container

package
v1.2.2 Latest Latest
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 Go to latest Published: Apr 8, 2016 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// Container event reason list
	CreatedContainer        = "Created"
	StartedContainer        = "Started"
	FailedToCreateContainer = "Failed"
	FailedToStartContainer  = "Failed"
	KillingContainer        = "Killing"
	BackOffStartContainer   = "BackOff"

	// Image event reason list
	PullingImage            = "Pulling"
	PulledImage             = "Pulled"
	FailedToPullImage       = "Failed"
	FailedToInspectImage    = "InspectFailed"
	ErrImageNeverPullPolicy = "ErrImageNeverPull"
	BackOffPullImage        = "BackOff"

	// kubelet event reason list
	NodeReady               = "NodeReady"
	NodeNotReady            = "NodeNotReady"
	NodeSchedulable         = "NodeSchedulable"
	NodeNotSchedulable      = "NodeNotSchedulable"
	StartingKubelet         = "Starting"
	KubeletSetupFailed      = "KubeletSetupFailed"
	FailedMountVolume       = "FailedMount"
	HostPortConflict        = "HostPortConflict"
	NodeSelectorMismatching = "NodeSelectorMismatching"
	InsufficientFreeCPU     = "InsufficientFreeCPU"
	InsufficientFreeMemory  = "InsufficientFreeMemory"
	OutOfDisk               = "OutOfDisk"
	HostNetworkNotSupported = "HostNetworkNotSupported"
	UndefinedShaper         = "NilShaper"
	NodeRebooted            = "Rebooted"

	// Image manager event reason list
	InvalidDiskCapacity = "InvalidDiskCapacity"
	FreeDiskSpaceFailed = "FreeDiskSpaceFailed"

	// Probe event reason list
	ContainerUnhealthy = "Unhealthy"

	// Pod worker event reason list
	FailedSync = "FailedSync"

	// Config event reason list
	FailedValidation = "FailedValidation"
)

Variables

View Source 
var (
	// Container image pull failed, kubelet is backing off image pull
	ErrImagePullBackOff = errors.New("ImagePullBackOff")

	// Unable to inspect image
	ErrImageInspect = errors.New("ImageInspectError")

	// General image pull error
	ErrImagePull = errors.New("ErrImagePull")

	// Required Image is absent on host and PullPolicy is NeverPullImage
	ErrImageNeverPull = errors.New("ErrImageNeverPull")

	// ErrContainerNotFound returned when a container in the given pod with the
	// given container name was not found, amongst those managed by the kubelet.
	ErrContainerNotFound = errors.New("no matching container")

	// Get http error when pulling image from registry
	RegistryUnavailable = errors.New("RegistryUnavailable")
)
View Source 
var (
	ErrRunContainer  = errors.New("RunContainerError")
	ErrKillContainer = errors.New("KillContainerError")
	ErrVerifyNonRoot = errors.New("VerifyNonRootError")
)
View Source 
var (
	ErrSetupNetwork    = errors.New("SetupNetworkError")
	ErrTeardownNetwork = errors.New("TeardownNetworkError")
)
View Source 
var ErrCrashLoopBackOff = errors.New("CrashLoopBackOff")

Container Terminated and Kubelet is backing off the restart

View Source 
var ImplicitContainerPrefix string = "implicitly required container "

Functions

func BuildPodFullName 

func BuildPodFullName(name, namespace string) string

Build the pod full name from pod name and namespace.

func EnvVarsToMap added in v0.19.2 

func EnvVarsToMap(envs []EnvVar) map[string]string

EnvVarsToMap constructs a map of environment name to value from a slice of env vars.

func ExpandContainerCommandAndArgs added in v0.19.2 

func ExpandContainerCommandAndArgs(container *api.Container, envs []EnvVar) (command []string, args []string)

func FilterEventRecorder added in v1.2.2 

func FilterEventRecorder(recorder record.EventRecorder) record.EventRecorder

Create an event recorder to record object's event except implicitly required container's, like infra container.

func GenerateContainerRef added in v0.16.0 

func GenerateContainerRef(pod *api.Pod, container *api.Container) (*api.ObjectReference, error)

GenerateContainerRef returns an *api.ObjectReference which references the given container within the given pod. Returns an error if the reference can't be constructed or the container doesn't actually belong to the pod.

