Operator Installation

IstioControlPlane is a schema for both defining and customizing Istio control plane installations.Running the operator with an empty user defined InstallSpec results in an control plane with default values, using thedefault charts.

The simplest install specialization is to point the user InstallSpec profile to a different values file, forexample an Istio minimal control plane, which will use the values associated with the minimal control plane profile forIstio.

Deeper customization is possible at three levels:

  • New APIs defined in this file

Feature API: this API groups an Istio install by features and allows enabling/disabling the features, selecting basecontrol plane profiles, as well as some additional high level settings that are feature specific. Each feature containsone or more components, which correspond to Istio components (Pods) in the cluster.

k8s API: this API is a pass through to k8s resource settings for Istio k8s resources. It allows customizing Istio k8sresources like Affinity, Resource requests/limits, PodDisruptionBudgetSpec, Selectors etc. in a more consistent andk8s specific way compared to values.yaml. See KubernetesResourcesSpec in this file for details.

  • values.yaml

The entirety of values.yaml settings is accessible through InstallSpec (see CommonComponentSpec/Values).This API will gradually be deprecated and values there will be moved either into CRDs that are used to directlyconfigure components or, in the case of k8s settings, will be replaced by the new API above.

  • k8s resource overlays

Once a manifest is rendered from InstallSpec, a further customization can be applied by specifying k8s resourceoverlays. The concept is similar to kustomize, where JSON patches are applied for object paths. This allowscustomization at the lowest level and eliminates the need to create ad-hoc template parameters, or edit templates.

Here are a few example uses:

  • Default Istio install
  1. spec:
  • Default minimal profile install
  1. spec:
  2. profile: minimal
  • Default install with telemetry disabled
  1. spec:
  2. telemetry:
  3. enabled: false
  • Default install with each feature installed to different namespace and security components in separate namespaces
  1. spec:
  2. traffic_management:
  3. components:
  4. namespace: istio-traffic-management
  5. policy:
  6. components:
  7. namespace: istio-policy
  8. telemetry:
  9. components:
  10. namespace: istio-telemetry
  11. config_management:
  12. components:
  13. namespace: istio-config-management
  14. security:
  15. components:
  16. citadel:
  17. namespace: istio-citadel
  18. cert_manager:
  19. namespace: istio-cert-manager
  20. node_agent:
  21. namespace: istio-node-agent
  • Default install with specialized k8s settings for pilot
  1. spec:
  2. traffic_management:
  3. components:
  4. pilot:
  5. k8s:
  6. resources:
  7. limits:
  8. cpu: 444m
  9. memory: 333Mi
  10. requests:
  11. cpu: 222m
  12. memory: 111Mi
  13. readinessProbe:
  14. failureThreshold: 44
  15. initialDelaySeconds: 11
  16. periodSeconds: 22
  17. successThreshold: 33
  • Default install with values.yaml customizations for proxy
  1. spec:
  2. traffic_management:
  3. components:
  4. proxy:
  5. values:
  6. - global.proxy.enableCoreDump: true
  7. - global.proxy.dnsRefreshRate: 10s
  • Default install with modification to container flag in galley
  1. spec:
  2. configuration_management:
  3. components:
  4. galley:
  5. k8s:
  6. overlays:
  7. - apiVersion: extensions/v1beta1
  8. kind: Deployment
  9. name: istio-galley
  10. patches:
  11. - path: spec.template.spec.containers.[name:galley].command.[--livenessProbeInterval]
  12. value: --livenessProbeInterval=123s

AutoInjectionFeatureSpec

Configuration options for auto injection feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether auto injection feature is installed. Must be set for any sub-component to be installed.No
componentsComponentsNo

AutoInjectionFeatureSpec.Components

FieldTypeDescriptionRequired
namespacestringNamespace that auto injections components are installed into.No
injectorSidecarInjectorComponentSpecNo

CNIComponentSpec

Configuration options for cni component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

CNIFeatureSpec

Configuration options for cni feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether gateway feature is installed. Must be set for any sub-component to be installed.No
componentsComponentsNo

