mcvsphere/README_DOCKER.md

mcvsphere - Docker Guide

This guide provides instructions for running the mcvsphere using Docker and Docker Compose.

Quick Start

Prerequisites

• Docker 20.10+
• Docker Compose 2.0+
• Access to a VMware vCenter Server or ESXi host

1. Setup

# Clone the repository
git clone <repository-url>
cd mcvsphere

# Create necessary directories and configuration
make setup

# Create environment variables file (optional)
make env-example
cp .env.example .env

2. Configuration

You have two options for configuration:

Option A: Configuration File (Recommended)

Edit config/config.yaml:

vcenter_host: "your-vcenter-ip"
vcenter_user: "administrator@vsphere.local"
vcenter_password: "your-password"
datacenter: "your-datacenter"
cluster: "your-cluster"
datastore: "your-datastore"
network: "VM Network"
insecure: true
api_key: "your-api-key"
log_level: "INFO"

Option B: Environment Variables

Edit .env file:

VCENTER_HOST=your-vcenter-ip
VCENTER_USER=administrator@vsphere.local
VCENTER_PASSWORD=your-password
VCENTER_DATACENTER=your-datacenter
VCENTER_CLUSTER=your-cluster
VCENTER_DATASTORE=your-datastore
VCENTER_NETWORK=VM Network
VCENTER_INSECURE=true
MCP_API_KEY=your-api-key
MCP_LOG_LEVEL=INFO

3. Run the Server

# Build and run
make dev

# Or run in background
make run

# Check status
make status

# View logs
make logs

Available Commands

Use make help to see all available commands:

make help

Build Commands

• make build - Build Docker image
• make build-no-cache - Build without cache

Run Commands

• make run - Run in background
• make run-logs - Run with logs
• make stop - Stop containers
• make restart - Restart containers

Development Commands

• make dev - Development mode (build + run with logs)
• make logs - Show logs
• make shell - Open bash shell in container
• make status - Show container status
• make health - Check container health

Maintenance Commands

• make clean - Remove containers and volumes
• make clean-all - Remove everything
• make update - Rebuild and restart

Docker Architecture

Multi-stage Build

The Dockerfile uses a multi-stage build process:

1. Builder Stage: Installs build dependencies and Python packages
2. Production Stage: Creates a minimal runtime image

Security Features

• Runs as non-root user (mcpuser)
• Minimal base image (python:3.11-slim)
• Only necessary runtime dependencies
• Configurable resource limits

Directory Structure

/app/
├── server.py              # Main application
├── config.yaml.sample     # Configuration template
├── docker-entrypoint.sh   # Startup script
├── config/                # Configuration directory (mounted)
│   └── config.yaml        # Runtime configuration
└── logs/                  # Log directory (mounted)
    └── vmware_mcp.log     # Application logs

Configuration Options

Volume Mounts

• ./config.yaml:/app/config/config.yaml:ro - Configuration file (read-only)
• ./logs:/app/logs - Log directory

Environment Variables

All configuration options can be set via environment variables:

Variable	Description	Default
VCENTER_HOST	vCenter/ESXi hostname	Required
VCENTER_USER	Username	Required
VCENTER_PASSWORD	Password	Required
VCENTER_DATACENTER	Datacenter name	Auto-detect
VCENTER_CLUSTER	Cluster name	Auto-detect
VCENTER_DATASTORE	Datastore name	Auto-detect
VCENTER_NETWORK	Network name	VM Network
VCENTER_INSECURE	Skip SSL verification	true
MCP_API_KEY	API authentication key	None
MCP_LOG_LEVEL	Log level	INFO

Resource Limits

Default resource limits in docker-compose.yml:

• Memory: 512MB limit, 256MB reserved
• CPU: 0.5 cores limit, 0.25 cores reserved

Health Checks

The container includes automatic health checks:

• Interval: 30 seconds
• Timeout: 10 seconds
• Retries: 3
• Start Period: 40 seconds

Check health manually:

make health

Networking

The server exposes:

• Port 8080: HTTP API endpoint
• Path /sse: Server-Sent Events endpoint
• Path /sse/messages: JSON-RPC messages endpoint

Troubleshooting

Check Logs

make logs

Check Container Status

make status

Open Shell in Container

make shell

Common Issues

1. Configuration not found: Ensure config/config.yaml exists or environment variables are set
2. Permission denied: Check that the logs directory is writable
3. Connection failed: Verify vCenter/ESXi connectivity and credentials
4. Health check failed: Check if the server is responding on port 8080

Debug Mode

Run with debug logging:

# Set in .env file
MCP_LOG_LEVEL=DEBUG

# Or in config.yaml
log_level: "DEBUG"

Production Deployment

Security Recommendations

1. Use a dedicated user account for vCenter access
2. Enable API key authentication
3. Use valid SSL certificates (set insecure: false)
4. Limit container resources
5. Use Docker secrets for sensitive data

High Availability

For production deployments, consider:

• Running multiple container instances
• Using a load balancer
• Implementing persistent storage for logs
• Setting up monitoring and alerting

Examples

Basic Usage

# Start the server
make run

# Check if it's working
curl http://localhost:8080/sse

API Authentication

# With API key
curl -H "Authorization: Bearer your-api-key" http://localhost:8080/sse

Development

# Development workflow
make build
make dev

# Make changes to code
# Rebuild and restart
make update