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80 lines
2 KiB
Go
80 lines
2 KiB
Go
package client
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import (
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"io"
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"net/url"
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"time"
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"golang.org/x/net/context"
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"github.com/docker/docker/api/types"
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timetypes "github.com/docker/docker/api/types/time"
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)
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// ContainerLogs returns the logs generated by a container in an io.ReadCloser.
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// It's up to the caller to close the stream.
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//
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// The stream format on the response will be in one of two formats:
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//
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// If the container is using a TTY, there is only a single stream (stdout), and
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// data is copied directly from the container output stream, no extra
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// multiplexing or headers.
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//
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// If the container is *not* using a TTY, streams for stdout and stderr are
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// multiplexed.
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// The format of the multiplexed stream is as follows:
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//
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// [8]byte{STREAM_TYPE, 0, 0, 0, SIZE1, SIZE2, SIZE3, SIZE4}[]byte{OUTPUT}
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//
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// STREAM_TYPE can be 1 for stdout and 2 for stderr
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//
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// SIZE1, SIZE2, SIZE3, and SIZE4 are four bytes of uint32 encoded as big endian.
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// This is the size of OUTPUT.
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//
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// You can use github.com/docker/docker/pkg/stdcopy.StdCopy to demultiplex this
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// stream.
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func (cli *Client) ContainerLogs(ctx context.Context, container string, options types.ContainerLogsOptions) (io.ReadCloser, error) {
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query := url.Values{}
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if options.ShowStdout {
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query.Set("stdout", "1")
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}
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if options.ShowStderr {
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query.Set("stderr", "1")
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}
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if options.Since != "" {
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ts, err := timetypes.GetTimestamp(options.Since, time.Now())
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if err != nil {
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return nil, err
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}
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query.Set("since", ts)
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}
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if options.Until != "" {
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ts, err := timetypes.GetTimestamp(options.Until, time.Now())
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if err != nil {
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return nil, err
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}
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query.Set("until", ts)
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}
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if options.Timestamps {
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query.Set("timestamps", "1")
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}
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if options.Details {
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query.Set("details", "1")
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}
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if options.Follow {
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query.Set("follow", "1")
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}
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query.Set("tail", options.Tail)
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resp, err := cli.get(ctx, "/containers/"+container+"/logs", query, nil)
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if err != nil {
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return nil, wrapResponseError(err, resp, "container", container)
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}
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return resp.body, nil
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}
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