feat: support check mode for node to node, node to pod, pod to pod

Signed-off-by: baoyinghai_yewu <[email protected]>

pkg/command/check.go

@@ -58,6 +58,9 @@ func NewCheckCmd() *cobra.Command {
 func (o *CheckOptions) LoadConfig() {
 	fromConfig := &share.DoOptions{}
 	if err := utils.ReadOpt(fromConfig); err == nil {
+		if len(fromConfig.Mode) == 0 {
+			fromConfig.Mode = share.Pod
+		}
 		once.Do(func() {
 			klog.Infof("use config from file!!!!!!")
 		})
@@ -79,7 +82,7 @@ func (o *CheckOptions) Complete() error {
 		Version:           o.DoOption.Version,
 		PodWaitTime:       o.DoOption.PodWaitTime,
 		Port:              o.DoOption.Port,
-		EnableHostNetwork: false,
+		EnableHostNetwork: o.DoOption.GetEnableHostNetwork(true),
 		EnableAnalysis:    false,
 	}
 	if err := srcfloater.CompleteFromKubeConfigPath(o.DoOption.SrcKubeConfig, ""); err != nil {
@@ -97,7 +100,7 @@ func (o *CheckOptions) Complete() error {
 			Version:           o.DoOption.Version,
 			PodWaitTime:       o.DoOption.PodWaitTime,
 			Port:              o.DoOption.Port,
-			EnableHostNetwork: false,
+			EnableHostNetwork: o.DoOption.GetEnableHostNetwork(false),
 			EnableAnalysis:    false,
 		}
 		if err := dstfloater.CompleteFromKubeConfigPath(o.DoOption.DstKubeConfig, ""); err != nil {

pkg/command/clean.go

@@ -51,6 +51,9 @@ func NewCleanCmd() *cobra.Command {
 func (o *CleanOptions) LoadConfig() {
 	fromConfig := &share.DoOptions{}
 	if err := utils.ReadOpt(fromConfig); err == nil {
+		if len(fromConfig.Mode) == 0 {
+			fromConfig.Mode = share.Pod
+		}
 		once.Do(func() {
 			klog.Infof("use config from file!!!!!!")
 		})
@@ -68,7 +71,7 @@ func (o *CleanOptions) Complete() error {
 		Version:           o.DoOption.Version,
 		PodWaitTime:       o.DoOption.PodWaitTime,
 		Port:              o.DoOption.Port,
-		EnableHostNetwork: false,
+		EnableHostNetwork: o.DoOption.GetEnableHostNetwork(true),
 		EnableAnalysis:    false,
 	}
 	if err := srcfloater.CompleteFromKubeConfigPath(o.DoOption.SrcKubeConfig, ""); err != nil {
@@ -86,7 +89,7 @@ func (o *CleanOptions) Complete() error {
 			Version:           o.DoOption.Version,
 			PodWaitTime:       o.DoOption.PodWaitTime,
 			Port:              o.DoOption.Port,
-			EnableHostNetwork: false,
+			EnableHostNetwork: o.DoOption.GetEnableHostNetwork(false),
 			EnableAnalysis:    false,
 		}
 		if err := dstfloater.CompleteFromKubeConfigPath(o.DoOption.DstKubeConfig, ""); err != nil {

pkg/command/init.go

@@ -65,6 +65,7 @@ func (o *InitOptions) Run() error {
 		// dst
 		DstImageRepository: "",
 		DstKubeConfig:      "",
+		Mode:               share.Pod,
 	}
 
 	if err := utils.WriteOpt(doOptions); err != nil {

pkg/command/resume.go

@@ -52,6 +52,9 @@ func NewResumeCmd() *cobra.Command {
 func (o *ResumeOptions) LoadConfig() {
 	fromConfig := &share.DoOptions{}
 	if err := utils.ReadOpt(fromConfig); err == nil {
+		if len(fromConfig.Mode) == 0 {
+			fromConfig.Mode = share.Pod
+		}
 		once.Do(func() {
 			klog.Infof("use config from file!!!!!!")
 		})
@@ -72,7 +75,7 @@ func (o *ResumeOptions) Complete() error {
 		Version:           o.DoOption.Version,
 		PodWaitTime:       o.DoOption.PodWaitTime,
 		Port:              o.DoOption.Port,
-		EnableHostNetwork: false,
+		EnableHostNetwork: o.DoOption.GetEnableHostNetwork(true),
 		EnableAnalysis:    false,
 	}
 	if err := srcfloater.CompleteFromKubeConfigPath(o.DoOption.SrcKubeConfig, ""); err != nil {
@@ -90,7 +93,7 @@ func (o *ResumeOptions) Complete() error {
 			Version:           o.DoOption.Version,
 			PodWaitTime:       o.DoOption.PodWaitTime,
 			Port:              o.DoOption.Port,
-			EnableHostNetwork: false,
+			EnableHostNetwork: o.DoOption.GetEnableHostNetwork(false),
 			EnableAnalysis:    false,
 		}
 		if err := dstfloater.CompleteFromKubeConfigPath(o.DoOption.DstKubeConfig, ""); err != nil {

pkg/command/share/do.go

@@ -11,9 +11,19 @@ import (
 	"k8s.io/klog/v2"
 )
 
