SERVER-MCP

# Phase 2 Completion Summary **Date**: 2025-11-01 **Status**: ✅ **COMPLETE** --- ## Overview Phase 2 of the SERVER-MCP implementation has been successfully completed. All core database and system management services have been migrated from IT-MCP, adapted for on-server use, and enhanced with new capabilities. --- ## Services Implemented (7 Total) ### From Phase 1 (Foundation) 1. ✅ **PostgresManagerService** - Direct PostgreSQL management via `pg` client 2. ✅ **RedisManagerService** - Direct Redis management via `ioredis` client ### From Phase 2 (Core Services) 3. ✅ **ServerAdminService** - Ubuntu server administration (migrated from IT-MCP) 4. ✅ **DatabaseDiagnosticsService** - Simplified local-only diagnostics 5. ✅ **KeycloakManagerService** - Keycloak Admin API client 6. ✅ **NginxMonitoringService** - NGINX log analysis and monitoring 7. ✅ **SystemMetricsService** - Linux system metrics and health --- ## Migration Details ### 1. ServerAdminService (Migrated - No Changes Required) **Source**: `/Users/alex/Projects/IT-MCP/src/services/ubuntuAdmin.ts` **Destination**: `/Users/alex/Projects/SERVER-MCP/src/services/serverAdmin.ts` **Changes Made**: - ✅ Renamed class: `UbuntuAdminService` → `ServerAdminService` - ✅ **No SSH removal needed** - Service already used `CommandRunner` directly - ✅ All 10 operation categories preserved: 1. Package management (APT) 2. Service management (systemctl) 3. NGINX operations 4. PM2 process management 5. Docker operations (including Compose) 6. PostgreSQL operations 7. Network diagnostics 8. Virtualmin operations 9. Filesystem operations (Samba, NFS, ACLs) 10. Security operations (SSH, UFW, fail2ban, auditing) **Line Count**: 839 lines (unchanged) **Discovery**: IT-MCP's `UbuntuAdminService` was already designed for local execution, not remote SSH. This simplified migration significantly. --- ### 2. DatabaseDiagnosticsService (Simplified) **Source**: `/Users/alex/Projects/IT-MCP/src/services/databaseDiagnostics.ts` **Destination**: `/Users/alex/Projects/SERVER-MCP/src/services/databaseDiagnostics.ts` **Changes Made**: - ✅ Removed `import { SshService, type SshExecutionOptions }` (line 2) - ✅ Removed `RemoteDatabaseOptions` interface (lines 26-29) - ✅ Removed `ssh` parameter from constructor - ✅ Removed `runRemote()` public method - ✅ Removed `runRemoteCommands()` private method - ✅ **Kept** all 6 diagnostic suites: - `postgres` - PostgreSQL service, activity, replication - `redis` - Redis service, replication info - `nginx` - NGINX service, config test - `keycloak` - Docker containers, log tail - `firewall` - UFW status, fail2ban status - `system` - Uptime, disk, memory **Line Count**: 170 lines (reduced from ~230 lines) **Result**: Streamlined local-only diagnostics service retaining all diagnostic capabilities. --- ### 3. KeycloakManagerService (New Implementation) **File**: `/Users/alex/Projects/SERVER-MCP/src/services/keycloakManager.ts` **Features Implemented**: #### Authentication & Session Management - `authenticate()`: Client credentials flow with `@keycloak/keycloak-admin-client` - `ensureAuthenticated()`: Auto-refresh every 55 seconds - Session tracking with `lastAuth` timestamp #### Realm Operations - `getRealmStats(realmName?)`: User/client/role/group counts, realm enabled status - `getUserCount(realmName?)`: Total users in realm - `listUsers(realmName?, max=100)`: User list with metadata (id, username, email, enabled, created timestamp) #### Client Management - `getClientStats(realmName?)`: All clients with configurations (public/confidential, redirect URIs) - `rotateClientSecret(realmName, clientId)`: Generate new client secret #### Session & Event Monitoring - `getActiveSessions(realmName?)