define

package
v1.9.3 Latest Latest
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 Go to latest Published: May 22, 2020 License: Apache-2.0 Imports: 16 Imported by: 0

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Index

Constants

View Source 
const (
	OCIManifestDir  = "oci-dir"
	OCIArchive      = "oci-archive"
	V2s2ManifestDir = "docker-dir"
	V2s2Archive     = "docker-archive"
)
View Source 
const (
	// ExecErrorCodeGeneric is the default error code to return from an exec session if libpod failed
	// prior to calling the runtime
	ExecErrorCodeGeneric = 125
	// ExecErrorCodeCannotInvoke is the error code to return when the runtime fails to invoke a command
	// an example of this can be found by trying to execute a directory:
	// `podman exec -l /etc`
	ExecErrorCodeCannotInvoke = 126
	// ExecErrorCodeNotFound is the error code to return when a command cannot be found
	ExecErrorCodeNotFound = 127
)
View Source 
const (
	// PodStateCreated indicates the pod is created but has not been started
	PodStateCreated = "Created"
	// PodStateErrored indicates the pod is in an errored state where
	// information about it can no longer be retrieved
	PodStateErrored = "Error"
	// PodStateExited indicates the pod ran but has been stopped
	PodStateExited = "Exited"
	// PodStatePaused indicates the pod has been paused
	PodStatePaused = "Paused"
	// PodStateRunning indicates that one or more of the containers in
	// the pod is running
	PodStateRunning = "Running"
	// PodStateStopped indicates all of the containers belonging to the pod
	// are stopped.
	PodStateStopped = "Stopped"
)
View Source 
const (
	// DefaultTransport is a prefix that we apply to an image name
	// to check docker hub first for the image
	DefaultTransport = "docker://"
)
View Source 
const VolumeDriverLocal = "local"

VolumeDriverLocal is the "local" volume driver. It is managed by libpod itself.

Variables

View Source 
var (
	// DefaultInfraImage to use for infra container
	DefaultInfraImage = "k8s.gcr.io/pause:3.2"
	// DefaultInfraCommand to be run in an infra container
	DefaultInfraCommand = "/pause"
	// DefaultSHMLockPath is the default path for SHM locks
	DefaultSHMLockPath = "/libpod_lock"
	// DefaultRootlessSHMLockPath is the default path for rootless SHM locks
	DefaultRootlessSHMLockPath = "/libpod_rootless_lock"
)
View Source 
var (
	// ErrNoSuchCtr indicates the requested container does not exist
	ErrNoSuchCtr = image.ErrNoSuchCtr

	// ErrNoSuchPod indicates the requested pod does not exist
	ErrNoSuchPod = image.ErrNoSuchPod

	// ErrNoSuchImage indicates the requested image does not exist
	ErrNoSuchImage = image.ErrNoSuchImage

	// ErrNoSuchVolume indicates the requested volume does not exist
	ErrNoSuchVolume = errors.New("no such volume")

	// ErrNoSuchExecSession indicates that the requested exec session does
	// not exist.
	ErrNoSuchExecSession = errors.New("no such exec session")

	// ErrCtrExists indicates a container with the same name or ID already
	// exists
	ErrCtrExists = errors.New("container already exists")
	// ErrPodExists indicates a pod with the same name or ID already exists
	ErrPodExists = errors.New("pod already exists")
	// ErrImageExists indicates an image with the same ID already exists
	ErrImageExists = errors.New("image already exists")
	// ErrVolumeExists indicates a volume with the same name already exists
	ErrVolumeExists = errors.New("volume already exists")
	// ErrExecSessionExists indicates an exec session with the same ID
	// already exists.
	ErrExecSessionExists = errors.New("exec session already exists")

	// ErrCtrStateInvalid indicates a container is in an improper state for
	// the requested operation
	ErrCtrStateInvalid = errors.New("container state improper")
	// ErrExecSessionStateInvalid indicates that an exec session is in an
	// improper state for the requested operation
	ErrExecSessionStateInvalid = errors.New("exec session state improper")
	// ErrVolumeBeingUsed indicates that a volume is being used by at least one container
	ErrVolumeBeingUsed = errors.New("volume is being used")

	// ErrRuntimeFinalized indicates that the runtime has already been
	// created and cannot be modified
	ErrRuntimeFinalized = errors.New("runtime has been finalized")
	// ErrCtrFinalized indicates that the container has already been created
	// and cannot be modified
	ErrCtrFinalized = errors.New("container has been finalized")
	// ErrPodFinalized indicates that the pod has already been created and
	// cannot be modified
	ErrPodFinalized = errors.New("pod has been finalized")
	// ErrVolumeFinalized indicates that the volume has already been created and
	// cannot be modified
	ErrVolumeFinalized = errors.New("volume has been finalized")

	// ErrInvalidArg indicates that an invalid argument was passed
	ErrInvalidArg = errors.New("invalid argument")
	// ErrEmptyID indicates that an empty ID was passed
	ErrEmptyID = errors.New("name or ID cannot be empty")

	// ErrInternal indicates an internal library error
	ErrInternal = errors.New("internal libpod error")

	// ErrDetach indicates that an attach session was manually detached by
	// the user.
	ErrDetach = utils.ErrDetach

	// ErrWillDeadlock indicates that the requested operation will cause a
	// deadlock. This is usually caused by upgrade issues, and is resolved
	// by renumbering the locks.
	ErrWillDeadlock = errors.New("deadlock due to lock mismatch")

	// ErrNoCgroups indicates that the container does not have its own
	// CGroup.
	ErrNoCgroups = errors.New("this container does not have a cgroup")

	// ErrRootless indicates that the given command cannot but run without
	// root.
	ErrRootless = errors.New("operation requires root privileges")

	// ErrRuntimeStopped indicates that the runtime has already been shut
	// down and no further operations can be performed on it
	ErrRuntimeStopped = errors.New("runtime has already been stopped")
	// ErrCtrStopped indicates that the requested container is not running
	// and the requested operation cannot be performed until it is started
	ErrCtrStopped = errors.New("container is stopped")