+type ModeType string
+
+const (
+	Node      ModeType = "node"
+	Pod       ModeType = "pod"
+	NodeToPod ModeType = "node-to-pod"
+	PodToNode ModeType = "pod-to-node"
+)
+
 type DoOptions struct {
-	Namespace string `json:"namespace,omitempty"`
-	Version   string `json:"version,omitempty"`
+	Namespace string   `json:"namespace,omitempty"`
+	Version   string   `json:"version,omitempty"`
+	Mode      ModeType `json:"mode,omitempty"`
 
 	Protocol                 string   `json:"protocol,omitempty"`
 	PodWaitTime              int      `json:"podWaitTime,omitempty"`
@@ -38,33 +48,78 @@ type DoOptions struct {
 	ResumeRecord []*PrintCheckData `json:"-"`
 }
 
+func (o *DoOptions) GetEnableHostNetwork(isSrc bool) bool {
+	if isSrc {
+		switch o.Mode {
+		case Node, NodeToPod:
+			return true
+		case Pod, PodToNode:
+			return false
+		}
+	} else {
+		switch o.Mode {
+		case Node, PodToNode:
+			return true
+		case NodeToPod, Pod:
+			return false
+		}
+	}
+	return false
+}
+
+func (o *DoOptions) GetInfo(floater *Floater, isSrc bool) ([]*FloatInfo, error) {
+	if isSrc {
+		switch o.Mode {
+		case Node, NodeToPod:
+			return floater.GetNodesInfo()
+		case Pod, PodToNode:
+			return floater.GetPodInfo()
+		}
+	} else {
+		switch o.Mode {
+		case Node, PodToNode:
+			return floater.GetNodesInfo()
+		case NodeToPod, Pod:
+			return floater.GetPodInfo()
+		}
+	}
+	return floater.GetPodInfo()
+}
+
 func (o *DoOptions) Run() error {
 	if err := o.SrcFloater.CreateFloater(); err != nil {
 		return err
 	}
 
 	if o.DstKubeConfig != "" {
-		srcPodInfos, err := o.SrcFloater.GetPodInfo()
+		srcInfos, err := o.GetInfo(o.SrcFloater, true)
 		if err != nil {
 			return fmt.Errorf("get src cluster podInfos failed: %s", err)
 		}
 
 		if err = o.DstFloater.CreateFloater(); err != nil {
 			return err
 		}
-		var dstPodInfos []*FloatInfo
-		dstPodInfos, err = o.DstFloater.GetPodInfo()
+		var dstInfos []*FloatInfo
+		dstInfos, err = o.GetInfo(o.DstFloater, false)
 		if err != nil {
 			return fmt.Errorf("get dist cluster podInfos failed: %s", err)
 		}
 
-		PrintResult(o.RunRange(srcPodInfos, dstPodInfos))
+		PrintResult(o.RunRange(srcInfos, dstInfos))
 	} else {
-		srcPodInfos, err := o.SrcFloater.GetPodInfo()
+		srcInfos, err := o.GetInfo(o.SrcFloater, true)
 		if err != nil {
 			return fmt.Errorf("get src cluster podInfos failed: %s", err)
 		}
-		PrintResult(o.RunRange(srcPodInfos, srcPodInfos))
+
+		var dstInfos []*FloatInfo
+		dstInfos, err = o.GetInfo(o.SrcFloater, false)
+		if err != nil {
+			return fmt.Errorf("get dist cluster podInfos failed: %s", err)
+		}
+
+		PrintResult(o.RunRange(srcInfos, dstInfos))
 	}
 
