Soon, all Red Hat OpenShift documentation will only be available on docs.redhat.com, the official location of all Red Hat product documentation. Get familiar with the updated experience today!
  1. Documentation
×

ReplicationController [core/v1]

Important

Azure Red Hat OpenShift 3.11 will be retired 30 June 2022. Support for creation of new Azure Red Hat OpenShift 3.11 clusters continues through 30 November 2020. Following retirement, remaining Azure Red Hat OpenShift 3.11 clusters will be shut down to prevent security vulnerabilities.

Follow this guide to create an Azure Red Hat OpenShift 4 cluster. If you have specific questions, please contact us

Specification

Property Type Description

.apiVersion

string

APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#resources

.kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds

.metadata

ObjectMeta meta/v1

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

.spec

object

ReplicationControllerSpec is the specification of a replication controller.

.status

object

ReplicationControllerStatus represents the current status of a replication controller.
.spec
Description

ReplicationControllerSpec is the specification of a replication controller.

Type

object

Property Type Description

minReadySeconds

integer

Minimum number of seconds for which a newly created pod should be ready without any of its container crashing, for it to be considered available. Defaults to 0 (pod will be considered available as soon as it is ready)

replicas

integer

Replicas is the number of desired replicas. This is a pointer to distinguish between explicit zero and unspecified. Defaults to 1. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller#what-is-a-replicationcontroller

selector

object (string)

Selector is a label query over pods that should match the Replicas count. If Selector is empty, it is defaulted to the labels present on the Pod template. Label keys and values that must match in order to be controlled by this replication controller, if empty defaulted to labels on Pod template. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors

template

object

PodTemplateSpec describes the data a pod should have when created from a template
.spec.template
Description

PodTemplateSpec describes the data a pod should have when created from a template

Type

object

Property Type Description

metadata

ObjectMeta meta/v1

Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata

spec

object

PodSpec is a description of a pod.
.spec.template.spec
Description

PodSpec is a description of a pod.

Type

object

Required

  • containers

Property Type Description

activeDeadlineSeconds

integer

Optional duration in seconds the pod may be active on the node relative to StartTime before the system will actively try to mark it failed and kill associated containers. Value must be a positive integer.

affinity

Affinity core/v1

If specified, the pod’s scheduling constraints

automountServiceAccountToken

boolean

AutomountServiceAccountToken indicates whether a service account token should be automatically mounted.

containers

array (Container core/v1)

List of containers belonging to the pod. Containers cannot currently be added or removed. There must be at least one container in a Pod. Cannot be updated.

dnsConfig

PodDNSConfig core/v1

Specifies the DNS parameters of a pod. Parameters specified here will be merged to the generated DNS configuration based on DNSPolicy.

dnsPolicy

string

Set DNS policy for the pod. Defaults to "ClusterFirst". Valid values are 'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'. DNS parameters given in DNSConfig will be merged with the policy selected with DNSPolicy. To have DNS options set along with hostNetwork, you have to specify DNS policy explicitly to 'ClusterFirstWithHostNet'.

hostAliases

array (HostAlias core/v1)

HostAliases is an optional list of hosts and IPs that will be injected into the pod’s hosts file if specified. This is only valid for non-hostNetwork pods.

hostIPC

boolean

Use the host’s ipc namespace. Optional: Default to false.

hostNetwork

boolean

Host networking requested for this pod. Use the host’s network namespace. If this option is set, the ports that will be used must be specified. Default to false.

hostPID

boolean

Use the host’s pid namespace. Optional: Default to false.

hostname

string

Specifies the hostname of the Pod If not specified, the pod’s hostname will be set to a system-defined value.

imagePullSecrets

array (LocalObjectReference core/v1)

ImagePullSecrets is an optional list of references to secrets in the same namespace to use for pulling any of the images used by this PodSpec. If specified, these secrets will be passed to individual puller implementations for them to use. For example, in the case of docker, only DockerConfig type secrets are honored. More info: https://kubernetes.io/docs/concepts/containers/images#specifying-imagepullsecrets-on-a-pod

initContainers

array (Container core/v1)