	// ErrCtrRemoved indicates that the container has already been removed
	// and no further operations can be performed on it
	ErrCtrRemoved = errors.New("container has already been removed")
	// ErrPodRemoved indicates that the pod has already been removed and no
	// further operations can be performed on it
	ErrPodRemoved = errors.New("pod has already been removed")
	// ErrVolumeRemoved indicates that the volume has already been removed and
	// no further operations can be performed on it
	ErrVolumeRemoved = errors.New("volume has already been removed")
	// ErrExecSessionRemoved indicates that the exec session has already
	// been removed and no further operations can be performed on it.
	ErrExecSessionRemoved = errors.New("exec session has already been removed")

	// ErrDBClosed indicates that the connection to the state database has
	// already been closed
	ErrDBClosed = errors.New("database connection already closed")
	// ErrDBBadConfig indicates that the database has a different schema or
	// was created by a libpod with a different config
	ErrDBBadConfig = errors.New("database configuration mismatch")

	// ErrNSMismatch indicates that the requested pod or container is in a
	// different namespace and cannot be accessed or modified.
	ErrNSMismatch = errors.New("target is in a different namespace")

	// ErrNotImplemented indicates that the requested functionality is not
	// yet present
	ErrNotImplemented = errors.New("not yet implemented")

	// ErrOSNotSupported indicates the function is not available on the particular
	// OS.
	ErrOSNotSupported = errors.New("no support for this OS yet")

	// ErrOCIRuntime indicates a generic error from the OCI runtime
	ErrOCIRuntime = errors.New("OCI runtime error")

	// ErrOCIRuntimePermissionDenied indicates the OCI runtime attempted to invoke a command that returned
	// a permission denied error
	ErrOCIRuntimePermissionDenied = errors.New("OCI runtime permission denied error")

	// ErrOCIRuntimeNotFound indicates the OCI runtime attempted to invoke a command
	// that was not found
	ErrOCIRuntimeNotFound = errors.New("OCI runtime command not found error")

	// ErrOCIRuntimeUnavailable indicates that the OCI runtime associated to a container
	// could not be found in the configuration
	ErrOCIRuntimeUnavailable = errors.New("OCI runtime not available in the current configuration")

	// ErrConmonOutdated indicates the version of conmon found (whether via the configuration or $PATH)
	// is out of date for the current podman version
	ErrConmonOutdated = errors.New("outdated conmon version")
)

Functions

func ExitCode added in v1.6.0 

func ExitCode(err error) int

ExitCode reads the error message when failing to executing container process and then returns 0 if no error, ExecErrorCodeNotFound if command does not exist, or ExecErrorCodeCannotInvoke for all other errors

func TranslateExecErrorToExitCode added in v1.5.0 

func TranslateExecErrorToExitCode(originalEC int, err error) int

TranslateExecErrorToExitCode takes an error and checks whether it has a predefined exit code associated. If so, it returns that, otherwise it returns the exit code originally stated in libpod.Exec()

Types

type AttachStreams added in v1.9.0 

type AttachStreams struct {
	// OutputStream will be attached to container's STDOUT
	OutputStream io.WriteCloser
	// ErrorStream will be attached to container's STDERR
	ErrorStream io.WriteCloser
	// InputStream will be attached to container's STDIN
	InputStream *bufio.Reader
	// AttachOutput is whether to attach to STDOUT
	// If false, stdout will not be attached
	AttachOutput bool
	// AttachError is whether to attach to STDERR
	// If false, stdout will not be attached
	AttachError bool
	// AttachInput is whether to attach to STDIN
	// If false, stdout will not be attached
	AttachInput bool
}

AttachStreams contains streams that will be attached to the container

type ConmonInfo added in v1.9.0 

type ConmonInfo struct {
	Package string `json:"package"`
	Path    string `json:"path"`
	Version string `json:"version"`
}

ConmonInfo describes the conmon executable being used

type ContainerExecStatus added in v1.9.0 

type ContainerExecStatus int

ContainerExecStatus is the status of an exec session within a container. 

const (
	// ExecStateUnknown indicates that the state of the exec session is not
	// known.
	ExecStateUnknown ContainerExecStatus = iota
	// ExecStateCreated indicates that the exec session has been created but
	// not yet started
	ExecStateCreated ContainerExecStatus = iota
	// ExecStateRunning indicates that the exec session has been started but
	// has not yet exited.
	ExecStateRunning ContainerExecStatus = iota
	// ExecStateStopped indicates that the exec session has stopped and is
	// no longer running.
	ExecStateStopped ContainerExecStatus = iota
)

func (ContainerExecStatus) String added in v1.9.0 

func (s ContainerExecStatus) String() string

String returns a string representation of a given exec state.

type ContainerStatus 

type ContainerStatus int

ContainerStatus represents the current state of a container 

const (
	// ContainerStateUnknown indicates that the container is in an error
	// state where information about it cannot be retrieved
	ContainerStateUnknown ContainerStatus = iota
	// ContainerStateConfigured indicates that the container has had its
	// storage configured but it has not been created in the OCI runtime
	ContainerStateConfigured ContainerStatus = iota
	// ContainerStateCreated indicates the container has been created in
	// the OCI runtime but not started
	ContainerStateCreated ContainerStatus = iota
	// ContainerStateRunning indicates the container is currently executing
	ContainerStateRunning ContainerStatus = iota
	// ContainerStateStopped indicates that the container was running but has
	// exited
	ContainerStateStopped ContainerStatus = iota
	// ContainerStatePaused indicates that the container has been paused
	ContainerStatePaused ContainerStatus = iota
	// ContainerStateExited indicates the the container has stopped and been
	// cleaned up
	ContainerStateExited ContainerStatus = iota
	// ContainerStateRemoving indicates the container is in the process of
	// being removed.
	ContainerStateRemoving ContainerStatus = iota
)

func StringToContainerStatus 

func StringToContainerStatus(status string) (ContainerStatus, error)

StringToContainerStatus converts a string representation of a containers status into an actual container status type

func (ContainerStatus) String 

func (t ContainerStatus) String() string

ContainerStatus returns a string representation for users of a container state

type ContainerStore added in v1.9.0 

type ContainerStore struct {
	Number  int `json:"number"`
	Paused  int `json:"paused"`
	Running int `json:"running"`
	Stopped int `json:"stopped"`
}

