Kueue Configuration API

QPS controls the number of queries per second allowed for K8S api server connection.

Burst allows extra queries to accumulate when a client is exceeding its rate.

MaxCount indicates the maximal number of pending workloads exposed in the cluster queue status. When the value is set to 0, then ClusterQueue visibility updates are disabled. The maximal value is 4000. Defaults to 10.

Namespace is the namespace in which kueue is deployed. It is used as part of DNSName of the webhook Service. If not set, the value is set from the file /var/run/secrets/kubernetes.io/serviceaccount/namespace If the file doesn't exist, default value is kueue-system.

ControllerManager returns the configurations for controllers

ManageJobsWithoutQueueName controls whether or not Kueue reconciles batch/v1.Jobs that don't set the annotation kueue.x-k8s.io/queue-name. If set to true, then those jobs will be suspended and never started unless they are assigned a queue and eventually admitted. This also applies to jobs created before starting the kueue controller. Defaults to false; therefore, those jobs are not managed and if they are created unsuspended, they will start immediately.

InternalCertManagement is configuration for internalCertManagement

WaitForPodsReady is configuration to provide simple all-or-nothing scheduling semantics for jobs to ensure they get resources assigned. This is achieved by blocking the start of new jobs until the previously started job has all pods running (ready).

ClientConnection provides additional configuration options for Kubernetes API server client.

Integrations provide configuration options for AI/ML/Batch frameworks integrations (including K8S job).

QueueVisibility is configuration to expose the information about the top pending workloads.

MultiKueue controls the behaviour of the MultiKueue AdmissionCheck Controller.

GroupKindConcurrency is a map from a Kind to the number of concurrent reconciliation allowed for that controller.

When a controller is registered within this manager using the builder utilities, users have to specify the type the controller reconciles in the For(...) call. If the object's kind passed matches one of the keys in this map, the concurrency for that controller is set to the number specified.

The key is expected to be consistent in form with GroupKind.String(), e.g. ReplicaSet in apps group (regardless of version) would be ReplicaSet.apps.

CacheSyncTimeout refers to the time limit set to wait for syncing caches. Defaults to 2 minutes if not set.

HealthProbeBindAddress is the TCP address that the controller should bind to for serving health probes It can be set to "0" or "" to disable serving the health probe.

ReadinessEndpointName, defaults to "readyz"

LivenessEndpointName, defaults to "healthz"

Webhook contains the controllers webhook configuration

LeaderElection is the LeaderElection config to be used when configuring the manager.Manager leader election

Metrics contains the controller metrics configuration

Health contains the controller health configuration

PprofBindAddress is the TCP address that the controller should bind to for serving pprof. It can be set to "" or "0" to disable the pprof serving. Since pprof may contain sensitive information, make sure to protect it before exposing it to public.

Controller contains global configuration options for controllers registered within this manager.

BindAddress is the TCP address that the controller should bind to for serving prometheus metrics. It can be set to "0" to disable the metrics serving.

EnableClusterQueueResources, if true the cluster queue resource usage and quotas metrics will be reported.

Port is the port that the webhook server serves at. It is used to set webhook.Server.Port.

Host is the hostname that the webhook server binds to. It is used to set webhook.Server.Host.

CertDir is the directory that contains the server key and certificate. if not set, webhook server would look up the server key and certificate in {TempDir}/k8s-webhook-server/serving-certs. The server key and certificate must be named tls.key and tls.crt, respectively.

List of framework names to be enabled. Possible options:

• "batch/job"
• "kubeflow.org/mpijob"
• "ray.io/rayjob"
• "ray.io/raycluster"
• "jobset.x-k8s.io/jobset"
• "kubeflow.org/mxjob"
• "kubeflow.org/paddlejob"
• "kubeflow.org/pytorchjob"
• "kubeflow.org/tfjob"
• "kubeflow.org/xgboostjob"
• "pod"

PodOptions defines kueue controller behaviour for pod objects

Enable controls whether to enable internal cert management or not. Defaults to true. If you want to use a third-party management, e.g. cert-manager, set it to false. See the user guide for more information.

WebhookServiceName is the name of the Service used as part of the DNSName. Defaults to kueue-webhook-service.

WebhookSecretName is the name of the Secret used to store CA and server certs. Defaults to kueue-webhook-server-cert.

GCInterval defines the time interval between two consecutive garbage collection runs. Defaults to 1min. If 0, the garbage collection is disabled.

Origin defines a label value used to track the creator of workloads in the worker clusters. This is used by multikueue in components like its garbage collector to identify remote objects that ware created by this multikueue manager cluster and delete them if their local counterpart no longer exists.

NamespaceSelector can be used to omit some namespaces from pod reconciliation

PodSelector can be used to choose what pods to reconcile

ClusterQueues is configuration to expose the information about the top pending workloads in the cluster queue.

UpdateIntervalSeconds specifies the time interval for updates to the structure of the top pending workloads in the queues. The minimum value is 1. Defaults to 5.

Timestamp defines the timestamp used for re-queuing a Workload that was evicted due to Pod readiness. The possible values are:

• Eviction (default) indicates from Workload Evicted condition with PodsReadyTimeout reason.
• Creation indicates from Workload .metadata.creationTimestamp.

BackoffLimitCount defines the maximum number of re-queuing retries. Once the number is reached, the workload is deactivated (.spec.activate=false). When it is null, the workloads will repeatedly and endless re-queueing.

Every backoff duration is about "1.41284738^(n-1)+Rand" where the "n" represents the "workloadStatus.requeueState.count", and the "Rand" represents the random jitter. During this time, the workload is taken as an inadmissible and other workloads will have a chance to be admitted. For example, when the "waitForPodsReady.timeout" is the default, the workload deactivation time is as follows: {backoffLimitCount, workloadDeactivationSeconds} ~= {1, 601}, {2, 902}, ...,{5, 1811}, ...,{10, 3374}, ...,{20, 8730}, ...,{30, 86400(=24 hours)}, ...

Defaults to null.

Enable when true, indicates that each admitted workload blocks the admission of all other workloads from all queues until it is in the PodsReady condition. If false, all workloads start as soon as they are admitted and do not block admission of other workloads. The PodsReady condition is only added if this setting is enabled. It defaults to false.

Timeout defines the time for an admitted workload to reach the PodsReady=true condition. When the timeout is reached, the workload admission is cancelled and requeued in the same cluster queue. Defaults to 5min.

BlockAdmission when true, cluster queue will block admissions for all subsequent jobs until the jobs reach the PodsReady=true condition. It defaults to false if Enable is false and defaults to true otherwise.

RequeuingStrategy defines the strategy for requeuing a Workload.