Chapter 9. FeatureGate [config.openshift.io/v1]


Description
Feature holds cluster-wide information about feature gates. The canonical name 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

9.1. Specification

PropertyTypeDescription

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.

9.1.1. .spec

Description
spec holds user settable values for configuration
Type
object
PropertyTypeDescription

customNoUpgrade

``

customNoUpgrade allows the enabling or disabling of any feature. Turning this feature set on IS NOT SUPPORTED, CANNOT BE UNDONE, and PREVENTS UPGRADES. Because of its nature, this setting cannot be validated. If you have any typos or accidentally apply invalid combinations your cluster may fail in an unrecoverable way. featureSet must equal "CustomNoUpgrade" must be set to use this field.

featureSet

string

featureSet changes the list of features in the cluster. The default is empty. Be very careful adjusting this setting. Turning on or off features may cause irreversible changes in your cluster which cannot be undone.

9.1.2. .status

Description
status holds observed values from the cluster. They may not be overridden.
Type
object
PropertyTypeDescription

conditions

array

conditions represent the observations of the current state. Known .status.conditions.type are: "DeterminationDegraded"

conditions[]

object

Condition contains details for one aspect of the current state of this API Resource. --- This struct is intended for direct use as an array at the field path .status.conditions. For example, type FooStatus struct{ // Represents the observations of a foo’s current state. // Known .status.conditions.type are: "Available", "Progressing", and "Degraded" // +patchMergeKey=type // +patchStrategy=merge // +listType=map // +listMapKey=type Conditions []metav1.Condition json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,1,rep,name=conditions" // other fields }

featureGates

array

featureGates contains a list of enabled and disabled featureGates that are keyed by payloadVersion. Operators other than the CVO and cluster-config-operator, must read the .status.featureGates, locate the version they are managing, find the enabled/disabled featuregates and make the operand and operator match. The enabled/disabled values for a particular version may change during the life of the cluster as various .spec.featureSet values are selected. Operators may choose to restart their processes to pick up these changes, but remembering past enable/disable lists is beyond the scope of this API and is the responsibility of individual operators. Only featureGates with .version in the ClusterVersion.status will be present in this list.

featureGates[]

object

 

9.1.3. .status.conditions

Description
conditions represent the observations of the current state. Known .status.conditions.type are: "DeterminationDegraded"
Type
array

9.1.4. .status.conditions[]

Description
Condition contains details for one aspect of the current state of this API Resource. --- This struct is intended for direct use as an array at the field path .status.conditions. For example, type FooStatus struct{ // Represents the observations of a foo’s current state. // Known .status.conditions.type are: "Available", "Progressing", and "Degraded" // +patchMergeKey=type // +patchStrategy=merge // +listType=map // +listMapKey=type Conditions []metav1.Condition json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,1,rep,name=conditions" // other fields }
Type
object
Required
  • lastTransitionTime
  • message
  • reason
  • status
  • type
PropertyTypeDescription

lastTransitionTime

string

lastTransitionTime is the last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.

message

string

message is a human readable message indicating details about the transition. This may be an empty string.

observedGeneration

integer

observedGeneration represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date with respect to the current state of the instance.

reason

string

reason contains a programmatic identifier indicating the reason for the condition’s last transition. Producers of specific condition types may define expected values and meanings for this field, and whether the values are considered a guaranteed API. The value should be a CamelCase string. This field may not be empty.

status

string

status of the condition, one of True, False, Unknown.

type

string

type of condition in CamelCase or in foo.example.com/CamelCase. --- Many .condition.type values are consistent across resources like Available, but because arbitrary conditions can be useful (see .node.status.conditions), the ability to deconflict is important. The regex it matches is (dns1123SubdomainFmt/)?(qualifiedNameFmt)

9.1.5. .status.featureGates

Description
featureGates contains a list of enabled and disabled featureGates that are keyed by payloadVersion. Operators other than the CVO and cluster-config-operator, must read the .status.featureGates, locate the version they are managing, find the enabled/disabled featuregates and make the operand and operator match. The enabled/disabled values for a particular version may change during the life of the cluster as various .spec.featureSet values are selected. Operators may choose to restart their processes to pick up these changes, but remembering past enable/disable lists is beyond the scope of this API and is the responsibility of individual operators. Only featureGates with .version in the ClusterVersion.status will be present in this list.
Type
array

9.1.6. .status.featureGates[]

Description
Type
object
Required
  • version
PropertyTypeDescription

disabled

array

disabled is a list of all feature gates that are disabled in the cluster for the named version.

disabled[]

object

 

enabled

array

enabled is a list of all feature gates that are enabled in the cluster for the named version.

enabled[]

object

 

version

string

version matches the version provided by the ClusterVersion and in the ClusterOperator.Status.Versions field.

