const (
	DefaultKubeletPodsDirName                = "pods"
	DefaultKubeletVolumesDirName             = "volumes"
	DefaultKubeletVolumeSubpathsDirName      = "volume-subpaths"
	DefaultKubeletVolumeDevicesDirName       = "volumeDevices"
	DefaultKubeletPluginsDirName             = "plugins"
	DefaultKubeletPluginsRegistrationDirName = "plugins_registry"
	DefaultKubeletContainersDirName          = "containers"
	DefaultKubeletPluginContainersDirName    = "plugin-containers"
	DefaultKubeletPodResourcesDirName        = "pod-resources"
	KubeletPluginsDirSELinuxLabel            = "system_u:object_r:container_file_t:s0"
	KubeletContainersSharedSELinuxLabel      = "system_u:object_r:container_file_t:s0"
	DefaultKubeletCheckpointsDirName         = "checkpoints"
	DefaultKubeletUserNamespacesIDsPerPod    = 65536
)

const WaitForAPIServerSyncPeriod = 1 * time.Second

var ErrStaticPodTriedToUseClusterTrustBundle = errors.New("static pods may not use ClusterTrustBundle projected volume sources")

type ContainerRuntimeOptions struct {

	// RuntimeCgroups that container runtime is expected to be isolated in.
	RuntimeCgroups string
	// PodSandboxImage is the image whose network/ipc namespaces
	// containers in each pod will use.
	PodSandboxImage string

	// ImageCredentialProviderConfigFile is the path to the credential provider plugin config file.
	// This config file is a specification for what credential providers are enabled and invoked
	// by the kubelet. The plugin config should contain information about what plugin binary
	// to execute and what container images the plugin should be called for.
	// +optional
	ImageCredentialProviderConfigFile string
	// ImageCredentialProviderBinDir is the path to the directory where credential provider plugin
	// binaries exist. The name of each plugin binary is expected to match the name of the plugin
	// specified in imageCredentialProviderConfigFile.
	// +optional
	ImageCredentialProviderBinDir string
}

type PodConfig struct {
	// contains filtered or unexported fields
}

type PodConfigNotificationMode int

const (
	// PodConfigNotificationUnknown is the default value for
	// PodConfigNotificationMode when uninitialized.
	PodConfigNotificationUnknown PodConfigNotificationMode = iota
	// PodConfigNotificationSnapshot delivers the full configuration as a SET whenever
	// any change occurs.
	PodConfigNotificationSnapshot
	// PodConfigNotificationSnapshotAndUpdates delivers an UPDATE and DELETE message whenever pods are
	// changed, and a SET message if there are any additions or removals.
	PodConfigNotificationSnapshotAndUpdates
	// PodConfigNotificationIncremental delivers ADD, UPDATE, DELETE, REMOVE, RECONCILE to the update channel.
	PodConfigNotificationIncremental
)

type SourcesReady interface {
	// AddSource adds the specified source to the set of sources managed.
	AddSource(source string)
	// AllReady returns true if the currently configured sources have all been seen.
	AllReady() bool
}

type SourcesReadyFn func(sourcesSeen sets.Set[string]) bool