/
types_shoot.go
1190 lines (1101 loc) · 68.7 KB
/
types_shoot.go
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// Copyright (c) 2018 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package v1beta1
import (
"time"
autoscalingv1 "k8s.io/api/autoscaling/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/intstr"
)
// +genclient
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
type Shoot struct {
metav1.TypeMeta `json:",inline"`
// Standard object metadata.
// +optional
metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// Specification of the Shoot cluster.
// +optional
Spec ShootSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
// Most recently observed status of the Shoot cluster.
// +optional
Status ShootStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// ShootList is a list of Shoot objects.
type ShootList struct {
metav1.TypeMeta `json:",inline"`
// Standard list object metadata.
// +optional
metav1.ListMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// Items is the list of Shoots.
Items []Shoot `json:"items" protobuf:"bytes,2,rep,name=items"`
}
// ShootTemplate is a template for creating a Shoot object.
type ShootTemplate struct {
// Standard object metadata.
// +optional
metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
// Specification of the desired behavior of the Shoot.
// +optional
Spec ShootSpec `json:"spec,omitempty" protobuf:"bytes,2,opt,name=spec"`
}
// ShootSpec is the specification of a Shoot.
type ShootSpec struct {
// Addons contains information about enabled/disabled addons and their configuration.
// +optional
Addons *Addons `json:"addons,omitempty" protobuf:"bytes,1,opt,name=addons"`
// CloudProfileName is a name of a CloudProfile object.
CloudProfileName string `json:"cloudProfileName" protobuf:"bytes,2,opt,name=cloudProfileName"`
// DNS contains information about the DNS settings of the Shoot.
// +optional
DNS *DNS `json:"dns,omitempty" protobuf:"bytes,3,opt,name=dns"`
// Extensions contain type and provider information for Shoot extensions.
// +optional
Extensions []Extension `json:"extensions,omitempty" protobuf:"bytes,4,rep,name=extensions"`
// Hibernation contains information whether the Shoot is suspended or not.
// +optional
Hibernation *Hibernation `json:"hibernation,omitempty" protobuf:"bytes,5,opt,name=hibernation"`
// Kubernetes contains the version and configuration settings of the control plane components.
Kubernetes Kubernetes `json:"kubernetes" protobuf:"bytes,6,opt,name=kubernetes"`
// Networking contains information about cluster networking such as CNI Plugin type, CIDRs, ...etc.
Networking Networking `json:"networking" protobuf:"bytes,7,opt,name=networking"`
// Maintenance contains information about the time window for maintenance operations and which
// operations should be performed.
// +optional
Maintenance *Maintenance `json:"maintenance,omitempty" protobuf:"bytes,8,opt,name=maintenance"`
// Monitoring contains information about custom monitoring configurations for the shoot.
// +optional
Monitoring *Monitoring `json:"monitoring,omitempty" protobuf:"bytes,9,opt,name=monitoring"`
// Provider contains all provider-specific and provider-relevant information.
Provider Provider `json:"provider" protobuf:"bytes,10,opt,name=provider"`
// Purpose is the purpose class for this cluster.
// +optional
Purpose *ShootPurpose `json:"purpose,omitempty" protobuf:"bytes,11,opt,name=purpose,casttype=ShootPurpose"`
// Region is a name of a region.
Region string `json:"region" protobuf:"bytes,12,opt,name=region"`
// SecretBindingName is the name of the a SecretBinding that has a reference to the provider secret.
// The credentials inside the provider secret will be used to create the shoot in the respective account.
SecretBindingName string `json:"secretBindingName" protobuf:"bytes,13,opt,name=secretBindingName"`
// SeedName is the name of the seed cluster that runs the control plane of the Shoot.
// +optional
SeedName *string `json:"seedName,omitempty" protobuf:"bytes,14,opt,name=seedName"`
// SeedSelector is an optional selector which must match a seed's labels for the shoot to be scheduled on that seed.
// +optional
SeedSelector *SeedSelector `json:"seedSelector,omitempty" protobuf:"bytes,15,opt,name=seedSelector"`
// Resources holds a list of named resource references that can be referred to in extension configs by their names.
// +optional
Resources []NamedResourceReference `json:"resources,omitempty" protobuf:"bytes,16,rep,name=resources"`
// Tolerations contains the tolerations for taints on seed clusters.
// +patchMergeKey=key
// +patchStrategy=merge
// +optional
Tolerations []Toleration `json:"tolerations,omitempty" patchStrategy:"merge" patchMergeKey:"key" protobuf:"bytes,17,rep,name=tolerations"`
}
// ShootStatus holds the most recently observed status of the Shoot cluster.
type ShootStatus struct {
// Conditions represents the latest available observations of a Shoots's current state.
// +patchMergeKey=type
// +patchStrategy=merge
// +optional
Conditions []Condition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,1,rep,name=conditions"`
// Constraints represents conditions of a Shoot's current state that constraint some operations on it.
// +patchMergeKey=type
// +patchStrategy=merge
// +optional
Constraints []Condition `json:"constraints,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,2,rep,name=constraints"`
// Gardener holds information about the Gardener which last acted on the Shoot.
Gardener Gardener `json:"gardener" protobuf:"bytes,3,opt,name=gardener"`
// IsHibernated indicates whether the Shoot is currently hibernated.
IsHibernated bool `json:"hibernated" protobuf:"varint,4,opt,name=hibernated"`
// LastOperation holds information about the last operation on the Shoot.
// +optional
LastOperation *LastOperation `json:"lastOperation,omitempty" protobuf:"bytes,5,opt,name=lastOperation"`
// LastErrors holds information about the last occurred error(s) during an operation.
// +optional
LastErrors []LastError `json:"lastErrors,omitempty" protobuf:"bytes,6,rep,name=lastErrors"`
// ObservedGeneration is the most recent generation observed for this Shoot. It corresponds to the
// Shoot's generation, which is updated on mutation by the API Server.