CNIFeatureSpec.Components

FieldTypeDescriptionRequired
namespacestringNamespace that cni components are installed into.No
cniCNIComponentSpecNo

CertManagerComponentSpec

Configuration options for certificate manager component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

CitadelComponentSpec

Configuration options for Citadel component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

ConfigManagementFeatureSpec

Configuration options for configuration management feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether config management feature is installed. Must be set for any sub-component to be installed.No
componentsComponentsNo

ConfigManagementFeatureSpec.Components

FieldTypeDescriptionRequired
namespacestringNamespace that security components are installed into.No
galleyGalleyComponentSpecNo

DeploymentStrategy

Mirrors k8s.io.api.apps.v1.DeploymentStrategy for unmarshaling.

FieldTypeDescriptionRequired
typestringNo
rollingUpdateRollingUpdateDeploymentNo

EgressGatewayComponentSpec

Configuration options for egress gateways.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

ExecAction

Mirrors k8s.io.api.core.v1.ExecAction for unmarshaling

FieldTypeDescriptionRequired
commandstring[]No

GalleyComponentSpec

Configuration options for galley component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

GatewayFeatureSpec

Configuration options for gateway feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether gateway feature is installed. Must be set for any sub-component to be installed.No
componentsComponentsNo

GatewayFeatureSpec.Components

FieldTypeDescriptionRequired
namespacestringNamespace that auto injections components are installed into.No
ingressGatewayIngressGatewayComponentSpecIngress/egress gateway configuration.No
egressGatewayEgressGatewayComponentSpecNo

HTTPGetAction

Mirrors k8s.io.api.core.v1.HTTPGetAction for unmarshaling

FieldTypeDescriptionRequired
pathstringNo
portTypeIntOrStringForPBNo
hoststringNo
schemestringNo
httpHeadersHTTPHeader[]No

HTTPHeader

Mirrors k8s.io.api.core.v1.HTTPHeader for unmarshaling

FieldTypeDescriptionRequired
namestringNo
valuestringNo

IngressGatewayComponentSpec

Configuration options for ingress gateways.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

InstallStatus

Observed state of IstioControlPlane.

FieldTypeDescriptionRequired
statusmap<string, VersionStatus>No

InstallStatus.Status

NameDescription
NONE
UPDATING
HEALTHY
ERROR
RECONCILING

InstallStatus.VersionStatus

FieldTypeDescriptionRequired
versionstringNo
statusStatusNo
statusStringstringNo
errorstringNo

IstioControlPlane

IstioControlPlane is a CustomResourceDefinition (CRD) describing an Istio control plane.

FieldTypeDescriptionRequired
specIstioControlPlaneSpecSpec defines the desired state of IstioControlPlane.No
statusInstallStatusStatus reports the status of the Istio control plane.No
kindstringNo
apiVersionstringNo
placeholderstringGOFIELD:v11.ObjectMeta json:"metadata,omitempty" protobuf:"bytes,7,opt,name=metadata"GOFIELD:v11.TypeMeta json:",inline"No

IstioControlPlaneSpec

IstioControlPlaneSpec defines the desired state of IstioControlPlane.The spec is a used to define a customization of the default profile values that are supplied with each Istio release.It is grouped at the top level by feature, where behavior of Istio functional areas is specified.Each feature contains components, where k8s resource level defaults can be overridden.Because the spec is a customization API, specifying an empty InstallSpec results in a default Istio control plane.

FieldTypeDescriptionRequired
defaultNamespacestringDefault namespace if feature or component namespaces are not set.No
trafficManagementTrafficManagementFeatureSpecSelection and configuration of core Istio features.No
policyPolicyFeatureSpecNo
telemetryTelemetryFeatureSpecNo
securitySecurityFeatureSpecNo
configManagementConfigManagementFeatureSpecNo
autoInjectionAutoInjectionFeatureSpecNo
gatewaysGatewayFeatureSpecNo
cniCNIFeatureSpecNo
valuesTypeMapStringInterfaceOverrides for default global values.yaml.No
unvalidatedValuesTypeMapStringInterfaceUnvalidated overrides for default global values.yaml.No
profilestringPath or name for the profile e.g.- minimal (looks in profiles dir for a file called minimal.yaml)- /tmp/istio/install/values/custom/custom-install.yaml (local file path)default profile is used if this field is unset.No
installPackagePathstringPath for the install package. e.g.- /tmp/istio-installer/nightly (local file path)No
hubstringRoot for docker image paths e.g. docker.io/istio-release.Releases are published to docker hub under ‘istio’ project.Daily builds from prow are on gcr.io, and nightly builds from circle on docker.io/istionightlyNo
tagstringVersion tag for docker images e.g. 1.0.6No

