added working config lib

libs/config/src/monitoring.ts

@@ -0,0 +1,90 @@
+/**
+ * Monitoring configuration using envalid
+ * Prometheus metrics, Grafana visualization, and Loki logging
+ */
+import { cleanEnv, str, port, bool, num } from 'envalid';
+
+/**
+ * Prometheus configuration with validation and defaults
+ */
+export const prometheusConfig = cleanEnv(process.env, {
+  // Prometheus Server
+  PROMETHEUS_HOST: str({ default: 'localhost', desc: 'Prometheus host' }),
+  PROMETHEUS_PORT: port({ default: 9090, desc: 'Prometheus port' }),
+  PROMETHEUS_URL: str({ default: '', desc: 'Complete Prometheus URL (overrides host/port)' }),
+  
+  // Authentication
+  PROMETHEUS_USERNAME: str({ default: '', desc: 'Prometheus username (if auth enabled)' }),
+  PROMETHEUS_PASSWORD: str({ default: '', desc: 'Prometheus password (if auth enabled)' }),
+  
+  // Metrics Collection
+  PROMETHEUS_SCRAPE_INTERVAL: str({ default: '15s', desc: 'Default scrape interval' }),
+  PROMETHEUS_EVALUATION_INTERVAL: str({ default: '15s', desc: 'Rule evaluation interval' }),
+  PROMETHEUS_RETENTION_TIME: str({ default: '15d', desc: 'Data retention time' }),
+  
+  // TLS Settings
+  PROMETHEUS_TLS_ENABLED: bool({ default: false, desc: 'Enable TLS for Prometheus' }),
+  PROMETHEUS_TLS_INSECURE: bool({ default: false, desc: 'Skip TLS verification' }),
+});
+
+/**
+ * Grafana configuration with validation and defaults
+ */
+export const grafanaConfig = cleanEnv(process.env, {
+  // Grafana Server
+  GRAFANA_HOST: str({ default: 'localhost', desc: 'Grafana host' }),
+  GRAFANA_PORT: port({ default: 3000, desc: 'Grafana port' }),
+  GRAFANA_URL: str({ default: '', desc: 'Complete Grafana URL (overrides host/port)' }),
+  
+  // Authentication
+  GRAFANA_ADMIN_USER: str({ default: 'admin', desc: 'Grafana admin username' }),
+  GRAFANA_ADMIN_PASSWORD: str({ default: 'admin', desc: 'Grafana admin password' }),
+  
+  // Security Settings
+  GRAFANA_ALLOW_SIGN_UP: bool({ default: false, desc: 'Allow user sign up' }),
+  GRAFANA_SECRET_KEY: str({ default: '', desc: 'Grafana secret key for encryption' }),
+  
+  // Database Settings
+  GRAFANA_DATABASE_TYPE: str({ 
+    default: 'sqlite3', 
+    choices: ['mysql', 'postgres', 'sqlite3'],
+    desc: 'Grafana database type' 
+  }),
+  GRAFANA_DATABASE_URL: str({ default: '', desc: 'Grafana database URL' }),
+  
+  // Feature Flags
+  GRAFANA_DISABLE_GRAVATAR: bool({ default: true, desc: 'Disable Gravatar avatars' }),
+  GRAFANA_ENABLE_GZIP: bool({ default: true, desc: 'Enable gzip compression' }),
+});
+
+// Export typed configuration objects
+export type PrometheusConfig = typeof prometheusConfig;
+export type GrafanaConfig = typeof grafanaConfig;
+
+// Export individual config values for convenience
+export const {
+  PROMETHEUS_HOST,
+  PROMETHEUS_PORT,
+  PROMETHEUS_URL,
+  PROMETHEUS_USERNAME,
+  PROMETHEUS_PASSWORD,
+  PROMETHEUS_SCRAPE_INTERVAL,
+  PROMETHEUS_EVALUATION_INTERVAL,
+  PROMETHEUS_RETENTION_TIME,
+  PROMETHEUS_TLS_ENABLED,
+  PROMETHEUS_TLS_INSECURE,
+} = prometheusConfig;
+
+export const {
+  GRAFANA_HOST,
+  GRAFANA_PORT,
+  GRAFANA_URL,
+  GRAFANA_ADMIN_USER,
+  GRAFANA_ADMIN_PASSWORD,
+  GRAFANA_ALLOW_SIGN_UP,
+  GRAFANA_SECRET_KEY,
+  GRAFANA_DATABASE_TYPE,
+  GRAFANA_DATABASE_URL,
+  GRAFANA_DISABLE_GRAVATAR,
+  GRAFANA_ENABLE_GZIP,
+} = grafanaConfig;