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Published: Apr 5, 2024 License: Apache-2.0 Imports: 0 Imported by: 54,303



Package types implements various generic types used throughout kubernetes.



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type NamespacedName

type NamespacedName struct {
	Namespace string
	Name      string

func (NamespacedName) MarshalLog added in v0.27.0

func (n NamespacedName) MarshalLog() interface{}

MarshalLog emits a struct containing required key/value pair

func (NamespacedName) String

func (n NamespacedName) String() string

String returns the general purpose string representation

type NodeName

type NodeName string

NodeName is a type that holds a api.Node's Name identifier. Being a type captures intent and helps make sure that the node name is not confused with similar concepts (the hostname, the cloud provider id, the cloud provider name etc)

To clarify the various types:

  • Node.Name is the Name field of the Node in the API. This should be stored in a NodeName. Unfortunately, because Name is part of ObjectMeta, we can't store it as a NodeName at the API level.

  • Hostname is the hostname of the local machine (from uname -n). However, some components allow the user to pass in a --hostname-override flag, which will override this in most places. In the absence of anything more meaningful, kubelet will use Hostname as the Node.Name when it creates the Node.

* The cloudproviders have the own names: GCE has InstanceName, AWS has InstanceId.

For GCE, InstanceName is the Name of an Instance object in the GCE API.  On GCE, Instance.Name becomes the
Hostname, and thus it makes sense also to use it as the Node.Name.  But that is GCE specific, and it is up
to the cloudprovider how to do this mapping.

For AWS, the InstanceID is not yet suitable for use as a Node.Name, so we actually use the
PrivateDnsName for the Node.Name.  And this is _not_ always the same as the hostname: if
we are using a custom DHCP domain it won't be.

type PatchType

type PatchType string

Similarly to above, these are constants to support HTTP PATCH utilized by both the client and server that didn't make sense for a whole package to be dedicated to.

const (
	JSONPatchType           PatchType = "application/json-patch+json"
	MergePatchType          PatchType = "application/merge-patch+json"
	StrategicMergePatchType PatchType = "application/strategic-merge-patch+json"
	ApplyPatchType          PatchType = "application/apply-patch+yaml"

type UID

type UID string

UID is a type that holds unique ID values, including UUIDs. Because we don't ONLY use UUIDs, this is an alias to string. Being a type captures intent and helps make sure that UIDs and names do not get conflated.

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