ContainerStore describes the quantity of containers in the store by status

type DistributionInfo added in v1.9.0 

type DistributionInfo struct {
	Distribution string `json:"distribution"`
	Version      string `json:"version"`
}

DistributionInfo describes the host distribution for libpod

type HealthCheckLog added in v1.9.0 

type HealthCheckLog struct {
	// Start time as string
	Start string `json:"Start"`
	// End time as a string
	End string `json:"End"`
	// Exitcode is 0 or 1
	ExitCode int `json:"ExitCode"`
	// Output is the stdout/stderr from the healthcheck command
	Output string `json:"Output"`
}

HealthCheckLog describes the results of a single healthcheck

type HealthCheckResults added in v1.9.0 

type HealthCheckResults struct {
	// Status healthy or unhealthy
	Status string `json:"Status"`
	// FailingStreak is the number of consecutive failed healthchecks
	FailingStreak int `json:"FailingStreak"`
	// Log describes healthcheck attempts and results
	Log []HealthCheckLog `json:"Log"`
}

HealthCheckResults describes the results/logs from a healthcheck

type HostInfo added in v1.9.0 

type HostInfo struct {
	Arch           string                 `json:"arch"`
	BuildahVersion string                 `json:"buildahVersion"`
	CGroupsVersion string                 `json:"cgroupVersion"`
	Conmon         *ConmonInfo            `json:"conmon"`
	CPUs           int                    `json:"cpus"`
	Distribution   DistributionInfo       `json:"distribution"`
	EventLogger    string                 `json:"eventLogger"`
	Hostname       string                 `json:"hostname"`
	IDMappings     IDMappings             `json:"idMappings,omitempty"`
	Kernel         string                 `json:"kernel"`
	MemFree        int64                  `json:"memFree"`
	MemTotal       int64                  `json:"memTotal"`
	OCIRuntime     *OCIRuntimeInfo        `json:"ociRuntime"`
	OS             string                 `json:"os"`
	Rootless       bool                   `json:"rootless"`
	RuntimeInfo    map[string]interface{} `json:"runtimeInfo,omitempty"`
	Slirp4NetNS    SlirpInfo              `json:"slirp4netns,omitempty"`
	SwapFree       int64                  `json:"swapFree"`
	SwapTotal      int64                  `json:"swapTotal"`
	Uptime         string                 `json:"uptime"`
}

HostInfo describes the libpod host

type IDMappings added in v1.9.0 

type IDMappings struct {
	GIDMap []idtools.IDMap `json:"gidmap"`
	UIDMap []idtools.IDMap `json:"uidmap"`
}

IDMappings describe the GID and UID mappings

type ImageStore added in v1.9.0 

type ImageStore struct {
	Number int `json:"number"`
}

ImageStore describes the image store. Right now only the number of images present

type Info added in v1.9.0 

type Info struct {
	Host       *HostInfo              `json:"host"`
	Store      *StoreInfo             `json:"store"`
	Registries map[string]interface{} `json:"registries"`
}

Info is the overall struct that describes the host system running libpod/podman

type InfoData 

type InfoData struct {
	Type string
	Data map[string]interface{}
}

InfoData holds the info type, i.e store, host etc and the data for each type

type InspectAdditionalNetwork added in v1.9.0 

type InspectAdditionalNetwork struct {
	InspectBasicNetworkConfig

	// Name of the network we're connecting to.
	NetworkID string `json:"NetworkID,omitempty"`
	// DriverOpts is presently unused and maintained exclusively for
	// compatibility.
	DriverOpts map[string]string `json:"DriverOpts"`
	// IPAMConfig is presently unused and maintained exclusively for
	// compatibility.
	IPAMConfig map[string]string `json:"IPAMConfig"`
	// Links is presently unused and maintained exclusively for
	// compatibility.
	Links []string `json:"Links"`
}

InspectAdditionalNetwork holds information about non-default CNI networks the container has been connected to. As with InspectNetworkSettings, many fields are unused and maintained only for compatibility with Docker.

type InspectBasicNetworkConfig added in v1.9.0 

type InspectBasicNetworkConfig struct {
	// EndpointID is unused, maintained exclusively for compatibility.
	EndpointID string `json:"EndpointID"`
	// Gateway is the IP address of the gateway this network will use.
	Gateway string `json:"Gateway"`
	// IPAddress is the IP address for this network.
	IPAddress string `json:"IPAddress"`
	// IPPrefixLen is the length of the subnet mask of this network.
	IPPrefixLen int `json:"IPPrefixLen"`
	// SecondaryIPAddresses is a list of extra IP Addresses that the
	// container has been assigned in this network.
	SecondaryIPAddresses []string `json:"SecondaryIPAddresses,omitempty"`
	// IPv6Gateway is the IPv6 gateway this network will use.
	IPv6Gateway string `json:"IPv6Gateway"`
	// GlobalIPv6Address is the global-scope IPv6 Address for this network.
	GlobalIPv6Address string `json:"GlobalIPv6Address"`
	// GlobalIPv6PrefixLen is the length of the subnet mask of this network.
	GlobalIPv6PrefixLen int `json:"GlobalIPv6PrefixLen"`
	// SecondaryIPv6Addresses is a list of extra IPv6 Addresses that the
	// container has been assigned in this networ.
	SecondaryIPv6Addresses []string `json:"SecondaryIPv6Addresses,omitempty"`
	// MacAddress is the MAC address for the interface in this network.
	MacAddress string `json:"MacAddress"`
	// AdditionalMacAddresses is a set of additional MAC Addresses beyond
	// the first. CNI may configure more than one interface for a single
	// network, which can cause this.
	AdditionalMacAddresses []string `json:"AdditionalMACAddresses,omitempty"`
}

InspectBasicNetworkConfig holds basic configuration information (e.g. IP addresses, MAC address, subnet masks, etc) that are common for all networks (both additional and main).

