[MM-58393] server/plugin: ensure metrics are enabled on server (#34)

server/plugin.go

@@ -119,6 +119,17 @@ func (p *Plugin) OnActivate() error {
 		p.singletonLockAcquired = true
 	}
 
+	// The metrics plugin is dependent on the metrics endpoint being expoesed, so we need to ensure it is enabled.
+	if cfg := p.API.GetUnsanitizedConfig(); cfg.MetricsSettings.Enable == nil || !*cfg.MetricsSettings.Enable {
+		if lic := p.API.GetLicense(); lic != nil && *lic.Features.Metrics {
+			p.API.LogInfo("Enabling metrics...")
+			cfg.MetricsSettings.Enable = mmModel.NewBool(true)
+			if err2 := p.API.SaveConfig(cfg); err2 != nil {
+				return fmt.Errorf("failed to save config: %w", err2)
+			}
+		}
+	}
+
 	p.closeChan = make(chan bool)
 	p.waitGroup = sync.WaitGroup{}