KubernetesResourcesSpec

KubernetesResourcesConfig is a common set of k8s resource configs for components.

FieldTypeDescriptionRequired
affinityAffinityk8s affinity.https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinityNo
envEnvVar[]Deployment environment variables.https://kubernetes.io/docs/tasks/inject-data-application/define-environment-variable-container/No
hpaSpecHorizontalPodAutoscalerSpeck8s HorizontalPodAutoscaler settings.https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/No
imagePullPolicystringk8s imagePullPolicy.https://kubernetes.io/docs/concepts/containers/images/No
nodeSelectormap<string, string>k8s nodeSelector.https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselectorNo
podDisruptionBudgetPodDisruptionBudgetSpeck8s PodDisruptionBudget settings.https://kubernetes.io/docs/concepts/workloads/pods/disruptions/#how-disruption-budgets-workNo
podAnnotationsmap<string, string>k8s pod annotations.https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/No
priorityClassNamestringk8s priority_class_name. Default for all resources unless overridden.https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclassNo
readinessProbeReadinessProbek8s readinessProbe settings.https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/k8s.io.api.core.v1.Probe readiness_probe = 9;No
replicaCountuint32k8s Deployment replicas setting.https://kubernetes.io/docs/concepts/workloads/controllers/deployment/No
resourcesResourcesk8s resources settings.https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/#resource-requests-and-limits-of-pod-and-containerNo
serviceServiceSpeck8s Service settings.https://kubernetes.io/docs/concepts/services-networking/service/No
strategyDeploymentStrategyk8s deployment strategy.https://kubernetes.io/docs/concepts/workloads/controllers/deployment/No
tolerationsToleration[]k8s tolerationhttps://kubernetes.io/docs/concepts/configuration/taint-and-toleration/No
overlaysk8sObjectOverlay[]Overlays for k8s resources in rendered manifests.No

NodeAgentComponentSpec

Configuration options for node agent component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

ObjectMeta

FieldTypeDescriptionRequired
namestringFrom k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMetaNo
namespacestringNo

PilotComponentSpec

Configuration options for the pilot component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

PodDisruptionBudgetSpec

Mirrors k8s.io.api.policy.v1beta1.PodDisruptionBudget for unmarshaling.

FieldTypeDescriptionRequired
minAvailableuint32No
selectorLabelSelectorNo
maxUnavailableuint32No

PolicyComponentSpec

Configuration options for the policy enforcement component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

PolicyFeatureSpec

Configuration options for the policy feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether policy is installed.Must be enabled to enable any sub-component.No
componentsComponentsNo

PolicyFeatureSpec.Components

Component specific config.

FieldTypeDescriptionRequired
namespacestringNamespace that all policy components are installed into.No
policyPolicyComponentSpecNo

ProxyComponentSpec

Configuration options for the proxy.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

ReadinessProbe

Mirrors k8s.io.api.core.v1.Probe for unmarshaling

FieldTypeDescriptionRequired
execExecActionNo
httpGetHTTPGetActionNo
tcpSocketTCPSocketActionNo
initialDelaySecondsint32No
timeoutSecondsint32No
periodSecondsint32No
successThresholdint32No
failureThresholdint32No

Resources

Mirrors k8s.io.api.core.v1.ResourceRequirements for unmarshaling.

FieldTypeDescriptionRequired
limitsmap<string, string>No
requestsmap<string, string>No

RollingUpdateDeployment

Mirrors k8s.io.api.apps.v1.RollingUpdateDeployment for unmarshaling.

