Merge 5183a77f8a into f81a4ca008

.github/workflows/publish.yaml

@@ -0,0 +1,36 @@
+---
+name: Publish
+
+"on":
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          repository: getgrav/docker-grav
+
+      - name: Setup docker
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to docker registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Publish image
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          context: .
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/grav:latest