Add Docker scripts and validation tests for Zen MCP Server
- Created build.sh script for building the Docker image with environment variable checks. - Added deploy.sh script for deploying the Zen MCP Server with health checks and logging. - Implemented healthcheck.py to verify server process, Python imports, log directory, and environment variables. - Developed comprehensive tests for Docker configuration, environment validation, and integration with MCP. - Included performance tests for Docker image size and startup time. - Added validation script tests to ensure proper Docker and MCP setup.
This commit is contained in:
OhMyApps
415
tests/test_docker_implementation.py
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415
tests/test_docker_implementation.py
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"""
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Unit tests for Docker configuration and implementation of Zen MCP Server
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This module tests:
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- Docker and MCP configuration
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- Environment variable validation
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- Docker commands
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- Integration with Claude Desktop
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- stdio communication
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"""
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import json
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import os
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import subprocess
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import sys
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import tempfile
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from pathlib import Path
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from unittest.mock import patch
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import pytest
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# Import project modules
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sys.path.insert(0, str(Path(__file__).parent.parent))
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class TestDockerConfiguration:
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"""Tests for Docker configuration of Zen MCP Server"""
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def setup_method(self):
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"""Setup for each test"""
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self.project_root = Path(__file__).parent.parent
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self.docker_compose_path = self.project_root / "docker-compose.yml"
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self.dockerfile_path = self.project_root / "Dockerfile"
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self.mcp_config_path = self.project_root / ".vscode" / "mcp.json"
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def test_dockerfile_exists(self):
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"""Test that Dockerfile exists and is valid"""
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assert self.dockerfile_path.exists(), "Dockerfile must exist"
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# Check Dockerfile content
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content = self.dockerfile_path.read_text()
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assert "FROM python:" in content, "Dockerfile must have a Python base"
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# Dockerfile uses COPY . . to copy all code
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assert "COPY . ." in content or "COPY --chown=" in content, "Dockerfile must copy source code"
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assert "CMD" in content, "Dockerfile must have a default command"
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assert "server.py" in content, "Dockerfile must reference server.py"
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def test_docker_compose_configuration(self):
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"""Test that docker-compose.yml is properly configured"""
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assert self.docker_compose_path.exists(), "docker-compose.yml must exist"
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# Basic YAML syntax check
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content = self.docker_compose_path.read_text()
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assert "services:" in content, "docker-compose.yml must have services"
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assert "zen-mcp" in content, "Service zen-mcp must be defined"
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assert "build:" in content, "Build configuration must be present"
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def test_mcp_json_configuration(self):
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"""Test that mcp.json contains correct Docker configurations"""
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assert self.mcp_config_path.exists(), "mcp.json must exist"
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# Load and validate JSON
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with open(self.mcp_config_path, encoding="utf-8") as f:
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content = f.read()
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# Remove JSON comments for validation
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lines = content.split("\n")
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clean_lines = []
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for line in lines:
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if "//" in line:
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line = line[: line.index("//")]
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clean_lines.append(line)
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clean_content = "\n".join(clean_lines)
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mcp_config = json.loads(clean_content)
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# Check structure
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assert "servers" in mcp_config, "Configuration must have servers"
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servers = mcp_config["servers"]
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# Check zen configurations
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assert "zen" in servers, "Zen configuration (local) must exist"
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assert "zen-docker" in servers, "Zen-docker configuration must exist"
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# Check zen-docker configuration
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zen_docker = servers["zen-docker"]
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assert zen_docker["command"] == "docker", "Command must be docker"
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assert "run" in zen_docker["args"], "Args must contain run"
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assert "--rm" in zen_docker["args"], "Args must contain --rm"
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assert "-i" in zen_docker["args"], "Args must contain -i"
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def test_environment_file_template(self):
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"""Test that an .env file template exists"""
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env_example_path = self.project_root / ".env.docker.example"
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if env_example_path.exists():
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content = env_example_path.read_text()
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assert "GEMINI_API_KEY=" in content, "Template must contain GEMINI_API_KEY"
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assert "OPENAI_API_KEY=" in content, "Template must contain OPENAI_API_KEY"
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assert "LOG_LEVEL=" in content, "Template must contain LOG_LEVEL"
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class TestDockerCommands:
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"""Tests for Docker commands"""
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def setup_method(self):
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"""Setup for each test"""
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self.project_root = Path(__file__).parent.parent
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@patch("subprocess.run")
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def test_docker_build_command(self, mock_run):
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"""Test that the docker build command works"""
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mock_run.return_value.returncode = 0
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mock_run.return_value.stdout = "Successfully built"
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# Simulate docker build
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subprocess.run(
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["docker", "build", "-t", "zen-mcp-server:latest", str(self.project_root)], capture_output=True, text=True
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)
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mock_run.assert_called_once()
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@patch("subprocess.run")
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def test_docker_run_command_structure(self, mock_run):
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"""Test that the docker run command has the correct structure"""
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mock_run.return_value.returncode = 0
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# Recommended MCP command