type InspectBlkioThrottleDevice added in v1.9.0 

type InspectBlkioThrottleDevice struct {
	// Path is the path to the device this applies to.
	Path string `json:"Path"`
	// Rate is the maximum rate. It is in either bytes per second or iops
	// per second, determined by where it is used - documentation will
	// indicate which is appropriate.
	Rate uint64 `json:"Rate"`
}

InspectBlkioThrottleDevice holds information about a speed cap for a device node. This cap applies to a specific operation (read, write, etc) on the given node.

type InspectBlkioWeightDevice added in v1.9.0 

type InspectBlkioWeightDevice struct {
	// Path is the path to the device this applies to.
	Path string `json:"Path"`
	// Weight is the relative weight the scheduler will use when scheduling
	// I/O.
	Weight uint16 `json:"Weight"`
}

InspectBlkioWeightDevice holds information about the relative weight of an individual device node. Weights are used in the I/O scheduler to give relative priority to some accesses.

type InspectContainerConfig added in v1.9.0 

type InspectContainerConfig struct {
	// Container hostname
	Hostname string `json:"Hostname"`
	// Container domain name - unused at present
	DomainName string `json:"Domainname"`
	// User the container was launched with
	User string `json:"User"`
	// Unused, at present
	AttachStdin bool `json:"AttachStdin"`
	// Unused, at present
	AttachStdout bool `json:"AttachStdout"`
	// Unused, at present
	AttachStderr bool `json:"AttachStderr"`
	// Whether the container creates a TTY
	Tty bool `json:"Tty"`
	// Whether the container leaves STDIN open
	OpenStdin bool `json:"OpenStdin"`
	// Whether STDIN is only left open once.
	// Presently not supported by Podman, unused.
	StdinOnce bool `json:"StdinOnce"`
	// Container environment variables
	Env []string `json:"Env"`
	// Container command
	Cmd []string `json:"Cmd"`
	// Container image
	Image string `json:"Image"`
	// Unused, at present. I've never seen this field populated.
	Volumes map[string]struct{} `json:"Volumes"`
	// Container working directory
	WorkingDir string `json:"WorkingDir"`
	// Container entrypoint
	Entrypoint string `json:"Entrypoint"`
	// On-build arguments - presently unused. More of Buildah's domain.
	OnBuild *string `json:"OnBuild"`
	// Container labels
	Labels map[string]string `json:"Labels"`
	// Container annotations
	Annotations map[string]string `json:"Annotations"`
	// Container stop signal
	StopSignal uint `json:"StopSignal"`
	// Configured healthcheck for the container
	Healthcheck *manifest.Schema2HealthConfig `json:"Healthcheck,omitempty"`
	// CreateCommand is the full command plus arguments of the process the
	// container has been created with.
	CreateCommand []string `json:"CreateCommand,omitempty"`
}

InspectContainerConfig holds further data about how a container was initially configured.

type InspectContainerData added in v1.9.0 

type InspectContainerData struct {
	ID              string                      `json:"Id"`
	Created         time.Time                   `json:"Created"`
	Path            string                      `json:"Path"`
	Args            []string                    `json:"Args"`
	State           *InspectContainerState      `json:"State"`
	Image           string                      `json:"Image"`
	ImageName       string                      `json:"ImageName"`
	Rootfs          string                      `json:"Rootfs"`
	Pod             string                      `json:"Pod"`
	ResolvConfPath  string                      `json:"ResolvConfPath"`
	HostnamePath    string                      `json:"HostnamePath"`
	HostsPath       string                      `json:"HostsPath"`
	StaticDir       string                      `json:"StaticDir"`
	OCIConfigPath   string                      `json:"OCIConfigPath,omitempty"`
	OCIRuntime      string                      `json:"OCIRuntime,omitempty"`
	LogPath         string                      `json:"LogPath"`
	LogTag          string                      `json:"LogTag"`
	ConmonPidFile   string                      `json:"ConmonPidFile"`
	Name            string                      `json:"Name"`
	RestartCount    int32                       `json:"RestartCount"`
	Driver          string                      `json:"Driver"`
	MountLabel      string                      `json:"MountLabel"`
	ProcessLabel    string                      `json:"ProcessLabel"`
	AppArmorProfile string                      `json:"AppArmorProfile"`
	EffectiveCaps   []string                    `json:"EffectiveCaps"`
	BoundingCaps    []string                    `json:"BoundingCaps"`
	ExecIDs         []string                    `json:"ExecIDs"`
	GraphDriver     *driver.Data                `json:"GraphDriver"`
	SizeRw          *int64                      `json:"SizeRw,omitempty"`
	SizeRootFs      int64                       `json:"SizeRootFs,omitempty"`
	Mounts          []InspectMount              `json:"Mounts"`
	Dependencies    []string                    `json:"Dependencies"`
	NetworkSettings *InspectNetworkSettings     `json:"NetworkSettings"` //TODO
	ExitCommand     []string                    `json:"ExitCommand"`
	Namespace       string                      `json:"Namespace"`
	IsInfra         bool                        `json:"IsInfra"`
	Config          *InspectContainerConfig     `json:"Config"`
	HostConfig      *InspectContainerHostConfig `json:"HostConfig"`
}

InspectContainerData provides a detailed record of a container's configuration and state as viewed by Libpod. Large portions of this structure are defined such that the output is compatible with `docker inspect` JSON, but additional fields have been added as required to share information not in the original output.

