Add a CI example

Signed-off-by: Leonardo Held <[email protected]>

Author: leonheldattoradex

.github/workflows/build.yml

@@ -0,0 +1,56 @@
+name: Build and Push Docker Images
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    permissions:
+      packages: write
+      contents: read
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and Push Debian Image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.debian
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/myapp-debian:latest
+
+      - name: Build and Push Alpine Image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.alpine
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/myapp-alpine:latest
+
+      - name: Build and Push Distroless Image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.distroless
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/myapp-distroless:latest
+