75 lines
2.6 KiB
Go
75 lines
2.6 KiB
Go
package libcontainerd
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import (
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"io"
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containerd "github.com/docker/containerd/api/grpc/types"
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"github.com/opencontainers/runtime-spec/specs-go"
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"golang.org/x/net/context"
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)
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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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StateRestore = "restore"
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StateExitProcess = "exit-process"
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StateOOM = "oom" // fake state
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)
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// CommonStateInfo contains the state info common to all platforms.
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type CommonStateInfo 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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}
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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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}
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// Client provides access to containerd features.
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type Client interface {
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GetServerVersion(ctx context.Context) (*ServerVersion, error)
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Create(containerID string, checkpoint string, checkpointDir string, spec specs.Spec, attachStdio StdioCallback, options ...CreateOption) error
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Signal(containerID string, sig int) error
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SignalProcess(containerID string, processFriendlyName string, sig int) error
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AddProcess(ctx context.Context, containerID, processFriendlyName string, process Process, attachStdio StdioCallback) (int, 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, attachStdio StdioCallback, 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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Summary(containerID string) ([]Summary, error)
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UpdateResources(containerID string, resources Resources) error
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CreateCheckpoint(containerID string, checkpointID string, checkpointDir string, exit bool) error
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DeleteCheckpoint(containerID string, checkpointID string, checkpointDir string) error
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ListCheckpoints(containerID string, checkpointDir string) (*Checkpoints, 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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// StdioCallback is called to connect a container or process stdio.
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type StdioCallback func(IOPipe) error
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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.ReadCloser
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Stderr io.ReadCloser
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Terminal bool // Whether stderr is connected on Windows
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}
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// ServerVersion contains version information as retrieved from the
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// server
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type ServerVersion struct {
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containerd.GetServerVersionResponse
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}
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