type InspectContainerHostConfig added in v1.9.0 

type InspectContainerHostConfig struct {
	// Binds contains an array of user-added mounts.
	// Both volume mounts and named volumes are included.
	// Tmpfs mounts are NOT included.
	// In 'docker inspect' this is separated into 'Binds' and 'Mounts' based
	// on how a mount was added. We do not make this distinction and do not
	// include a Mounts field in inspect.
	// Format: <src>:<destination>[:<comma-separated options>]
	Binds []string `json:"Binds"`
	// ContainerIDFile is a file created during container creation to hold
	// the ID of the created container.
	// This is not handled within libpod and is stored in an annotation.
	ContainerIDFile string `json:"ContainerIDFile"`
	// LogConfig contains information on the container's logging backend
	LogConfig *InspectLogConfig `json:"LogConfig"`
	// NetworkMode is the configuration of the container's network
	// namespace.
	// Populated as follows:
	// default - A network namespace is being created and configured via CNI
	// none - A network namespace is being created, not configured via CNI
	// host - No network namespace created
	// container:<id> - Using another container's network namespace
	// ns:<path> - A path to a network namespace has been specified
	NetworkMode string `json:"NetworkMode"`
	// PortBindings contains the container's port bindings.
	// It is formatted as map[string][]InspectHostPort.
	// The string key here is formatted as <integer port number>/<protocol>
	// and represents the container port. A single container port may be
	// bound to multiple host ports (on different IPs).
	PortBindings map[string][]InspectHostPort `json:"PortBindings"`
	// RestartPolicy contains the container's restart policy.
	RestartPolicy *InspectRestartPolicy `json:"RestartPolicy"`
	// AutoRemove is whether the container will be automatically removed on
	// exiting.
	// It is not handled directly within libpod and is stored in an
	// annotation.
	AutoRemove bool `json:"AutoRemove"`
	// VolumeDriver is presently unused and is retained for Docker
	// compatibility.
	VolumeDriver string `json:"VolumeDriver"`
	// VolumesFrom is a list of containers which this container uses volumes
	// from. This is not handled directly within libpod and is stored in an
	// annotation.
	// It is formatted as an array of container names and IDs.
	VolumesFrom []string `json:"VolumesFrom"`
	// CapAdd is a list of capabilities added to the container.
	// It is not directly stored by Libpod, and instead computed from the
	// capabilities listed in the container's spec, compared against a set
	// of default capabilities.
	CapAdd []string `json:"CapAdd"`
	// CapDrop is a list of capabilities removed from the container.
	// It is not directly stored by libpod, and instead computed from the
	// capabilities listed in the container's spec, compared against a set
	// of default capabilities.
	CapDrop []string `json:"CapDrop"`
	// Dns is a list of DNS nameservers that will be added to the
	// container's resolv.conf
	Dns []string `json:"Dns"`
	// DnsOptions is a list of DNS options that will be set in the
	// container's resolv.conf
	DnsOptions []string `json:"DnsOptions"`
	// DnsSearch is a list of DNS search domains that will be set in the
	// container's resolv.conf
	DnsSearch []string `json:"DnsSearch"`
	// ExtraHosts contains hosts that will be aded to the container's
	// /etc/hosts.
	ExtraHosts []string `json:"ExtraHosts"`
	// GroupAdd contains groups that the user inside the container will be
	// added to.
	GroupAdd []string `json:"GroupAdd"`
	// IpcMode represents the configuration of the container's IPC
	// namespace.
	// Populated as follows:
	// "" (empty string) - Default, an IPC namespace will be created
	// host - No IPC namespace created
	// container:<id> - Using another container's IPC namespace
	// ns:<path> - A path to an IPC namespace has been specified
	IpcMode string `json:"IpcMode"`
	// Cgroup contains the container's cgroup. It is presently not
	// populated.
	// TODO.
	Cgroup string `json:"Cgroup"`
	// Cgroups contains the container's CGroup mode.
	// Allowed values are "default" (container is creating CGroups) and
	// "disabled" (container is not creating CGroups).
	// This is Libpod-specific and not included in `docker inspect`.
	Cgroups string `json:"Cgroups"`
	// Links is unused, and provided purely for Docker compatibility.
	Links []string `json:"Links"`
	// OOMScoreAdj is an adjustment that will be made to the container's OOM
	// score.
	OomScoreAdj int `json:"OomScoreAdj"`
	// PidMode represents the configuration of the container's PID
	// namespace.
	// Populated as follows:
	// "" (empty string) - Default, a PID namespace will be created
	// host - No PID namespace created
	// container:<id> - Using another container's PID namespace
	// ns:<path> - A path to a PID namespace has been specified
	PidMode string `json:"PidMode"`
	// Privileged indicates whether the container is running with elevated
	// privileges.
	// This has a very specific meaning in the Docker sense, so it's very
	// difficult to decode from the spec and config, and so is stored as an
	// annotation.
	Privileged bool `json:"Privileged"`
	// PublishAllPorts indicates whether image ports are being published.
	// This is not directly stored in libpod and is saved as an annotation.
	PublishAllPorts bool `json:"PublishAllPorts"`
	// ReadonlyRootfs is whether the container will be mounted read-only.
	ReadonlyRootfs bool `json:"ReadonlyRootfs"`
	// SecurityOpt is a list of security-related options that are set in the
	// container.
	SecurityOpt []string `json:"SecurityOpt"`
	// Tmpfs is a list of tmpfs filesystems that will be mounted into the
	// container.
	// It is a map of destination path to options for the mount.
	Tmpfs map[string]string `json:"Tmpfs"`
	// UTSMode represents the configuration of the container's UID
	// namespace.
	// Populated as follows:
	// "" (empty string) - Default, a UTS namespace will be created
	// host - no UTS namespace created
	// container:<id> - Using another container's UTS namespace
	// ns:<path> - A path to a UTS namespace has been specified
	UTSMode string `json:"UTSMode"`
	// UsernsMode represents the configuration of the container's user
	// namespace.
	// When running rootless, a user namespace is created outside of libpod
	// to allow some privileged operations. This will not be reflected here.
	// Populated as follows:
	// "" (empty string) - No user namespace will be created
	// private - The container will be run in a user namespace
	// container:<id> - Using another container's user namespace
	// ns:<path> - A path to a user namespace has been specified
	// TODO Rootless has an additional 'keep-id' option, presently not
	// reflected here.
	UsernsMode string `json:"UsernsMode"`
	// ShmSize is the size of the container's SHM device.
	ShmSize int64 `json:"ShmSize"`
	// Runtime is provided purely for Docker compatibility.
	// It is set unconditionally to "oci" as Podman does not presently
	// support non-OCI runtimes.
	Runtime string `json:"Runtime"`
	// ConsoleSize is an array of 2 integers showing the size of the
	// container's console.
	// It is only set if the container is creating a terminal.
