ResourceInterpreterCustomization v1alpha1
apiVersion: config.karmada.io/v1alpha1
import "github.com/karmada-io/karmada/pkg/apis/config/v1alpha1"
ResourceInterpreterCustomization
ResourceInterpreterCustomization describes the configuration of a specific resource for Karmada to get the structure. It has higher precedence than the default interpreter and the interpreter webhook.
apiVersion: config.karmada.io/v1alpha1
kind: ResourceInterpreterCustomization
metadata (ObjectMeta)
spec (ResourceInterpreterCustomizationSpec), required
Spec describes the configuration in detail.
ResourceInterpreterCustomizationSpec
ResourceInterpreterCustomizationSpec describes the configuration in detail.
customizations (CustomizationRules), required
Customizations describe the interpretation rules.
CustomizationRules describes the interpretation rules.
customizations.dependencyInterpretation (DependencyInterpretation)
DependencyInterpretation describes the rules for Karmada to analyze the dependent resources. Karmada provides built-in rules for several standard Kubernetes types, see: https://karmada.io/docs/userguide/globalview/customizing-resource-interpreter/#interpretdependency If DependencyInterpretation is set, the built-in rules will be ignored.
DependencyInterpretation holds the rules for interpreting the dependent resources of a specific resources.
customizations.dependencyInterpretation.luaScript (string), required
LuaScript holds the Lua script that is used to interpret the dependencies of a specific resource. The script should implement a function as follows:
luaScript: >
function GetDependencies(desiredObj)
dependencies = []
serviceAccountName = desiredObj.spec.template.spec.serviceAccountName
if serviceAccountName ~= nil and serviceAccountName ~= "default" then
dependency = []
dependency.apiVersion = "v1"
dependency.kind = "ServiceAccount"
dependency.name = serviceAccountName
dependency.namespace = desiredObj.metadata.namespace
dependencies[1] = dependency
end
return dependencies
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- desiredObj: the object represents the configuration to be applied to the member cluster.
The returned value should be expressed by a slice of DependentObjectReference.
customizations.healthInterpretation (HealthInterpretation)
HealthInterpretation describes the health assessment rules by which Karmada can assess the health state of the resource type.
HealthInterpretation holds the rules for interpreting the health state of a specific resource.
customizations.healthInterpretation.luaScript (string), required
LuaScript holds the Lua script that is used to assess the health state of a specific resource. The script should implement a function as follows:
luaScript: >
function InterpretHealth(observedObj)
if observedObj.status.readyReplicas == observedObj.spec.replicas then
return true
end
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- observedObj: the object represents the configuration that is observed from a specific member cluster.
The returned boolean value indicates the health status.
customizations.replicaResource (ReplicaResourceRequirement)
ReplicaResource describes the rules for Karmada to discover the resource's replica as well as resource requirements. It would be useful for those CRD resources that declare workload types like Deployment. It is usually not needed for Kubernetes native resources(Deployment, Job) as Karmada knows how to discover info from them. But if it is set, the built-in discovery rules will be ignored.
ReplicaResourceRequirement holds the scripts for getting the desired replicas as well as the resource requirement of each replica.
customizations.replicaResource.luaScript (string), required
LuaScript holds the Lua script that is used to discover the resource's replica as well as resource requirements
The script should implement a function as follows:
luaScript: >
function GetReplicas(desiredObj)
replica = desiredObj.spec.replicas
requirement = []
requirement.nodeClaim = []
requirement.nodeClaim.nodeSelector = desiredObj.spec.template.spec.nodeSelector
requirement.nodeClaim.tolerations = desiredObj.spec.template.spec.tolerations
requirement.resourceRequest = desiredObj.spec.template.spec.containers[1].resources.limits
return replica, requirement
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- desiredObj: the object represents the configuration to be applied to the member cluster.
