Drone MCP Server

A Model Context Protocol (MCP) server for interacting with Drone CI/CD. This server provides tools and resources to query build information, repositories, and more from your Drone instance.

Features

• List repositories: Get all repositories in your Drone instance
• List builds: List builds for a specific repository
• Get build details: Retrieve detailed information about a specific build
• Resource access: Access build details via resource URIs

Installation

go mod tidy
go build -o drone-mcp-server .

Configuration

Set the following environment variables:

export DRONE_SERVER=https://drone.example.com
export DRONE_TOKEN=your_drone_token
# Optional: For SSE transport authentication
export MCP_AUTH_TOKEN=your_sse_auth_token

The DRONE_TOKEN should be a personal access token with appropriate permissions to read repositories and builds.

SSE Authentication: When using SSE transport, you can optionally set MCP_AUTH_TOKEN to require Bearer token authentication. Clients must include Authorization: Bearer <token> header in their requests. If not set, SSE endpoints will be publicly accessible (use with caution in production).

Usage

As an MCP server

Add the server to your MCP client configuration (e.g., Claude Desktop):

{
  "mcpServers": {
    "drone": {
      "command": "/path/to/drone-mcp-server",
      "env": {
        "DRONE_SERVER": "https://drone.example.com",
        "DRONE_TOKEN": "your_token"
      }
    }
  }
}

Direct execution

You can run the server directly for testing:

# Stdio mode (default)
./drone-mcp-server

# SSE HTTP mode
./drone-mcp-server --sse --host localhost --port 8080

#### Transport Modes

1. Stdio mode (default): Communicates via stdin/stdout using the MCP protocol. Suitable for local integration with MCP clients.

1. SSE HTTP mode: Uses Server-Sent Events (SSE) over HTTP. Suitable for remote access or testing.

   # Without authentication (public access)
   ./drone-mcp-server --sse --host 0.0.0.0 --port 8080
   
   # With authentication (recommended for production)
    export MCP_AUTH_TOKEN=your-secret-token
   ./drone-mcp-server --sse --host 0.0.0.0 --port 8080

The server will be available at http://localhost:8080/ for SSE connections.

Authentication: If MCP_AUTH_TOKEN is set, clients must include the header:

   Authorization: Bearer your-secret-token

Available Tools

Repository Management

#### list_repos Lists all repositories in your Drone instance.

#### get_repo Get repository details.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### enable_repo Enable a repository.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### disable_repo Disable a repository.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### repair_repo Repair a repository.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### chown_repo Change repository ownership.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### sync_repos Synchronize repository list.

#### list_incomplete List repositories with incomplete builds.

Build Management

#### list_builds Lists builds for a specific repository.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### get_build Get detailed information about a specific build.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number

#### get_build_last Get the last build for a repository (optionally by branch).

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• branch (string, optional): Branch name

#### get_build_logs Get logs for a specific build stage and step.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number
• stage (number): Stage number
• step (number): Step number

#### restart_build Restart a build (optionally with parameters).

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number
• params (object, optional): Build parameters

#### cancel_build Cancel a running build.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number

#### promote_build Promote a build to a target environment.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number
• target (string): Target environment
• params (object, optional): Promotion parameters

#### rollback_build Rollback a deployment to a previous build.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number
• target (string): Target environment
• params (object, optional): Rollback parameters

#### approve_build Approve a build stage (for gated deployments).

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number
• stage (number): Stage number

#### decline_build Decline a build stage (for gated deployments).

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• build (number): Build number
• stage (number): Stage number

#### create_build Create a new build from a commit or branch.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• commit (string, optional): Commit SHA
• branch (string, optional): Branch name
• params (object, optional): Build parameters

Cron Job Management

#### list_crons List cron jobs for a repository.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### get_cron Get cron job details.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• cron (string): Cron job name

#### create_cron Create a new cron job.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• name (string): Cron job name
• expr (string): Cron expression
• branch (string): Branch name
• disable (boolean, optional): Disable the cron job

#### delete_cron Delete a cron job.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• cron (string): Cron job name

#### execute_cron Execute a cron job immediately.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• cron (string): Cron job name

Secret Management

#### list_secrets List repository secrets.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name

#### get_secret Get repository secret details.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• name (string): Secret name

#### create_secret Create a repository secret.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• name (string): Secret name
• value (string): Secret value
• pull_request (boolean, optional): Allow in pull requests
• pull_request_push (boolean, optional): Allow in pull request push events

#### update_secret Update a repository secret.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• name (string): Secret name
• value (string): Secret value
• pull_request (boolean, optional): Allow in pull requests
• pull_request_push (boolean, optional): Allow in pull request push events

#### delete_secret Delete a repository secret.

Arguments:

• owner (string): Repository owner
• repo (string): Repository name
• name (string): Secret name

#### Organization Secrets

#### list_org_secrets List organization secrets.

Arguments:

• namespace (string): Organization namespace

#### get_org_secret Get organization secret details.

Arguments:

• namespace (string): Organization namespace
• name (string): Secret name

#### create_org_secret Create an organization secret.

Arguments:

• namespace (string): Organization namespace
• name (string): Secret name
• value (string): Secret value
• pull_request (boolean, optional): Allow in pull requests
• pull_request_push (boolean, optional): Allow in pull request push events

#### update_org_secret Update an organization secret.

Arguments:

• namespace (string): Organization namespace
• name (string): Secret name
• value (string): Secret value
• pull_request (boolean, optional): Allow in pull requests
• pull_request_push (boolean, optional): Allow in pull request push events

#### delete_org_secret Delete an organization secret.

Arguments:

• namespace (string): Organization namespace
• name (string): Secret name

User Management

#### get_self Get current authenticated user.

#### list_users List all users.

#### get_user Get user details.

Arguments:

• login (string): User login name

#### create_user Create a new user.

Arguments:

• login (string): User login name
• email (string, optional): User email
• admin (boolean, optional): Admin privileges
• active (boolean, optional): Active status
• token (string, optional): User token

#### update_user Update a user.

Arguments:

• login (string): User login name
• admin (boolean, optional): Admin privileges
• active (boolean, optional): Active status

#### delete_user Delete a user.

Arguments:

• login (string): User login name

Template Management

#### list_templates List templates (optionally by namespace).

Arguments:

• namespace (string, optional): Template namespace

#### get_template Get template details and data.

Arguments:

• namespace (string): Template namespace
• name (string): Template name

#### create_template Create a new template.

Arguments:

• namespace (string): Template namespace
• name (string): Template name
• data (string): Template data (YAML)

#### update_template Update a template.

Arguments:

• namespace (string): Template namespace
• name (string): Template name
• data (string): Template data (YAML)

#### delete_template Delete a template.

Arguments:

• namespace (string): Template namespace
• name (string): Template name

Resources

Build details resource

Access build details via resource URI: drone://builds/{owner}/{repo}/{build}

Example:

Read resource: drone://builds/owner1/repo1/123

Docker

A multi-architecture Docker image is available on GitHub Container Registry:

# Pull the latest image
docker pull ghcr.io/yusiwen/drone-mcp-server:latest

# Run in stdio mode (for MCP clients)
docker run -e DRONE_SERVER=https://drone.example.com \
           -e DRONE_TOKEN=your_token \
           ghcr.io/yusiwen/drone-mcp-server

# Run in SSE mode with custom port
docker run -e DRONE_SERVER=https://drone.example.com \
           -e DRONE_TOKEN=your_token \
           -p 8080:8080 \
           ghcr.io/yusiwen/drone-mcp-server --sse --host 0.0.0.0

# Run with SSE authentication
docker run -e DRONE_SERVER=https://drone.example.com \
           -e DRONE_TOKEN=your_token \
           -e MCP_AUTH_TOKEN=your_sse_token \
           -p 8080:8080 \
           ghcr.io/yusiwen/drone-mcp-server --sse --host 0.0.0.0

Docker Compose Example

version: '3.8'
services:
  drone-mcp-server:
    image: ghcr.io/yusiwen/drone-mcp-server:latest
    environment:
      DRONE_SERVER: https://drone.example.com
      DRONE_TOKEN: ${DRONE_TOKEN}
      MCP_AUTH_TOKEN: ${MCP_AUTH_TOKEN:-}
    ports:
      - "8080:8080"
    command: ["--sse", "--host", "0.0.0.0"]
    restart: unless-stopped

Releases

Pre-built binaries are available for Linux (x64, arm64), macOS (x64, arm64), and Windows (x64) in the GitHub Releases.

Version Information

The binary includes version information:

./drone-mcp-server --version

Output example:

drone-mcp-server
Version: v1.0.0
Commit: abc123
Build date: 2024-01-01T00:00:00Z
Go version: go1.25.1

Project Structure

.
├── main.go              # Main entry point, handles command line arguments and server startup
├── tool/                # Tool handlers module
│   ├── build.go         # Build-related tools (list_builds, get_build, restart_build, etc.)
│   ├── repo.go          # Repository-related tools (list_repos, enable_repo, disable_repo, etc.)
│   ├── resource.go      # Resource handling (drone://builds/...)
│   ├── cron.go          # Cron job management tools
│   ├── secret.go        # Secret management tools
│   ├── user.go          # User management tools
│   └── template.go      # Template management tools
├── test_env.sh          # Test script (uses environment variables)
├── test_mcp.go          # MCP integration test
└── README.md

Development

Dependencies

• Go 1.21+
• github.com/modelcontextprotocol/go-sdk - MCP SDK
• github.com/drone/drone-go - Drone API client

Building

go build -o drone-mcp-server .

Testing

Set environment variables and run the server:

export DRONE_SERVER=...
export DRONE_TOKEN=...
./drone-mcp-server

License

MIT