	// TODO.
	ConsoleSize []uint `json:"ConsoleSize"`
	// Isolation is presently unused and provided solely for Docker
	// compatibility.
	Isolation string `json:"Isolation"`
	// CpuShares indicates the CPU resources allocated to the container.
	// It is a relative weight in the scheduler for assigning CPU time
	// versus other CGroups.
	CpuShares uint64 `json:"CpuShares"`
	// Memory indicates the memory resources allocated to the container.
	// This is the limit (in bytes) of RAM the container may use.
	Memory int64 `json:"Memory"`
	// NanoCpus indicates number of CPUs allocated to the container.
	// It is an integer where one full CPU is indicated by 1000000000 (one
	// billion).
	// Thus, 2.5 CPUs (fractional portions of CPUs are allowed) would be
	// 2500000000 (2.5 billion).
	// In 'docker inspect' this is set exclusively of two further options in
	// the output (CpuPeriod and CpuQuota) which are both used to implement
	// this functionality.
	// We can't distinguish here, so if CpuQuota is set to the default of
	// 100000, we will set both CpuQuota, CpuPeriod, and NanoCpus. If
	// CpuQuota is not the default, we will not set NanoCpus.
	NanoCpus int64 `json:"NanoCpus"`
	// CgroupParent is the CGroup parent of the container.
	// Only set if not default.
	CgroupParent string `json:"CgroupParent"`
	// BlkioWeight indicates the I/O resources allocated to the container.
	// It is a relative weight in the scheduler for assigning I/O time
	// versus other CGroups.
	BlkioWeight uint16 `json:"BlkioWeight"`
	// BlkioWeightDevice is an array of I/O resource priorities for
	// individual device nodes.
	// Unfortunately, the spec only stores the device's Major/Minor numbers
	// and not the path, which is used here.
	// Fortunately, the kernel provides an interface for retrieving the path
	// of a given node by major:minor at /sys/dev/. However, the exact path
	// in use may not be what was used in the original CLI invocation -
	// though it is guaranteed that the device node will be the same, and
	// using the given path will be functionally identical.
	BlkioWeightDevice []InspectBlkioWeightDevice `json:"BlkioWeightDevice"`
	// BlkioDeviceReadBps is an array of I/O throttle parameters for
	// individual device nodes.
	// This specifically sets read rate cap in bytes per second for device
	// nodes.
	// As with BlkioWeightDevice, we pull the path from /sys/dev, and we
	// don't guarantee the path will be identical to the original (though
	// the node will be).
	BlkioDeviceReadBps []InspectBlkioThrottleDevice `json:"BlkioDeviceReadBps"`
	// BlkioDeviceWriteBps is an array of I/O throttle parameters for
	// individual device nodes.
	// this specifically sets write rate cap in bytes per second for device
	// nodes.
	// as with BlkioWeightDevice, we pull the path from /sys/dev, and we
	// don't guarantee the path will be identical to the original (though
	// the node will be).
	BlkioDeviceWriteBps []InspectBlkioThrottleDevice `json:"BlkioDeviceWriteBps"`
	// BlkioDeviceReadIOps is an array of I/O throttle parameters for
	// individual device nodes.
	// This specifically sets the read rate cap in iops per second for
	// device nodes.
	// As with BlkioWeightDevice, we pull the path from /sys/dev, and we
	// don't guarantee the path will be identical to the original (though
	// the node will be).
	BlkioDeviceReadIOps []InspectBlkioThrottleDevice `json:"BlkioDeviceReadIOps"`
	// BlkioDeviceWriteIOps is an array of I/O throttle parameters for
	// individual device nodes.
	// This specifically sets the write rate cap in iops per second for
	// device nodes.
	// As with BlkioWeightDevice, we pull the path from /sys/dev, and we
	// don't guarantee the path will be identical to the original (though
	// the node will be).
	BlkioDeviceWriteIOps []InspectBlkioThrottleDevice `json:"BlkioDeviceWriteIOps"`
	// CpuPeriod is the length of a CPU period in microseconds.
	// It relates directly to CpuQuota.
	CpuPeriod uint64 `json:"CpuPeriod"`
	// CpuPeriod is the amount of time (in microseconds) that a container
	// can use the CPU in every CpuPeriod.
	CpuQuota int64 `json:"CpuQuota"`
	// CpuRealtimePeriod is the length of time (in microseconds) of the CPU
	// realtime period. If set to 0, no time will be allocated to realtime
	// tasks.
	CpuRealtimePeriod uint64 `json:"CpuRealtimePeriod"`
	// CpuRealtimeRuntime is the length of time (in microseconds) allocated
	// for realtime tasks within every CpuRealtimePeriod.
	CpuRealtimeRuntime int64 `json:"CpuRealtimeRuntime"`
	// CpusetCpus is the is the set of CPUs that the container will execute
	// on. Formatted as `0-3` or `0,2`. Default (if unset) is all CPUs.
	CpusetCpus string `json:"CpusetCpus"`
	// CpusetMems is the set of memory nodes the container will use.
	// Formatted as `0-3` or `0,2`. Default (if unset) is all memory nodes.
	CpusetMems string `json:"CpusetMems"`
	// Devices is a list of device nodes that will be added to the
	// container.
	// These are stored in the OCI spec only as type, major, minor while we
	// display the host path. We convert this with /sys/dev, but we cannot
	// guarantee that the host path will be identical - only that the actual
	// device will be.
	Devices []InspectDevice `json:"Devices"`
	// DiskQuota is the maximum amount of disk space the container may use
	// (in bytes).
	// Presently not populated.
	// TODO.
	DiskQuota uint64 `json:"DiskQuota"`
	// KernelMemory is the maximum amount of memory the kernel will devote
	// to the container.
	KernelMemory int64 `json:"KernelMemory"`
	// MemoryReservation is the reservation (soft limit) of memory available
	// to the container. Soft limits are warnings only and can be exceeded.
	MemoryReservation int64 `json:"MemoryReservation"`
	// MemorySwap is the total limit for all memory available to the
	// container, including swap. 0 indicates that there is no limit to the
	// amount of memory available.
	MemorySwap int64 `json:"MemorySwap"`
	// MemorySwappiness is the willingness of the kernel to page container
	// memory to swap. It is an integer from 0 to 100, with low numbers
	// being more likely to be put into swap.
	// -1, the default, will not set swappiness and use the system defaults.
	MemorySwappiness int64 `json:"MemorySwappiness"`
	// OomKillDisable indicates whether the kernel OOM killer is disabled
	// for the container.
	OomKillDisable bool `json:"OomKillDisable"`
	// Init indicates whether the container has an init mounted into it.
	Init bool `json:"Init,omitempty"`
	// PidsLimit is the maximum number of PIDs what may be created within
	// the container. 0, the default, indicates no limit.
	PidsLimit int64 `json:"PidsLimit"`
	// Ulimits is a set of ulimits that will be set within the container.
	Ulimits []InspectUlimit `json:"Ulimits"`
	// CpuCount is Windows-only and not presently implemented.
	CpuCount uint64 `json:"CpuCount"`
	// CpuPercent is Windows-only and not presently implemented.
	CpuPercent uint64 `json:"CpuPercent"`
	// IOMaximumIOps is Windows-only and not presently implemented.
	IOMaximumIOps uint64 `json:"IOMaximumIOps"`
	// IOMaximumBandwidth is Windows-only and not presently implemented.
	IOMaximumBandwidth uint64 `json:"IOMaximumBandwidth"`
}