This function will return an error if the provided Pod does not have a selfLink, but we expect selfLink to be populated at all call sites for the function.

func GetPodFullName 

func GetPodFullName(pod *api.Pod) string

GetPodFullName returns a name that uniquely identifies a pod.

func HashContainer added in v0.19.2 

func HashContainer(container *api.Container) uint64

HashContainer returns the hash of the container. It is used to compare the running container with its desired spec.

func ParsePodFullName 

func ParsePodFullName(podFullName string) (string, string, error)

Parse the pod full name.

func ShouldContainerBeRestarted added in v0.17.0 

func ShouldContainerBeRestarted(container *api.Container, pod *api.Pod, podStatus *PodStatus) bool

ShouldContainerBeRestarted checks whether a container needs to be restarted. TODO(yifan): Think about how to refactor this.

func StartPty added in v0.17.0 

func StartPty(c *exec.Cmd) (*os.File, error)

Types

type Cache added in v1.2.2 

type Cache interface {
	Get(types.UID) (*PodStatus, error)
	Set(types.UID, *PodStatus, error, time.Time)
	// GetNewerThan is a blocking call that only returns the status
	// when it is newer than the given time.
	GetNewerThan(types.UID, time.Time) (*PodStatus, error)
	Delete(types.UID)
	UpdateTime(time.Time)
}

Cache stores the PodStatus for the pods. It represents *all* the visible pods/containers in the container runtime. All cache entries are at least as new or newer than the global timestamp (set by UpdateTime()), while individual entries may be slightly newer than the global timestamp. If a pod has no states known by the runtime, Cache returns an empty PodStatus object with ID populated.

Cache provides two methods to retrive the PodStatus: the non-blocking Get() and the blocking GetNewerThan() method. The component responsible for populating the cache is expected to call Delete() to explicitly free the cache entries.

func NewCache added in v1.2.2 

func NewCache() Cache

NewCache creates a pod cache.

type Container 

type Container struct {
	// The ID of the container, used by the container runtime to identify
	// a container.
	ID ContainerID
	// The name of the container, which should be the same as specified by
	// api.Container.
	Name string
	// The image name of the container.
	Image string
	// Hash of the container, used for comparison. Optional for containers
	// not managed by kubelet.
	Hash uint64
	// The timestamp of the creation time of the container.
	// TODO(yifan): Consider to move it to api.ContainerStatus.
	Created int64
	// State is the state of the container.
	State ContainerState
}

Container provides the runtime information for a container, such as ID, hash, state of the container.

type ContainerAttacher added in v1.1.0 

type ContainerAttacher interface {
	AttachContainer(id ContainerID, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) (err error)
}

type ContainerCommandRunner added in v0.17.0 

type ContainerCommandRunner interface {
	// TODO(vmarmol): Merge RunInContainer and ExecInContainer.
	// Runs the command in the container of the specified pod using nsinit.
	RunInContainer(containerID ContainerID, cmd []string) ([]byte, error)
	// Runs the command in the container of the specified pod using nsenter.
	// Attaches the processes stdin, stdout, and stderr. Optionally uses a
	// tty.
	ExecInContainer(containerID ContainerID, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error
	// Forward the specified port from the specified pod to the stream.
	PortForward(pod *Pod, port uint16, stream io.ReadWriteCloser) error
}

CommandRunner encapsulates the command runner interfaces for testability.

type ContainerGC added in v1.2.2 

type ContainerGC interface {
	// Garbage collect containers.
	GarbageCollect() error
}

Manages garbage collection of dead containers.

Implementation is thread-compatible.

func NewContainerGC added in v1.2.2 

func NewContainerGC(runtime Runtime, policy ContainerGCPolicy) (ContainerGC, error)

New ContainerGC instance with the specified policy.

type ContainerGCPolicy added in v1.2.2 

type ContainerGCPolicy struct {
	// Minimum age at which a container can be garbage collected, zero for no limit.
	MinAge time.Duration

	// Max number of dead containers any single pod (UID, container name) pair is
	// allowed to have, less than zero for no limit.
	MaxPerPodContainer int

	// Max number of total dead containers, less than zero for no limit.
	MaxContainers int
}

Specified a policy for garbage collecting containers.

type ContainerID added in v0.16.0 

type ContainerID struct {
	// The type of the container runtime. e.g. 'docker', 'rkt'.
	Type string
	// The identification of the container, this is comsumable by
	// the underlying container runtime. (Note that the container
	// runtime interface still takes the whole struct as input).
	ID string
}

