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moby--moby/vendor/github.com/Microsoft/hcsshim/interface.go
John Howard 8ae9160643 Revendor Microsoft/HCSShim v0.5.7
Signed-off-by: John Howard <jhoward@microsoft.com>
2016-11-08 12:09:11 -08:00

154 lines
6.3 KiB
Go

package hcsshim
import (
"io"
"time"
)
// ProcessConfig is used as both the input of Container.CreateProcess
// and to convert the parameters to JSON for passing onto the HCS
type ProcessConfig struct {
ApplicationName string
CommandLine string
User string
WorkingDirectory string
Environment map[string]string
EmulateConsole bool
CreateStdInPipe bool
CreateStdOutPipe bool
CreateStdErrPipe bool
ConsoleSize [2]uint
}
type Layer struct {
ID string
Path string
}
type MappedDir struct {
HostPath string
ContainerPath string
ReadOnly bool
BandwidthMaximum uint64
IOPSMaximum uint64
}
type HvRuntime struct {
ImagePath string `json:",omitempty"`
SkipTemplate bool `json:",omitempty"`
}
// ContainerConfig is used as both the input of CreateContainer
// and to convert the parameters to JSON for passing onto the HCS
type ContainerConfig struct {
SystemType string // HCS requires this to be hard-coded to "Container"
Name string // Name of the container. We use the docker ID.
Owner string // The management platform that created this container
IsDummy bool // Used for development purposes.
VolumePath string `json:",omitempty"` // Windows volume path for scratch space. Used by Windows Server Containers only. Format \\?\\Volume{GUID}
IgnoreFlushesDuringBoot bool // Optimization hint for container startup in Windows
LayerFolderPath string `json:",omitempty"` // Where the layer folders are located. Used by Windows Server Containers only. Format %root%\windowsfilter\containerID
Layers []Layer // List of storage layers. Required for Windows Server and Hyper-V Containers. Format ID=GUID;Path=%root%\windowsfilter\layerID
Credentials string `json:",omitempty"` // Credentials information
ProcessorCount uint32 `json:",omitempty"` // Number of processors to assign to the container.
ProcessorWeight uint64 `json:",omitempty"` // CPU Shares 0..10000 on Windows; where 0 will be omitted and HCS will default.
ProcessorMaximum int64 `json:",omitempty"` // CPU maximum usage percent 1..100
StorageIOPSMaximum uint64 `json:",omitempty"` // Maximum Storage IOPS
StorageBandwidthMaximum uint64 `json:",omitempty"` // Maximum Storage Bandwidth in bytes per second
StorageSandboxSize uint64 `json:",omitempty"` // Size in bytes that the container system drive should be expanded to if smaller
MemoryMaximumInMB int64 `json:",omitempty"` // Maximum memory available to the container in Megabytes
HostName string // Hostname
MappedDirectories []MappedDir // List of mapped directories (volumes/mounts)
SandboxPath string `json:",omitempty"` // Location of unmounted sandbox. Used by Hyper-V containers only. Format %root%\windowsfilter
HvPartition bool // True if it a Hyper-V Container
EndpointList []string // List of networking endpoints to be attached to container
HvRuntime *HvRuntime `json:",omitempty"` // Hyper-V container settings. Used by Hyper-V containers only. Format ImagePath=%root%\BaseLayerID\UtilityVM
Servicing bool // True if this container is for servicing
AllowUnqualifiedDNSQuery bool // True to allow unqualified DNS name resolution
}
type ComputeSystemQuery struct {
IDs []string `json:"Ids,omitempty"`
Types []string `json:",omitempty"`
Names []string `json:",omitempty"`
Owners []string `json:",omitempty"`
}
// Container represents a created (but not necessarily running) container.
type Container interface {
// Start synchronously starts the container.
Start() error
// Shutdown requests a container shutdown, but it may not actually be shutdown until Wait() succeeds.
Shutdown() error
// Terminate requests a container terminate, but it may not actually be terminated until Wait() succeeds.
Terminate() error
// Waits synchronously waits for the container to shutdown or terminate.
Wait() error
// WaitTimeout synchronously waits for the container to terminate or the duration to elapse. It
// returns false if timeout occurs.
WaitTimeout(time.Duration) error
// Pause pauses the execution of a container.
Pause() error
// Resume resumes the execution of a container.
Resume() error
// HasPendingUpdates returns true if the container has updates pending to install.
HasPendingUpdates() (bool, error)
// Statistics returns statistics for a container.
Statistics() (Statistics, error)
// ProcessList returns details for the processes in a container.
ProcessList() ([]ProcessListItem, error)
// CreateProcess launches a new process within the container.
CreateProcess(c *ProcessConfig) (Process, error)
// OpenProcess gets an interface to an existing process within the container.
OpenProcess(pid int) (Process, error)
// Close cleans up any state associated with the container but does not terminate or wait for it.
Close() error
}
// Process represents a running or exited process.
type Process interface {
// Pid returns the process ID of the process within the container.
Pid() int
// Kill signals the process to terminate but does not wait for it to finish terminating.
Kill() error
// Wait waits for the process to exit.
Wait() error
// WaitTimeout waits for the process to exit or the duration to elapse. It returns
// false if timeout occurs.
WaitTimeout(time.Duration) error
// ExitCode returns the exit code of the process. The process must have
// already terminated.
ExitCode() (int, error)
// ResizeConsole resizes the console of the process.
ResizeConsole(width, height uint16) error
// Stdio returns the stdin, stdout, and stderr pipes, respectively. Closing
// these pipes does not close the underlying pipes; it should be possible to
// call this multiple times to get multiple interfaces.
Stdio() (io.WriteCloser, io.ReadCloser, io.ReadCloser, error)
// CloseStdin closes the write side of the stdin pipe so that the process is
// notified on the read side that there is no more data in stdin.
CloseStdin() error
// Close cleans up any state associated with the process but does not kill
// or wait on it.
Close() error
}