The function expects two return values:
- replica: the declared replica number
- requirement: the resource required by each replica expressed with a ResourceBindingSpec.ReplicaRequirements. The returned values will be set into a ResourceBinding or ClusterResourceBinding.
customizations.replicaRevision (ReplicaRevision)
ReplicaRevision describes the rules for Karmada to revise the resource's replica. It would be useful for those CRD resources that declare workload types like Deployment. It is usually not needed for Kubernetes native resources(Deployment, Job) as Karmada knows how to revise replicas for them. But if it is set, the built-in revision rules will be ignored.
ReplicaRevision holds the scripts for revising the desired replicas.
customizations.replicaRevision.luaScript (string), required
LuaScript holds the Lua script that is used to revise replicas in the desired specification. The script should implement a function as follows:
luaScript: >
function ReviseReplica(desiredObj, desiredReplica)
desiredObj.spec.replicas = desiredReplica
return desiredObj
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- desiredObj: the object represents the configuration to be applied to the member cluster.
- desiredReplica: the replica number should be applied with.
The returned object should be a revised configuration which will be applied to member cluster eventually.
customizations.retention (LocalValueRetention)
Retention describes the desired behavior that Karmada should react on the changes made by member cluster components. This avoids system running into a meaningless loop that Karmada resource controller and the member cluster component continually applying opposite values of a field. For example, the "replicas" of Deployment might be changed by the HPA controller on member cluster. In this case, Karmada should retain the "replicas" and not try to change it.
LocalValueRetention holds the scripts for retention. Now only supports Lua.
customizations.retention.luaScript (string), required
LuaScript holds the Lua script that is used to retain runtime values to the desired specification.
The script should implement a function as follows:
luaScript: >
function Retain(desiredObj, observedObj)
desiredObj.spec.fieldFoo = observedObj.spec.fieldFoo
return desiredObj
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- desiredObj: the object represents the configuration to be applied to the member cluster.
- observedObj: the object represents the configuration that is observed from a specific member cluster.
The returned object should be a retained configuration which will be applied to member cluster eventually.
customizations.statusAggregation (StatusAggregation)
StatusAggregation describes the rules for Karmada to aggregate status collected from member clusters to resource template. Karmada provides built-in rules for several standard Kubernetes types, see: https://karmada.io/docs/userguide/globalview/customizing-resource-interpreter/#aggregatestatus If StatusAggregation is set, the built-in rules will be ignored.
StatusAggregation holds the scripts for aggregating several decentralized statuses.
customizations.statusAggregation.luaScript (string), required
LuaScript holds the Lua script that is used to aggregate decentralized statuses to the desired specification. The script should implement a function as follows:
luaScript: >
function AggregateStatus(desiredObj, statusItems)
for i = 1, #statusItems do
desiredObj.status.readyReplicas = desiredObj.status.readyReplicas + items[i].readyReplicas
end
return desiredObj
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- desiredObj: the object represents a resource template.
- statusItems: the slice of status expressed with AggregatedStatusItem.
The returned object should be a whole object with status aggregated.
customizations.statusReflection (StatusReflection)
StatusReflection describes the rules for Karmada to pick the resource's status. Karmada provides built-in rules for several standard Kubernetes types, see: https://karmada.io/docs/userguide/globalview/customizing-resource-interpreter/#interpretstatus If StatusReflection is set, the built-in rules will be ignored.
StatusReflection holds the scripts for getting the status.
customizations.statusReflection.luaScript (string), required
LuaScript holds the Lua script that is used to get the status from the observed specification. The script should implement a function as follows:
luaScript: >
function ReflectStatus(observedObj)
status = []
status.readyReplicas = observedObj.status.observedObj
return status
endThe content of the LuaScript needs to be a whole function including both declaration and implementation.
The parameters will be supplied by the system:
- observedObj: the object represents the configuration that is observed from a specific member cluster.
The returned status could be the whole status or part of it and will be set into both Work and ResourceBinding(ClusterResourceBinding).
target (CustomizationTarget), required
CustomizationTarget represents the resource type that the customization applies to.
