// Logs obtains the stderr and stdout log messages from the container.
func Logs(containerID string, stream StdStream) (string, error) {
// Create the output buffer.
buf := bytes.NewBuffer(nil)
// Create the logs options.
opts := docker.LogsOptions{
Container: containerID,
Follow: false,
OutputStream: buf,
ErrorStream: buf,
}
if stream == StdStreamCombined {
opts.Stdout = true
opts.Stderr = true
} else if stream == StdStreamOutput {
opts.Stdout = true
opts.Stderr = false
} else if stream == StdStreamError {
opts.Stdout = false
opts.Stderr = true
} else {
return "", fmt.Errorf("invalid stream option!")
}
// Obtain the logs.
err := Client.Logs(opts)
if err != nil {
return "", fmt.Errorf("failed to get container '%s' logs: %v", containerID, err)
}
return strings.TrimSpace(buf.String()), nil
}