// +optional
ObservedGeneration int64 `json:"observedGeneration,omitempty" protobuf:"varint,7,opt,name=observedGeneration"`
// RetryCycleStartTime is the start time of the last retry cycle (used to determine how often an operation
// must be retried until we give up).
// +optional
RetryCycleStartTime *metav1.Time `json:"retryCycleStartTime,omitempty" protobuf:"bytes,8,opt,name=retryCycleStartTime"`
// SeedName is the name of the seed cluster that runs the control plane of the Shoot. This value is only written
// after a successful create/reconcile operation. It will be used when control planes are moved between Seeds.
// +optional
SeedName *string `json:"seedName,omitempty" protobuf:"bytes,9,opt,name=seedName"`
// TechnicalID is the name that is used for creating the Seed namespace, the infrastructure resources, and
// basically everything that is related to this particular Shoot.
TechnicalID string `json:"technicalID" protobuf:"bytes,10,opt,name=technicalID"`
// UID is a unique identifier for the Shoot cluster to avoid portability between Kubernetes clusters.
// It is used to compute unique hashes.
UID types.UID `json:"uid" protobuf:"bytes,11,opt,name=uid,casttype=k8s.io/apimachinery/pkg/types.UID"`
// ClusterIdentity is the identity of the Shoot cluster
// +optional
ClusterIdentity *string `json:"clusterIdentity,omitempty" protobuf:"bytes,12,opt,name=clusterIdentity"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Addons relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Addons is a collection of configuration for specific addons which are managed by the Gardener.
type Addons struct {
// KubernetesDashboard holds configuration settings for the kubernetes dashboard addon.
// +optional
KubernetesDashboard *KubernetesDashboard `json:"kubernetesDashboard,omitempty" protobuf:"bytes,1,opt,name=kubernetesDashboard"`
// NginxIngress holds configuration settings for the nginx-ingress addon.
// +optional
NginxIngress *NginxIngress `json:"nginxIngress,omitempty" protobuf:"bytes,2,opt,name=nginxIngress"`
}
// Addon allows enabling or disabling a specific addon and is used to derive from.
type Addon struct {
// Enabled indicates whether the addon is enabled or not.
Enabled bool `json:"enabled" protobuf:"varint,1,opt,name=enabled"`
}
// KubernetesDashboard describes configuration values for the kubernetes-dashboard addon.
type KubernetesDashboard struct {
Addon `json:",inline" protobuf:"bytes,2,opt,name=addon"`
// AuthenticationMode defines the authentication mode for the kubernetes-dashboard.
// +optional
AuthenticationMode *string `json:"authenticationMode,omitempty" protobuf:"bytes,1,opt,name=authenticationMode"`
}
const (
// KubernetesDashboardAuthModeBasic uses basic authentication mode for auth.
KubernetesDashboardAuthModeBasic = "basic"
// KubernetesDashboardAuthModeToken uses token-based mode for auth.
KubernetesDashboardAuthModeToken = "token"
)
// NginxIngress describes configuration values for the nginx-ingress addon.
type NginxIngress struct {
Addon `json:",inline" protobuf:"bytes,1,opt,name=addon"`
// LoadBalancerSourceRanges is list of allowed IP sources for NginxIngress
// +optional
LoadBalancerSourceRanges []string `json:"loadBalancerSourceRanges,omitempty" protobuf:"bytes,2,rep,name=loadBalancerSourceRanges"`
// Config contains custom configuration for the nginx-ingress-controller configuration.
// See https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/configmap.md#configuration-options
// +optional
Config map[string]string `json:"config,omitempty" protobuf:"bytes,3,rep,name=config"`
// ExternalTrafficPolicy controls the `.spec.externalTrafficPolicy` value of the load balancer `Service`
// exposing the nginx-ingress. Defaults to `Cluster`.
// +optional
ExternalTrafficPolicy *corev1.ServiceExternalTrafficPolicyType `json:"externalTrafficPolicy,omitempty" protobuf:"bytes,4,opt,name=externalTrafficPolicy,casttype=k8s.io/api/core/v1.ServiceExternalTrafficPolicyType"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// DNS relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// DNS holds information about the provider, the hosted zone id and the domain.
type DNS struct {
// Domain is the external available domain of the Shoot cluster. This domain will be written into the
// kubeconfig that is handed out to end-users. Once set it is immutable.
// +optional
Domain *string `json:"domain,omitempty" protobuf:"bytes,1,opt,name=domain"`
// Providers is a list of DNS providers that shall be enabled for this shoot cluster. Only relevant if
// not a default domain is used.
// +patchMergeKey=type
// +patchStrategy=merge
// +optional
Providers []DNSProvider `json:"providers,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,2,rep,name=providers"`
}
// DNSProvider contains information about a DNS provider.
type DNSProvider struct {
// Domains contains information about which domains shall be included/excluded for this provider.
// +optional
Domains *DNSIncludeExclude `json:"domains,omitempty" protobuf:"bytes,1,opt,name=domains"`
// Primary indicates that this DNSProvider is used for shoot related domains.
// +optional
Primary *bool `json:"primary,omitempty" protobuf:"varint,2,opt,name=primary"`
// SecretName is a name of a secret containing credentials for the stated domain and the
// provider. When not specified, the Gardener will use the cloud provider credentials referenced
// by the Shoot and try to find respective credentials there (primary provider only). Specifying this field may override
// this behavior, i.e. forcing the Gardener to only look into the given secret.
// +optional
SecretName *string `json:"secretName,omitempty" protobuf:"bytes,3,opt,name=secretName"`
// Type is the DNS provider type.
// +optional
Type *string `json:"type,omitempty" protobuf:"bytes,4,opt,name=type"`
// Zones contains information about which hosted zones shall be included/excluded for this provider.
// +optional
Zones *DNSIncludeExclude `json:"zones,omitempty" protobuf:"bytes,5,opt,name=zones"`
}
type DNSIncludeExclude struct {
// Include is a list of resources that shall be included.
