{"task": {"agent_timeout": 3600, "task": "task_bretfisher_node_docker_good_defaults__root_and_health", "verifier_timeout": 1800, "instruction": "You are a backend development expert. Please inspect the backend project located in the current directory, determine its programming language and architectural style, and then complete the following code implementation and environment setup tasks.\n\nImplement the public liveness endpoints exposed by the Express application.\n\nRequirements\n1. The GET / handler must immediately return HTTP 200 with the exact plain text body \"Hello Docker World\\n\" so tooling can confirm the container is reachable.\n2. The GET /healthz handler must perform any lightweight logic needed to prove the process is running and then respond with HTTP 200. Its body should be plain text containing the words \"happy\" and \"healthy\" to satisfy Docker health checks.\n3. Both handlers should avoid any asynchronous work beyond what is needed to produce their responses and must not rely on database connectivity.\n4. Responses should be sent using Express' standard res.send API and should include a trailing newline to keep parity with existing tests and monitoring scripts.\nPlease locate the appropriate place in the project and apply the necessary modifications.\n\nAfter completing all source code implementation, create a Dockerfile for this project using the following example template as a reference (Python version):\n```\n# setup base\nFROM nikolaik/python-nodejs:python3.12-nodejs22-bullseye\nRUN apt-get update && apt-get install -y sqlite3\n\n# install dependencies and copy project files\nWORKDIR /app\nCOPY . /app/\nRUN python3 -m pip install -r requirements.txt\n\nENTRYPOINT [\"python3\", \"app.py\"]\n```\nNotes:\n1. Ensure that all required project dependencies are properly installed inside the image.\n2. The generated Dockerfile must successfully build and run the application.\n3. The Dockerfile must be created in the root directory of the backend project, i.e `/app/BretFisher_node-docker-good-defaults/Dockerfile`\n", "memory": "", "runnable": false, "difficulty": "hard", "language": "", "cpus": "", "instruction_truncated": false, "category": "Infrastructure", "compose": true, "has_solution": true, "oracle": null, "docker_image": "", "taskset": "abc-bench", "tags": []}, "runs": []}