feat: Implement comprehensive multi-channel notification system with templating and SSL monitoring
- Add robust notification system supporting 7+ communication channels with intelligent message templating, resource monitoring, and SSL certificate alerts. Notification Channels: (Telegram, Discord, Slack, Signal, Email, Google Chat, Webhooks). - This notification system provides enterprise-grade alerting capabilities with extensive customization options and multi-channel redundancy for critical service monitoring.
This commit is contained in:
Tola Leng
@@ -0,0 +1,236 @@
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package servermonitoring
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import (
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"time"
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"service-operation/notification"
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"service-operation/pocketbase"
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)
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// ServerNotificationService handles server-specific notifications
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type ServerNotificationService struct {
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notificationManager *notification.NotificationManager
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}
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// NewServerNotificationService creates a new server notification service
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func NewServerNotificationService(pbClient *pocketbase.PocketBaseClient) *ServerNotificationService {
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// log.Println("🔧 Creating new ServerNotificationService instance")
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return &ServerNotificationService{
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notificationManager: notification.NewNotificationManager(pbClient),
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}
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}
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// SendResourceNotification sends a resource-specific notification (CPU, RAM, Disk, etc.)
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func (sns *ServerNotificationService) SendResourceNotification(server Server, status string, message string, resourceType string) error {
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return sns.SendResourceNotificationWithValues(server, status, message, resourceType, "N/A", "N/A")
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}
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// SendResourceNotificationWithValues sends a resource-specific notification with actual usage and threshold values
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func (sns *ServerNotificationService) SendResourceNotificationWithValues(server Server, status string, message string, resourceType string, usageValue string, thresholdValue string) error {
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// log.Printf("📨 === SENDING RESOURCE NOTIFICATION WITH VALUES ===")
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// log.Printf("🔔 SendResourceNotificationWithValues called for server: %s", server.Name)
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// log.Printf("📊 Resource Notification Parameters:")
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// log.Printf(" - Server Name: %s", server.Name)
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// log.Printf(" - Resource Type: %s", resourceType)
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// log.Printf(" - Status: %s", status)
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// log.Printf(" - Message: %s", message)
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// log.Printf(" - Usage Value: %s", usageValue)
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// log.Printf(" - Threshold Value: %s", thresholdValue)
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// log.Printf(" - Notification ID: '%s'", server.NotificationID)
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// log.Printf(" - Template ID: '%s'", server.TemplateID)
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// Validate notification configuration
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if server.NotificationID == "" {
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// log.Printf("❌ NOTIFICATION FAILED: No notification ID configured for server %s", server.Name)
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return nil
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}
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// Get server metrics for notification
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cpuUsage, ramUsage, diskUsage, networkUsage, cpuTemp, diskIO := sns.getServerMetrics(server.ServerID)
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// Override specific resource metric with actual value
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switch resourceType {
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case "cpu":
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cpuUsage = usageValue
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case "ram", "memory":
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ramUsage = usageValue
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case "disk":
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diskUsage = usageValue
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case "network":
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networkUsage = usageValue
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case "cpu_temp", "cpu_temperature":
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cpuTemp = usageValue
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case "disk_io":
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diskIO = usageValue
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}
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// Convert to generic notification payload
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notificationPayload := ¬ification.NotificationPayload{
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ServiceName: server.Name,
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Status: status,
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Host: server.IPAddress,
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Hostname: server.Hostname,
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Port: 0,
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ServiceType: "server",
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ResponseTime: 0,
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Timestamp: time.Now(),
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Message: message,
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// Server monitoring metrics
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CPUUsage: cpuUsage,
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RAMUsage: ramUsage,
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DiskUsage: diskUsage,
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NetworkUsage: networkUsage,
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CPUTemp: cpuTemp,
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DiskIO: diskIO,
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Threshold: thresholdValue,
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}
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// log.Printf("📤 About to call SendResourceNotification...")
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// log.Printf(" - Resource Type: %s", resourceType)
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// log.Printf(" - Notification ID: %s", server.NotificationID)
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// log.Printf(" - Template ID: %s", server.TemplateID)
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// log.Printf(" - Usage Value: %s", usageValue)
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// log.Printf(" - Threshold Value: %s", thresholdValue)
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// Send resource-specific notification using the notification manager
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err := sns.notificationManager.SendResourceNotification(notificationPayload, server.NotificationID, server.TemplateID, resourceType)
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if err != nil {
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// log.Printf("❌ RESOURCE NOTIFICATION ERROR for server %s: %v", server.Name, err)
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return err
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}
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// log.Printf("✅ RESOURCE NOTIFICATION SENT SUCCESSFULLY for server %s (%s)", server.Name, resourceType)
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// log.Printf("=== RESOURCE NOTIFICATION COMPLETE ===")
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return nil
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}
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// SendServerNotification sends a notification for server status change
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func (sns *ServerNotificationService) SendServerNotification(server Server, status string, message string) error {
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// log.Printf("📨 === SENDING SERVER NOTIFICATION ===")
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// log.Printf("🔔 SendServerNotification called for server: %s", server.Name)
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// log.Printf("📊 Notification Parameters:")
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// log.Printf(" - Server Name: %s", server.Name)
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// log.Printf(" - Server ID: %s", server.ServerID)
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// log.Printf(" - Status: %s", status)
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// log.Printf(" - Message: %s", message)
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// log.Printf(" - Notification ID: '%s'", server.NotificationID)
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// log.Printf(" - Template ID: '%s'", server.TemplateID)
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// log.Printf(" - IP Address: %s", server.IPAddress)
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// log.Printf(" - Hostname: %s", server.Hostname)
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// Validate notification configuration
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if server.NotificationID == "" {
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// log.Printf("❌ NOTIFICATION FAILED: No notification ID configured for server %s", server.Name)
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return nil
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}
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// log.Printf("✅ Notification ID validation passed: %s", server.NotificationID)
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// Get server metrics for notification
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cpuUsage, ramUsage, diskUsage, networkUsage, cpuTemp, diskIO := sns.getServerMetrics(server.ServerID)
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// Convert to generic notification payload
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// log.Printf("🔄 Converting to generic notification payload...")