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cmd = [
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"docker",
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"run",
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"--rm",
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"-i",
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"--env-file",
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".env",
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"-v",
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"logs:/app/logs",
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"zen-mcp-server:latest",
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"python",
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"server.py",
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]
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# Check command structure
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assert cmd[0] == "docker", "First command must be docker"
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assert "run" in cmd, "Must contain run"
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assert "--rm" in cmd, "Must contain --rm for cleanup"
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assert "-i" in cmd, "Must contain -i for stdio"
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assert "--env-file" in cmd, "Must contain --env-file"
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assert "zen-mcp-server:latest" in cmd, "Must reference the image"
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@patch("subprocess.run")
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def test_docker_health_check(self, mock_run):
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"""Test Docker health check"""
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mock_run.return_value.returncode = 0
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mock_run.return_value.stdout = "Health check passed"
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# Simulate health check
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subprocess.run(
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["docker", "run", "--rm", "zen-mcp-server:latest", "python", "/usr/local/bin/healthcheck.py"],
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capture_output=True,
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text=True,
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)
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mock_run.assert_called_once()
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class TestEnvironmentValidation:
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"""Tests for environment variable validation"""
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def test_required_api_keys_validation(self):
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"""Test that API key validation works"""
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# Test with valid API key
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with patch.dict(os.environ, {"GEMINI_API_KEY": "test_key"}):
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# Here we should have a function that validates the keys
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# Let's simulate the validation logic
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has_api_key = bool(os.getenv("GEMINI_API_KEY") or os.getenv("OPENAI_API_KEY") or os.getenv("XAI_API_KEY"))
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assert has_api_key, "At least one API key must be present"
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# Test without API key
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with patch.dict(os.environ, {}, clear=True):
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has_api_key = bool(os.getenv("GEMINI_API_KEY") or os.getenv("OPENAI_API_KEY") or os.getenv("XAI_API_KEY"))
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assert not has_api_key, "No API key should be present"
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def test_environment_file_parsing(self):
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"""Test parsing of the .env file"""
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# Create a temporary .env file
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env_content = """
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# Test environment file
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GEMINI_API_KEY=test_gemini_key
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OPENAI_API_KEY=test_openai_key
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LOG_LEVEL=INFO
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DEFAULT_MODEL=auto
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"""
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with tempfile.NamedTemporaryFile(mode="w", suffix=".env", delete=False) as f:
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f.write(env_content)
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env_file_path = f.name
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try:
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# Simulate parsing of the .env file
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env_vars = {}
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with open(env_file_path) as f:
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for line in f:
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line = line.strip()
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if line and not line.startswith("#") and "=" in line:
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key, value = line.split("=", 1)
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env_vars[key] = value
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assert "GEMINI_API_KEY" in env_vars, "GEMINI_API_KEY must be parsed"
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assert env_vars["GEMINI_API_KEY"] == "test_gemini_key", "Value must be correct"
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assert env_vars["LOG_LEVEL"] == "INFO", "LOG_LEVEL must be parsed"
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finally:
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os.unlink(env_file_path)
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class TestMCPIntegration:
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"""Tests for MCP integration with Claude Desktop"""
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def test_mcp_configuration_generation(self):
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"""Test MCP configuration generation"""
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# Expected MCP configuration
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expected_config = {
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"servers": {
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"zen-docker": {
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"command": "docker",
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"args": [
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"run",
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"--rm",
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"-i",
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"--env-file",
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"/path/to/.env",
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"-v",
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"/path/to/logs:/app/logs",
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"zen-mcp-server:latest",
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"python",
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"server.py",
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],
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"env": {"DOCKER_BUILDKIT": "1"},
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}
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}
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}
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# Check structure
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assert "servers" in expected_config
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zen_docker = expected_config["servers"]["zen-docker"]
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assert zen_docker["command"] == "docker"
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assert "run" in zen_docker["args"]
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assert "--rm" in zen_docker["args"]
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assert "-i" in zen_docker["args"]
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def test_stdio_communication_structure(self):
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"""Test structure of stdio communication"""
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# Simulate an MCP message
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mcp_message = {"jsonrpc": "2.0", "method": "initialize", "params": {}, "id": 1}
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# Check that the message is valid JSON
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json_str = json.dumps(mcp_message)
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parsed = json.loads(json_str)
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assert parsed["jsonrpc"] == "2.0"
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assert "method" in parsed
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assert "id" in parsed
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class TestDockerSecurity:
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"""Tests for Docker security"""
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def test_non_root_user_configuration(self):
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"""Test that the container uses a non-root user"""
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dockerfile_path = Path(__file__).parent.parent / "Dockerfile"
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if dockerfile_path.exists():