// +optional
Include []string `json:"include,omitempty" protobuf:"bytes,1,rep,name=include"`
// Exclude is a list of resources that shall be excluded.
// +optional
Exclude []string `json:"exclude,omitempty" protobuf:"bytes,2,rep,name=exclude"`
}
// DefaultDomain is the default value in the Shoot's '.spec.dns.domain' when '.spec.dns.provider' is 'unmanaged'
const DefaultDomain = "cluster.local"
//////////////////////////////////////////////////////////////////////////////////////////////////
// Extension relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Extension contains type and provider information for Shoot extensions.
type Extension struct {
// Type is the type of the extension resource.
Type string `json:"type" protobuf:"bytes,1,opt,name=type"`
// ProviderConfig is the configuration passed to extension resource.
// +optional
ProviderConfig *runtime.RawExtension `json:"providerConfig,omitempty" protobuf:"bytes,2,opt,name=providerConfig"`
// Disabled allows to disable extensions that were marked as 'globally enabled' by Gardener administrators.
// +optional
Disabled *bool `json:"disabled,omitempty" protobuf:"varint,3,opt,name=disabled"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// NamedResourceReference relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// NamedResourceReference is a named reference to a resource.
type NamedResourceReference struct {
// Name of the resource reference.
Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
// ResourceRef is a reference to a resource.
ResourceRef autoscalingv1.CrossVersionObjectReference `json:"resourceRef" protobuf:"bytes,2,opt,name=resourceRef"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Hibernation relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Hibernation contains information whether the Shoot is suspended or not.
type Hibernation struct {
// Enabled specifies whether the Shoot needs to be hibernated or not. If it is true, the Shoot's desired state is to be hibernated.
// If it is false or nil, the Shoot's desired state is to be awaken.
// +optional
Enabled *bool `json:"enabled,omitempty" protobuf:"varint,1,opt,name=enabled"`
// Schedules determine the hibernation schedules.
// +optional
Schedules []HibernationSchedule `json:"schedules,omitempty" protobuf:"bytes,2,rep,name=schedules"`
}
// HibernationSchedule determines the hibernation schedule of a Shoot.
// A Shoot will be regularly hibernated at each start time and will be woken up at each end time.
// Start or End can be omitted, though at least one of each has to be specified.
type HibernationSchedule struct {
// Start is a Cron spec at which time a Shoot will be hibernated.
// +optional
Start *string `json:"start,omitempty" protobuf:"bytes,1,opt,name=start"`
// End is a Cron spec at which time a Shoot will be woken up.
// +optional
End *string `json:"end,omitempty" protobuf:"bytes,2,opt,name=end"`
// Location is the time location in which both start and and shall be evaluated.
// +optional
Location *string `json:"location,omitempty" protobuf:"bytes,3,opt,name=location"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Kubernetes relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Kubernetes contains the version and configuration variables for the Shoot control plane.
type Kubernetes struct {
// AllowPrivilegedContainers indicates whether privileged containers are allowed in the Shoot (default: true).
// +optional
AllowPrivilegedContainers *bool `json:"allowPrivilegedContainers,omitempty" protobuf:"varint,1,opt,name=allowPrivilegedContainers"`
// ClusterAutoscaler contains the configuration flags for the Kubernetes cluster autoscaler.
// +optional
ClusterAutoscaler *ClusterAutoscaler `json:"clusterAutoscaler,omitempty" protobuf:"bytes,2,opt,name=clusterAutoscaler"`
// KubeAPIServer contains configuration settings for the kube-apiserver.
// +optional
KubeAPIServer *KubeAPIServerConfig `json:"kubeAPIServer,omitempty" protobuf:"bytes,3,opt,name=kubeAPIServer"`
// KubeControllerManager contains configuration settings for the kube-controller-manager.
// +optional
KubeControllerManager *KubeControllerManagerConfig `json:"kubeControllerManager,omitempty" protobuf:"bytes,4,opt,name=kubeControllerManager"`
// KubeScheduler contains configuration settings for the kube-scheduler.
// +optional
KubeScheduler *KubeSchedulerConfig `json:"kubeScheduler,omitempty" protobuf:"bytes,5,opt,name=kubeScheduler"`
// KubeProxy contains configuration settings for the kube-proxy.
// +optional
KubeProxy *KubeProxyConfig `json:"kubeProxy,omitempty" protobuf:"bytes,6,opt,name=kubeProxy"`
// Kubelet contains configuration settings for the kubelet.
// +optional
Kubelet *KubeletConfig `json:"kubelet,omitempty" protobuf:"bytes,7,opt,name=kubelet"`
// Version is the semantic Kubernetes version to use for the Shoot cluster.
Version string `json:"version" protobuf:"bytes,8,opt,name=version"`
// VerticalPodAutoscaler contains the configuration flags for the Kubernetes vertical pod autoscaler.
// +optional
VerticalPodAutoscaler *VerticalPodAutoscaler `json:"verticalPodAutoscaler,omitempty" protobuf:"bytes,9,opt,name=verticalPodAutoscaler"`
}
// ClusterAutoscaler contains the configuration flags for the Kubernetes cluster autoscaler.
type ClusterAutoscaler struct {
// ScaleDownDelayAfterAdd defines how long after scale up that scale down evaluation resumes (default: 1 hour).
// +optional
ScaleDownDelayAfterAdd *metav1.Duration `json:"scaleDownDelayAfterAdd,omitempty" protobuf:"bytes,1,opt,name=scaleDownDelayAfterAdd"`
// ScaleDownDelayAfterDelete how long after node deletion that scale down evaluation resumes, defaults to scanInterval (defaults to ScanInterval).
// +optional
ScaleDownDelayAfterDelete *metav1.Duration `json:"scaleDownDelayAfterDelete,omitempty" protobuf:"bytes,2,opt,name=scaleDownDelayAfterDelete"`
// ScaleDownDelayAfterFailure how long after scale down failure that scale down evaluation resumes (default: 3 mins).