List of initialization containers belonging to the pod. Init containers are executed in order prior to containers being started. If any init container fails, the pod is considered to have failed and is handled according to its restartPolicy. The name for an init container or normal container must be unique among all containers. Init containers may not have Lifecycle actions, Readiness probes, or Liveness probes. The resourceRequirements of an init container are taken into account during scheduling by finding the highest request/limit for each resource type, and then using the max of of that value or the sum of the normal containers. Limits are applied to init containers in a similar fashion. Init containers cannot currently be added or removed. Cannot be updated. More info: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/

nodeName

string

NodeName is a request to schedule this pod onto a specific node. If it is non-empty, the scheduler simply schedules this pod onto that node, assuming that it fits resource requirements.

nodeSelector

object (string)

NodeSelector is a selector which must be true for the pod to fit on a node. Selector which must match a node’s labels for the pod to be scheduled on that node. More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/

priority

integer

The priority value. Various system components use this field to find the priority of the pod. When Priority Admission Controller is enabled, it prevents users from setting this field. The admission controller populates this field from PriorityClassName. The higher the value, the higher the priority.

priorityClassName

string

If specified, indicates the pod’s priority. "system-node-critical" and "system-cluster-critical" are two special keywords which indicate the highest priorities with the former being the highest priority. Any other name must be defined by creating a PriorityClass object with that name. If not specified, the pod priority will be default or zero if there is no default.

readinessGates

array (PodReadinessGate core/v1)

If specified, all readiness gates will be evaluated for pod readiness. A pod is ready when all its containers are ready AND all conditions specified in the readiness gates have status equal to "True" More info: https://github.com/kubernetes/community/blob/master/keps/sig-network/0007-pod-ready%2B%2B.md

restartPolicy

string

Restart policy for all containers within the pod. One of Always, OnFailure, Never. Default to Always. More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#restart-policy

schedulerName

string

If specified, the pod will be dispatched by specified scheduler. If not specified, the pod will be dispatched by default scheduler.

securityContext

PodSecurityContext core/v1

SecurityContext holds pod-level security attributes and common container settings. Optional: Defaults to empty. See type description for default values of each field.

serviceAccount

string

DeprecatedServiceAccount is a depreciated alias for ServiceAccountName. Deprecated: Use serviceAccountName instead.

serviceAccountName

string

ServiceAccountName is the name of the ServiceAccount to use to run this pod. More info: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/

shareProcessNamespace

boolean

Share a single process namespace between all of the containers in a pod. When this is set containers will be able to view and signal processes from other containers in the same pod, and the first process in each container will not be assigned PID 1. HostPID and ShareProcessNamespace cannot both be set. Optional: Default to false. This field is alpha-level and is honored only by servers that enable the PodShareProcessNamespace feature.

subdomain

string

If specified, the fully qualified Pod hostname will be "<hostname>.<subdomain>.<pod namespace>.svc.<cluster domain>". If not specified, the pod will not have a domainname at all.

terminationGracePeriodSeconds

integer

Optional duration in seconds the pod needs to terminate gracefully. May be decreased in delete request. Value must be non-negative integer. The value zero indicates delete immediately. If this value is nil, the default grace period will be used instead. The grace period is the duration in seconds after the processes running in the pod are sent a termination signal and the time when the processes are forcibly halted with a kill signal. Set this value longer than the expected cleanup time for your process. Defaults to 30 seconds.

tolerations

array (Toleration core/v1)

If specified, the pod’s tolerations.

volumes

array (Volume core/v1)

List of volumes that can be mounted by containers belonging to the pod. More info: https://kubernetes.io/docs/concepts/storage/volumes
.status
Description

ReplicationControllerStatus represents the current status of a replication controller.

