Merge pull request #827 from yiannistri/766-nightly

ci: Push nightly images to ghcr.io

.github/workflows/nightly-publish.yaml

@@ -9,3 +9,26 @@ jobs:
     with:
       operator_name: aks-operator
       operator_commit: ${{ github.sha }}
+
+  publish_images:
+    permissions:
+      packages: write # Required for pushing images to ghcr.io
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Login to GHCR registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@6524bf65af31da8d45b59e8c27de4bd072b392f5 # v3.8.0
+      - name: Set image tag
+        run: echo "TAG=$(date +'%Y%m%d')" >> "$GITHUB_ENV"
+      - name: Build and push image
+        env:
+          REPO: ghcr.io/rancher
+        run: |
+          make image-push