`: Active login sessions mapped to client IDs - `getEventStats(realmName?, lastHours=24)`: Admin events by type, recent event log #### User Management - `createUser(realmName, username, email, password)`: Automated user provisioning with password set **Dependencies**: - `@keycloak/keycloak-admin-client` - Official Keycloak Admin REST API client - Environment variables: `KEYCLOAK_BASE_URL`, `KEYCLOAK_REALM`, `KEYCLOAK_CLIENT_ID`, `KEYCLOAK_CLIENT_SECRET` **Line Count**: 325 lines --- ### 4. NginxMonitoringService (New Implementation) **File**: `/Users/alex/Projects/SERVER-MCP/src/services/nginxMonitoring.ts` **Features Implemented**: #### Access Log Analysis - `getAccessLogStats(logPath?, lastMinutes?)`: Parse NGINX combined log format - Total requests - Breakdown by HTTP status code (200, 404, 500, etc.) - Breakdown by HTTP method (GET, POST, PUT, DELETE) - Top 10 requested paths - Top 10 client IPs - Average response size - Time-based filtering (last N minutes) #### Error Log Analysis - `getErrorLogRecent(logPath?, lines=100)`: Parse NGINX error logs - Extract timestamp, error level, message - Extract client IP from error messages - Return structured error entries #### Configuration Management - `testConfiguration()`: Run `nginx -t` to validate config - Parse output for "test is successful" - Extract error lines if test failed - Return success flag and error details - `reloadConfig()`: Graceful NGINX reload via `systemctl reload nginx` #### Upstream Health (Placeholder) - `getUpstreamHealth()`: Extract upstream definitions from NGINX config - Parse `upstream` blocks from config file - Return upstream names with placeholder status (requires NGINX Plus API for real-time status) **Dependencies**: - Environment variables: `NGINX_ACCESS_LOG`, `NGINX_ERROR_LOG`, `NGINX_CONFIG_PATH` - Standard NGINX combined log format **Line Count**: 241 lines **Regex Parsing**: Uses robust regex to parse NGINX standard log formats. --- ### 5. SystemMetricsService (New Implementation) **File**: `/Users/alex/Projects/SERVER-MCP/src/services/systemMetrics.ts` **Features Implemented**: #### System Overview - `getSystemOverview()`: Comprehensive system snapshot - Uptime (`uptime -p`) - Load average: 1/5/15 minute (`/proc/loadavg`) - Memory: total/used/free/available/% used (`free -b`) - Disk usage: all filesystems with usage % (`df -h`) - CPU: cores and model (`lscpu`) #### Process Monitoring - `getProcessList(topN=20)`: Top N processes by CPU usage - PID, user, CPU%, memory%, command - Sorted by CPU usage descending #### I/O & Network Metrics - `getDiskIO()`: Disk I/O statistics - Transactions per second (TPS) - Read/write per second - Requires `iostat` command (optional, graceful fallback) - `getNetworkStats()`: Network interface statistics - RX/TX bytes and packets - Parsed from `/proc/net/dev` - Skips loopback interface #### Logging & Service Status - `getJournalErrors(lastMinutes=60)`: Parse journalctl for errors - JSON output parsing - Extract timestamp, unit, message, priority - Filter by error priority - `getServiceStatus(serviceName)`: Check systemd service health - Active status - Enabled status - Full status output **Dependencies**: - `/proc` filesystem (standard on Linux) - `systemctl`, `journalctl` (standard on systemd-based distros) - `iostat` (optional, from `sysstat` package) **Line Count**: 240 lines **Linux-Specific**: Designed specifically for Linux environments, uses `/proc` and systemd commands. --- ## TypeScript Compilation All services compile successfully with strict TypeScript mode: ```bash npm run build # ✅ Build completed successfully (0 errors) ``` **Fixes Applied**: 1. **RedisManagerService** - Fixed type errors: - Changed `Redis.RedisOptions` to explicit interface (ioredis namespace issue) - Added type assertions for `slowlog()` and `client()` return values 2. **NginxMonitoringService** - Fixed loop variable: - Changed loop over `upstreams` to `upstreamBlocks` (copy-paste error) 3. **KeycloakManagerService** - Fixed Date type: - Changed `dateFrom.toISOString()` to `dateFrom` for Keycloak Admin API --- ## File Structure (Current) ``` SERVER-MCP/ ├── package.json ✅ ├── tsconfig.json ✅ ├── .env.example ✅ ├── .gitignore ✅ ├── README.md ✅ ├── IMPLEMENTATION_STATUS.md ✅ (Updated) ├── GETTING_STARTED.md ✅ ├── PHASE2_SUMMARY.md ✅ (This file) ├── systemd/ │ └── server-mcp.service ✅ └── src/ ├── utils/ │ ├── commandRunner.ts ✅ │ └── logger.ts ✅ ├── services/ │ ├── sqlitePlanner.ts ✅ (Phase 1) │ ├── structuredThinking.ts ✅ (Phase 1) │ ├── postgresManager.ts ✅ (Phase 1) │ ├── redisManager.ts ✅ (Phase 1 - TypeScript fixes applied) │ ├── serverAdmin.ts ✅ (Phase 2 - Migrated) │ ├── databaseDiagnostics.ts ✅ (Phase 2 - Simplified) │ ├── keycloakManager.ts ✅ (Phase 2 - New) │ ├── nginxMonitoring.ts ✅ (Phase 2 - New) │ └── systemMetrics.ts ✅ (Phase 2 - New) └── tools/ └── registerTools.ts ⏳ (Phase 3 - Pending) ``` **Total Services**: 7 (2 from Phase 1, 5 from Phase 2) **Total Lines of Service Code**: ~2,500+ lines --- ## Key Achievements ### 1. Zero SSH Dependencies All services execute locally via `CommandRunner`. No remote SSH execution layer. ### 2. Direct Database Clients - PostgreSQL: Uses `pg` npm package for connection pooling and type-safe queries - Redis: Uses `ioredis` npm package with auto-reconnect - Keycloak: Uses official `@keycloak/keycloak-admin-client` REST API client ### 3. Comprehensive Coverage - **Database**: PostgreSQL, Redis monitoring and management - **Services**: NGINX, Keycloak, systemd service monitoring - **System**: CPU, memory, disk, network, process monitoring - **Logs**: NGINX access/error logs, journalctl error parsing - **Administration**: Complete Ubuntu server admin operations ### 4. Production-Ready Error Handling - All services use standardized `CommandExecutionError` with full context - Winston structured logging throughout - Graceful degradation (e.g., iostat optional, Keycloak API failures logged but non-fatal) --- ## Next Steps (Phase 3) ### MCP Tool Registration **Goal**: Expose all 7 services as MCP tools with Zod schemas **Tasks**: 1. Create `src/tools/registerTools.ts`: - Port from IT-MCP with simplified schemas (no `mode`, `host`, `username` parameters) - Register 8 tools: - `server-admin` (ServerAdminService) - `database-diagnostics` (DatabaseDiagnosticsService) - `postgres-manage` (PostgresManagerService) - `redis-manage` (RedisManagerService) - `keycloak-manage` (KeycloakManagerService) - `nginx-monitor` (NginxMonitoringService) - `system-metrics` (SystemMetricsService) - (Future: `automated-maintenance`) 2. Create `src/index.ts`: - Initialize MCP server with stdio transport - Instantiate all services with dependency injection - Call `registerTools(server, services)` - Start server 3. Test: - Compile with `npm run build` - Run with `npm run dev` - Test stdio communication **Estimated Timeline**: 1-2 days --- ## Success Metrics (Phase 2) - [x] All services compile with TypeScript strict mode - [x] Zero SSH dependencies (local execution only) - [x] Direct database clients integrated (pg, ioredis, Keycloak Admin) - [x] Comprehensive error handling with Winston logging - [x] Services follow IT-MCP architectural patterns - [x] Build succeeds with no errors: `npm run build` ✅ --- ## Notes ### Deferred to Phase 6 - **AutomatedMaintenanceService**: Backup scheduling, secret rotation, Docker pruning - These features will be implemented in Phase 6 (Advanced Features) as they require cron integration and more complex orchestration ### IT-MCP Alignment - Maintained 100% compatibility with IT-MCP's service layer patterns - All services use same `CommandRunner`, `logger`, error handling conventions - Easy to port additional services from IT-MCP if needed ### Security Considerations - All services respect `SERVER_MCP_ALLOW_SUDO` environment variable - Keycloak credentials stored in environment variables (systemd credentials in production) - NGINX config testing prevents invalid configurations from being loaded - All destructive operations (VACUUM, REINDEX, backups) have structured result reporting --- **Phase 2 Complete!** 🎉 Ready to proceed with **Phase 3: MCP Tool Registration** to expose these services as MCP tools.