add publish workflow

.gitea/workflows/publish.yaml

@@ -0,0 +1,26 @@
+name: Build and publish Image
+run-name: ${{ gitea.actor }} is building py-eagle-mqtt image
+on:
+  push:
+    tags:
+      - '*'
+    branches:
+      - '*'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Build Docker image
+      run: docker build -t harbor.evanshome.io/library/py-eagle-mqtt:latest ./Docker/
+
+    - name: Login to Harbor
+      run: docker login -u ${{ secrets.HARBOR_USERNAME }} -p ${{ secrets.HARBOR_PASSWORD }} harbor.evanshome.io
+
+    - name: Push Docker image to Harbor
+      run: docker push harbor.evanshome.io/library/py-eagle-mqtt:latest
+