Type

object

Required

  • replicas

Property Type Description

availableReplicas

integer

The number of available replicas (ready for at least minReadySeconds) for this replication controller.

conditions

array (ReplicationControllerCondition core/v1)

Represents the latest available observations of a replication controller’s current state.

fullyLabeledReplicas

integer

The number of pods that have labels matching the labels of the pod template of the replication controller.

observedGeneration

integer

ObservedGeneration reflects the generation of the most recently observed replication controller.

readyReplicas

integer

The number of ready replicas for this replication controller.

replicas

integer

Replicas is the most recently oberved number of replicas. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller#what-is-a-replicationcontroller

API endpoints

The following API endpoints are available:

  • /api/v1/replicationcontrollers

    • GET: list or watch objects of kind ReplicationController

  • /api/v1/namespaces/{namespace}/replicationcontrollers

    • DELETE: delete collection of ReplicationController

    • GET: list or watch objects of kind ReplicationController

    • POST: create a ReplicationController

  • /api/v1/namespaces/{namespace}/replicationcontrollers/{name}

    • DELETE: delete a ReplicationController

    • GET: read the specified ReplicationController

    • PATCH: partially update the specified ReplicationController

    • PUT: replace the specified ReplicationController

  • /api/v1/namespaces/{namespace}/replicationcontrollers/{name}/scale

    • GET: read scale of the specified ReplicationController

    • PATCH: partially update scale of the specified ReplicationController

    • PUT: replace scale of the specified ReplicationController

  • /api/v1/namespaces/{namespace}/replicationcontrollers/{name}/status

    • GET: read status of the specified ReplicationController

    • PATCH: partially update status of the specified ReplicationController

    • PUT: replace status of the specified ReplicationController

/api/v1/replicationcontrollers

Table 1. Global guery parameters
Parameter Type Description

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server the server will respond with a 410 ResourceExpired error indicating the client must restart their list without the continue field. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

includeUninitialized

boolean

If true, partially initialized resources are included in the response.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

pretty

string

If 'true', then the output is pretty printed.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.
HTTP method

GET

Description

list or watch objects of kind ReplicationController

Table 2. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationControllerList core/v1

401 - Unauthorized

Empty

/api/v1/namespaces/{namespace}/replicationcontrollers

Table 3. Global path parameters
Parameter Type Description

namespace

string

object name and auth scope, such as for teams and projects
Table 4. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.
HTTP method

DELETE

Description

delete collection of ReplicationController

Table 5. Query parameters
Parameter Type Description

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server the server will respond with a 410 ResourceExpired error indicating the client must restart their list without the continue field. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

includeUninitialized

boolean

If true, partially initialized resources are included in the response.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.
Table 6. HTTP responses
HTTP code Reponse body

200 - OK

Status meta/v1

401 - Unauthorized

Empty
HTTP method

GET

Description

list or watch objects of kind ReplicationController

Table 7. Query parameters
Parameter Type Description

continue

string

The continue option should be set when retrieving more results from the server. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server the server will respond with a 410 ResourceExpired error indicating the client must restart their list without the continue field. This field is not supported when watch is true. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications.

fieldSelector

string

A selector to restrict the list of returned objects by their fields. Defaults to everything.

includeUninitialized

boolean

If true, partially initialized resources are included in the response.

labelSelector

string

A selector to restrict the list of returned objects by their labels. Defaults to everything.

limit

integer

limit is a maximum number of responses to return for a list call. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers may choose not to support the limit argument and will return all of the available results. If limit is specified and the continue field is empty, clients may assume that no more results are available. This field is not supported if watch is true.

The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. This is sometimes referred to as a consistent snapshot, and ensures that a client that is using limit to receive smaller chunks of a very large result can ensure they see all possible objects. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned.

resourceVersion

string

When specified with a watch call, shows changes that occur after that particular version of a resource. Defaults to changes from the beginning of history. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv.

timeoutSeconds

integer

Timeout for the list/watch call. This limits the duration of the call, regardless of any activity or inactivity.

watch

boolean

Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Specify resourceVersion.
Table 8. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationControllerList core/v1

401 - Unauthorized

Empty
HTTP method

POST

Description

create a ReplicationController

Table 9. Body parameters
Parameter Type Description

body

ReplicationController core/v1
Table 10. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

201 - Created

ReplicationController core/v1

202 - Accepted

ReplicationController core/v1

401 - Unauthorized

Empty

/api/v1/namespaces/{namespace}/replicationcontrollers/{name}

Table 11. Global path parameters
Parameter Type Description

name

string

name of the ReplicationController

namespace

string

object name and auth scope, such as for teams and projects
Table 12. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.
HTTP method

