import winston from 'winston';
import { config } from '../config/index.js';
// Create Winston logger instance
const createWinstonLogger = () => {
const transports: winston.transport[] = [];
// Console transport
transports.push(
new winston.transports.Console({
format: winston.format.combine(
winston.format.timestamp(),
winston.format.errors({ stack: true }),
config.logging.format === 'json'
? winston.format.json()
: winston.format.combine(
winston.format.colorize(),
winston.format.simple()
)
),
})
);
// File transport (if enabled)
if (config.logging.enableFileLogging && config.logging.logFilePath) {
transports.push(
new winston.transports.File({
filename: config.logging.logFilePath,
format: winston.format.combine(
winston.format.timestamp(),
winston.format.errors({ stack: true }),
winston.format.json()
),
maxsize: parseInt(config.logging.maxFileSize.replace(/[^0-9]/g, '')) * 1024 * 1024,
maxFiles: config.logging.maxFiles,
tailable: true,
})
);
}
return winston.createLogger({
level: config.logging.level,
format: winston.format.combine(
winston.format.timestamp(),
winston.format.errors({ stack: true })
),
transports,
defaultMeta: {
service: 'mcp-kubernetes-server',
version: config.server.version,
},
exceptionHandlers: [
new winston.transports.Console({
format: winston.format.combine(
winston.format.timestamp(),
winston.format.errors({ stack: true }),
winston.format.json()
),
}),
],
exitOnError: false,
});
};
export const logger = createWinstonLogger();
// Utility functions for structured logging
export const createChildLogger = (meta: Record<string, unknown> = {}) => {
return logger.child(meta);
};
export const logError = (message: string, error: Error, meta: Record<string, unknown> = {}) => {
logger.error(message, {
error: {
name: error.name,
message: error.message,
stack: error.stack,
},
...meta,
});
};
export const logOperation = (
operation: string,
resource: string,
meta: Record<string, unknown> = {}
) => {
logger.info('Kubernetes operation', {
operation,
resource,
timestamp: new Date().toISOString(),
...meta,
});
};
export const logAudit = (
action: string,
resource: string,
user?: string,
meta: Record<string, unknown> = {}
) => {
logger.info('Audit log', {
action,
resource,
user,
timestamp: new Date().toISOString(),
...meta,
});
};
