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backend.go
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backend.go
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// Package backend includes types to send information to server backends.
package backend
import (
"io"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/streamformatter"
)
// ContainerAttachConfig holds the streams to use when connecting to a container to view logs.
type ContainerAttachConfig struct {
GetStreams func() (io.ReadCloser, io.Writer, io.Writer, error)
UseStdin bool
UseStdout bool
UseStderr bool
Logs bool
Stream bool
DetachKeys string
// Used to signify that streams are multiplexed and therefore need a StdWriter to encode stdout/sderr messages accordingly.
// TODO @cpuguy83: This shouldn't be needed. It was only added so that http and websocket endpoints can use the same function, and the websocket function was not using a stdwriter prior to this change...
// HOWEVER, the websocket endpoint is using a single stream and SHOULD be encoded with stdout/stderr as is done for HTTP since it is still just a single stream.
// Since such a change is an API change unrelated to the current changeset we'll keep it as is here and change separately.
MuxStreams bool
}
// ContainerLogsConfig holds configs for logging operations. Exists
// for users of the backend to to pass it a logging configuration.
type ContainerLogsConfig struct {
types.ContainerLogsOptions
OutStream io.Writer
}
// ContainerStatsConfig holds information for configuring the runtime
// behavior of a backend.ContainerStats() call.
type ContainerStatsConfig struct {
Stream bool
OutStream io.Writer
Version string
}
// ExecInspect holds information about a running process started
// with docker exec.
type ExecInspect struct {
ID string
Running bool
ExitCode *int
ProcessConfig *ExecProcessConfig
OpenStdin bool
OpenStderr bool
OpenStdout bool
CanRemove bool
ContainerID string
DetachKeys []byte
Pid int
}
// ExecProcessConfig holds information about the exec process
// running on the host.
type ExecProcessConfig struct {
Tty bool `json:"tty"`
Entrypoint string `json:"entrypoint"`
Arguments []string `json:"arguments"`
Privileged *bool `json:"privileged,omitempty"`
User string `json:"user,omitempty"`
}
// ContainerCommitConfig is a wrapper around
// types.ContainerCommitConfig that also
// transports configuration changes for a container.
type ContainerCommitConfig struct {
types.ContainerCommitConfig
Changes []string
}
// ProgressWriter is an interface
// to transport progress streams.
type ProgressWriter struct {
Output io.Writer
StdoutFormatter *streamformatter.StdoutFormatter
StderrFormatter *streamformatter.StderrFormatter
ProgressReaderFunc func(io.ReadCloser) io.ReadCloser
}