mirror of
https://github.com/kubeshark/kubeshark.git
synced 2025-06-01 20:46:56 +00:00
ba126dff51
* Add `X-Kubeshark-Capture: ignore` header to all of the HTTP requests * Add `X-Kubeshark-Capture: ignore` header to WebSocket requests * Reduce duplication
117 lines
2.9 KiB
Go
117 lines
2.9 KiB
Go
package cmd
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import (
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"fmt"
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"net/http"
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"net/url"
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"os"
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"os/signal"
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"strings"
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"time"
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"github.com/creasty/defaults"
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"github.com/gorilla/websocket"
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"github.com/kubeshark/kubeshark/config"
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"github.com/kubeshark/kubeshark/config/configStructs"
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"github.com/kubeshark/kubeshark/kubernetes"
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"github.com/kubeshark/kubeshark/utils"
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"github.com/rs/zerolog/log"
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"github.com/spf13/cobra"
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)
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var consoleCmd = &cobra.Command{
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Use: "console",
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Short: "Stream the scripting console logs into shell",
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RunE: func(cmd *cobra.Command, args []string) error {
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runConsole()
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return nil
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},
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}
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func init() {
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rootCmd.AddCommand(consoleCmd)
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defaultTapConfig := configStructs.TapConfig{}
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if err := defaults.Set(&defaultTapConfig); err != nil {
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log.Debug().Err(err).Send()
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}
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consoleCmd.Flags().Uint16(configStructs.ProxyFrontPortLabel, defaultTapConfig.Proxy.Front.Port, "Provide a custom port for the Kubeshark")
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consoleCmd.Flags().String(configStructs.ProxyHostLabel, defaultTapConfig.Proxy.Host, "Provide a custom host for the Kubeshark")
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consoleCmd.Flags().StringP(configStructs.ReleaseNamespaceLabel, "s", defaultTapConfig.Release.Namespace, "Release namespace of Kubeshark")
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}
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func runConsole() {
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hubUrl := kubernetes.GetHubUrl()
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response, err := http.Get(fmt.Sprintf("%s/echo", hubUrl))
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if err != nil || response.StatusCode != 200 {
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log.Info().Msg(fmt.Sprintf(utils.Yellow, "Couldn't connect to Hub. Establishing proxy..."))
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runProxy(false, true)
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}
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interrupt := make(chan os.Signal, 1)
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signal.Notify(interrupt, os.Interrupt)
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log.Info().Str("host", config.Config.Tap.Proxy.Host).Str("url", hubUrl).Msg("Connecting to:")
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u := url.URL{
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Scheme: "ws",
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Host: fmt.Sprintf("%s:%d/api", config.Config.Tap.Proxy.Host, config.Config.Tap.Proxy.Front.Port),
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Path: "/scripts/logs",
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}
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headers := http.Header{}
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headers.Set(utils.X_KUBESHARK_CAPTURE_HEADER_KEY, utils.X_KUBESHARK_CAPTURE_HEADER_IGNORE_VALUE)
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headers.Set("License-Key", config.Config.License)
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c, _, err := websocket.DefaultDialer.Dial(u.String(), headers)
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if err != nil {
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log.Error().Err(err).Send()
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return
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}
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defer c.Close()
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done := make(chan struct{})
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go func() {
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defer close(done)
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for {
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_, message, err := c.ReadMessage()
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if err != nil {
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log.Error().Err(err).Send()
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return
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}
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msg := string(message)
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if strings.Contains(msg, ":ERROR]") {
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msg = fmt.Sprintf(utils.Red, msg)
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fmt.Fprintln(os.Stderr, msg)
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} else {
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fmt.Fprintln(os.Stdout, msg)
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}
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}
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}()
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ticker := time.NewTicker(time.Second)
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defer ticker.Stop()
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for {
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select {
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case <-done:
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return
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case <-interrupt:
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log.Warn().Msg(fmt.Sprintf(utils.Yellow, "Received interrupt, exiting..."))
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err := c.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
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if err != nil {
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log.Error().Err(err).Send()
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return
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}
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select {
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case <-done:
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case <-time.After(time.Second):
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}
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return
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}
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}
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}
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