ContainerID is a type that identifies a container.

func BuildContainerID added in v0.16.0 

func BuildContainerID(typ, ID string) ContainerID

func ParseContainerID added in v1.2.2 

func ParseContainerID(containerID string) ContainerID

Convenience method for creating a ContainerID from an ID string.

func (*ContainerID) IsEmpty added in v1.2.2 

func (c *ContainerID) IsEmpty() bool

func (*ContainerID) MarshalJSON added in v0.16.0 

func (c *ContainerID) MarshalJSON() ([]byte, error)

func (*ContainerID) ParseString added in v0.16.0 

func (c *ContainerID) ParseString(data string) error

func (*ContainerID) String added in v0.16.0 

func (c *ContainerID) String() string

func (*ContainerID) UnmarshalJSON added in v0.16.0 

func (c *ContainerID) UnmarshalJSON(data []byte) error

type ContainerState added in v1.2.2 

type ContainerState string
const (
	ContainerStateRunning ContainerState = "running"
	ContainerStateExited  ContainerState = "exited"
	// This unknown encompasses all the states that we currently don't care.
	ContainerStateUnknown ContainerState = "unknown"
)

type ContainerStatus added in v1.2.2 

type ContainerStatus struct {
	// ID of the container.
	ID ContainerID
	// Name of the container.
	Name string
	// Status of the container.
	State ContainerState
	// Creation time of the container.
	CreatedAt time.Time
	// Start time of the container.
	StartedAt time.Time
	// Finish time of the container.
	FinishedAt time.Time
	// Exit code of the container.
	ExitCode int
	// Name of the image.
	Image string
	// ID of the image.
	ImageID string
	// Hash of the container, used for comparison.
	Hash uint64
	// Number of times that the container has been restarted.
	RestartCount int
	// A string explains why container is in such a status.
	Reason string
	// Message written by the container before exiting (stored in
	// TerminationMessagePath).
	Message string
}

ContainerStatus represents the status of a container.

type DockerID added in v1.2.2 

type DockerID string

DockerID is an ID of docker container. It is a type to make it clear when we're working with docker container Ids

func (DockerID) ContainerID added in v1.2.2 

func (id DockerID) ContainerID() ContainerID

type EnvVar added in v0.19.2 

type EnvVar struct {
	Name  string
	Value string
}

type HandlerRunner added in v0.16.0 

type HandlerRunner interface {
	Run(containerID ContainerID, pod *api.Pod, container *api.Container, handler *api.Handler) error
}

HandlerRunner runs a lifecycle handler for a container.

type Image added in v0.17.0 

type Image struct {
	// ID of the image.
	ID string
	// Other names by which this image is known.
	RepoTags []string
	// The size of the image in bytes.
	Size int64
}

Basic information about a container image.

type ImagePuller added in v1.1.0 

type ImagePuller interface {
	PullImage(pod *api.Pod, container *api.Container, pullSecrets []api.Secret) (error, string)
}

ImagePuller wraps Runtime.PullImage() to pull a container image. It will check the presence of the image, and report the 'image pulling', 'image pulled' events correspondingly.

func NewImagePuller added in v1.1.0 

func NewImagePuller(recorder record.EventRecorder, runtime Runtime, imageBackOff *util.Backoff) ImagePuller

NewImagePuller takes an event recorder and container runtime to create a image puller that wraps the container runtime's PullImage interface.

func NewSerializedImagePuller added in v1.1.4 

func NewSerializedImagePuller(recorder record.EventRecorder, runtime Runtime, imageBackOff *util.Backoff) ImagePuller

NewSerializedImagePuller takes an event recorder and container runtime to create a image puller that wraps the container runtime's PullImage interface. Pulls one image at a time. Issue #10959 has the rationale behind serializing image pulls.

type ImageSpec added in v0.17.0 

type ImageSpec struct {
	Image string
}

ImageSpec is an internal representation of an image. Currently, it wraps the value of a Container's Image field, but in the future it will include more detailed information about the different image types.

