Add github action to build Docker image

Author: Conradowatz

.github/workflows/docker-build.yml

@@ -0,0 +1,28 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "main" ]
+    tags:
+      - v**
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: DOcker meta
+      uses: docker/metadata-action@v5
+      with:
+        images: tls-attacker/anvil-web
+    - name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: false
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}