// +optional
ScaleDownDelayAfterFailure *metav1.Duration `json:"scaleDownDelayAfterFailure,omitempty" protobuf:"bytes,3,opt,name=scaleDownDelayAfterFailure"`
// ScaleDownUnneededTime defines how long a node should be unneeded before it is eligible for scale down (default: 30 mins).
// +optional
ScaleDownUnneededTime *metav1.Duration `json:"scaleDownUnneededTime,omitempty" protobuf:"bytes,4,opt,name=scaleDownUnneededTime"`
// ScaleDownUtilizationThreshold defines the threshold in % under which a node is being removed
// +optional
ScaleDownUtilizationThreshold *float64 `json:"scaleDownUtilizationThreshold,omitempty" protobuf:"fixed64,5,opt,name=scaleDownUtilizationThreshold"`
// ScanInterval how often cluster is reevaluated for scale up or down (default: 10 secs).
// +optional
ScanInterval *metav1.Duration `json:"scanInterval,omitempty" protobuf:"bytes,6,opt,name=scanInterval"`
}
// VerticalPodAutoscaler contains the configuration flags for the Kubernetes vertical pod autoscaler.
type VerticalPodAutoscaler struct {
// Enabled specifies whether the Kubernetes VPA shall be enabled for the shoot cluster.
Enabled bool `json:"enabled" protobuf:"varint,1,opt,name=enabled"`
// EvictAfterOOMThreshold defines the threshold that will lead to pod eviction in case it OOMed in less than the given
// threshold since its start and if it has only one container (default: 10m0s).
// +optional
EvictAfterOOMThreshold *metav1.Duration `json:"evictAfterOOMThreshold,omitempty" protobuf:"bytes,2,opt,name=evictAfterOOMThreshold"`
// EvictionRateBurst defines the burst of pods that can be evicted (default: 1)
// +optional
EvictionRateBurst *int32 `json:"evictionRateBurst,omitempty" protobuf:"varint,3,opt,name=evictionRateBurst"`
// EvictionRateLimit defines the number of pods that can be evicted per second. A rate limit set to 0 or -1 will
// disable the rate limiter (default: -1).
// +optional
EvictionRateLimit *float64 `json:"evictionRateLimit,omitempty" protobuf:"fixed64,4,opt,name=evictionRateLimit"`
// EvictionTolerance defines the fraction of replica count that can be evicted for update in case more than one
// pod can be evicted (default: 0.5).
// +optional
EvictionTolerance *float64 `json:"evictionTolerance,omitempty" protobuf:"fixed64,5,opt,name=evictionTolerance"`
// RecommendationMarginFraction is the fraction of usage added as the safety margin to the recommended request
// (default: 0.15).
// +optional
RecommendationMarginFraction *float64 `json:"recommendationMarginFraction,omitempty" protobuf:"fixed64,6,opt,name=recommendationMarginFraction"`
// UpdaterInterval is the interval how often the updater should run (default: 1m0s).
// +optional
UpdaterInterval *metav1.Duration `json:"updaterInterval,omitempty" protobuf:"bytes,7,opt,name=updaterInterval"`
// RecommenderInterval is the interval how often metrics should be fetched (default: 1m0s).
// +optional
RecommenderInterval *metav1.Duration `json:"recommenderInterval,omitempty" protobuf:"bytes,8,opt,name=recommenderInterval"`
}
const (
// DefaultEvictionRateBurst is the default value for the EvictionRateBurst field in the VPA configuration.
DefaultEvictionRateBurst int32 = 1
// DefaultEvictionRateLimit is the default value for the EvictionRateLimit field in the VPA configuration.
DefaultEvictionRateLimit float64 = -1
// DefaultEvictionTolerance is the default value for the EvictionTolerance field in the VPA configuration.
DefaultEvictionTolerance = 0.5
// DefaultRecommendationMarginFraction is the default value for the RecommendationMarginFraction field in the VPA configuration.
DefaultRecommendationMarginFraction = 0.15
)
var (
// DefaultEvictAfterOOMThreshold is the default value for the EvictAfterOOMThreshold field in the VPA configuration.
DefaultEvictAfterOOMThreshold = metav1.Duration{Duration: 10 * time.Minute}
// DefaultUpdaterInterval is the default value for the UpdaterInterval field in the VPA configuration.
DefaultUpdaterInterval = metav1.Duration{Duration: time.Minute}
// DefaultRecommenderInterval is the default value for the RecommenderInterval field in the VPA configuration.
DefaultRecommenderInterval = metav1.Duration{Duration: time.Minute}
)
// KubernetesConfig contains common configuration fields for the control plane components.
type KubernetesConfig struct {
// FeatureGates contains information about enabled feature gates.
// +optional
FeatureGates map[string]bool `json:"featureGates,omitempty" protobuf:"bytes,1,rep,name=featureGates"`
}
// KubeAPIServerConfig contains configuration settings for the kube-apiserver.
type KubeAPIServerConfig struct {
KubernetesConfig `json:",inline" protobuf:"bytes,1,opt,name=kubernetesConfig"`
// AdmissionPlugins contains the list of user-defined admission plugins (additional to those managed by Gardener), and, if desired, the corresponding
// configuration.
// +patchMergeKey=name
// +patchStrategy=merge
// +optional
AdmissionPlugins []AdmissionPlugin `json:"admissionPlugins,omitempty" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,2,rep,name=admissionPlugins"`
// APIAudiences are the identifiers of the API. The service account token authenticator will
// validate that tokens used against the API are bound to at least one of these audiences.
// Defaults to ["kubernetes"].
// +optional
APIAudiences []string `json:"apiAudiences,omitempty" protobuf:"bytes,3,rep,name=apiAudiences"`
// AuditConfig contains configuration settings for the audit of the kube-apiserver.
// +optional
AuditConfig *AuditConfig `json:"auditConfig,omitempty" protobuf:"bytes,4,opt,name=auditConfig"`
// EnableBasicAuthentication defines whether basic authentication should be enabled for this cluster or not.