type Mount added in v0.19.2 

type Mount struct {
	// Name of the volume mount.
	Name string
	// Path of the mount within the container.
	ContainerPath string
	// Path of the mount on the host.
	HostPath string
	// Whether the mount is read-only.
	ReadOnly bool
	// Whether the mount needs SELinux relabeling
	SELinuxRelabel bool
}

type OSInterface added in v0.16.0 

type OSInterface interface {
	Mkdir(path string, perm os.FileMode) error
	Symlink(oldname string, newname string) error
}

OSInterface collects system level operations that need to be mocked out during tests.

type Option added in v1.2.2 

type Option func(Runtime)

Option is a functional option type for Runtime, useful for completely optional settings.

type Pod 

type Pod struct {
	// The ID of the pod, which can be used to retrieve a particular pod
	// from the pod list returned by GetPods().
	ID types.UID
	// The name and namespace of the pod, which is readable by human.
	Name      string
	Namespace string
	// List of containers that belongs to this pod. It may contain only
	// running containers, or mixed with dead ones (when GetPods(true)).
	Containers []*Container
}

Pod is a group of containers.

func ConvertPodStatusToRunningPod added in v1.2.2 

func ConvertPodStatusToRunningPod(podStatus *PodStatus) Pod

TODO(random-liu): Convert PodStatus to running Pod, should be deprecated soon

func (*Pod) FindContainerByID added in v1.2.2 

func (p *Pod) FindContainerByID(id ContainerID) *Container

func (*Pod) FindContainerByName 

func (p *Pod) FindContainerByName(containerName string) *Container

FindContainerByName returns a container in the pod with the given name. When there are multiple containers with the same name, the first match will be returned.

func (*Pod) IsEmpty added in v0.21.3 

func (p *Pod) IsEmpty() bool

IsEmpty returns true if the pod is empty.

func (*Pod) ToAPIPod added in v0.21.3 

func (p *Pod) ToAPIPod() *api.Pod

ToAPIPod converts Pod to api.Pod. Note that if a field in api.Pod has no corresponding field in Pod, the field would not be populated.

type PodPair added in v1.2.2 

type PodPair struct {
	// APIPod is the api.Pod
	APIPod *api.Pod
	// RunningPod is the pod defined defined in pkg/kubelet/container/runtime#Pod
	RunningPod *Pod
}

PodPair contains both runtime#Pod and api#Pod

type PodStatus added in v1.2.2 

type PodStatus struct {
	// ID of the pod.
	ID types.UID
	// Name of the pod.
	Name string
	// Namspace of the pod.
	Namespace string
	// IP of the pod.
	IP string
	// Status of containers in the pod.
	ContainerStatuses []*ContainerStatus
}

PodStatus represents the status of the pod and its containers. api.PodStatus can be derived from examining PodStatus and api.Pod.

func (*PodStatus) FindContainerStatusByName added in v1.2.2 

func (podStatus *PodStatus) FindContainerStatusByName(containerName string) *ContainerStatus

FindContainerStatusByName returns container status in the pod status with the given name. When there are multiple containers' statuses with the same name, the first match will be returned.

func (*PodStatus) GetRunningContainerStatuses added in v1.2.2 

func (podStatus *PodStatus) GetRunningContainerStatuses() []*ContainerStatus

Get container status of all the running containers in a pod

type PodSyncResult added in v1.2.2 

type PodSyncResult struct {
	// Result of different sync actions
	SyncResults []*SyncResult
	// Error encountered in SyncPod() and KillPod() that is not already included in SyncResults
	SyncError error
}

PodSyncResult is the summary result of SyncPod() and KillPod()

func (*PodSyncResult) AddPodSyncResult added in v1.2.2 

func (p *PodSyncResult) AddPodSyncResult(result PodSyncResult)

AddPodSyncResult merges a PodSyncResult to current one

func (*PodSyncResult) AddSyncResult added in v1.2.2 

func (p *PodSyncResult) AddSyncResult(result ...*SyncResult)

AddSyncResult adds multiple SyncResult to current PodSyncResult

func (*PodSyncResult) Error added in v1.2.2 

func (p *PodSyncResult) Error() error

Error returns an error summarizing all the errors in PodSyncResult

func (*PodSyncResult) Fail added in v1.2.2 

func (p *PodSyncResult) Fail(err error)

Fail fails the PodSyncResult with an error occurred in SyncPod() and KillPod() itself

type Pods 

type Pods []*Pod

func (Pods) FindPod added in v0.16.0 

func (p Pods) FindPod(podFullName string, podUID types.UID) Pod

FindPod combines FindPodByID and FindPodByFullName, it finds and returns a pod in the pod list either by the full name or the pod ID. It will return an empty pod if not found.

