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Scheduler [config.openshift.io/v1]

Description

Scheduler holds cluster-wide config information to run the Kubernetes Scheduler and influence its placement decisions. The canonical name for this config is cluster. Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer).

Type

object

Required

  • spec

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/sig-architecture/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/sig-architecture/api-conventions.md#types-kinds

metadata

ObjectMeta

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

spec

object

spec holds user settable values for configuration

status

object

status holds observed values from the cluster. They may not be overridden.

.spec

Description

spec holds user settable values for configuration

Type

object

Property Type Description

defaultNodeSelector

string

defaultNodeSelector helps set the cluster-wide default node selector to restrict pod placement to specific nodes. This is applied to the pods created in all namespaces and creates an intersection with any existing nodeSelectors already set on a pod, additionally constraining that pod’s selector. For example, defaultNodeSelector: "type=user-node,region=east" would set nodeSelector field in pod spec to "type=user-node,region=east" to all pods created in all namespaces. Namespaces having project-wide node selectors won’t be impacted even if this field is set. This adds an annotation section to the namespace. For example, if a new namespace is created with node-selector='type=user-node,region=east', the annotation openshift.io/node-selector: type=user-node,region=east gets added to the project. When the openshift.io/node-selector annotation is set on the project the value is used in preference to the value we are setting for defaultNodeSelector field. For instance, openshift.io/node-selector: "type=user-node,region=west" means that the default of "type=user-node,region=east" set in defaultNodeSelector would not be applied.

mastersSchedulable

boolean

MastersSchedulable allows masters nodes to be schedulable. When this flag is turned on, all the master nodes in the cluster will be made schedulable, so that workload pods can run on them. The default value for this field is false, meaning none of the master nodes are schedulable. Important Note: Once the workload pods start running on the master nodes, extreme care must be taken to ensure that cluster-critical control plane components are not impacted. Please turn on this field after doing due diligence.

policy

object

DEPRECATED: the scheduler Policy API has been deprecated and will be removed in a future release. policy is a reference to a ConfigMap containing scheduler policy which has user specified predicates and priorities. If this ConfigMap is not available scheduler will default to use DefaultAlgorithmProvider. The namespace for this configmap is openshift-config.

profile

string

profile sets which scheduling profile should be set in order to configure scheduling decisions for new pods. Valid values are "LowNodeUtilization", "HighNodeUtilization", "NoScoring" Defaults to "LowNodeUtilization"

.spec.policy

Description

DEPRECATED: the scheduler Policy API has been deprecated and will be removed in a future release. policy is a reference to a ConfigMap containing scheduler policy which has user specified predicates and priorities. If this ConfigMap is not available scheduler will default to use DefaultAlgorithmProvider. The namespace for this configmap is openshift-config.

Type

object

Required

  • name

Property Type Description

name

string

name is the metadata.name of the referenced config map

.status

Description

status holds observed values from the cluster. They may not be overridden.

Type

object

API endpoints

The following API endpoints are available:

  • /apis/config.openshift.io/v1/schedulers

    • DELETE: delete collection of Scheduler

    • GET: list objects of kind Scheduler

    • POST: create a Scheduler

  • /apis/config.openshift.io/v1/schedulers/{name}

    • DELETE: delete a Scheduler

    • GET: read the specified Scheduler

    • PATCH: partially update the specified Scheduler

    • PUT: replace the specified Scheduler

  • /apis/config.openshift.io/v1/schedulers/{name}/status

    • GET: read status of the specified Scheduler

    • PATCH: partially update status of the specified Scheduler

    • PUT: replace status of the specified Scheduler

/apis/config.openshift.io/v1/schedulers

HTTP method

DELETE

Description

delete collection of Scheduler

Table 1. HTTP responses
HTTP code Reponse body

200 - OK

Status schema

401 - Unauthorized

Empty
HTTP method

GET

Description

list objects of kind Scheduler

Table 2. HTTP responses
HTTP code Reponse body

200 - OK

SchedulerList schema

401 - Unauthorized

Empty
HTTP method

POST

Description

create a Scheduler

Table 3. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.
Table 4. Body parameters
Parameter Type Description

body

Scheduler schema
Table 5. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

201 - Created

Scheduler schema

202 - Accepted

Scheduler schema

401 - Unauthorized

Empty

/apis/config.openshift.io/v1/schedulers/{name}

Table 6. Global path parameters
Parameter Type Description

name

string

name of the Scheduler
HTTP method

DELETE

Description

delete a Scheduler

Table 7. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed
Table 8. HTTP responses
HTTP code Reponse body

200 - OK

Status schema

202 - Accepted

Status schema

401 - Unauthorized

Empty
HTTP method

GET

Description

read the specified Scheduler

Table 9. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

401 - Unauthorized

Empty
HTTP method

PATCH

Description

partially update the specified Scheduler

Table 10. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.
Table 11. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

401 - Unauthorized

Empty
HTTP method

PUT

Description

replace the specified Scheduler

Table 12. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.
Table 13. Body parameters
Parameter Type Description

body

Scheduler schema
Table 14. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

201 - Created

Scheduler schema

401 - Unauthorized

Empty

/apis/config.openshift.io/v1/schedulers/{name}/status

Table 15. Global path parameters
Parameter Type Description

name

string

name of the Scheduler
HTTP method

GET

Description

read status of the specified Scheduler

Table 16. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

401 - Unauthorized

Empty
HTTP method

PATCH

Description

partially update status of the specified Scheduler

Table 17. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.
Table 18. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

401 - Unauthorized

Empty
HTTP method

PUT

Description

replace status of the specified Scheduler

Table 19. Query parameters
Parameter Type Description

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.
Table 20. Body parameters
Parameter Type Description

body

Scheduler schema
Table 21. HTTP responses
HTTP code Reponse body

200 - OK

Scheduler schema

201 - Created

Scheduler schema

401 - Unauthorized

Empty