Create docker-image.yml

.github/workflows/docker-image.yml

+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    -
+      name: Login to Docker Hub
+      uses: docker/login-action@2.1.0
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    -
+      name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@2.5.0
+    -
+      name: Build and push
+      uses: docker/build-push-action@v4
+      with:
+        context: .
+        file: ./Dockerfile
+        push: true
+        tags: ${{ secrets.DOCKERHUB_USERNAME }}/doml-model-checker:latest