create a dummy app just for faster integration test

src/test-app/.devcontainer.json

@@ -0,0 +1,8 @@
+{
+  "name": "test-app",
+  "dockerComposeFile": "docker-compose.yaml",
+  "service": "app",
+  "shutdownAction": "none",
+  "workspaceFolder": "/workspace",
+  "remoteUser": "root"
+}

src/test-app/README.md

@@ -0,0 +1,43 @@
+# test-app
+
+Integration test-only custom Workbench application based on docker/getting-started.
+
+
+## Configuration
+
+- **Image**: docker/getting-started
+- **Port**: 8001
+- **User**: root
+- **Home Directory**: /root
+
+## Access
+
+Once deployed in Workbench, access your terminal at the app URL (port 80).
+
+For local testing:
+1. Create Docker network: `docker network create app-network`
+2. Run the app: `devcontainer up --workspace-folder .`
+3. Access at: `http://localhost:8001`
+
+## Customization
+
+Edit the following files to customize your app:
+
+- `.devcontainer.json` - Devcontainer configuration and features
+- `docker-compose.yaml` - Docker Compose configuration (change the `command` to customize ttyd options)
+- `devcontainer-template.json` - Template options and metadata
+
+## Testing
+
+To test this app template:
+
+```bash
+cd test
+./test.sh test-app
+```
+
+## Usage
+
+1. Create app and select custom
+2. Specify https://github.com/verily-src/workbench-app-devcontainers.git and branch `master` and src/test-app
+

src/test-app/devcontainer-template.json

@@ -0,0 +1,20 @@
+{
+  "id": "test-app",
+  "version": "1.0.0",
+  "name": "test-app",
+  "description": "Custom Workbench app: test-app (Image: docker/getting-started, Port: 80, User: root)",
+  "options": {
+    "cloud": {
+      "type": "string",
+      "enum": ["gcp", "aws"],
+      "default": "gcp",
+      "description": "Cloud provider (gcp or aws)"
+    },
+    "login": {
+      "type": "string",
+      "description": "Whether to log in to workbench CLI",
+      "proposals": ["true", "false"],
+      "default": "false"
+    }
+  }
+}

src/test-app/docker-compose.yaml

@@ -0,0 +1,36 @@
+services:
+  app:
+    # The container name must be "application-server"
+    container_name: "application-server"
+    # This can be either a pre-existing image or built from a Dockerfile
+    image: "docker/getting-started"
+    # build:
+    #   context: .
+    restart: always
+    volumes:
+      - .:/workspace:cached
+      - work:/root/work
+    # The port specified here will be forwarded and accessible from the
+    # Workbench UI.
+    ports:
+      - 8001:80
+    # The service must be connected to the "app-network" Docker network
+    networks:
+      - app-network
+    # SYS_ADMIN and fuse are required to mount workspace resources into the
+    # container.
+    cap_add:
+      - SYS_ADMIN
+    devices:
+      - /dev/fuse
+    security_opt:
+      - apparmor:unconfined
+
+volumes:
+  work:
+
+networks:
+  # The Docker network must be named "app-network". This is an external network
+  # that is created outside of this docker-compose file.
+  app-network:
+    external: true