FieldTypeDescriptionRequired
maxUnavailableTypeIntOrStringForPBNo
maxSurgeTypeIntOrStringForPBNo

SecurityFeatureSpec

Configuration options for security feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether security feature is installed. Must be set for any sub-component to be installed.No
componentsComponentsNo

SecurityFeatureSpec.Components

FieldTypeDescriptionRequired
namespacestringNamespace that security components are installed into.No
citadelCitadelComponentSpecNo
certManagerCertManagerComponentSpecNo
nodeAgentNodeAgentComponentSpecNo

SidecarInjectorComponentSpec

Configuration options for the sidecar injector component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

TCPSocketAction

Mirrors k8s.io.api.core.v1.TCPSocketAction for unmarshaling

FieldTypeDescriptionRequired
portTypeIntOrStringForPBNo
hoststringNo

TelemetryComponentSpec

Configuration options for the telemetry component.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBNo
namespacestringNo
k8sKubernetesResourcesSpecNo

TelemetryFeatureSpec

Configuration options for the telemetry feature.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether telemetry is installed.Must be enabled to enable any sub-component.No
componentsComponentsNo

TelemetryFeatureSpec.Components

Component specific config.

FieldTypeDescriptionRequired
namespacestringNamespace that all telemetry components are installed into.No
telemetryTelemetryComponentSpecNo

TrafficManagementFeatureSpec

Configuration options for traffic management.

FieldTypeDescriptionRequired
enabledTypeBoolValueForPBSelects whether traffic management is installed.Must be enabled to enable any sub-component.No
componentsComponentsNo

TrafficManagementFeatureSpec.Components

Component specific config.

FieldTypeDescriptionRequired
namespacestringNamespace that all traffic management components are installed into.No
pilotPilotComponentSpecNo
proxyProxyComponentSpecNo

TypeBoolValueForPB

GOTYPE: *BoolValueForPB

TypeIntOrStringForPB

GOTYPE: *IntOrStringForPB

TypeInterface

GOTYPE: interface{}

TypeMapStringInterface

GOTYPE: map[string]interface{}

k8s.io.api.autoscaling.v2beta1.HorizontalPodAutoscalerSpec

HorizontalPodAutoscalerSpec describes the desired functionality of the HorizontalPodAutoscaler.

FieldTypeDescriptionRequired
scaleTargetRefCrossVersionObjectReferencescaleTargetRef points to the target resource to scale, and is used to the pods for which metricsshould be collected, as well as to actually change the replica count.No
minReplicasint32minReplicas is the lower limit for the number of replicas to which the autoscalercan scale down. It defaults to 1 pod. minReplicas is allowed to be 0 if thealpha feature gate HPAScaleToZero is enabled and at least one Object or Externalmetric is configured. Scaling is active as long as at least one metric value isavailable.+optionalNo
maxReplicasint32maxReplicas is the upper limit for the number of replicas to which the autoscaler can scale up.It cannot be less that minReplicas.No
metricsMetricSpec[]metrics contains the specifications for which to use to calculate thedesired replica count (the maximum replica count across all metrics willbe used). The desired replica count is calculated multiplying theratio between the target value and the current value by the currentnumber of pods. Ergo, metrics used must decrease as the pod count isincreased, and vice-versa. See the individual metric source types formore information about how each type of metric must respond.+optionalNo

k8s.io.api.core.v1.Affinity

Affinity is a group of affinity scheduling rules.

FieldTypeDescriptionRequired
nodeAffinityNodeAffinityDescribes node affinity scheduling rules for the pod.+optionalNo
podAffinityPodAffinityDescribes pod affinity scheduling rules (e.g. co-locate this pod in the same node, zone, etc. as some other pod(s)).+optionalNo
podAntiAffinityPodAntiAffinityDescribes pod anti-affinity scheduling rules (e.g. avoid putting this pod in the same node, zone, etc. as some other pod(s)).+optionalNo

k8s.io.api.core.v1.EnvVar

EnvVar represents an environment variable present in a Container.

