60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
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package libcontainerd
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import "io"
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// State constants used in state change reporting.
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const (
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StateStart = "start-container"
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StatePause = "pause"
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StateResume = "resume"
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StateExit = "exit"
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StateRestart = "restart"
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StateRestore = "restore"
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StateStartProcess = "start-process"
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StateExitProcess = "exit-process"
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StateOOM = "oom" // fake state
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stateLive = "live"
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)
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// StateInfo contains description about the new state container has entered.
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type StateInfo struct { // FIXME: event?
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State string
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Pid uint32
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ExitCode uint32
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ProcessID string
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OOMKilled bool // TODO Windows containerd factor out
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}
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// Backend defines callbacks that the client of the library needs to implement.
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type Backend interface {
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StateChanged(containerID string, state StateInfo) error
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AttachStreams(processFriendlyName string, io IOPipe) error
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}
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// Client provides access to containerd features.
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type Client interface {
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Create(containerID string, spec Spec, options ...CreateOption) error
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Signal(containerID string, sig int) error
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AddProcess(containerID, processFriendlyName string, process Process) error
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Resize(containerID, processFriendlyName string, width, height int) error
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Pause(containerID string) error
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Resume(containerID string) error
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Restore(containerID string, options ...CreateOption) error
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Stats(containerID string) (*Stats, error)
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GetPidsForContainer(containerID string) ([]int, error)
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UpdateResources(containerID string, resources Resources) error
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}
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// CreateOption allows to configure parameters of container creation.
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type CreateOption interface {
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Apply(interface{}) error
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}
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// IOPipe contains the stdio streams.
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type IOPipe struct {
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Stdin io.WriteCloser
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Stdout io.Reader
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Stderr io.Reader
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Terminal bool // Whether stderr is connected on Windows
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}
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