CustomizationTarget represents the resource type that the customization applies to.
target.apiVersion (string), required
APIVersion represents the API version of the target resource.
target.kind (string), required
Kind represents the Kind of target resources.
ResourceInterpreterCustomizationList
ResourceInterpreterCustomizationList contains a list of ResourceInterpreterCustomization.
apiVersion: config.karmada.io/v1alpha1
kind: ResourceInterpreterCustomizationList
metadata (ListMeta)
items ([][ResourceInterpreterCustomization](../config-resources/resource-interpreter-customization-v1alpha1#resourceinterpretercustomization)), required
Operations
get read the specified ResourceInterpreterCustomization
HTTP Request
GET /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
get read status of the specified ResourceInterpreterCustomization
HTTP Request
GET /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}/status
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
list list or watch objects of kind ResourceInterpreterCustomization
HTTP Request
GET /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations
Parameters
allowWatchBookmarks (in query): boolean
continue (in query): string
fieldSelector (in query): string
labelSelector (in query): string
limit (in query): integer
pretty (in query): string
resourceVersion (in query): string
resourceVersionMatch (in query): string
sendInitialEvents (in query): boolean
timeoutSeconds (in query): integer
watch (in query): boolean
Response
200 (ResourceInterpreterCustomizationList): OK
create create a ResourceInterpreterCustomization
HTTP Request
POST /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations
Parameters
- body: ResourceInterpreterCustomization, required
dryRun (in query): string
fieldManager (in query): string
fieldValidation (in query): string
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
201 (ResourceInterpreterCustomization): Created
202 (ResourceInterpreterCustomization): Accepted
update replace the specified ResourceInterpreterCustomization
HTTP Request
PUT /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
body: ResourceInterpreterCustomization, required
dryRun (in query): string
fieldManager (in query): string
fieldValidation (in query): string
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
201 (ResourceInterpreterCustomization): Created
update replace status of the specified ResourceInterpreterCustomization
HTTP Request
PUT /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}/status
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
body: ResourceInterpreterCustomization, required
dryRun (in query): string
fieldManager (in query): string
fieldValidation (in query): string
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
201 (ResourceInterpreterCustomization): Created
patch partially update the specified ResourceInterpreterCustomization
HTTP Request
PATCH /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
body: Patch, required
dryRun (in query): string
fieldManager (in query): string
fieldValidation (in query): string
force (in query): boolean
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
201 (ResourceInterpreterCustomization): Created
patch partially update status of the specified ResourceInterpreterCustomization
HTTP Request
PATCH /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}/status
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
body: Patch, required
dryRun (in query): string
fieldManager (in query): string
fieldValidation (in query): string
force (in query): boolean
pretty (in query): string
Response
200 (ResourceInterpreterCustomization): OK
201 (ResourceInterpreterCustomization): Created
delete delete a ResourceInterpreterCustomization
HTTP Request
DELETE /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations/{name}
Parameters
name (in path): string, required
name of the ResourceInterpreterCustomization
body: DeleteOptions
dryRun (in query): string
gracePeriodSeconds (in query): integer
pretty (in query): string
propagationPolicy (in query): string
Response
200 (Status): OK
202 (Status): Accepted
deletecollection delete collection of ResourceInterpreterCustomization
HTTP Request
DELETE /apis/config.karmada.io/v1alpha1/resourceinterpretercustomizations
Parameters
- body: DeleteOptions
continue (in query): string
dryRun (in query): string
fieldSelector (in query): string
gracePeriodSeconds (in query): integer
labelSelector (in query): string
limit (in query): integer
pretty (in query): string
propagationPolicy (in query): string
resourceVersion (in query): string
resourceVersionMatch (in query): string
sendInitialEvents (in query): boolean
timeoutSeconds (in query): integer
Response
200 (Status): OK