FieldTypeDescriptionRequired
namestringName of the environment variable. Must be a C_IDENTIFIER.No
valuestringVariable references $(VAR_NAME) are expandedusing the previous defined environment variables in the container andany service environment variables. If a variable cannot be resolved,the reference in the input string will be unchanged. The $(VAR_NAME)syntax can be escaped with a double $$, ie: $$(VAR_NAME). Escapedreferences will never be expanded, regardless of whether the variableexists or not.Defaults to “”.+optionalNo
valueFromEnvVarSourceSource for the environment variable’s value. Cannot be used if value is not empty.+optionalNo

k8s.io.api.core.v1.ServiceSpec

ServiceSpec describes the attributes that a user creates on a service.

FieldTypeDescriptionRequired
portsServicePort[]The list of ports that are exposed by this service.More info: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies+patchMergeKey=port+patchStrategy=merge+listType=map+listMapKey=port+listMapKey=protocolNo
selectormap<string, string>Route service traffic to pods with label keys and values matching thisselector. If empty or not present, the service is assumed to have anexternal process managing its endpoints, which Kubernetes will notmodify. Only applies to types ClusterIP, NodePort, and LoadBalancer.Ignored if type is ExternalName.More info: https://kubernetes.io/docs/concepts/services-networking/service/+optionalNo
clusterIPstringclusterIP is the IP address of the service and is usually assignedrandomly by the master. If an address is specified manually and is not inuse by others, it will be allocated to the service; otherwise, creationof the service will fail. This field can not be changed through updates.Valid values are “None”, empty string (“”), or a valid IP address. “None”can be specified for headless services when proxying is not required.Only applies to types ClusterIP, NodePort, and LoadBalancer. Ignored iftype is ExternalName.More info: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies+optionalNo
typestringtype determines how the Service is exposed. Defaults to ClusterIP. Validoptions are ExternalName, ClusterIP, NodePort, and LoadBalancer.“ExternalName” maps to the specified externalName.“ClusterIP” allocates a cluster-internal IP address for load-balancing toendpoints. Endpoints are determined by the selector or if that is notspecified, by manual construction of an Endpoints object. If clusterIP is“None”, no virtual IP is allocated and the endpoints are published as aset of endpoints rather than a stable IP.“NodePort” builds on ClusterIP and allocates a port on every node whichroutes to the clusterIP.“LoadBalancer” builds on NodePort and creates anexternal load-balancer (if supported in the current cloud) which routesto the clusterIP.More info: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types+optionalNo
externalIPsstring[]externalIPs is a list of IP addresses for which nodes in the clusterwill also accept traffic for this service. These IPs are not managed byKubernetes. The user is responsible for ensuring that traffic arrivesat a node with this IP. A common example is external load-balancersthat are not part of the Kubernetes system.+optionalNo
sessionAffinitystringSupports “ClientIP” and “None”. Used to maintain session affinity.Enable client IP based session affinity.Must be ClientIP or None.Defaults to None.More info: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies+optionalNo
loadBalancerIPstringOnly applies to Service Type: LoadBalancerLoadBalancer will get created with the IP specified in this field.This feature depends on whether the underlying cloud-provider supports specifyingthe loadBalancerIP when a load balancer is created.This field will be ignored if the cloud-provider does not support the feature.+optionalNo
loadBalancerSourceRangesstring[]If specified and supported by the platform, this will restrict traffic through the cloud-providerload-balancer will be restricted to the specified client IPs. This field will be ignored if thecloud-provider does not support the feature.”More info: https://kubernetes.io/docs/tasks/access-application-cluster/configure-cloud-provider-firewall/+optionalNo
externalNamestringexternalName is the external reference that kubedns or equivalent willreturn as a CNAME record for this service. No proxying will be involved.Must be a valid RFC-1123 hostname (https://tools.ietf.org/html/rfc1123)and requires Type to be ExternalName.+optionalNo
externalTrafficPolicystringexternalTrafficPolicy denotes if this Service desires to route externaltraffic to node-local or cluster-wide endpoints. “Local” preserves theclient source IP and avoids a second hop for LoadBalancer and Nodeporttype services, but risks potentially imbalanced traffic spreading.“Cluster” obscures the client source IP and may cause a second hop toanother node, but should have good overall load-spreading.+optionalNo
healthCheckNodePortint32healthCheckNodePort specifies the healthcheck nodePort for the service.If not specified, HealthCheckNodePort is created by the service apibackend with the allocated nodePort. Will use user-specified nodePort valueif specified by the client. Only effects when Type is set to LoadBalancerand ExternalTrafficPolicy is set to Local.+optionalNo
publishNotReadyAddressesboolpublishNotReadyAddresses, when set to true, indicates that DNS implementationsmust publish the notReadyAddresses of subsets for the Endpoints associated withthe Service. The default value is false.The primary use case for setting this field is to use a StatefulSet’s Headless Serviceto propagate SRV records for its Pods without respect to their readiness for purposeof peer discovery.+optionalNo
sessionAffinityConfigSessionAffinityConfigsessionAffinityConfig contains the configurations of session affinity.+optionalNo
ipFamilystringipFamily specifies whether this Service has a preference for a particular IP family (e.g. IPv4 vs.IPv6). If a specific IP family is requested, the clusterIP field will be allocated from that family, if it isavailable in the cluster. If no IP family is requested, the cluster’s primary IP family will be used.Other IP fields (loadBalancerIP, loadBalancerSourceRanges, externalIPs) and controllers whichallocate external load-balancers should use the same IP family. Endpoints for this Service will be ofthis family. This field is immutable after creation. Assigning a ServiceIPFamily not available in thecluster (e.g. IPv6 in IPv4 only cluster) is an error condition and will fail during clusterIP assignment.+optionalNo

