Add GitHub Actions workflow for automated Docker Hub deployment

Co-authored-by: snow-jallen <42281341+snow-jallen@users.noreply.github.com>

.github/workflows/docker-deploy.yml

@@ -0,0 +1,28 @@
+name: Deploy to Docker Hub
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+    
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    
+    - name: Make build script executable
+      run: chmod +x ./build.sh
+    
+    - name: Build and push Docker image
+      run: ./build.sh -t -p

README.md

@@ -89,6 +89,29 @@ mermaid charts:
 remember expanded modules as well as scorll position
 
 
+## Automated Docker Hub Deployment
+
+This repository includes a GitHub Actions workflow that automatically builds and deploys Docker images to Docker Hub when code is pushed to the `main` branch.
+
+### Required Secrets
+
+To enable automated deployment, add the following secrets to your GitHub repository:
+
+- `DOCKERHUB_USERNAME`: Your Docker Hub username
+- `DOCKERHUB_TOKEN`: Your Docker Hub access token (not password)
+
+### How it works
+
+The workflow:
+1. Triggers on any push to the `main` branch
+2. Checks out the code
+3. Sets up Docker Buildx
+4. Authenticates to Docker Hub using the provided secrets
+5. Runs the existing `build.sh` script with tag and push flags to build and deploy the image
+
+The deployed image will be available at `alexmickelson/canvas_management` with appropriate version tags.
+
+
 ## Features
 - websocket server to watch file system for changes, notify frontend it should invalidate cache
     - files can be edited in any text editor on the computer and changes are reflected in real time on the site