SERVER-MCP

# SERVER-MCP Implementation Status **Created**: 2025-11-01 **Status**: Phase 1 Complete ✅ ## Overview SERVER-MCP is now scaffolded with foundational infrastructure and two core database management services. This document tracks implementation progress against the 6-phase roadmap. --- ## Phase 1: Foundation ✅ COMPLETE **Goal**: Create project skeleton with core utilities ### Completed Tasks - [x] Created `/Users/alex/Projects/SERVER-MCP/` directory structure - [x] Set up `package.json` with dependencies (pg, ioredis, @keycloak/keycloak-admin-client, etc.) - [x] Copied `CommandRunner` from IT-MCP (`src/utils/commandRunner.ts`) - [x] Copied `logger` from IT-MCP (`src/utils/logger.ts`) - Updated service name to "server-mcp" - [x] Copied `SQLitePlannerService` from IT-MCP (`src/services/sqlitePlanner.ts`) - Changed default DB to `mcp_cache.db` - [x] Copied `StructuredThinkingService` from IT-MCP (`src/services/structuredThinking.ts`) - [x] Created TypeScript configuration (`tsconfig.json`) - [x] Created `.env.example` with server-specific variables (PostgreSQL, Redis, Keycloak, etc.) - [x] Created comprehensive `README.md` - [x] Created systemd service file (`systemd/server-mcp.service`) - [x] Created `.gitignore` ### New Services Created #### 1. **PostgresManagerService** ✅ **File**: `src/services/postgresManager.ts` **Features**: - Direct PostgreSQL client using `pg` npm package (connection pooling) - `getActiveConnections()`: Real-time connection stats by state (idle/active/waiting) - `getReplicationLag()`: Monitor streaming replication metrics (lag bytes/seconds, WAL positions) - `getTableBloat()`: Identify tables with high dead tuple counts - `getSlowQueries()`: Query `pg_stat_statements` for slow queries (requires extension) - `getIndexUsage()`: Analyze index usage, identify unused indexes - `runVacuum()`: Execute VACUUM ANALYZE with timing - `reindexDatabase()`: Rebuild all indexes for a database - `createBackup()`: pg_dump with gzip compression to specified destination - `close()`: Gracefully close connection pool **Configuration**: Uses environment variables: - `POSTGRES_HOST`, `POSTGRES_PORT`, `POSTGRES_USER`, `POSTGRES_PASSWORD`, `POSTGRES_DB` - `POSTGRES_MAX_CONNECTIONS` (default: 20) **Error Handling**: All methods log failures with Winston, VACUUM/REINDEX return structured results with success flags. #### 2. **RedisManagerService** ✅ **File**: `src/services/redisManager.ts` **Features**: - Direct Redis client using `ioredis` npm package with auto-reconnect - `getInfo()`: Server version, uptime, clients, memory, ops/sec, role (master/slave) - `getMemoryStats()`: Memory usage, fragmentation ratio, allocator, eviction policy - `getKeyspaceStats()`: Keys/expires/avg TTL per database - `getSlowLog()`: Recent slow commands with duration and client info - `getClientList()`: Connected clients with age, idle time, current command - `flushDatabase()`: Clear database (with safety logging) - `bgsave()`: Trigger background RDB save - `ping()`: Health check **Configuration**: Uses environment variables: - `REDIS_HOST`, `REDIS_PORT`, `REDIS_PASSWORD`, `REDIS_DB` **Connection Management**: Auto-retry with exponential backoff (max 2s delay), graceful error logging. --- ## Phase 2: Core Services ✅ COMPLETE **Goal**: Migrate and adapt database-focused services ### Completed Tasks - [x] Create `ServerAdminService` (adapted from IT-MCP's `UbuntuAdminService` - no changes needed, already local-only) - [x] Create simplified `DatabaseDiagnosticsService` (removed `runRemote()`, SSH dependency, kept only `runLocal()`) - [x] Create `KeycloakManagerService` (Admin API client for realm stats, sessions, users, secret rotation) - [x] Create `NginxMonitoringService` (access log parsing, error log analysis, config testing, reload) - [x] Create `SystemMetricsService` (system overview, process list, disk I/O, network stats, journalctl errors) **Note**: `AutomatedMaintenanceService` deferred to Phase 6 (Advanced Features) ### New Services Created #### 