added ghcr pipeline

.github/workflows/publish-on-github-registry.yaml

@@ -0,0 +1,31 @@
+name: publish-on-github-registry
+
+on:
+  push:
+    branches:
+      - publish-github-registry
+
+jobs:
+  publish-on-github-registry:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      # - name: Extract Git Tag
+      #   id: extract_tag
+      #   run: echo "::set-output name=TAG::$(echo ${GITHUB_REF#refs/tags/})"
+
+      - name: Publish Docker image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/ref-card-02:${{ github.sha }} #${{ steps.extract_tag.outputs.TAG }}

README.md

@@ -14,6 +14,14 @@ Bei dieser Webanwendung teste ich dies mit `npm run build; npm run start` und ö
 
 4. Github actions einrichten
 
+## Pushen auf Github Registry
+
+### 1. Pipeline erstellen
+
+### 2. Github Actions secrets einrichten
+
+![secrets](./docs/add-github-secrets-ghcr.png)
+
 ## Pushen und Deployen auf AWS
 
 ### 1. AWS ECR repository erstellen