clickhouse-mcp-compose.yml

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# ClickHouse MCP Service
# This service provides Model Context Protocol access to ClickHouse
# It connects to the ClickHouse instance from langfuse-compose.yml

services:
  clickhouse-mcp:
    image: mcp/clickhouse
    restart: always
    depends_on:
      clickhouse:
        condition: service_healthy  # References clickhouse service from langfuse-compose.yml
    environment:
      # Connect to ClickHouse service from Langfuse
      CLICKHOUSE_HOST: clickhouse  # Service name, not localhost!
      CLICKHOUSE_PORT: 8123        # HTTP protocol port (9000 is for native protocol)
      CLICKHOUSE_USER: ${CLICKHOUSE_USER:-clickhouse}
      CLICKHOUSE_PASSWORD: ${CLICKHOUSE_PASSWORD}  # Shared from Langfuse .env
      CLICKHOUSE_SECURE: "false"
      CLICKHOUSE_MCP_SERVER_TRANSPORT: "http"
      CLICKHOUSE_MCP_BIND_HOST: "0.0.0.0"  # Bind to all interfaces for container networking
      CLICKHOUSE_MCP_BIND_PORT: "8000"
      CLICKHOUSE_MCP_AUTH_TOKEN: ${CLICKHOUSE_MCP_AUTH_TOKEN:-}
    ports:
      - "127.0.0.1:8000:8000"  # Expose MCP HTTP endpoint on localhost only
    healthcheck:
      test: ["CMD-SHELL", "python3 -c \"import socket; s=socket.create_connection(('localhost',8000),2); s.close()\""]
      interval: 5s
      timeout: 5s
      retries: 10
      start_period: 5s