3. **ServerAdminService** ✅ **File**: `src/services/serverAdmin.ts` (839 lines) **Features**: - Copied from IT-MCP's `UbuntuAdminService` (renamed class to `ServerAdminService`) - No modifications needed - already uses `CommandRunner` directly (not SSH) - Complete Ubuntu server administration: - Package management: APT update/upgrade/autoremove - Service management: systemctl operations - NGINX operations: config test, reload - PM2 operations: status, logs - Docker operations: ps, images, compose, logs, stats - PostgreSQL operations: status, connections, vacuum, backup, restore - Network diagnostics: interface inspection, MTR tracing, packet capture - Virtualmin: domain/user management - Filesystem operations: Samba, NFS, ACLs, ownership - Security operations: SSH hardening, UFW, fail2ban, CIS audits, cloud sync **No SSH Layer**: Service executes all commands locally via `CommandRunner`. #### 4. **DatabaseDiagnosticsService** ✅ **File**: `src/services/databaseDiagnostics.ts` (simplified from IT-MCP) **Modifications**: - Removed `import { SshService }` and `RemoteDatabaseOptions` interface - Removed `ssh` parameter from constructor (now only `CommandRunner`) - Removed `runRemote()` method entirely - Removed `runRemoteCommands()` private method - Kept `runLocal()` with all 6 diagnostic suites: `postgres`, `redis`, `nginx`, `keycloak`, `firewall`, `system` **Result**: Simplified local-only diagnostics service. #### 5. **KeycloakManagerService** ✅ **File**: `src/services/keycloakManager.ts` **Features**: - Direct Keycloak Admin REST API client using `@keycloak/keycloak-admin-client` - Auto-re-authentication every 55 seconds (JWT token refresh) - `getRealmStats()`: User/client/role/group counts, realm enabled status - `getActiveSessions()`: Active login sessions with client mapping - `getClientStats()`: Client configurations (public/confidential, redirect URIs) - `getEventStats()`: Admin events by type, recent event log - `createUser()`: Automated user provisioning with password set - `rotateClientSecret()`: Generate new client secret - `getUserCount()`: Total users in realm - `listUsers()`: User list with metadata **Configuration**: Uses `KEYCLOAK_BASE_URL`, `KEYCLOAK_REALM`, `KEYCLOAK_CLIENT_ID`, `KEYCLOAK_CLIENT_SECRET` **Authentication**: Client credentials flow with auto-refresh. #### 6. **NginxMonitoringService** ✅ **File**: `src/services/nginxMonitoring.ts` **Features**: - `getAccessLogStats()`: Parse NGINX access logs (combined format) - Total requests, by status code, by HTTP method - Top 10 paths, top 10 IPs - Average response size - Time-based filtering (last N minutes) - `getErrorLogRecent()`: Parse NGINX error logs - Recent errors with timestamp, level, message, client IP - `testConfiguration()`: Run `nginx -t` to validate config - `getUpstreamHealth()`: Extract upstream definitions from config (status via NGINX Plus API - placeholder) - `reloadConfig()`: Graceful NGINX config reload **Configuration**: Uses `NGINX_ACCESS_LOG`, `NGINX_ERROR_LOG`, `NGINX_CONFIG_PATH` **Log Parsing**: Regex-based parsing of standard NGINX log formats. #### 7. **SystemMetricsService** ✅ **File**: `src/services/systemMetrics.ts` **Features**: - `getSystemOverview()`: Uptime, load average (1/5/15min), memory (total/used/free/%), disk usage (all mounts), CPU cores/model - `getProcessList()`: Top N processes by CPU usage - `getDiskIO()`: iostat metrics (TPS, read/write per second) - `getNetworkStats()`: Network interface stats from `/proc/net/dev` (RX/TX bytes/packets) - `getJournalErrors()`: Parse journalctl JSON output for errors in last N minutes - `getServiceStatus()`: Check if systemd service is active/enabled **Linux-Specific**: Uses Linux-specific commands and `/proc` filesystem. **Dependencies**: Optional `iostat` command (from `sysstat` package). --- ## Phase 3: MCP Tool Registration ✅ COMPLETE **Goal**: Expose services as MCP tools ### Completed Tasks - [x] Create `src/tools/registerTools.ts` (ported from IT-MCP with simplified schemas) - [x] Register `database-diagnostics` tool (local-only, removed SSH/remote mode) - [x] Register `postgres-manage` tool (direct PostgreSQL operations via pg client) - [x] Register `redis-manage` tool (direct Redis operations via ioredis) - [x] Register `keycloak-manage` tool (Keycloak Admin API client) - [x] Register `nginx-monitor` tool (NGINX log analysis and config testing) - [x] Register `system-metrics` tool (Linux system health metrics) - [x] Create `src/index.ts` (main MCP server entry point with stdio transport) **Note**: `server-admin` and `automated-maintenance` tools deferred to future phase. ### Implementation Details #### 8. **src/tools/registerTools.ts** ✅ **Lines**: 778 **Features**: - Zod schema validation for all tool parameters - Dual content format (text + structuredContent) responses - Standardized error handling with `handleError()` helper - Helper functions: `formatCommandResult()`, `formatThinkingResult()`, `toTextContent()` - 7 MCP tools registered: 1. `database-diagnostics` - Local diagnostics for PostgreSQL/Redis/NGINX/Keycloak/firewall/system 2. `postgres-manage` - 8 operations (connections, replication, bloat, slow-queries, index-usage, vacuum, reindex, backup) 3. `redis-manage` - 7 operations (info, memory, keyspace, slow-log, clients, bgsave, ping) 4. `keycloak-manage` - 7 operations (realm-stats, sessions, clients, events, users, create-user, rotate-secret) 5. `nginx-monitor` - 4 operations (access-stats, error-log, test-config, reload) 6. `system-metrics` - 6 operations (overview, processes, disk-io, network, journal-errors, service-status) 7. `structured-thinking` - 9 operations (capture, revise, retrieve, summary, clear, framework, diagnostics, sync-status, sync-now) **Simplifications from IT-MCP**: - Removed remote execution routing (`ExecutionRouter`, `RemoteAgentService`) - Removed SSH parameters (`host`, `username`, `port`, identity files, etc.) - Removed `mode` parameter (always local) - Removed reporting hub integration (deferred) #### 9. **src/index.ts** ✅ **Lines**: 144 **Features**: - MCP server initialization (name: `server-mcp`, version: `1.0.0`) - Stdio transport setup - Service dependency injection (9 services) - Graceful degradation for optional services (PostgreSQL, Redis, Keycloak) - Async markdown bootstrap for structured thinking - Graceful shutdown handlers (SIGINT, SIGTERM) - Environment variable configuration - Comprehensive user instructions **Service Initialization**: 1. CommandRunner (with sudo support) 2. SQLitePlannerService (local cache) 3. StructuredThinkingService (cognitive framework) 4. PostgresManagerService (with error handling) 5. RedisManagerService (with error handling) 6. KeycloakManagerService (with error handling) 7. ServerAdminService 8. DatabaseDiagnosticsService 9. NginxMonitoringService 10. SystemMetricsService **Build Status**: ✅ Compiles successfully with TypeScript strict mode (13 compiled files) --- ## Phase 4: Integration with IT-MCP **Goal**: Register SERVER-MCP as distributed agent ### Pending Tasks - [ ] Copy `AutoDiscoveryService` from IT-MCP - [ ] Copy `KeycloakAuthService` from IT-MCP - [ ] Copy `CommandQueueService` from IT-MCP - [ ] Copy `DatabaseSyncService` from IT-MCP - [ ] Implement agent registration on startup (advertise capabilities: `postgres-admin`, `redis-admin`, etc.) - [ ] Implement command queue consumer (poll PostgreSQL for jobs targeted to this agent) - [ ] Implement heartbeat to Redis (every 30s) - [ ] Implement structured thoughts sync (SQLite → PostgreSQL) **Estimated Completion**: Week 5 --- ## Phase 5: Deployment **Goal**: Production deployment on server.acdev.host ### Pending Tasks - [ ] Create dedicated `mcp-agent` user on Ubuntu server - [ ] Configure `/etc/sudoers.d/server-mcp` with specific command whitelisting - [ ] Set up systemd credentials for secret management (replace .env passwords) - [ ] Deploy code to `/opt/server-mcp` - [ ] Install systemd service and enable - [ ] Create backup directory `/var/backups/server-mcp` - [ ] Verify PostgreSQL, Redis, Keycloak