InspectContainerHostConfig holds information used when the container was created. It's very much a Docker-specific struct, retained (mostly) as-is for compatibility. We fill individual fields as best as we can, inferring as much as possible from the spec and container config. Some things cannot be inferred. These will be populated by spec annotations (if available). Field names are fixed for compatibility and cannot be changed. As such, silence lint warnings about them. nolint

type InspectContainerState added in v1.9.0 

type InspectContainerState struct {
	OciVersion  string             `json:"OciVersion"`
	Status      string             `json:"Status"`
	Running     bool               `json:"Running"`
	Paused      bool               `json:"Paused"`
	Restarting  bool               `json:"Restarting"` // TODO
	OOMKilled   bool               `json:"OOMKilled"`
	Dead        bool               `json:"Dead"`
	Pid         int                `json:"Pid"`
	ConmonPid   int                `json:"ConmonPid,omitempty"`
	ExitCode    int32              `json:"ExitCode"`
	Error       string             `json:"Error"` // TODO
	StartedAt   time.Time          `json:"StartedAt"`
	FinishedAt  time.Time          `json:"FinishedAt"`
	Healthcheck HealthCheckResults `json:"Healthcheck,omitempty"`
}

InspectContainerState provides a detailed record of a container's current state. It is returned as part of InspectContainerData. As with InspectContainerData, many portions of this struct are matched to Docker, but here we see more fields that are unused (nonsensical in the context of Libpod).

type InspectDevice added in v1.9.0 

type InspectDevice struct {
	// PathOnHost is the path of the device on the host.
	PathOnHost string `json:"PathOnHost"`
	// PathInContainer is the path of the device within the container.
	PathInContainer string `json:"PathInContainer"`
	// CgroupPermissions is the permissions of the mounted device.
	// Presently not populated.
	// TODO.
	CgroupPermissions string `json:"CgroupPermissions"`
}

InspectDevice is a single device that will be mounted into the container.

type InspectExecProcess added in v1.9.0 

type InspectExecProcess struct {
	// Arguments are the arguments to the entrypoint command of the exec
	// session.
	Arguments []string `json:"arguments"`
	// Entrypoint is the entrypoint for the exec session (the command that
	// will be executed in the container).
	Entrypoint string `json:"entrypoint"`
	// Privileged is whether the exec session will be started with elevated
	// privileges.
	Privileged bool `json:"privileged"`
	// Tty is whether the exec session created a terminal.
	Tty bool `json:"tty"`
	// User is the user the exec session was started as.
	User string `json:"user"`
}

InspectExecProcess contains information about the process in a given exec session.

type InspectExecSession added in v1.9.0 

type InspectExecSession struct {
	// CanRemove is legacy and used purely for compatibility reasons.
	// Will always be set to true, unless the exec session is running.
	CanRemove bool `json:"CanRemove"`
	// ContainerID is the ID of the container this exec session is attached
	// to.
	ContainerID string `json:"ContainerID"`
	// DetachKeys are the detach keys used by the exec session.
	// If set to "" the default keys are being used.
	// Will show "<none>" if no detach keys are set.
	DetachKeys string `json:"DetachKeys"`
	// ExitCode is the exit code of the exec session. Will be set to 0 if
	// the exec session has not yet exited.
	ExitCode int `json:"ExitCode"`
	// ID is the ID of the exec session.
	ID string `json:"ID"`
	// OpenStderr is whether the container's STDERR stream will be attached.
	// Always set to true if the exec session created a TTY.
	OpenStderr bool `json:"OpenStderr"`
	// OpenStdin is whether the container's STDIN stream will be attached
	// to.
	OpenStdin bool `json:"OpenStdin"`
	// OpenStdout is whether the container's STDOUT stream will be attached.
	// Always set to true if the exec session created a TTY.
	OpenStdout bool `json:"OpenStdout"`
	// Running is whether the exec session is running.
	Running bool `json:"Running"`
	// Pid is the PID of the exec session's process.
	// Will be set to 0 if the exec session is not running.
	Pid int `json:"Pid"`
	// ProcessConfig contains information about the exec session's process.
	ProcessConfig *InspectExecProcess `json:"ProcessConfig"`
}

InspectExecSession contains information about a given exec session.

type InspectHostPort added in v1.9.0 

type InspectHostPort struct {
	// IP on the host we are bound to. "" if not specified (binding to all
	// IPs).
	HostIP string `json:"HostIp"`
	// Port on the host we are bound to. No special formatting - just an
	// integer stuffed into a string.
	HostPort string `json:"HostPort"`
}

InspectHostPort provides information on a port on the host that a container's port is bound to.

