fix: resolve Docker entrypoint error on Windows by enforcing LF line endings for shell scripts

.gitattributes

@@ -0,0 +1,2 @@
+# Ensure shell scripts always use LF line endings
+entrypoint.sh text eol=lf

.github/workflows/docker-publish.yml

@@ -0,0 +1,60 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "master", "main" ]
+    tags:
+      - 'v*'
+  pull_request:
+    branches: [ "master", "main" ]
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha,prefix={{branch}}-
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          platforms: linux/amd64,linux/arm64

README.md

@@ -59,13 +59,36 @@ bun install
 
 ## Using with Docker
 
-Build image
+### Using Pre-built Image from GitHub Container Registry
+
+You can pull and run the pre-built image directly from GitHub Container Registry:
+
+```sh
+# Pull the latest image
+docker pull ghcr.io/ericc-ch/copilot-api:latest
+
+# Create a directory on your host to persist the GitHub token and related data
+mkdir -p ./copilot-data
+
+# Run the container with a bind mount to persist the token
+docker run -p 4141:4141 -v $(pwd)/copilot-data:/root/.local/share/copilot-api ghcr.io/ericc-ch/copilot-api:latest
+```
+
+Available tags:
+- `latest` - Latest build from the master branch
+- `v*.*.*` - Specific version tags (e.g., `v1.0.0`)
+- `master` - Latest master branch build
+- `<sha>` - Specific commit builds
+
+### Building Locally
+
+Build image from source:
 
 ```sh
 docker build -t copilot-api .
 ```
 
-Run the container
+Run the locally built container:
 
 ```sh
 # Create a directory on your host to persist the GitHub token and related data
@@ -97,6 +120,24 @@ docker run -p 4141:4141 -e GH_TOKEN=your_token copilot-api start --verbose --por
 
 ### Docker Compose Example
 
+Using pre-built image:
+
+```yaml
+version: "3.8"
+services:
+  copilot-api:
+    image: ghcr.io/ericc-ch/copilot-api:latest
+    ports:
+      - "4141:4141"
+    environment:
+      - GH_TOKEN=your_github_token_here
+    volumes:
+      - ./copilot-data:/root/.local/share/copilot-api
+    restart: unless-stopped
+```
+
+Or building from source:
+
 ```yaml
 version: "3.8"
 services:
@@ -106,6 +147,8 @@ services:
       - "4141:4141"
     environment:
       - GH_TOKEN=your_github_token_here
+    volumes:
+      - ./copilot-data:/root/.local/share/copilot-api
     restart: unless-stopped
 ```