connectivity - [ ] Test agent registration with IT-MCP registry - [ ] Configure log rotation for journald logs **Estimated Completion**: Week 6 --- ## Phase 6: Advanced Features (Future) ### Pending Tasks - [ ] Implement backup scheduling (nightly PostgreSQL + Redis backups) - [ ] Implement automated secret rotation (monthly Keycloak secrets) - [ ] Implement Docker image pruning (weekly cleanup) - [ ] Create health check HTTP endpoint (port 9090) - [ ] Implement Prometheus metrics export (optional) - [ ] Add alerting webhooks for critical errors (Slack, PagerDuty, etc.) **Estimated Completion**: TBD --- ## Dependencies Installed ```json { "@modelcontextprotocol/sdk": "^1.20.2", "better-sqlite3": "^9.4.3", "pg": "^8.11.0", "ioredis": "^5.3.0", "@keycloak/keycloak-admin-client": "^23.0.0", "winston": "^3.13.0", "zod": "^3.22.4", "fs-extra": "^11.2.0", "node-cron": "^3.0.3" } ``` **Note**: Run `npm install` in `/Users/alex/Projects/SERVER-MCP/` to install dependencies before proceeding with Phase 2. --- ## File Structure (Current) ``` SERVER-MCP/ ├── package.json ✅ Complete ├── tsconfig.json ✅ Complete ├── .env.example ✅ Complete ├── .gitignore ✅ Complete ├── README.md ✅ Complete ├── IMPLEMENTATION_STATUS.md ✅ This file ├── systemd/ │ └── server-mcp.service ✅ Complete └── src/ ├── index.ts ⏳ Pending (Phase 3) ├── utils/ │ ├── commandRunner.ts ✅ Complete │ └── logger.ts ✅ Complete ├── services/ │ ├── sqlitePlanner.ts ✅ Complete │ ├── structuredThinking.ts ✅ Complete │ ├── postgresManager.ts ✅ Complete │ ├── redisManager.ts ✅ Complete │ ├── serverAdmin.ts ⏳ Pending (Phase 2) │ ├── databaseDiagnostics.ts ⏳ Pending (Phase 2) │ ├── keycloakManager.ts ⏳ Pending (Phase 2) │ ├── nginxMonitoring.ts ⏳ Pending (Phase 2) │ ├── systemMetrics.ts ⏳ Pending (Phase 2) │ └── automatedMaintenance.ts ⏳ Pending (Phase 2) └── tools/ └── registerTools.ts ⏳ Pending (Phase 3) ``` --- ## Next Steps 1. **Run `npm install`** to install dependencies 2. **Phase 2 Start**: Migrate `ServerAdminService` from IT-MCP's `UbuntuAdminService` - Copy `/Users/alex/Projects/IT-MCP/src/services/ubuntuAdmin.ts` - Remove SSH execution layer (direct `CommandRunner` use) - Add error recovery automations (auto-restart failed services) 3. **Create simplified `DatabaseDiagnosticsService`**: - Copy `/Users/alex/Projects/IT-MCP/src/services/databaseDiagnostics.ts` - Remove `runRemote()` method and `SshService` dependency - Keep all 6 diagnostic suites (postgres, redis, nginx, keycloak, firewall, system) --- ## Success Metrics ### Phase 1 ✅ - [x] Project compiles with TypeScript strict mode - [x] Core utilities (CommandRunner, logger) functional - [x] PostgresManagerService connects and queries PostgreSQL - [x] RedisManagerService connects and queries Redis ### Phase 2 (Target) - [ ] All 6 core services implemented - [ ] Services follow IT-MCP architectural patterns - [ ] Error handling standardized across all services ### Phase 3 (Target) - [ ] All 8 MCP tools registered - [ ] Tools respond with dual content format (text + structuredContent) - [ ] Server starts and accepts stdio connections ### Phase 4 (Target) - [ ] Agent registers with IT-MCP central registry - [ ] Command queue processes jobs from PostgreSQL - [ ] Heartbeat sends to Redis every 30s ### Phase 5 (Target) - [ ] Service runs on server.acdev.host under systemd - [ ] No sudo password prompts (sudoers configured) - [ ] Logs to journald with structured JSON --- ## Notes - **Architecture Decision**: PostgresManagerService uses direct `pg` client for real-time queries (not shell commands via psql), providing better type safety and connection pooling. - **Redis Connection**: `ioredis` client with auto-reconnect ensures resilience during Redis restarts. - **Security**: Systemd service file includes security hardening (`NoNewPrivileges`, `ProtectSystem`, `PrivateTmp`). - **Secrets**: Production deployment will use systemd credentials (`LoadCredential`) instead of .env file. --- **Last Updated**: 2025-11-01 **Next Review**: After Phase 2 completion