Add GitHub Actions workflow for building and pushing Docker images (#6)

* Add GitHub Actions workflow for caching npm dependencies and building and pushing Docker images

.github/workflows/docker-build-and-push.yml

@@ -0,0 +1,84 @@
+name: Build and Push Docker Images
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*.*.*'
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.22
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Run Go tests
+        run: go test ./...
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20
+
+      - name: Cache npm dependencies
+        uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: Install frontend dependencies
+        run: npm install
+        working-directory: web-app
+
+      - name: Run frontend tests
+        run: npm test
+        working-directory: web-app
+
+  build-and-push:
+    runs-on: ubuntu-latest
+    needs: test
+    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.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Build and push Docker images
+        id: docker_build
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          tags: |
+            icereed/paperless-gpt:unreleased
+            ${{ github.ref == 'refs/heads/main' && 'icereed/paperless-gpt:unreleased' }}
+            ${{ github.ref_type == 'tag' && 'icereed/paperless-gpt:latest' }}
+            ${{ github.ref_type == 'tag' && 'icereed/paperless-gpt:${{ github.ref_name }}' }}

web-app/package.json

@@ -7,7 +7,8 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "echo \"TODO\""
   },
   "dependencies": {
     "@headlessui/react": "^2.1.8",