DELETE

Description

delete a ReplicationController

Table 13. Query parameters
Parameter Type Description

gracePeriodSeconds

integer

The duration in seconds before the object should be deleted. Value must be non-negative integer. The value zero indicates delete immediately. If this value is nil, the default grace period for the specified type will be used. Defaults to a per object value if not specified. zero means delete immediately.

orphanDependents

boolean

Deprecated: please use the PropagationPolicy, this field will be deprecated in 1.7. Should the dependent objects be orphaned. If true/false, the "orphan" finalizer will be added to/removed from the object's finalizers list. Either this field or PropagationPolicy may be set, but not both.

propagationPolicy

string

Whether and how garbage collection will be performed. Either this field or OrphanDependents may be set, but not both. The default policy is decided by the existing finalizer set in the metadata.finalizers and the resource-specific default policy. Acceptable values are: 'Orphan' - orphan the dependents; 'Background' - allow the garbage collector to delete the dependents in the background; 'Foreground' - a cascading policy that deletes all dependents in the foreground.
Table 14. Body parameters
Parameter Type Description

body

DeleteOptions meta/v1
Table 15. HTTP responses
HTTP code Reponse body

200 - OK

Status meta/v1

401 - Unauthorized

Empty
HTTP method

GET

Description

read the specified ReplicationController

Table 16. Query parameters
Parameter Type Description

exact

boolean

Should the export be exact. Exact export maintains cluster-specific fields like 'Namespace'.

export

boolean

Should this value be exported. Export strips fields that a user can not specify.
Table 17. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

401 - Unauthorized

Empty
HTTP method

PATCH

Description

partially update the specified ReplicationController

Table 18. Body parameters
Parameter Type Description

body

Patch meta/v1
Table 19. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

401 - Unauthorized

Empty
HTTP method

PUT

Description

replace the specified ReplicationController

Table 20. Body parameters
Parameter Type Description

body

ReplicationController core/v1
Table 21. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

201 - Created

ReplicationController core/v1

401 - Unauthorized

Empty

/api/v1/namespaces/{namespace}/replicationcontrollers/{name}/scale

Table 22. Global path parameters
Parameter Type Description

name

string

name of the Scale

namespace

string

object name and auth scope, such as for teams and projects
Table 23. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.
HTTP method

GET

Description

read scale of the specified ReplicationController

Table 24. HTTP responses
HTTP code Reponse body

200 - OK

Scale autoscaling/v1

401 - Unauthorized

Empty
HTTP method

PATCH

Description

partially update scale of the specified ReplicationController

Table 25. Body parameters
Parameter Type Description

body

Patch meta/v1
Table 26. HTTP responses
HTTP code Reponse body

200 - OK

Scale autoscaling/v1

401 - Unauthorized

Empty
HTTP method

PUT

Description

replace scale of the specified ReplicationController

Table 27. Body parameters
Parameter Type Description

body

Scale autoscaling/v1
Table 28. HTTP responses
HTTP code Reponse body

200 - OK

Scale autoscaling/v1

201 - Created

Scale autoscaling/v1

401 - Unauthorized

Empty

/api/v1/namespaces/{namespace}/replicationcontrollers/{name}/status

Table 29. Global path parameters
Parameter Type Description

name

string

name of the ReplicationController

namespace

string

object name and auth scope, such as for teams and projects
Table 30. Global guery parameters
Parameter Type Description

pretty

string

If 'true', then the output is pretty printed.
HTTP method

GET

Description

read status of the specified ReplicationController

Table 31. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

401 - Unauthorized

Empty
HTTP method

PATCH

Description

partially update status of the specified ReplicationController

Table 32. Body parameters
Parameter Type Description

body

Patch meta/v1
Table 33. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

401 - Unauthorized

Empty
HTTP method

PUT

Description

replace status of the specified ReplicationController

Table 34. Body parameters
Parameter Type Description

body

ReplicationController core/v1
Table 35. HTTP responses
HTTP code Reponse body

200 - OK

ReplicationController core/v1

201 - Created

ReplicationController core/v1

401 - Unauthorized

Empty