feat: 添加memory-mode-available，使用available内存

cmd/flags/flag.go

@@ -1,12 +1,13 @@
 package flags
 
 var (
-	DisableAutoUpdate bool
-	DisableWebSsh     bool
-	Token             string
-	Endpoint          string
-	Interval          float64
-	IgnoreUnsafeCert  bool
-	MaxRetries        int
-	ReconnectInterval int
+	DisableAutoUpdate   bool
+	DisableWebSsh       bool
+	MemoryModeAvailable bool
+	Token               string
+	Endpoint            string
+	Interval            float64
+	IgnoreUnsafeCert    bool
+	MaxRetries          int
+	ReconnectInterval   int
 )

cmd/root.go

@@ -58,8 +58,9 @@ func init() {
 	RootCmd.MarkPersistentFlagRequired("token")
 	RootCmd.PersistentFlags().StringVarP(&flags.Endpoint, "endpoint", "e", "", "API endpoint")
 	RootCmd.MarkPersistentFlagRequired("endpoint")
-	RootCmd.PersistentFlags().BoolVarP(&flags.DisableAutoUpdate, "disable-auto-update", "d", false, "Disable automatic updates")
-	RootCmd.PersistentFlags().BoolVarP(&flags.DisableWebSsh, "disable-web-ssh", "w", false, "Disable web SSH")
+	RootCmd.PersistentFlags().BoolVar(&flags.DisableAutoUpdate, "disable-auto-update", false, "Disable automatic updates")
+	RootCmd.PersistentFlags().BoolVar(&flags.DisableWebSsh, "disable-web-ssh", false, "Disable remote control(web ssh and rce)")
+	RootCmd.PersistentFlags().BoolVar(&flags.MemoryModeAvailable, "memory-mode-available", false, "Report memory as available instead of used.")
 	RootCmd.PersistentFlags().Float64VarP(&flags.Interval, "interval", "i", 1.0, "Interval in seconds")
 	RootCmd.PersistentFlags().BoolVarP(&flags.IgnoreUnsafeCert, "ignore-unsafe-cert", "u", false, "Ignore unsafe certificate errors")
 	RootCmd.PersistentFlags().IntVarP(&flags.MaxRetries, "max-retries", "r", 3, "Maximum number of retries")

monitoring/unit/mem.go

@@ -1,6 +1,7 @@
 package monitoring
 
 import (
+	"github.com/komari-monitor/komari-agent/cmd/flags"
 	"github.com/shirou/gopsutil/mem"
 )
 
@@ -15,10 +16,16 @@ func Ram() RamInfo {
 	if err != nil {
 		raminfo.Total = 0
 		raminfo.Used = 0
-	} else {
-		raminfo.Total = v.Total
-		raminfo.Used = v.Used
+		return raminfo
 	}
+	if flags.MemoryModeAvailable {
+		raminfo.Total = v.Total
+		raminfo.Used = v.Total - v.Available
+		return raminfo
+	}
+	raminfo.Total = v.Total
+	raminfo.Used = v.Used
+
 	return raminfo
 }
 func Swap() RamInfo {