trying a docker action workflow

Added Docker secrets so hopefully it will run now.

.github/workflows/docker-image.yml

@@ -0,0 +1,28 @@
+name: Docker Image CI
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Log in to DockerHub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Build the Docker image
+        id: build-image
+        run: |
+          IMAGE_TAG=my-image-name:${{ github.sha }}
+          docker build . --file Dockerfile --tag $IMAGE_TAG
+          echo "IMAGE_TAG=$IMAGE_TAG" >> $GITHUB_ENV
+# Uncomment below to push the image to Docker Hub (or another registry)
+#- name: Push the Docker image