type InspectLogConfig added in v1.9.0 

type InspectLogConfig struct {
	Type   string            `json:"Type"`
	Config map[string]string `json:"Config"` //idk type, TODO
}

InspectLogConfig holds information about a container's configured log driver and is presently unused. It is retained for Docker compatibility.

type InspectMount added in v1.9.0 

type InspectMount struct {
	// Whether the mount is a volume or bind mount. Allowed values are
	// "volume" and "bind".
	Type string `json:"Type"`
	// The name of the volume. Empty for bind mounts.
	Name string `json:"Name,omptempty"`
	// The source directory for the volume.
	Source string `json:"Source"`
	// The destination directory for the volume. Specified as a path within
	// the container, as it would be passed into the OCI runtime.
	Destination string `json:"Destination"`
	// The driver used for the named volume. Empty for bind mounts.
	Driver string `json:"Driver"`
	// Contains SELinux :z/:Z mount options. Unclear what, if anything, else
	// goes in here.
	Mode string `json:"Mode"`
	// All remaining mount options. Additional data, not present in the
	// original output.
	Options []string `json:"Options"`
	// Whether the volume is read-write
	RW bool `json:"RW"`
	// Mount propagation for the mount. Can be empty if not specified, but
	// is always printed - no omitempty.
	Propagation string `json:"Propagation"`
}

InspectMount provides a record of a single mount in a container. It contains fields for both named and normal volumes. Only user-specified volumes will be included, and tmpfs volumes are not included even if the user specified them.

type InspectNetworkSettings added in v1.9.0 

type InspectNetworkSettings struct {
	InspectBasicNetworkConfig

	Bridge                 string               `json:"Bridge"`
	SandboxID              string               `json:"SandboxID"`
	HairpinMode            bool                 `json:"HairpinMode"`
	LinkLocalIPv6Address   string               `json:"LinkLocalIPv6Address"`
	LinkLocalIPv6PrefixLen int                  `json:"LinkLocalIPv6PrefixLen"`
	Ports                  []ocicni.PortMapping `json:"Ports"`
	SandboxKey             string               `json:"SandboxKey"`
	// Networks contains information on non-default CNI networks this
	// container has joined.
	// It is a map of network name to network information.
	Networks map[string]*InspectAdditionalNetwork `json:"Networks,omitempty"`
}

InspectNetworkSettings holds information about the network settings of the container. Many fields are maintained only for compatibility with `docker inspect` and are unused within Libpod.

type InspectRestartPolicy added in v1.9.0 

type InspectRestartPolicy struct {
	// Name contains the container's restart policy.
	// Allowable values are "no" or "" (take no action),
	// "on-failure" (restart on non-zero exit code, with an optional max
	// retry count), and "always" (always restart on container stop, unless
	// explicitly requested by API).
	// Note that this is NOT actually a name of any sort - the poor naming
	// is for Docker compatibility.
	Name string `json:"Name"`
	// MaximumRetryCount is the maximum number of retries allowed if the
	// "on-failure" restart policy is in use. Not used if "on-failure" is
	// not set.
	MaximumRetryCount uint `json:"MaximumRetryCount"`
}

InspectRestartPolicy holds information about the container's restart policy.

type InspectUlimit added in v1.9.0 

type InspectUlimit struct {
	// Name is the name (type) of the ulimit.
	Name string `json:"Name"`
	// Soft is the soft limit that will be applied.
	Soft uint64 `json:"Soft"`
	// Hard is the hard limit that will be applied.
	Hard uint64 `json:"Hard"`
}

InspectUlimit is a ulimit that will be applied to the container.

type OCIRuntimeInfo added in v1.9.0 

type OCIRuntimeInfo struct {
	Name    string `json:"name"`
	Package string `json:"package"`
	Path    string `json:"path"`
	Version string `json:"version"`
}

OCIRuntimeInfo describes the runtime (crun or runc) being used with podman

type RuntimeStateStore added in v1.6.3 

type RuntimeStateStore int

RuntimeStateStore is a constant indicating which state store implementation should be used by libpod 

const (
	// InvalidStateStore is an invalid state store
	InvalidStateStore RuntimeStateStore = iota
	// InMemoryStateStore is an in-memory state that will not persist data
	// on containers and pods between libpod instances or after system
	// reboot
	InMemoryStateStore RuntimeStateStore = iota
	// SQLiteStateStore is a state backed by a SQLite database
	// It is presently disabled
	SQLiteStateStore RuntimeStateStore = iota
	// BoltDBStateStore is a state backed by a BoltDB database
	BoltDBStateStore RuntimeStateStore = iota
	// ContainerCreateTimeout is the timeout before we decide we've failed
	// to create a container.
	// TODO: Make this generic - all OCI runtime operations should use the
	// same timeout, this one.
	// TODO: Consider dropping from 240 to 60 seconds. I don't think waiting
	// 4 minutes versus 1 minute makes a real difference.
	ContainerCreateTimeout = 240 * time.Second
)

type SlirpInfo added in v1.9.0 

type SlirpInfo struct {
	Executable string `json:"executable"`
	Package    string `json:"package"`
	Version    string `json:"version"`
}

SlirpInfo describes the slirp exectuable that is being being used.

type StoreInfo added in v1.9.0 

type StoreInfo struct {
	ConfigFile      string                 `json:"configFile"`
	ContainerStore  ContainerStore         `json:"containerStore"`
	GraphDriverName string                 `json:"graphDriverName"`
	GraphOptions    map[string]interface{} `json:"graphOptions"`
	GraphRoot       string                 `json:"graphRoot"`
	GraphStatus     map[string]string      `json:"graphStatus"`
	ImageStore      ImageStore             `json:"imageStore"`
	RunRoot         string                 `json:"runRoot"`
	VolumePath      string                 `json:"volumePath"`
}

StoreInfo describes the container storage and its attributes

type Version 

type Version struct {
	RemoteAPIVersion int64
	Version          string
	GoVersion        string
	GitCommit        string
	Built            int64
	OsArch           string
}

Version is an output struct for varlink

func GetVersion 

func GetVersion() (Version, error)

GetVersion returns a VersionOutput struct for varlink and podman

Source Files

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