kubeshark/cmd/proxyRunner.go

108 lines
2.8 KiB
Go

package cmd
import (
"context"
"fmt"
"net/http"
"github.com/kubeshark/kubeshark/config"
"github.com/kubeshark/kubeshark/config/configStructs"
"github.com/kubeshark/kubeshark/internal/connect"
"github.com/kubeshark/kubeshark/kubernetes"
"github.com/kubeshark/kubeshark/misc"
"github.com/kubeshark/kubeshark/utils"
"github.com/rs/zerolog/log"
)
func runProxy(block bool, noBrowser bool) {
kubernetesProvider, err := getKubernetesProviderForCli(false, false)
if err != nil {
return
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
exists, err := kubernetesProvider.DoesServiceExist(ctx, config.Config.Tap.Release.Namespace, kubernetes.FrontServiceName)
if err != nil {
log.Error().
Str("service", kubernetes.FrontServiceName).
Err(err).
Msg("Failed to found service!")
cancel()
return
}
if !exists {
log.Error().
Str("service", kubernetes.FrontServiceName).
Str("command", fmt.Sprintf("%s %s", misc.Program, tapCmd.Use)).
Msg("Service not found! You should run the command first:")
cancel()
return
}
exists, err = kubernetesProvider.DoesServiceExist(ctx, config.Config.Tap.Release.Namespace, kubernetes.HubServiceName)
if err != nil {
log.Error().
Str("service", kubernetes.HubServiceName).
Err(err).
Msg("Failed to found service!")
cancel()
return
}
if !exists {
log.Error().
Str("service", kubernetes.HubServiceName).
Str("command", fmt.Sprintf("%s %s", misc.Program, tapCmd.Use)).
Msg("Service not found! You should run the command first:")
cancel()
return
}
var establishedProxy bool
frontUrl := kubernetes.GetProxyOnPort(config.Config.Tap.Proxy.Front.Port)
response, err := http.Get(fmt.Sprintf("%s/", frontUrl))
if err == nil && response.StatusCode == 200 {
log.Info().
Str("service", kubernetes.FrontServiceName).
Int("port", int(config.Config.Tap.Proxy.Front.Port)).
Msg("Found a running service.")
okToOpen("Kubeshark", frontUrl, noBrowser)
} else {
startProxyReportErrorIfAny(
kubernetesProvider,
ctx,
kubernetes.FrontServiceName,
kubernetes.FrontPodName,
configStructs.ProxyFrontPortLabel,
config.Config.Tap.Proxy.Front.Port,
configStructs.ContainerPort,
"",
)
connector := connect.NewConnector(frontUrl, connect.DefaultRetries, connect.DefaultTimeout)
if err := connector.TestConnection(""); err != nil {
log.Error().Msg(fmt.Sprintf(utils.Red, "Couldn't connect to Front."))
return
}
establishedProxy = true
okToOpen("Kubeshark", frontUrl, noBrowser)
}
if establishedProxy && block {
utils.WaitForTermination(ctx, cancel)
}
}
func okToOpen(name string, url string, noBrowser bool) {
log.Info().Str("url", url).Msg(fmt.Sprintf(utils.Green, fmt.Sprintf("%s is available at:", name)))
if !config.Config.HeadlessMode && !noBrowser {
utils.OpenBrowser(url)
}
}