mirror of
https://github.com/kubeshark/kubeshark.git
synced 2026-01-15 22:38:39 +00:00
86fd616b84
* Use `github.com/rs/zerolog` for logging * Use `github.com/rs/zerolog` for logging (continue) * Add `debug` flag * Remove `github.com/op/go-logging` dependency completely * Fix linter
83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
package check
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import (
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"context"
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"regexp"
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"github.com/kubeshark/kubeshark/config"
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"github.com/kubeshark/kubeshark/internal/connect"
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"github.com/kubeshark/kubeshark/kubernetes"
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"github.com/rs/zerolog/log"
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)
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func ServerConnection(kubernetesProvider *kubernetes.Provider) bool {
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log.Info().Msg("[hub-connectivity]")
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serverUrl := kubernetes.GetLocalhostOnPort(config.Config.Hub.PortForward.SrcPort)
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connector := connect.NewConnector(serverUrl, 1, connect.DefaultTimeout)
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if err := connector.TestConnection(""); err == nil {
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log.Info().Msg("Found Kubeshark server tunnel available and connected successfully to Hub!")
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return true
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}
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connectedToHub := false
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if err := checkProxy(serverUrl, kubernetesProvider); err != nil {
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log.Error().Err(err).Msg("Couldn't connect to Hub using proxy!")
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} else {
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connectedToHub = true
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log.Info().Msg("Connected successfully to Hub using proxy.")
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}
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if err := checkPortForward(serverUrl, kubernetesProvider); err != nil {
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log.Error().Err(err).Msg("Couldn't connect to Hub using port-forward!")
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} else {
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connectedToHub = true
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log.Info().Msg("Connected successfully to Hub using port-forward.")
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}
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return connectedToHub
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}
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func checkProxy(serverUrl string, kubernetesProvider *kubernetes.Provider) error {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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httpServer, err := kubernetes.StartProxy(kubernetesProvider, config.Config.Tap.ProxyHost, config.Config.Hub.PortForward.SrcPort, config.Config.Hub.PortForward.DstPort, config.Config.ResourcesNamespace, kubernetes.HubServiceName, cancel)
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if err != nil {
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return err
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}
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connector := connect.NewConnector(serverUrl, connect.DefaultRetries, connect.DefaultTimeout)
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if err := connector.TestConnection(""); err != nil {
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return err
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}
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if err := httpServer.Shutdown(ctx); err != nil {
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log.Error().Err(err).Msg("While stopping the proxy!")
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}
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return nil
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}
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func checkPortForward(serverUrl string, kubernetesProvider *kubernetes.Provider) error {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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podRegex, _ := regexp.Compile(kubernetes.HubPodName)
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forwarder, err := kubernetes.NewPortForward(kubernetesProvider, config.Config.ResourcesNamespace, podRegex, config.Config.Tap.GuiPort, config.Config.Tap.GuiPort, ctx, cancel)
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if err != nil {
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return err
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}
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connector := connect.NewConnector(serverUrl, connect.DefaultRetries, connect.DefaultTimeout)
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if err := connector.TestConnection(""); err != nil {
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return err
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}
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forwarder.Close()
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return nil
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}
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