Impl docker deploy workflow

Author: Haarolean

.github/workflows/docker-publish.yml

@@ -0,0 +1,26 @@
+name: build and push docker image
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: log in to docker hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_SECRET_TOKEN }}
+
+      - name: build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: roguepaws/nginx-spa:latest