -
+        name: Login to GitHub Container Registry (ghcr.io)
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_PAT }}
+      -
+        name: Build and push
+        run: make all.ghcr BUILDX_FLAGS="--cache-from=type=gha --cache-to=type=gha"