9.1.7. .status.featureGates[].disabled

Description
disabled is a list of all feature gates that are disabled in the cluster for the named version.
Type
array

9.1.8. .status.featureGates[].disabled[]

Description
Type
object
Required
  • name
PropertyTypeDescription

name

string

name is the name of the FeatureGate.

9.1.9. .status.featureGates[].enabled

Description
enabled is a list of all feature gates that are enabled in the cluster for the named version.
Type
array

9.1.10. .status.featureGates[].enabled[]

Description
Type
object
Required
  • name
PropertyTypeDescription

name

string

name is the name of the FeatureGate.

9.2. API endpoints

The following API endpoints are available:

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

    • DELETE: delete collection of FeatureGate
    • GET: list objects of kind FeatureGate
    • POST: create a FeatureGate
  • /apis/config.openshift.io/v1/featuregates/{name}

    • DELETE: delete a FeatureGate
    • GET: read the specified FeatureGate
    • PATCH: partially update the specified FeatureGate
    • PUT: replace the specified FeatureGate
  • /apis/config.openshift.io/v1/featuregates/{name}/status

    • GET: read status of the specified FeatureGate
    • PATCH: partially update status of the specified FeatureGate
    • PUT: replace status of the specified FeatureGate

9.2.1. /apis/config.openshift.io/v1/featuregates

HTTP method
DELETE
Description
delete collection of FeatureGate
Table 9.1. HTTP responses
HTTP codeReponse body

200 - OK

Status schema

401 - Unauthorized

Empty

HTTP method
GET
Description
list objects of kind FeatureGate
Table 9.2. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGateList schema

401 - Unauthorized

Empty

HTTP method
POST
Description
create a FeatureGate
Table 9.3. Query parameters
ParameterTypeDescription

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 9.4. Body parameters
ParameterTypeDescription

body

FeatureGate schema

 
Table 9.5. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

201 - Created

FeatureGate schema

202 - Accepted

FeatureGate schema

401 - Unauthorized

Empty

9.2.2. /apis/config.openshift.io/v1/featuregates/{name}

Table 9.6. Global path parameters
ParameterTypeDescription

name

string

name of the FeatureGate

HTTP method
DELETE
Description
delete a FeatureGate
Table 9.7. Query parameters
ParameterTypeDescription

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 9.8. HTTP responses
HTTP codeReponse body

200 - OK

Status schema

202 - Accepted

Status schema

401 - Unauthorized

Empty

HTTP method
GET
Description
read the specified FeatureGate
Table 9.9. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

401 - Unauthorized

Empty

HTTP method
PATCH
Description
partially update the specified FeatureGate
Table 9.10. Query parameters
ParameterTypeDescription

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 9.11. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

401 - Unauthorized

Empty

HTTP method
PUT
Description
replace the specified FeatureGate
Table 9.12. Query parameters
ParameterTypeDescription

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 9.13. Body parameters
ParameterTypeDescription

body

FeatureGate schema

 
Table 9.14. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

201 - Created

FeatureGate schema

401 - Unauthorized

Empty

9.2.3. /apis/config.openshift.io/v1/featuregates/{name}/status

Table 9.15. Global path parameters
ParameterTypeDescription

name

string

name of the FeatureGate

HTTP method
GET
Description
read status of the specified FeatureGate
Table 9.16. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

401 - Unauthorized

Empty

HTTP method
PATCH
Description
partially update status of the specified FeatureGate
Table 9.17. Query parameters
ParameterTypeDescription

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 9.18. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

401 - Unauthorized

Empty

HTTP method
PUT
Description
replace status of the specified FeatureGate
Table 9.19. Query parameters
ParameterTypeDescription

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 9.20. Body parameters
ParameterTypeDescription

body

FeatureGate schema

 
Table 9.21. HTTP responses
HTTP codeReponse body

200 - OK

FeatureGate schema

201 - Created

FeatureGate schema

401 - Unauthorized

Empty

Red Hat logoGithubRedditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.