 	if o.AutoClean {
@@ -149,7 +204,13 @@ func (o *DoOptions) RunRange(iPodInfos []*FloatInfo, jPodInfos []*FloatInfo) []*
 			cmdObj = command.NewCmd(o.Protocol, o.TargetHostToLookup, o.TargetDNSServer)
 		} else {
 			for _, jPodInfo := range jPodInfos {
-				for _, ip := range jPodInfo.PodIPs {
+				targetIPs := jPodInfo.PodIPs
+				needWrapper := false
+				if len(jPodInfo.NodeIPs) != 0 {
+					targetIPs = jPodInfo.NodeIPs
+					needWrapper = true
+				}
+				for _, ip := range targetIPs {
 					var targetIP string
 					var err error
 					var cmdResult *command.Result
@@ -163,6 +224,11 @@ func (o *DoOptions) RunRange(iPodInfos []*FloatInfo, jPodInfos []*FloatInfo) []*
 						}
 						// ToDo RunRange && RunNative func support multiple commands, and the code needs to be optimized
 						cmdObj := command.NewCmd(o.Protocol, targetIP, o.Port)
+						if needWrapper {
+							cmdObj = command.Wrapper{
+								Cmd: cmdObj,
+							}
+						}
 						cmdResult = o.SrcFloater.CommandExec(iPodInfo, cmdObj)
 					}
 					mutex.Lock()

pkg/command/share/floater.go

@@ -161,7 +161,21 @@ func (f *Floater) applyDaemonSet() error {
 	if err != nil {
 		return err
 	}
-	_, err = f.Client.AppsV1().DaemonSets(f.Namespace).Create(context.Background(), clusterlinkFloaterDaemonSet, metav1.CreateOptions{})
+
+	applyFunc := func() error {
+		_, err = f.Client.AppsV1().DaemonSets(f.Namespace).Create(context.Background(), clusterlinkFloaterDaemonSet, metav1.CreateOptions{})
+		return err
+	}
+
+	_, err = f.Client.AppsV1().DaemonSets(f.Namespace).Get(context.Background(), f.Name, metav1.GetOptions{})
+	if err == nil {
+		applyFunc = func() error {
+			_, err = f.Client.AppsV1().DaemonSets(f.Namespace).Update(context.Background(), clusterlinkFloaterDaemonSet, metav1.UpdateOptions{})
+			return err
+		}
+	}
+
+	err = applyFunc()
 	if err != nil {
 		if !apierrors.IsAlreadyExists(err) {
 			return fmt.Errorf("linkctl floater run error, daemonset options failed: %v", err)

pkg/command/share/remote-command/ping.go

@@ -3,9 +3,11 @@ package command
 import (
 	"fmt"
 	"regexp"
+
+	"github.com/kosmos.io/netdoctor/pkg/utils"
 )
 
-var pingReg, _ = regexp.Compile(`PING[\s\S]*1\spackets\stransmitted,\s1\spackets\sreceived,\s0[%]\spacket\sloss[\s\S]*$`)
+var pingReg, _ = regexp.Compile(`PING[\s\S]*\s0[%]\spacket\sloss[\s\S]*$`)
 
 type Ping struct {
 	TargetIP string
@@ -17,7 +19,11 @@ func (c *Ping) GetTargetStr() string {
 
 func (c *Ping) GetCommandStr() string {
 	// execute once
-	return fmt.Sprintf("ping -c 1 %s", c.TargetIP)
+	if utils.IsIPv6(c.TargetIP) {
+		return fmt.Sprintf("ping6 -c 1 %s", c.TargetIP)
+	} else {
+		return fmt.Sprintf("ping -c 1 %s", c.TargetIP)
+	}
 }
 
 func (c *Ping) ParseResult(result string) *Result {

pkg/command/share/remote-command/wrapper.go

@@ -0,0 +1,19 @@
+package command
+
+import "fmt"
+
+type Wrapper struct {
+	Cmd Command
+}
+
+func (w Wrapper) GetCommandStr() string {
+	return fmt.Sprintf(`nsenter --target "1" --mount --uts --ipc --net --pid -- %s`, w.Cmd.GetCommandStr())
+}
+
+func (w Wrapper) ParseResult(str string) *Result {
+	return w.Cmd.ParseResult(str)
+}
+
+func (w Wrapper) GetTargetStr() string {
+	return w.Cmd.GetTargetStr()
+}

pkg/manifest/manifest_daemonsets.go

@@ -41,6 +41,7 @@ spec:
             value: "{{ .Port }}"
           - name: "ENABLE_ANALYSIS"
             value: "{{ .EnableAnalysis }}"
+      hostPID: true
       tolerations:
       - effect: NoSchedule
         operator: Exists

pkg/utils/constants.go

@@ -11,6 +11,6 @@ type Protocol string
 const (
 	TCP  Protocol = "tcp"
 	UDP  Protocol = "udp"
-	IPv4 Protocol = "ipv4"
+	ICMP Protocol = "icmp"
 	DNS  Protocol = "dns"
 )