Create docker-build-push.yml

.github/workflows/docker-build-push.yml

@@ -0,0 +1,24 @@
+name: Build and Push to GHCR
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v2
+
+      - name: Log in to GitHub Container Registry
+        run: echo "${{ secrets.GHCR_PAT }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Build and push Docker image
+        run: |
+          docker build . -t ghcr.io/${{ github.repository_owner }}/app:latest
+          docker push ghcr.io/${{ github.repository_owner }}/app:latest