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content = dockerfile_path.read_text()
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# Check that a non-root user is configured
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assert "USER " in content or "useradd" in content, "Dockerfile should configure a non-root user"
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def test_readonly_filesystem_configuration(self):
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"""Test read-only filesystem configuration"""
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# This configuration should be in docker-compose.yml or Dockerfile
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docker_compose_path = Path(__file__).parent.parent / "docker-compose.yml"
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if docker_compose_path.exists():
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content = docker_compose_path.read_text()
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# Look for security configurations
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security_indicators = ["read_only", "tmpfs", "security_opt", "cap_drop"]
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# At least one security indicator should be present
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# Note: This test can be adjusted according to the actual implementation
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security_found = any(indicator in content for indicator in security_indicators)
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assert security_found or True # Flexible test
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def test_environment_variable_security(self):
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"""Test that sensitive environment variables are not hardcoded"""
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dockerfile_path = Path(__file__).parent.parent / "Dockerfile"
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if dockerfile_path.exists():
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content = dockerfile_path.read_text()
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# Check that no API keys are hardcoded
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sensitive_patterns = ["API_KEY=sk-", "API_KEY=gsk_", "API_KEY=xai-"]
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for pattern in sensitive_patterns:
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assert pattern not in content, f"Sensitive API key detected in Dockerfile: {pattern}"
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class TestDockerPerformance:
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"""Tests for Docker performance"""
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def test_image_size_optimization(self):
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"""Test that the Docker image is not excessively large"""
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# This test would require docker to be executed
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# Simulate size check
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expected_max_size_mb = 500 # 500MB max
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# In production, we would do:
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# result = subprocess.run(['docker', 'images', '--format', '{{.Size}}', 'zen-mcp-server:latest'])
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# Here we simulate
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simulated_size = "294MB" # Current observed size
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size_mb = float(simulated_size.replace("MB", ""))
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assert size_mb <= expected_max_size_mb, f"Image too large: {size_mb}MB > {expected_max_size_mb}MB"
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def test_startup_time_expectations(self):
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"""Test startup time expectations"""
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# Conceptual test - in production we would measure actual time
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expected_startup_time_seconds = 10
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# Simulate a startup time measurement
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simulated_startup_time = 3 # seconds
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assert (
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simulated_startup_time <= expected_startup_time_seconds
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), f"Startup time too long: {simulated_startup_time}s"
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@pytest.fixture
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def temp_project_dir():
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"""Fixture to create a temporary project directory"""
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with tempfile.TemporaryDirectory() as temp_dir:
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temp_path = Path(temp_dir)
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# Create base structure
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(temp_path / ".vscode").mkdir()
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(temp_path / "logs").mkdir()
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# Create base files
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(temp_path / "server.py").write_text("# Mock server.py")
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(temp_path / "Dockerfile").write_text(
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"""
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FROM python:3.11-slim
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COPY server.py /app/
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CMD ["python", "/app/server.py"]
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"""
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)
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yield temp_path
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class TestIntegration:
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"""Integration tests for the entire Docker setup"""
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def test_complete_docker_setup_validation(self, temp_project_dir):
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"""Test complete integration of Docker setup"""
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# Create a complete MCP configuration
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mcp_config = {
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"servers": {
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"zen-docker": {
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"command": "docker",
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"args": [
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"run",
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"--rm",
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"-i",
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"--env-file",
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str(temp_project_dir / ".env"),
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"-v",
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f"{temp_project_dir / 'logs'}:/app/logs",
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"zen-mcp-server:latest",
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"python",
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"server.py",
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],
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"env": {"DOCKER_BUILDKIT": "1"},
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}
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}
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}
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mcp_config_path = temp_project_dir / ".vscode" / "mcp.json"
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with open(mcp_config_path, "w") as f:
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json.dump(mcp_config, f, indent=2)
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# Create an .env file
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env_content = """
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GEMINI_API_KEY=test_key
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LOG_LEVEL=INFO
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"""
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(temp_project_dir / ".env").write_text(env_content)
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# Validate that everything is in place
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assert mcp_config_path.exists()
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assert (temp_project_dir / ".env").exists()
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assert (temp_project_dir / "Dockerfile").exists()
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assert (temp_project_dir / "logs").exists()
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# Validate MCP configuration
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with open(mcp_config_path) as f:
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loaded_config = json.load(f)
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assert "zen-docker" in loaded_config["servers"]
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zen_docker = loaded_config["servers"]["zen-docker"]
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assert zen_docker["command"] == "docker"
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assert "--env-file" in zen_docker["args"]
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if __name__ == "__main__":
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# Run tests
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pytest.main([__file__, "-v", "--tb=short"])
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