// +optional
EnableBasicAuthentication *bool `json:"enableBasicAuthentication,omitempty" protobuf:"varint,5,opt,name=enableBasicAuthentication"`
// OIDCConfig contains configuration settings for the OIDC provider.
// +optional
OIDCConfig *OIDCConfig `json:"oidcConfig,omitempty" protobuf:"bytes,6,opt,name=oidcConfig"`
// RuntimeConfig contains information about enabled or disabled APIs.
// +optional
RuntimeConfig map[string]bool `json:"runtimeConfig,omitempty" protobuf:"bytes,7,rep,name=runtimeConfig"`
// ServiceAccountConfig contains configuration settings for the service account handling
// of the kube-apiserver.
// +optional
ServiceAccountConfig *ServiceAccountConfig `json:"serviceAccountConfig,omitempty" protobuf:"bytes,8,opt,name=serviceAccountConfig"`
// WatchCacheSizes contains configuration of the API server's watch cache sizes.
// Configuring these flags might be useful for large-scale Shoot clusters with a lot of parallel update requests
// and a lot of watching controllers (e.g. large shooted Seed clusters). When the API server's watch cache's
// capacity is too small to cope with the amount of update requests and watchers for a particular resource, it
// might happen that controller watches are permanently stopped with `too old resource version` errors.
// Starting from kubernetes v1.19, the API server's watch cache size is adapted dynamically and setting the watch
// cache size flags will have no effect, except when setting it to 0 (which disables the watch cache).
// +optional
WatchCacheSizes *WatchCacheSizes `json:"watchCacheSizes,omitempty" protobuf:"bytes,9,opt,name=watchCacheSizes"`
// Requests contains configuration for request-specific settings for the kube-apiserver.
// +optional
Requests *KubeAPIServerRequests `json:"requests,omitempty" protobuf:"bytes,10,opt,name=requests"`
}
// KubeAPIServerRequests contains configuration for request-specific settings for the kube-apiserver.
type KubeAPIServerRequests struct {
// MaxNonMutatingInflight is the maximum number of non-mutating requests in flight at a given time. When the server
// exceeds this, it rejects requests.
// +optional
MaxNonMutatingInflight *int32 `json:"maxNonMutatingInflight,omitempty" protobuf:"bytes,1,name=maxNonMutatingInflight"`
// MaxMutatingInflight is the maximum number of mutating requests in flight at a given time. When the server
// exceeds this, it rejects requests.
// +optional
MaxMutatingInflight *int32 `json:"maxMutatingInflight,omitempty" protobuf:"bytes,2,name=maxMutatingInflight"`
}
// ServiceAccountConfig is the kube-apiserver configuration for service accounts.
type ServiceAccountConfig struct {
// Issuer is the identifier of the service account token issuer. The issuer will assert this
// identifier in "iss" claim of issued tokens. This value is a string or URI.
// Defaults to URI of the API server.
// +optional
Issuer *string `json:"issuer,omitempty" protobuf:"bytes,1,opt,name=issuer"`
// SigningKeySecret is a reference to a secret that contains an optional private key of the
// service account token issuer. The issuer will sign issued ID tokens with this private key.
// Only useful if service account tokens are also issued by another external system.
// +optional
SigningKeySecret *corev1.LocalObjectReference `json:"signingKeySecretName,omitempty" protobuf:"bytes,2,opt,name=signingKeySecretName"`
}
// AuditConfig contains settings for audit of the api server
type AuditConfig struct {
// AuditPolicy contains configuration settings for audit policy of the kube-apiserver.
// +optional
AuditPolicy *AuditPolicy `json:"auditPolicy,omitempty" protobuf:"bytes,1,opt,name=auditPolicy"`
}
// AuditPolicy contains audit policy for kube-apiserver
type AuditPolicy struct {
// ConfigMapRef is a reference to a ConfigMap object in the same namespace,
// which contains the audit policy for the kube-apiserver.
// +optional
ConfigMapRef *corev1.ObjectReference `json:"configMapRef,omitempty" protobuf:"bytes,1,opt,name=configMapRef"`
}
// OIDCConfig contains configuration settings for the OIDC provider.
// Note: Descriptions were taken from the Kubernetes documentation.
type OIDCConfig struct {
// If set, the OpenID server's certificate will be verified by one of the authorities in the oidc-ca-file, otherwise the host's root CA set will be used.
// +optional
CABundle *string `json:"caBundle,omitempty" protobuf:"bytes,1,opt,name=caBundle"`
// ClientAuthentication can optionally contain client configuration used for kubeconfig generation.
// +optional
ClientAuthentication *OpenIDConnectClientAuthentication `json:"clientAuthentication,omitempty" protobuf:"bytes,2,opt,name=clientAuthentication"`
// The client ID for the OpenID Connect client, must be set if oidc-issuer-url is set.
// +optional
ClientID *string `json:"clientID,omitempty" protobuf:"bytes,3,opt,name=clientID"`
// If provided, the name of a custom OpenID Connect claim for specifying user groups. The claim value is expected to be a string or array of strings. This flag is experimental, please see the authentication documentation for further details.
// +optional
GroupsClaim *string `json:"groupsClaim,omitempty" protobuf:"bytes,4,opt,name=groupsClaim"`
// If provided, all groups will be prefixed with this value to prevent conflicts with other authentication strategies.
// +optional
GroupsPrefix *string `json:"groupsPrefix,omitempty" protobuf:"bytes,5,opt,name=groupsPrefix"`
// The URL of the OpenID issuer, only HTTPS scheme will be accepted. If set, it will be used to verify the OIDC JSON Web Token (JWT).
// +optional
IssuerURL *string `json:"issuerURL,omitempty" protobuf:"bytes,6,opt,name=issuerURL"`
// ATTENTION: Only meaningful for Kubernetes >= 1.11
// key=value pairs that describes a required claim in the ID Token. If set, the claim is verified to be present in the ID Token with a matching value.
