docker-update actions workflow

.github/workflows/docker-update.yml

@@ -0,0 +1,27 @@
+name: Update Docker
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check Out Repo
+      uses: actions/checkout@v2
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+    - name: Build and Push Docker Image
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ./docker/Dockerfile
+        push: true
+        tags: tkchafin/autostreamtree:latest,tkchafin/autostreamtree:${{ github.event.release.tag_name }}
+