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notificationPayload := ¬ification.NotificationPayload{
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ServiceName: server.Name,
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Status: status,
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Host: server.IPAddress,
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Hostname: server.Hostname,
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Port: 0, // Servers don't have ports
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ServiceType: "server",
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ResponseTime: 0,
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Timestamp: time.Now(),
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Message: message,
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// Server monitoring metrics
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CPUUsage: cpuUsage,
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RAMUsage: ramUsage,
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DiskUsage: diskUsage,
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NetworkUsage: networkUsage,
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CPUTemp: cpuTemp,
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DiskIO: diskIO,
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Threshold: "N/A", // Can be set based on server configuration
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}
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// log.Printf("📦 Generic notification payload created:")
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// log.Printf(" - ServiceName: %s", notificationPayload.ServiceName)
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// log.Printf(" - Status: %s", notificationPayload.Status)
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// log.Printf(" - Host: %s", notificationPayload.Host)
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// log.Printf(" - ServiceType: %s", notificationPayload.ServiceType)
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// log.Printf(" - Message: %s", notificationPayload.Message)
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// log.Printf(" - CPUUsage: %s", notificationPayload.CPUUsage)
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// log.Printf(" - RAMUsage: %s", notificationPayload.RAMUsage)
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// log.Printf(" - DiskUsage: %s", notificationPayload.DiskUsage)
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// log.Printf(" - NetworkUsage: %s", notificationPayload.NetworkUsage)
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// log.Printf(" - CPUTemp: %s", notificationPayload.CPUTemp)
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// log.Printf(" - DiskIO: %s", notificationPayload.DiskIO)
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// log.Printf(" - Timestamp: %v", notificationPayload.Timestamp)
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// log.Printf("📤 About to call SendServiceNotification...")
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// log.Printf(" - Notification ID: %s", server.NotificationID)
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// log.Printf(" - Template ID: %s", server.TemplateID)
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// Send notification using the notification manager
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err := sns.notificationManager.SendServiceNotification(notificationPayload, server.NotificationID, server.TemplateID)
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if err != nil {
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// log.Printf("❌ NOTIFICATION MANAGER ERROR for server %s: %v", server.Name, err)
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// log.Printf("❌ Error Details:")
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// log.Printf(" - Error Type: %T", err)
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// log.Printf(" - Error Message: %s", err.Error())
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// log.Printf(" - Notification ID used: %s", server.NotificationID)
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// log.Printf(" - Template ID used: %s", server.TemplateID)
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return err
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}
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// log.Printf("✅ NOTIFICATION SENT SUCCESSFULLY for server %s", server.Name)
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// log.Printf("✅ Notification Details:")
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// log.Printf(" - Status: %s", status)
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// log.Printf(" - Notification ID: %s", server.NotificationID)
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// log.Printf(" - Template ID: %s", server.TemplateID)
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// log.Printf("=== NOTIFICATION COMPLETE ===")
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return nil
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}
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// getServerMetrics retrieves the latest server metrics (placeholder implementation)
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// This should be replaced with actual metric retrieval from your monitoring system
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func (sns *ServerNotificationService) getServerMetrics(serverID string) (cpuUsage, ramUsage, diskUsage, networkUsage, cpuTemp, diskIO string) {
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// TODO: Implement actual metric retrieval from your server monitoring system
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// For now, returning placeholder values
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// You should replace this with actual calls to your metrics collection system
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// log.Printf("🔍 Retrieving server metrics for server ID: %s", serverID)
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// These should be replaced with actual metric values from your monitoring system
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cpuUsage = "N/A"
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ramUsage = "N/A"
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diskUsage = "N/A"
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networkUsage = "N/A"
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cpuTemp = "N/A"
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diskIO = "N/A"
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// Example of how you might retrieve metrics:
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// You could query your metrics database, call an API, or read from system files
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// For example:
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// metrics, err := sns.getLatestMetrics(serverID)
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// if err == nil {
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// cpuUsage = fmt.Sprintf("%.1f%%", metrics.CPUUsage)
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// ramUsage = fmt.Sprintf("%.1f%%", metrics.RAMUsage)
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// diskUsage = fmt.Sprintf("%.1f%%", metrics.DiskUsage)
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// networkUsage = fmt.Sprintf("%.2f MB/s", metrics.NetworkUsage)
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// cpuTemp = fmt.Sprintf("%.1f°C", metrics.CPUTemp)
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// diskIO = fmt.Sprintf("%.2f MB/s", metrics.DiskIO)
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// }
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// log.Printf("📊 Retrieved server metrics:")
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// log.Printf(" - CPU Usage: %s", cpuUsage)
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// log.Printf(" - RAM Usage: %s", ramUsage)
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// log.Printf(" - Disk Usage: %s", diskUsage)
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// log.Printf(" - Network Usage: %s", networkUsage)
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// log.Printf(" - CPU Temperature: %s", cpuTemp)
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// log.Printf(" - Disk I/O: %s", diskIO)
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_ = serverID
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return cpuUsage, ramUsage, diskUsage, networkUsage, cpuTemp, diskIO
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}
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