// +optional
RequiredClaims map[string]string `json:"requiredClaims,omitempty" protobuf:"bytes,7,rep,name=requiredClaims"`
// List of allowed JOSE asymmetric signing algorithms. JWTs with a 'alg' header value not in this list will be rejected. Values are defined by RFC 7518 https://tools.ietf.org/html/rfc7518#section-3.1
// +optional
SigningAlgs []string `json:"signingAlgs,omitempty" protobuf:"bytes,8,rep,name=signingAlgs"`
// The OpenID claim to use as the user name. Note that claims other than the default ('sub') is not guaranteed to be unique and immutable. This flag is experimental, please see the authentication documentation for further details. (default "sub")
// +optional
UsernameClaim *string `json:"usernameClaim,omitempty" protobuf:"bytes,9,opt,name=usernameClaim"`
// If provided, all usernames will be prefixed with this value. If not provided, username claims other than 'email' are prefixed by the issuer URL to avoid clashes. To skip any prefixing, provide the value '-'.
// +optional
UsernamePrefix *string `json:"usernamePrefix,omitempty" protobuf:"bytes,10,opt,name=usernamePrefix"`
}
// OpenIDConnectClientAuthentication contains configuration for OIDC clients.
type OpenIDConnectClientAuthentication struct {
// Extra configuration added to kubeconfig's auth-provider.
// Must not be any of idp-issuer-url, client-id, client-secret, idp-certificate-authority, idp-certificate-authority-data, id-token or refresh-token
// +optional
ExtraConfig map[string]string `json:"extraConfig,omitempty" protobuf:"bytes,1,rep,name=extraConfig"`
// The client Secret for the OpenID Connect client.
// +optional
Secret *string `json:"secret,omitempty" protobuf:"bytes,2,opt,name=secret"`
}
// AdmissionPlugin contains information about a specific admission plugin and its corresponding configuration.
type AdmissionPlugin struct {
// Name is the name of the plugin.
Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
// Config is the configuration of the plugin.
// +optional
Config *runtime.RawExtension `json:"config,omitempty" protobuf:"bytes,2,opt,name=config"`
}
// WatchCacheSizes contains configuration of the API server's watch cache sizes.
type WatchCacheSizes struct {
// Default configures the default watch cache size of the kube-apiserver
// (flag `--default-watch-cache-size`, defaults to 100).
// See: https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/
// +optional
Default *int32 `json:"default,omitempty" protobuf:"varint,1,opt,name=default"`
// Resources configures the watch cache size of the kube-apiserver per resource
// (flag `--watch-cache-sizes`).
// See: https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/
// +optional
Resources []ResourceWatchCacheSize `json:"resources,omitempty" protobuf:"bytes,2,rep,name=resources"`
}
// ResourceWatchCacheSize contains configuration of the API server's watch cache size for one specific resource.
type ResourceWatchCacheSize struct {
// APIGroup is the API group of the resource for which the watch cache size should be configured.
// An unset value is used to specify the legacy core API (e.g. for `secrets`).
// +optional
APIGroup *string `json:"apiGroup,omitempty" protobuf:"bytes,1,opt,name=apiGroup"`
// Resource is the name of the resource for which the watch cache size should be configured
// (in lowercase plural form, e.g. `secrets`).
Resource string `json:"resource" protobuf:"bytes,2,opt,name=resource"`
// CacheSize specifies the watch cache size that should be configured for the specified resource.
CacheSize int32 `json:"size" protobuf:"varint,3,opt,name=size"`
}
// KubeControllerManagerConfig contains configuration settings for the kube-controller-manager.
type KubeControllerManagerConfig struct {
KubernetesConfig `json:",inline" protobuf:"bytes,1,opt,name=kubernetesConfig"`
// HorizontalPodAutoscalerConfig contains horizontal pod autoscaler configuration settings for the kube-controller-manager.
// +optional
HorizontalPodAutoscalerConfig *HorizontalPodAutoscalerConfig `json:"horizontalPodAutoscaler,omitempty" protobuf:"bytes,2,opt,name=horizontalPodAutoscaler"`
// NodeCIDRMaskSize defines the mask size for node cidr in cluster (default is 24)
// +optional
NodeCIDRMaskSize *int32 `json:"nodeCIDRMaskSize,omitempty" protobuf:"varint,3,opt,name=nodeCIDRMaskSize"`
// PodEvictionTimeout defines the grace period for deleting pods on failed nodes. Defaults to 2m.
// +optional
PodEvictionTimeout *metav1.Duration `json:"podEvictionTimeout,omitempty" protobuf:"bytes,4,opt,name=podEvictionTimeout"`
}
// HorizontalPodAutoscalerConfig contains horizontal pod autoscaler configuration settings for the kube-controller-manager.
// Note: Descriptions were taken from the Kubernetes documentation.
type HorizontalPodAutoscalerConfig struct {
// The period after which a ready pod transition is considered to be the first.
// +optional
CPUInitializationPeriod *metav1.Duration `json:"cpuInitializationPeriod,omitempty" protobuf:"bytes,1,opt,name=cpuInitializationPeriod"`
// The period since last downscale, before another downscale can be performed in horizontal pod autoscaler.
// +optional
DownscaleDelay *metav1.Duration `json:"downscaleDelay,omitempty" protobuf:"bytes,2,opt,name=downscaleDelay"`
// The configurable window at which the controller will choose the highest recommendation for autoscaling.
// +optional
DownscaleStabilization *metav1.Duration `json:"downscaleStabilization,omitempty" protobuf:"bytes,3,opt,name=downscaleStabilization"`
// The configurable period at which the horizontal pod autoscaler considers a Pod “not yet ready” given that it’s unready and it has transitioned to unready during that time.
// +optional
InitialReadinessDelay *metav1.Duration `json:"initialReadinessDelay,omitempty" protobuf:"bytes,4,opt,name=initialReadinessDelay"`
// The period for syncing the number of pods in horizontal pod autoscaler.
