60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
package client // import "github.com/docker/docker/client"
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import (
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"context"
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"net/http"
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"net/url"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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)
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// ContainerAttach attaches a connection to a container in the server.
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// It returns a types.HijackedConnection with the hijacked connection
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// and the a reader to get output. It's up to the called to close
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// the hijacked connection by calling types.HijackedResponse.Close.
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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) ContainerAttach(ctx context.Context, container string, options container.AttachOptions) (types.HijackedResponse, error) {
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query := url.Values{}
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if options.Stream {
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query.Set("stream", "1")
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}
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if options.Stdin {
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query.Set("stdin", "1")
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}
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if options.Stdout {
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query.Set("stdout", "1")
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}
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if options.Stderr {
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query.Set("stderr", "1")
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}
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if options.DetachKeys != "" {
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query.Set("detachKeys", options.DetachKeys)
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}
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if options.Logs {
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query.Set("logs", "1")
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}
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return cli.postHijacked(ctx, "/containers/"+container+"/attach", query, nil, http.Header{
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"Content-Type": {"text/plain"},
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})
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}
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