Where is the complete list of kubernetes objects?
Following command successfully display all kubernetes objects
kubectl api-resources
Example
[root@hsk-controller ~]# kubectl api-resources
NAME SHORTNAMES KIND
bindings Binding
componentstatuses cs ComponentStatus
configmaps cm ConfigMap
endpoints ep Endpoints
events ev Event
limitranges limits LimitRange
namespaces ns Namespace
nodes no Node
persistentvolumeclaims pvc PersistentVolumeClaim
persistentvolumes pv PersistentVolume
pods po Pod
podtemplates PodTemplate
replicationcontrollers rc ReplicationController
resourcequotas quota ResourceQuota
secrets Secret
serviceaccounts sa ServiceAccount
services svc Service
initializerconfigurations InitializerConfiguration
mutatingwebhookconfigurations MutatingWebhookConfiguration
validatingwebhookconfigurations ValidatingWebhookConfiguration
customresourcedefinitions crd,crds CustomResourceDefinition
apiservices APIService
controllerrevisions ControllerRevision
daemonsets ds DaemonSet
deployments deploy Deployment
replicasets rs ReplicaSet
statefulsets sts StatefulSet
tokenreviews TokenReview
localsubjectaccessreviews LocalSubjectAccessReview
selfsubjectaccessreviews SelfSubjectAccessReview
selfsubjectrulesreviews SelfSubjectRulesReview
subjectaccessreviews SubjectAccessReview
horizontalpodautoscalers hpa HorizontalPodAutoscaler
cronjobs cj CronJob
jobs Job
brpolices br,bp BrPolicy
clusters rcc Cluster
filesystems rcfs Filesystem
objectstores rco ObjectStore
pools rcp Pool
certificatesigningrequests csr CertificateSigningRequest
leases Lease
events ev Event
daemonsets ds DaemonSet
deployments deploy Deployment
ingresses ing Ingress
networkpolicies netpol NetworkPolicy
podsecuritypolicies psp PodSecurityPolicy
replicasets rs ReplicaSet
nodes NodeMetrics
pods PodMetrics
networkpolicies netpol NetworkPolicy
poddisruptionbudgets pdb PodDisruptionBudget
podsecuritypolicies psp PodSecurityPolicy
clusterrolebindings ClusterRoleBinding
clusterroles ClusterRole
rolebindings RoleBinding
roles Role
volumes rv Volume
priorityclasses pc PriorityClass
storageclasses sc StorageClass
volumeattachments VolumeAttachment
Note: kubernate version is v1.12*
kubectl version
The following command list all supported API versions:
$ kubectl api-versions
You can have a bit detailed information from kube-apiserver REST API:
Open connection to kube-apiserver
$ kubectl proxy &
Now you can discover API resources:
This request gives you all existed paths on apiserver (in JSON format):
$ curl http://localhost:8001/
"/apis/extensions/v1beta1",
"/apis/networking.k8s.io",
"/apis/networking.k8s.io/v1",
"/apis/policy",
"/apis/policy/v1beta1",
"/apis/rbac.authorization.k8s.io",
"/apis/rbac.authorization.k8s.io/v1",
...
"/version"
]
}
You can request details about particular path:
curl http://localhost:8001/api/v1
...
{
"name": "configmaps",
"singularName": "",
"namespaced": true,
"kind": "ConfigMap",
"verbs": [
"create",
"delete",
"deletecollection",
"get",
"list",
"patch",
"update",
"watch"
],
"shortNames": [
"cm"
]
},
...
This information helps you to write kubectl commands, e.g.:
$ kubectl get configmaps
$ kubectl get cm
But you may find more convenient to use built-in documentation provided by kubectl explain.
For example, this command shows you a list of Kubernetes objects:
$ kubectl explain
You can have detailed information about any of listed resources:
$ kubectl explain rc
$ kubectl explain rc.spec
$ kubectl explain rc.spec.selector
Or you can print full blown YAML template(or part) of the object by adding --recursive flag:
$ kubectl explain rc --recursive
$ kubectl explain rc.metadata --recursive
Links in the desctiption points to the documentation about particular object. E.g.:
DESCRIPTION:
If the Labels of a ReplicationController are empty, they are defaulted to
be the same as the Pod(s) that the replication controller manages. Standard
object's metadata. More info:
https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata
ObjectMeta is metadata that all persisted resources must have, which
includes all objects users must create.
If you need complete description with examples you can always find it in the official API Reference (or the older version), mentioned by Matthew L Daniel
You also might find helpful kubectl Reference or kubectl Cheatsheet
Update: Using the following one-liner you can list all objects grouped by API versions (including CRDs). It may be useful to check if an object is present in more than one API group and therefore more than one apiVersion is applicable in its manifest. (For different apiVersions object configuration may be slightly different.)
a=$(kubectl api-versions) ; for n in $a ; do echo ; echo "apiVersion: $n" ; kubectl api-resources --api-group="${n%/*}" ; done
Partial example output:
...
apiVersion: autoscaling/v1
NAME SHORTNAMES APIGROUP NAMESPACED KIND
horizontalpodautoscalers hpa autoscaling true HorizontalPodAutoscaler
apiVersion: autoscaling/v2beta1
NAME SHORTNAMES APIGROUP NAMESPACED KIND
horizontalpodautoscalers hpa autoscaling true HorizontalPodAutoscaler
apiVersion: autoscaling/v2beta2
NAME SHORTNAMES APIGROUP NAMESPACED KIND
horizontalpodautoscalers hpa autoscaling true HorizontalPodAutoscaler
apiVersion: batch/v1
NAME SHORTNAMES APIGROUP NAMESPACED KIND
cronjobs cj batch true CronJob
jobs batch true Job
apiVersion: batch/v1beta1
NAME SHORTNAMES APIGROUP NAMESPACED KIND
cronjobs cj batch true CronJob
jobs batch true Job
...