// +optional
SyncPeriod *metav1.Duration `json:"syncPeriod,omitempty" protobuf:"bytes,5,opt,name=syncPeriod"`
// The minimum change (from 1.0) in the desired-to-actual metrics ratio for the horizontal pod autoscaler to consider scaling.
// +optional
Tolerance *float64 `json:"tolerance,omitempty" protobuf:"fixed64,6,opt,name=tolerance"`
// The period since last upscale, before another upscale can be performed in horizontal pod autoscaler.
// +optional
UpscaleDelay *metav1.Duration `json:"upscaleDelay,omitempty" protobuf:"bytes,7,opt,name=upscaleDelay"`
}
const (
// DefaultHPADownscaleDelay is a constant for the default HPA downscale delay for a Shoot cluster.
DefaultHPADownscaleDelay = 15 * time.Minute
// DefaultHPASyncPeriod is a constant for the default HPA sync period for a Shoot cluster.
DefaultHPASyncPeriod = 30 * time.Second
// DefaultHPATolerance is a constant for the default HPA tolerance for a Shoot cluster.
DefaultHPATolerance = 0.1
// DefaultHPAUpscaleDelay is for the default HPA upscale delay for a Shoot cluster.
DefaultHPAUpscaleDelay = 1 * time.Minute
// DefaultDownscaleStabilization is the default HPA downscale stabilization window for a Shoot cluster
DefaultDownscaleStabilization = 5 * time.Minute
// DefaultInitialReadinessDelay is for the default HPA ReadinessDelay value in the Shoot cluster
DefaultInitialReadinessDelay = 30 * time.Second
// DefaultCPUInitializationPeriod is the for the default value of the CPUInitializationPeriod in the Shoot cluster
DefaultCPUInitializationPeriod = 5 * time.Minute
)
// KubeSchedulerConfig contains configuration settings for the kube-scheduler.
type KubeSchedulerConfig struct {
KubernetesConfig `json:",inline" protobuf:"bytes,1,opt,name=kubernetesConfig"`
// KubeMaxPDVols allows to configure the `KUBE_MAX_PD_VOLS` environment variable for the kube-scheduler.
// Please find more information here: https://kubernetes.io/docs/concepts/storage/storage-limits/#custom-limits
// Note that using this field is considered alpha-/experimental-level and is on your own risk. You should be aware
// of all the side-effects and consequences when changing it.
// +optional
KubeMaxPDVols *string `json:"kubeMaxPDVols,omitempty" protobuf:"bytes,2,opt,name=kubeMaxPDVols"`
}
// KubeProxyConfig contains configuration settings for the kube-proxy.
type KubeProxyConfig struct {
KubernetesConfig `json:",inline" protobuf:"bytes,1,opt,name=kubernetesConfig"`
// Mode specifies which proxy mode to use.
// defaults to IPTables.
// +optional
Mode *ProxyMode `json:"mode,omitempty" protobuf:"bytes,2,opt,name=mode,casttype=ProxyMode"`
}
// ProxyMode available in Linux platform: 'userspace' (older, going to be EOL), 'iptables'
// (newer, faster), 'ipvs' (newest, better in performance and scalability).
// As of now only 'iptables' and 'ipvs' is supported by Gardener.
// In Linux platform, if the iptables proxy is selected, regardless of how, but the system's kernel or iptables versions are
// insufficient, this always falls back to the userspace proxy. IPVS mode will be enabled when proxy mode is set to 'ipvs',
// and the fall back path is firstly iptables and then userspace.
type ProxyMode string
const (
// ProxyModeIPTables uses iptables as proxy implementation.
ProxyModeIPTables ProxyMode = "IPTables"
// ProxyModeIPVS uses ipvs as proxy implementation.
ProxyModeIPVS ProxyMode = "IPVS"
)
// KubeletConfig contains configuration settings for the kubelet.
type KubeletConfig struct {
KubernetesConfig `json:",inline" protobuf:"bytes,1,opt,name=kubernetesConfig"`
// CPUCFSQuota allows you to disable/enable CPU throttling for Pods.
// +optional
CPUCFSQuota *bool `json:"cpuCFSQuota,omitempty" protobuf:"varint,2,opt,name=cpuCFSQuota"`
// CPUManagerPolicy allows to set alternative CPU management policies (default: none).
// +optional
CPUManagerPolicy *string `json:"cpuManagerPolicy,omitempty" protobuf:"bytes,3,opt,name=cpuManagerPolicy"`
// EvictionHard describes a set of eviction thresholds (e.g. memory.available<1Gi) that if met would trigger a Pod eviction.
// +optional
// Default:
// memory.available: "100Mi/1Gi/5%"
// nodefs.available: "5%"
// nodefs.inodesFree: "5%"
// imagefs.available: "5%"
// imagefs.inodesFree: "5%"
EvictionHard *KubeletConfigEviction `json:"evictionHard,omitempty" protobuf:"bytes,4,opt,name=evictionHard"`
// EvictionMaxPodGracePeriod describes the maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met.
// +optional
// Default: 90
EvictionMaxPodGracePeriod *int32 `json:"evictionMaxPodGracePeriod,omitempty" protobuf:"varint,5,opt,name=evictionMaxPodGracePeriod"`
// EvictionMinimumReclaim configures the amount of resources below the configured eviction threshold that the kubelet attempts to reclaim whenever the kubelet observes resource pressure.
// +optional
// Default: 0 for each resource
EvictionMinimumReclaim *KubeletConfigEvictionMinimumReclaim `json:"evictionMinimumReclaim,omitempty" protobuf:"bytes,6,opt,name=evictionMinimumReclaim"`
// EvictionPressureTransitionPeriod is the duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.
// +optional
// Default: 4m0s
EvictionPressureTransitionPeriod *metav1.Duration `json:"evictionPressureTransitionPeriod,omitempty" protobuf:"bytes,7,opt,name=evictionPressureTransitionPeriod"`
// EvictionSoft describes a set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a Pod eviction.
