| package client // import "github.com/docker/docker/client" |
| |
| import ( |
| "context" |
| "net/url" |
| |
| "github.com/docker/docker/api/types" |
| ) |
| |
| // ContainerAttach attaches a connection to a container in the server. |
| // It returns a types.HijackedConnection with the hijacked connection |
| // and the a reader to get output. It's up to the called to close |
| // the hijacked connection by calling types.HijackedResponse.Close. |
| // |
| // The stream format on the response will be in one of two formats: |
| // |
| // If the container is using a TTY, there is only a single stream (stdout), and |
| // data is copied directly from the container output stream, no extra |
| // multiplexing or headers. |
| // |
| // If the container is *not* using a TTY, streams for stdout and stderr are |
| // multiplexed. |
| // The format of the multiplexed stream is as follows: |
| // |
| // [8]byte{STREAM_TYPE, 0, 0, 0, SIZE1, SIZE2, SIZE3, SIZE4}[]byte{OUTPUT} |
| // |
| // STREAM_TYPE can be 1 for stdout and 2 for stderr |
| // |
| // SIZE1, SIZE2, SIZE3, and SIZE4 are four bytes of uint32 encoded as big endian. |
| // This is the size of OUTPUT. |
| // |
| // You can use github.com/docker/docker/pkg/stdcopy.StdCopy to demultiplex this |
| // stream. |
| func (cli *Client) ContainerAttach(ctx context.Context, container string, options types.ContainerAttachOptions) (types.HijackedResponse, error) { |
| query := url.Values{} |
| if options.Stream { |
| query.Set("stream", "1") |
| } |
| if options.Stdin { |
| query.Set("stdin", "1") |
| } |
| if options.Stdout { |
| query.Set("stdout", "1") |
| } |
| if options.Stderr { |
| query.Set("stderr", "1") |
| } |
| if options.DetachKeys != "" { |
| query.Set("detachKeys", options.DetachKeys) |
| } |
| if options.Logs { |
| query.Set("logs", "1") |
| } |
| |
| headers := map[string][]string{"Content-Type": {"text/plain"}} |
| return cli.postHijacked(ctx, "/containers/"+container+"/attach", query, nil, headers) |
| } |