| package client // import "github.com/docker/docker/client" |
| |
| import ( |
| "context" |
| "io" |
| "net/url" |
| "time" |
| |
| "github.com/docker/docker/api/types" |
| timetypes "github.com/docker/docker/api/types/time" |
| "github.com/pkg/errors" |
| ) |
| |
| // ContainerLogs returns the logs generated by a container in an io.ReadCloser. |
| // It's up to the caller to close the stream. |
| // |
| // 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) ContainerLogs(ctx context.Context, container string, options types.ContainerLogsOptions) (io.ReadCloser, error) { |
| query := url.Values{} |
| if options.ShowStdout { |
| query.Set("stdout", "1") |
| } |
| |
| if options.ShowStderr { |
| query.Set("stderr", "1") |
| } |
| |
| if options.Since != "" { |
| ts, err := timetypes.GetTimestamp(options.Since, time.Now()) |
| if err != nil { |
| return nil, errors.Wrap(err, `invalid value for "since"`) |
| } |
| query.Set("since", ts) |
| } |
| |
| if options.Until != "" { |
| ts, err := timetypes.GetTimestamp(options.Until, time.Now()) |
| if err != nil { |
| return nil, errors.Wrap(err, `invalid value for "until"`) |
| } |
| query.Set("until", ts) |
| } |
| |
| if options.Timestamps { |
| query.Set("timestamps", "1") |
| } |
| |
| if options.Details { |
| query.Set("details", "1") |
| } |
| |
| if options.Follow { |
| query.Set("follow", "1") |
| } |
| query.Set("tail", options.Tail) |
| |
| resp, err := cli.get(ctx, "/containers/"+container+"/logs", query, nil) |
| if err != nil { |
| return nil, wrapResponseError(err, resp, "container", container) |
| } |
| return resp.body, nil |
| } |