feat: add mini bash script version

Author: zeromake

internal/command/cli.go

@@ -332,7 +332,7 @@ func (cli *DebugCli) CreateContainer(attachContainer string, options execOptions
 	}
 	hostConfig := &container.HostConfig{
 		NetworkMode: container.NetworkMode(targetName),
-		UsernsMode:  container.UsernsMode(targetName),
+		UsernsMode:  container.UsernsMode(":" + attachContainer),
 		PidMode:     container.PidMode(targetName),
 		Mounts:      mounts,
 		SecurityOpt: options.securityOpts,

internal/config/config.go

@@ -68,7 +68,7 @@ type Config struct {
 	ReadTimeout         time.Duration            `toml:"read_timeout"`
 }
 
-// Save save to default file
+// Save to default file
 func (c *Config) Save() error {
 	file, err := os.OpenFile(File, os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0644)
 	if err != nil {

pkg/tty/hijack.go

@@ -145,7 +145,7 @@ func (h *HijackedIOStreamer) beginOutputStream(restoreInput func()) <-chan error
 
 var errInvalidWrite = errors.New("invalid write result")
 
-func Copy(ctx context.Context, dst net.Conn, src io.Reader, readTimeout time.Duration) (written int64, err error) {
+func Copy(ctx context.Context, dst net.Conn, src io.Reader, writeTimeout time.Duration) (written int64, err error) {
 	size := 32 * 1024
 	buf := make([]byte, size)
 	for {
@@ -158,8 +158,8 @@ func Copy(ctx context.Context, dst net.Conn, src io.Reader, readTimeout time.Dur
 		nr, er := src.Read(buf)
 		if nr > 0 {
 			// docker container is stop check
-			if readTimeout > 0 {
-				err = dst.SetReadDeadline(time.Now().Add(readTimeout))
+			if writeTimeout > 0 {
+				err = dst.SetReadDeadline(time.Now().Add(writeTimeout))
 				if err != nil {
 					break
 				}

shell/docker-debug.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -e
+
+inspectInfo=$(docker inspect "$1")
+containerId=$(echo "$inspectInfo" | grep "Id" | cut -d'"' -f 4)
+mergedDir=$(echo "$inspectInfo" | grep "MergedDir" | cut -d'"' -f 4)
+targetName="container:$containerId"
+name=$(docker run --network $targetName --pid $targetName --stop-signal SIGKILL -v $mergedDir:/mnt/container --rm -it -d nicolaka/netshoot:latest /usr/bin/env sh)
+args="${@:2}"
+docker exec -it "$name" $args
+docker stop "$name" > /dev/null &