func (Pods) FindPodByFullName added in v0.16.0 

func (p Pods) FindPodByFullName(podFullName string) Pod

FindPodByFullName finds and returns a pod in the pod list by the full name. It will return an empty pod if not found.

func (Pods) FindPodByID 

func (p Pods) FindPodByID(podUID types.UID) Pod

FindPodByID finds and returns a pod in the pod list by UID. It will return an empty pod if not found.

type PortMapping added in v0.19.2 

type PortMapping struct {
	// Name of the port mapping
	Name string
	// Protocol of the port mapping.
	Protocol api.Protocol
	// The port number within the container.
	ContainerPort int
	// The port number on the host.
	HostPort int
	// The host IP.
	HostIP string
}

type RealOS added in v0.16.0 

type RealOS struct{}

RealOS is used to dispatch the real system level operaitons.

func (RealOS) Mkdir added in v0.16.0 

func (RealOS) Mkdir(path string, perm os.FileMode) error

MkDir will will call os.Mkdir to create a directory. 

func (RealOS) Symlink(oldname string, newname string) error

Symlink will call os.Symlink to create a symbolic link.

type RefManager 

type RefManager struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

RefManager manages the references for the containers. The references are used for reporting events such as creation, failure, etc. This manager is thread-safe, no locks are necessary for the caller.

func NewRefManager 

func NewRefManager() *RefManager

NewRefManager creates and returns a container reference manager with empty contents.

func (*RefManager) ClearRef 

func (c *RefManager) ClearRef(id ContainerID)

ClearRef forgets the given container id and its associated container reference.

func (*RefManager) GetRef 

func (c *RefManager) GetRef(id ContainerID) (ref *api.ObjectReference, ok bool)

GetRef returns the container reference of the given ID, or (nil, false) if none is stored.

func (*RefManager) SetRef 

func (c *RefManager) SetRef(id ContainerID, ref *api.ObjectReference)

SetRef stores a reference to a pod's container, associating it with the given container ID.

type RunContainerOptions 

type RunContainerOptions struct {
	// The environment variables list.
	Envs []EnvVar
	// The mounts for the containers.
	Mounts []Mount
	// The port mappings for the containers.
	PortMappings []PortMapping
	// If the container has specified the TerminationMessagePath, then
	// this directory will be used to create and mount the log file to
	// container.TerminationMessagePath
	PodContainerDir string
	// The list of DNS servers for the container to use.
	DNS []string
	// The list of DNS search domains.
	DNSSearch []string
	// The parent cgroup to pass to Docker
	CgroupParent string
	// The type of container rootfs
	ReadOnly bool
	// hostname for pod containers
	Hostname string
}

RunContainerOptions specify the options which are necessary for running containers

type Runtime 

type Runtime interface {
	// Type returns the type of the container runtime.
	Type() string

	// Version returns the version information of the container runtime.
	Version() (Version, error)
	// APIVersion returns the API version information of the container
	// runtime. This may be different from the runtime engine's version.
	// TODO(random-liu): We should fold this into Version()
	APIVersion() (Version, error)
	// Status returns error if the runtime is unhealthy; nil otherwise.
	Status() error
	// GetPods returns a list containers group by pods. The boolean parameter
	// specifies whether the runtime returns all containers including those already
	// exited and dead containers (used for garbage collection).
	GetPods(all bool) ([]*Pod, error)
	// GarbageCollect removes dead containers using the specified container gc policy
	GarbageCollect(gcPolicy ContainerGCPolicy) error
	// Syncs the running pod into the desired pod.
	SyncPod(pod *api.Pod, apiPodStatus api.PodStatus, podStatus *PodStatus, pullSecrets []api.Secret, backOff *util.Backoff) PodSyncResult
	// KillPod kills all the containers of a pod. Pod may be nil, running pod must not be.
	// TODO(random-liu): Return PodSyncResult in KillPod.
	KillPod(pod *api.Pod, runningPod Pod) error
	// GetPodStatus retrieves the status of the pod, including the
	// information of all containers in the pod that are visble in Runtime.
	GetPodStatus(uid types.UID, name, namespace string) (*PodStatus, error)
	// PullImage pulls an image from the network to local storage using the supplied
	// secrets if necessary.
	PullImage(image ImageSpec, pullSecrets []api.Secret) error
	// IsImagePresent checks whether the container image is already in the local storage.
	IsImagePresent(image ImageSpec) (bool, error)
	// Gets all images currently on the machine.
	ListImages() ([]Image, error)
	// Removes the specified image.
	RemoveImage(image ImageSpec) error
	// TODO(vmarmol): Unify pod and containerID args.
	// GetContainerLogs returns logs of a specific container. By
	// default, it returns a snapshot of the container log. Set 'follow' to true to
	// stream the log. Set 'follow' to false and specify the number of lines (e.g.
	// "100" or "all") to tail the log.
	GetContainerLogs(pod *api.Pod, containerID ContainerID, logOptions *api.PodLogOptions, stdout, stderr io.Writer) (err error)
	// ContainerCommandRunner encapsulates the command runner interfaces for testability.
	ContainerCommandRunner
	// ContainerAttach encapsulates the attaching to containers for testability
	ContainerAttacher
}

