shim

package
v0.6.3 Latest Latest
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 Go to latest Published: Apr 13, 2025 License: Apache-2.0 Imports: 40 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	NodeLabel                        = "zeropod.ctrox.dev/node"
	PortsAnnotationKey               = "zeropod.ctrox.dev/ports-map"
	ContainerNamesAnnotationKey      = "zeropod.ctrox.dev/container-names"
	ScaleDownDurationAnnotationKey   = "zeropod.ctrox.dev/scaledown-duration"
	DisableCheckpoiningAnnotationKey = "zeropod.ctrox.dev/disable-checkpointing"
	PreDumpAnnotationKey             = "zeropod.ctrox.dev/pre-dump"
	MigrateAnnotationKey             = "zeropod.ctrox.dev/migrate"
	LiveMigrateAnnotationKey         = "zeropod.ctrox.dev/live-migrate"
	CRIContainerNameAnnotation       = "io.kubernetes.cri.container-name"
	CRIContainerTypeAnnotation       = "io.kubernetes.cri.container-type"
	CRIPodNameAnnotation             = "io.kubernetes.cri.sandbox-name"
	CRIPodNamespaceAnnotation        = "io.kubernetes.cri.sandbox-namespace"
	CRIPodUIDAnnotation              = "io.kubernetes.cri.sandbox-uid"
)
View Source 
const RuntimeName = "io.containerd.zeropod.v2"

Variables

View Source 
var (
	ErrAlreadyRestored      = errors.New("container is already restored")
	ErrRestoreRequestFailed = errors.New("restore request failed")
)

Functions

func FinishRestore 

func FinishRestore(ctx context.Context, id string, cfg *Config, startTime time.Time) error

func GetNetworkNS 

func GetNetworkNS(spec *specs.Spec) (string, error)

GetNetworkNS reads the bundle's OCI spec and returns the network NS path of the container.

func GetPIDNS 

func GetPIDNS(spec *specs.Spec) (string, error)

GetPIDNS reads the bundle's OCI spec and returns the PID NS path of the container.

func GetSpec 

func GetSpec(bundlePath string) (*specs.Spec, error)

func MigrationRestore 

func MigrationRestore(ctx context.Context, r *task.CreateTaskRequest, cfg *Config) (skipStart bool, err error)

MigrationRestore requests a restore from the node. If a matching migration is found, it sets the Checkpoint path in the CreateTaskRequest.

Types

type Config 

type Config struct {
	ZeropodContainerNames []string
	Ports                 []uint16
	ScaleDownDuration     time.Duration
	DisableCheckpointing  bool
	PreDump               bool
	Migrate               []string
	LiveMigrate           string
	ContainerName         string
	ContainerType         string
	PodName               string
	PodNamespace          string
	PodUID                string
	ContainerdNamespace   string
	// contains filtered or unexported fields
}

func NewConfig 

func NewConfig(ctx context.Context, spec *specs.Spec) (*Config, error)

NewConfig uses the annotations from the container spec to create a new typed ZeropodConfig config.

func (Config) AnyMigrationEnabled 

func (cfg Config) AnyMigrationEnabled() bool

func (Config) IsZeropodContainer 

func (cfg Config) IsZeropodContainer() bool

func (Config) LiveMigrationEnabled 

func (cfg Config) LiveMigrationEnabled() bool

type Container 

type Container struct {
	*runc.Container
	// contains filtered or unexported fields
}

func New 

func New(ctx context.Context, cfg *Config, id string, cr *sync.Mutex, pt stdio.Platform, events chan *v1.ContainerStatus) (*Container, error)

func (*Container) AddCheckpointedPID 

func (c *Container) AddCheckpointedPID(pid int)

AddCheckpointedPID registers a new pid that should be considered checkpointed.

func (*Container) CancelScaleDown 

func (c *Container) CancelScaleDown()

func (*Container) CheckpointedPID 

func (c *Container) CheckpointedPID(pid int) bool

CheckpointedPID indicates if the pid has been checkpointed before.

func (*Container) Config 

func (c *Container) Config() *Config

func (*Container) DeleteCheckpointedPID 

func (c *Container) DeleteCheckpointedPID(pid int)

DeleteCheckpointedPID deletes a pid from the map of checkpointed pids.

func (*Container) Evac 

func (c *Container) Evac(ctx context.Context, scaledDown bool) error

func (*Container) GetMetrics 

func (c *Container) GetMetrics() *v1.ContainerMetrics

func (*Container) ID 

func (c *Container) ID() string

func (*Container) InitialProcess 

func (c *Container) InitialProcess() process.Process

func (*Container) MigrationEnabled 

func (c *Container) MigrationEnabled() bool

func (*Container) Process 

func (c *Container) Process() process.Process

func (*Container) Register 

func (c *Container) Register(ctx context.Context, container *runc.Container) error

func (*Container) RegisterPostRestore 

func (c *Container) RegisterPostRestore(f func(*runc.Container, HandleStartedFunc))

func (*Container) RegisterPreRestore 

func (c *Container) RegisterPreRestore(f func() HandleStartedFunc)

func (*Container) Restore 

func (c *Container) Restore(ctx context.Context) (*runc.Container, process.Process, error)

func (*Container) ScaledDown 

func (c *Container) ScaledDown() bool

func (*Container) ScheduleScaleDown 

func (c *Container) ScheduleScaleDown() error

func (*Container) SetScaledDown 

func (c *Container) SetScaledDown(scaledDown bool)

func (*Container) SetSkipStart 

func (c *Container) SetSkipStart(skip bool)

func (*Container) SkipStart 

func (c *Container) SkipStart() bool

func (*Container) Status 

func (c *Container) Status() *v1.ContainerStatus

func (*Container) Stop 

func (c *Container) Stop(ctx context.Context)

func (*Container) StopActivator 

func (c *Container) StopActivator(ctx context.Context)

type HandleStartedFunc 

type HandleStartedFunc func(*runc.Container, process.Process)

Source Files

View all Source files

Directories

Path Synopsis
Package io has been copied from https://github.com/containerd/containerd/tree/c07fb699a9a0c9792d21a759c87d0d60de11bfb9/internal/cri/io with some small changes to avoid importing k8s.io/cri-api (except in tests) and github.com/docker/go-metrics
 Package io has been copied from https://github.com/containerd/containerd/tree/c07fb699a9a0c9792d21a759c87d0d60de11bfb9/internal/cri/io with some small changes to avoid importing k8s.io/cri-api (except in tests) and github.com/docker/go-metrics
plugin

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