k8s.io.api.core.v1.Toleration

The pod this Toleration is attached to tolerates any taint that matchesthe triple <key,value,effect> using the matching operator <operator>.

FieldTypeDescriptionRequired
keystringKey is the taint key that the toleration applies to. Empty means match all taint keys.If the key is empty, operator must be Exists; this combination means to match all values and all keys.+optionalNo
operatorstringOperator represents a key’s relationship to the value.Valid operators are Exists and Equal. Defaults to Equal.Exists is equivalent to wildcard for value, so that a pod cantolerate all taints of a particular category.+optionalNo
valuestringValue is the taint value the toleration matches to.If the operator is Exists, the value should be empty, otherwise just a regular string.+optionalNo
effectstringEffect indicates the taint effect to match. Empty means match all taint effects.When specified, allowed values are NoSchedule, PreferNoSchedule and NoExecute.+optionalNo
tolerationSecondsint64TolerationSeconds represents the period of time the toleration (which must beof effect NoExecute, otherwise this field is ignored) tolerates the taint. By default,it is not set, which means tolerate the taint forever (do not evict). Zero andnegative values will be treated as 0 (evict immediately) by the system.+optionalNo

k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector

A label selector is a label query over a set of resources. The result of matchLabels andmatchExpressions are ANDed. An empty label selector matches all objects. A nulllabel selector matches no objects.

FieldTypeDescriptionRequired
matchLabelsmap<string, string>matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabelsmap is equivalent to an element of matchExpressions, whose key field is “key”, theoperator is “In”, and the values array contains only “value”. The requirements are ANDed.+optionalNo
matchExpressionsLabelSelectorRequirement[]matchExpressions is a list of label selector requirements. The requirements are ANDed.+optionalNo

k8sObjectOverlay

Patch for an existing k8s resource.

FieldTypeDescriptionRequired
apiVersionstringResource API version.No
kindstringResource kind.No
namestringName of resource.Namespace is always the component namespace.No
patchesPathValue[]List of patches to apply to resource.No

k8sObjectOverlay.PathValue

FieldTypeDescriptionRequired
pathstringPath of the form a.b:c.e.:fWhere b:c is a list element selector of the form key:value and :f is a list selector of the form :value.All path intermediate nodes must exist.No
valueTypeInterfaceValue to add, delete or replace.For add, the path should be a new leaf.For delete, value should be unset.For replace, path should reference an existing node.All values are strings but are converted into appropriate type based on schema.No