Runtime interface defines the interfaces that should be implemented by a container runtime. Thread safety is required from implementations of this interface.

type RuntimeCache 

type RuntimeCache interface {
	GetPods() ([]*Pod, error)
	ForceUpdateIfOlder(time.Time) error
}

func NewRuntimeCache 

func NewRuntimeCache(getter podsGetter) (RuntimeCache, error)

NewRuntimeCache creates a container runtime cache.

type RuntimeHelper added in v1.2.2 

type RuntimeHelper interface {
	GenerateRunContainerOptions(pod *api.Pod, container *api.Container, podIP string) (*RunContainerOptions, error)
	GetClusterDNS(pod *api.Pod) (dnsServers []string, dnsSearches []string, err error)
}

RuntimeHelper wraps kubelet to make container runtime able to get necessary informations like the RunContainerOptions, DNS settings.

type SortContainerStatusesByCreationTime added in v1.2.2 

type SortContainerStatusesByCreationTime []*ContainerStatus

Sort the container statuses by creation time.

func (SortContainerStatusesByCreationTime) Len added in v1.2.2 

func (s SortContainerStatusesByCreationTime) Len() int

func (SortContainerStatusesByCreationTime) Less added in v1.2.2 

func (s SortContainerStatusesByCreationTime) Less(i, j int) bool

func (SortContainerStatusesByCreationTime) Swap added in v1.2.2 

func (s SortContainerStatusesByCreationTime) Swap(i, j int)

type SyncAction added in v1.2.2 

type SyncAction string

SyncAction indicates different kind of actions in SyncPod() and KillPod(). Now there are only actions about start/kill container and setup/teardown network. 

const (
	StartContainer  SyncAction = "StartContainer"
	KillContainer   SyncAction = "KillContainer"
	SetupNetwork    SyncAction = "SetupNetwork"
	TeardownNetwork SyncAction = "TeardownNetwork"
)

type SyncResult added in v1.2.2 

type SyncResult struct {
	// The associated action of the result
	Action SyncAction
	// The target of the action, now the target can only be:
	//  * Container: Target should be container name
	//  * Network: Target is useless now, we just set it as pod full name now
	Target interface{}
	// Brief error reason
	Error error
	// Human readable error reason
	Message string
}

SyncResult is the result of sync action.

func NewSyncResult added in v1.2.2 

func NewSyncResult(action SyncAction, target interface{}) *SyncResult

NewSyncResult generates new SyncResult with specific Action and Target

func (*SyncResult) Fail added in v1.2.2 

func (r *SyncResult) Fail(err error, msg string)

Fail fails the SyncResult with specific error and message

type Version added in v0.16.0 

type Version interface {
	// Compare compares two versions of the runtime. On success it returns -1
	// if the version is less than the other, 1 if it is greater than the other,
	// or 0 if they are equal.
	Compare(other string) (int, error)
	// String returns a string that represents the version.
	String() string
}

type VolumeInfo added in v1.2.2 

type VolumeInfo struct {
	// Builder is the volume's builder
	Builder volume.Builder
	// SELinuxLabeled indicates whether this volume has had the
	// pod's SELinux label applied to it or not
	SELinuxLabeled bool
}

VolumeInfo contains information about the volume.

type VolumeMap added in v0.17.0 

type VolumeMap map[string]VolumeInfo

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