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proxmox-mcp-custom/server.py
Ben 9c7e2d41dc
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Initial commit: Custom Proxmox MCP with SSE wrapper
2025-12-14 20:52:58 +00:00

114 lines
4.2 KiB
Python

import os
import logging
from mcp.server.fastmcp import FastMCP
from mcp.server.transport_security import TransportSecuritySettings
from proxmoxer import ProxmoxAPI
from dotenv import load_dotenv
# Load environment variables
load_dotenv()
# Logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
# --- Proxmox API Configuration ---
PROXMOX_URL = os.getenv("PROXMOX_URL")
PROXMOX_USER = os.getenv("PROXMOX_USER")
PROXMOX_PASSWORD = os.getenv("PROXMOX_PASSWORD")
PROXMOX_TOKEN_ID = os.getenv("PROXMOX_TOKEN_ID")
PROXMOX_VERIFY_SSL = os.getenv("PROXMOX_VERIFY_SSL", "false").lower() == "true"
# --- MCP Transport Security ---
# Allow external access via reverse proxy and local development
MCP_ALLOWED_HOSTS = os.getenv("MCP_ALLOWED_HOSTS", "proxmox-mcp.ext.ben.io,localhost:*,127.0.0.1:*")
# --- Initialize Proxmox Client ---
proxmox = None
if PROXMOX_URL and PROXMOX_USER:
try:
if PROXMOX_TOKEN_ID and PROXMOX_PASSWORD:
# Token-based authentication
# PROXMOX_USER should be like "user@pam" or "user@pve"
# PROXMOX_TOKEN_ID is the token name (e.g., "mcp-token")
# PROXMOX_PASSWORD is the token secret value
proxmox = ProxmoxAPI(
PROXMOX_URL,
user=PROXMOX_USER,
token_name=PROXMOX_TOKEN_ID,
token_value=PROXMOX_PASSWORD,
verify_ssl=PROXMOX_VERIFY_SSL
)
logger.info(f"Proxmox API client configured with token auth for {PROXMOX_USER}")
elif PROXMOX_PASSWORD:
# Password-based authentication
proxmox = ProxmoxAPI(
PROXMOX_URL,
user=PROXMOX_USER,
password=PROXMOX_PASSWORD,
verify_ssl=PROXMOX_VERIFY_SSL
)
logger.info(f"Proxmox API client configured with password auth for {PROXMOX_USER}")
else:
logger.warning("PROXMOX_PASSWORD (or token secret) not set. Tools may fail.")
except Exception as e:
logger.error(f"Failed to configure Proxmox API: {e}")
else:
logger.warning("PROXMOX_URL or PROXMOX_USER not set. Tools may fail.")
# --- FastMCP Server ---
# Configure transport security to allow external access via reverse proxy
transport_security = TransportSecuritySettings(
enable_dns_rebinding_protection=True,
allowed_hosts=[h.strip() for h in MCP_ALLOWED_HOSTS.split(",")],
allowed_origins=[], # Empty = allow any origin (or none for same-origin)
)
mcp = FastMCP("Proxmox MCP", transport_security=transport_security)
@mcp.tool()
def list_nodes() -> dict:
"""Lists all Proxmox nodes."""
if not proxmox: return {"error": "Proxmox API not configured"}
try:
nodes = proxmox.nodes.get()
return {"nodes": nodes}
except Exception as e:
return {"error": str(e)}
@mcp.tool()
def get_cluster_resources() -> dict:
"""Gets a summary of all cluster resources."""
if not proxmox: return {"error": "Proxmox API not configured"}
try:
resources = proxmox.cluster.resources.get()
return {"resources": resources}
except Exception as e:
return {"error": str(e)}
@mcp.tool()
def proxmox_api_call(path: str, method: str = "GET", data: dict = {}, node: str = None, vmid: int = None, lxcid: int = None) -> dict:
"""Executes a raw Proxmox API call."""
if not proxmox: return {"error": "Proxmox API not configured"}
try:
# Build path
api_path = proxmox
for segment in path.strip('/').split('/'):
if segment == "nodes" and node: api_path = api_path.nodes(node)
elif segment == "qemu" and vmid: api_path = api_path.qemu(vmid)
elif segment == "lxc" and lxcid: api_path = api_path.lxc(lxcid)
elif segment: api_path = api_path(segment)
# Execute
method_func = getattr(api_path, method.lower())
if method.upper() in ["POST", "PUT"]:
return {"result": method_func(**data)}
else:
return {"result": method_func()}
except Exception as e:
return {"error": str(e)}
if __name__ == "__main__":
import uvicorn
# Use the exposed sse_app from FastMCP and run it with uvicorn
uvicorn.run(mcp.sse_app, host="0.0.0.0", port=8000)