Add Docker Hub upload

.github/workflows/docker-image.yml

@@ -8,11 +8,23 @@ on:
 
 jobs:
 
-  build:
-
+  build-and-push-docker:
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v3
-    - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag devolo-cockpit:$(date +%s)
+      - name: Check Out Repository
+        uses: actions/checkout@v2
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and Push Docker Image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: slompies/homelab:devolo-cockpit:$(date +%s)
+