kiss server monitoring tool with email alerts
go
monitoring
feat: send email on start
+40
+1
.gitignore
+1
.gitignore
+39
main.go
+39
main.go
···
12
12
"runtime/debug"
13
13
"strings"
14
14
"syscall"
15
+
"time"
15
16
16
17
"github.com/spf13/cobra"
17
18
)
···
101
102
cmd.Println("Servmon started successfully. Monitoring active.")
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103
cmd.Println("Press Ctrl+C to stop.")
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104
105
+
// Send email notification that monitoring is now active
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+
go func() {
107
+
hostname, err := os.Hostname()
108
+
if err != nil {
109
+
hostname = "unknown"
110
+
}
111
+
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+
subject := fmt.Sprintf("Monitoring Active on %s", hostname)
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+
body := fmt.Sprintf("ServMon has started successfully and is now actively monitoring:\n\n"+
114
+
"- CPU threshold: %.1f%%\n"+
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+
"- Memory threshold: %.1f%%\n"+
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+
"- Disk paths: %s\n",
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+
cfg.AlertThresholds.CPU.Threshold,
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+
cfg.AlertThresholds.Memory.Threshold,
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+
getDiskPaths(cfg))
120
+
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+
if cfg.AlertThresholds.HTTP.URL != "" {
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+
body += fmt.Sprintf("- HTTP endpoint: %s\n", cfg.AlertThresholds.HTTP.URL)
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+
}
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+
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+
body += fmt.Sprintf("\nMonitoring started at: %s", time.Now().Format(time.RFC1123))
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+
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+
if err := sendEmail(subject, body, cfg); err != nil {
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+
cmd.Printf("Warning: Failed to send monitoring active notification: %v\n", err)
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+
} else {
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+
cmd.Println("Monitoring active notification sent successfully.")
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+
}
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+
}()
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+
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134
// Wait for shutdown signal
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135
sig := <-sigChan
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136
cmd.Printf("\nReceived signal %v, shutting down gracefully...\n", sig)
···
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189
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190
return strings.TrimSpace(version.Main.Version), nil
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191
}
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+
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+
// getDiskPaths returns a comma-separated list of monitored disk paths
194
+
func getDiskPaths(cfg *Config) string {
195
+
var paths []string
196
+
for _, disk := range cfg.AlertThresholds.Disks {
197
+
paths = append(paths, disk.Path)
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+
}
199
+
return strings.Join(paths, ", ")
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+
}