mirror of
https://github.com/kubeshark/kubeshark.git
synced 2025-05-02 13:56:16 +00:00
cb60a4cc4c
* Remove `logger` module * Remove `shared` module * Move `cli` folder contents into project root * Fix linter * Change the module name from `github.com/kubeshark/kubeshark/cli` to `github.com/kubeshark/kubeshark` * Set the default `Makefile` rule to `build` * Add `lint` rule * Fix the linter errors
85 lines
2.8 KiB
Go
85 lines
2.8 KiB
Go
package check
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"regexp"
|
|
|
|
"github.com/kubeshark/kubeshark/apiserver"
|
|
"github.com/kubeshark/kubeshark/config"
|
|
"github.com/kubeshark/kubeshark/kubernetes"
|
|
"github.com/kubeshark/kubeshark/uiUtils"
|
|
)
|
|
|
|
func ServerConnection(kubernetesProvider *kubernetes.Provider) bool {
|
|
log.Printf("\nAPI-server-connectivity\n--------------------")
|
|
|
|
serverUrl := kubernetes.GetLocalhostOnPort(config.Config.Hub.PortForward.SrcPort)
|
|
|
|
apiServerProvider := apiserver.NewProvider(serverUrl, 1, apiserver.DefaultTimeout)
|
|
if err := apiServerProvider.TestConnection(""); err == nil {
|
|
log.Printf("%v found Kubeshark server tunnel available and connected successfully to API server", fmt.Sprintf(uiUtils.Green, "√"))
|
|
return true
|
|
}
|
|
|
|
connectedToApiServer := false
|
|
|
|
if err := checkProxy(serverUrl, kubernetesProvider); err != nil {
|
|
log.Printf("%v couldn't connect to API server using proxy, err: %v", fmt.Sprintf(uiUtils.Red, "✗"), err)
|
|
} else {
|
|
connectedToApiServer = true
|
|
log.Printf("%v connected successfully to API server using proxy", fmt.Sprintf(uiUtils.Green, "√"))
|
|
}
|
|
|
|
if err := checkPortForward(serverUrl, kubernetesProvider); err != nil {
|
|
log.Printf("%v couldn't connect to API server using port-forward, err: %v", fmt.Sprintf(uiUtils.Red, "✗"), err)
|
|
} else {
|
|
connectedToApiServer = true
|
|
log.Printf("%v connected successfully to API server using port-forward", fmt.Sprintf(uiUtils.Green, "√"))
|
|
}
|
|
|
|
return connectedToApiServer
|
|
}
|
|
|
|
func checkProxy(serverUrl string, kubernetesProvider *kubernetes.Provider) error {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
httpServer, err := kubernetes.StartProxy(kubernetesProvider, config.Config.Tap.ProxyHost, config.Config.Hub.PortForward.SrcPort, config.Config.Hub.PortForward.DstPort, config.Config.KubesharkResourcesNamespace, kubernetes.ApiServerPodName, cancel)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
apiServerProvider := apiserver.NewProvider(serverUrl, apiserver.DefaultRetries, apiserver.DefaultTimeout)
|
|
if err := apiServerProvider.TestConnection(""); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := httpServer.Shutdown(ctx); err != nil {
|
|
log.Printf("Error occurred while stopping proxy, err: %v", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func checkPortForward(serverUrl string, kubernetesProvider *kubernetes.Provider) error {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
podRegex, _ := regexp.Compile(kubernetes.ApiServerPodName)
|
|
forwarder, err := kubernetes.NewPortForward(kubernetesProvider, config.Config.KubesharkResourcesNamespace, podRegex, config.Config.Tap.GuiPort, config.Config.Tap.GuiPort, ctx, cancel)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
apiServerProvider := apiserver.NewProvider(serverUrl, apiserver.DefaultRetries, apiserver.DefaultTimeout)
|
|
if err := apiServerProvider.TestConnection(""); err != nil {
|
|
return err
|
|
}
|
|
|
|
forwarder.Close()
|
|
|
|
return nil
|
|
}
|