| package client |
| |
| import ( |
| "encoding/json" |
| "fmt" |
| "net/url" |
| |
| "github.com/docker/docker/api/types" |
| flag "github.com/docker/docker/pkg/mflag" |
| "github.com/docker/docker/pkg/timeutils" |
| ) |
| |
| // CmdLogs fetches the logs of a given container. |
| // |
| // docker logs [OPTIONS] CONTAINER |
| func (cli *DockerCli) CmdLogs(args ...string) error { |
| var ( |
| cmd = cli.Subcmd("logs", "CONTAINER", "Fetch the logs of a container", true) |
| follow = cmd.Bool([]string{"f", "-follow"}, false, "Follow log output") |
| since = cmd.String([]string{"-since"}, "", "Show logs since timestamp") |
| times = cmd.Bool([]string{"t", "-timestamps"}, false, "Show timestamps") |
| tail = cmd.String([]string{"-tail"}, "all", "Number of lines to show from the end of the logs") |
| ) |
| cmd.Require(flag.Exact, 1) |
| |
| cmd.ParseFlags(args, true) |
| |
| name := cmd.Arg(0) |
| |
| stream, _, err := cli.call("GET", "/containers/"+name+"/json", nil, nil) |
| if err != nil { |
| return err |
| } |
| |
| var c types.ContainerJSON |
| if err := json.NewDecoder(stream).Decode(&c); err != nil { |
| return err |
| } |
| |
| if logType := c.HostConfig.LogConfig.Type; logType != "json-file" { |
| return fmt.Errorf("\"logs\" command is supported only for \"json-file\" logging driver (got: %s)", logType) |
| } |
| |
| v := url.Values{} |
| v.Set("stdout", "1") |
| v.Set("stderr", "1") |
| |
| if *since != "" { |
| v.Set("since", timeutils.GetTimestamp(*since)) |
| } |
| |
| if *times { |
| v.Set("timestamps", "1") |
| } |
| |
| if *follow { |
| v.Set("follow", "1") |
| } |
| v.Set("tail", *tail) |
| |
| sopts := &streamOpts{ |
| rawTerminal: c.Config.Tty, |
| out: cli.out, |
| err: cli.err, |
| } |
| |
| return cli.stream("GET", "/containers/"+name+"/logs?"+v.Encode(), sopts) |
| } |