mirror of
https://github.com/kubenetworks/kubevpn.git
synced 2025-10-31 10:46:35 +08:00
109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
package dev
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import (
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"context"
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"fmt"
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"io"
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"strings"
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"syscall"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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)
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type RunOptions struct {
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createOptions
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Detach bool
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sigProxy bool
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detachKeys string
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}
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func attachContainer(ctx context.Context, dockerCli command.Cli, errCh *chan error, config *container.Config, containerID string) (func(), error) {
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options := types.ContainerAttachOptions{
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Stream: true,
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Stdin: config.AttachStdin,
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Stdout: config.AttachStdout,
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Stderr: config.AttachStderr,
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DetachKeys: dockerCli.ConfigFile().DetachKeys,
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}
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resp, errAttach := dockerCli.Client().ContainerAttach(ctx, containerID, options)
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if errAttach != nil {
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return nil, fmt.Errorf("failed to attach to container: %s, err: %v", containerID, errAttach)
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}
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var (
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out, cerr io.Writer
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in io.ReadCloser
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)
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if config.AttachStdin {
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in = dockerCli.In()
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}
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if config.AttachStdout {
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out = dockerCli.Out()
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}
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if config.AttachStderr {
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if config.Tty {
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cerr = dockerCli.Out()
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} else {
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cerr = dockerCli.Err()
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}
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}
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ch := make(chan error, 1)
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*errCh = ch
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if in != nil && out != nil && cerr != nil {
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}
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go func() {
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ch <- func() error {
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streamer := hijackedIOStreamer{
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streams: dockerCli,
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inputStream: in,
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outputStream: out,
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errorStream: cerr,
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resp: resp,
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tty: config.Tty,
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detachKeys: options.DetachKeys,
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}
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if errHijack := streamer.stream(ctx); errHijack != nil {
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return errHijack
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}
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return errAttach
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}()
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}()
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return resp.Close, nil
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}
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// reportError is a utility method that prints a user-friendly message
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// containing the error that occurred during parsing and a suggestion to get help
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func reportError(stderr io.Writer, name string, str string, withHelp bool) {
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str = strings.TrimSuffix(str, ".") + "."
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if withHelp {
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str += "\nSee 'docker " + name + " --help'."
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}
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_, _ = fmt.Fprintln(stderr, "docker:", str)
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}
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// if container start fails with 'not found'/'no such' error, return 127
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// if container start fails with 'permission denied' error, return 126
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// return 125 for generic docker daemon failures
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func runStartContainerErr(err error) error {
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trimmedErr := strings.TrimPrefix(err.Error(), "Error response from daemon: ")
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statusError := cli.StatusError{StatusCode: 125}
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if strings.Contains(trimmedErr, "executable file not found") ||
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strings.Contains(trimmedErr, "no such file or directory") ||
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strings.Contains(trimmedErr, "system cannot find the file specified") {
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statusError = cli.StatusError{StatusCode: 127}
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} else if strings.Contains(trimmedErr, syscall.EACCES.Error()) {
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statusError = cli.StatusError{StatusCode: 126}
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}
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return statusError
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}
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