// +optional
// Default:
// memory.available: "200Mi/1.5Gi/10%"
// nodefs.available: "10%"
// nodefs.inodesFree: "10%"
// imagefs.available: "10%"
// imagefs.inodesFree: "10%"
EvictionSoft *KubeletConfigEviction `json:"evictionSoft,omitempty" protobuf:"bytes,8,opt,name=evictionSoft"`
// EvictionSoftGracePeriod describes a set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a Pod eviction.
// +optional
// Default:
// memory.available: 1m30s
// nodefs.available: 1m30s
// nodefs.inodesFree: 1m30s
// imagefs.available: 1m30s
// imagefs.inodesFree: 1m30s
EvictionSoftGracePeriod *KubeletConfigEvictionSoftGracePeriod `json:"evictionSoftGracePeriod,omitempty" protobuf:"bytes,9,opt,name=evictionSoftGracePeriod"`
// MaxPods is the maximum number of Pods that are allowed by the Kubelet.
// +optional
// Default: 110
MaxPods *int32 `json:"maxPods,omitempty" protobuf:"varint,10,opt,name=maxPods"`
// PodPIDsLimit is the maximum number of process IDs per pod allowed by the kubelet.
// +optional
PodPIDsLimit *int64 `json:"podPidsLimit,omitempty" protobuf:"varint,11,opt,name=podPidsLimit"`
// ImagePullProgressDeadline describes the time limit under which if no pulling progress is made, the image pulling will be cancelled.
// +optional
// Default: 1m
ImagePullProgressDeadline *metav1.Duration `json:"imagePullProgressDeadline,omitempty" protobuf:"bytes,12,opt,name=imagePullProgressDeadline"`
// FailSwapOn makes the Kubelet fail to start if swap is enabled on the node. (default true).
// +optional
FailSwapOn *bool `json:"failSwapOn,omitempty" protobuf:"varint,13,opt,name=failSwapOn"`
// KubeReserved is the configuration for resources reserved for kubernetes node components (mainly kubelet and container runtime).
// When updating these values, be aware that cgroup resizes may not succeed on active worker nodes. Look for the NodeAllocatableEnforced event to determine if the configuration was applied.
// +optional
// Default: cpu=80m,memory=1Gi,pid=20k
KubeReserved *KubeletConfigReserved `json:"kubeReserved,omitempty" protobuf:"bytes,14,opt,name=kubeReserved"`
// SystemReserved is the configuration for resources reserved for system processes not managed by kubernetes (e.g. journald).
// When updating these values, be aware that cgroup resizes may not succeed on active worker nodes. Look for the NodeAllocatableEnforced event to determine if the configuration was applied.
// +optional
SystemReserved *KubeletConfigReserved `json:"systemReserved,omitempty" protobuf:"bytes,15,opt,name=systemReserved"`
}
// KubeletConfigEviction contains kubelet eviction thresholds supporting either a resource.Quantity or a percentage based value.
type KubeletConfigEviction struct {
// MemoryAvailable is the threshold for the free memory on the host server.
// +optional
MemoryAvailable *string `json:"memoryAvailable,omitempty" protobuf:"bytes,1,opt,name=memoryAvailable"`
// ImageFSAvailable is the threshold for the free disk space in the imagefs filesystem (docker images and container writable layers).
// +optional
ImageFSAvailable *string `json:"imageFSAvailable,omitempty" protobuf:"bytes,2,opt,name=imageFSAvailable"`
// ImageFSInodesFree is the threshold for the available inodes in the imagefs filesystem.
// +optional
ImageFSInodesFree *string `json:"imageFSInodesFree,omitempty" protobuf:"bytes,3,opt,name=imageFSInodesFree"`
// NodeFSAvailable is the threshold for the free disk space in the nodefs filesystem (docker volumes, logs, etc).
// +optional
NodeFSAvailable *string `json:"nodeFSAvailable,omitempty" protobuf:"bytes,4,opt,name=nodeFSAvailable"`
// NodeFSInodesFree is the threshold for the available inodes in the nodefs filesystem.
// +optional
NodeFSInodesFree *string `json:"nodeFSInodesFree,omitempty" protobuf:"bytes,5,opt,name=nodeFSInodesFree"`
}
// KubeletConfigEvictionMinimumReclaim contains configuration for the kubelet eviction minimum reclaim.
type KubeletConfigEvictionMinimumReclaim struct {
// MemoryAvailable is the threshold for the memory reclaim on the host server.
// +optional
MemoryAvailable *resource.Quantity `json:"memoryAvailable,omitempty" protobuf:"bytes,1,opt,name=memoryAvailable"`
// ImageFSAvailable is the threshold for the disk space reclaim in the imagefs filesystem (docker images and container writable layers).
// +optional
ImageFSAvailable *resource.Quantity `json:"imageFSAvailable,omitempty" protobuf:"bytes,2,opt,name=imageFSAvailable"`
// ImageFSInodesFree is the threshold for the inodes reclaim in the imagefs filesystem.
// +optional
ImageFSInodesFree *resource.Quantity `json:"imageFSInodesFree,omitempty" protobuf:"bytes,3,opt,name=imageFSInodesFree"`
// NodeFSAvailable is the threshold for the disk space reclaim in the nodefs filesystem (docker volumes, logs, etc).
// +optional
NodeFSAvailable *resource.Quantity `json:"nodeFSAvailable,omitempty" protobuf:"bytes,4,opt,name=nodeFSAvailable"`
// NodeFSInodesFree is the threshold for the inodes reclaim in the nodefs filesystem.
// +optional
NodeFSInodesFree *resource.Quantity `json:"nodeFSInodesFree,omitempty" protobuf:"bytes,5,opt,name=nodeFSInodesFree"`
}
// KubeletConfigEvictionSoftGracePeriod contains grace periods for kubelet eviction thresholds.
type KubeletConfigEvictionSoftGracePeriod struct {
// MemoryAvailable is the grace period for the MemoryAvailable eviction threshold.
// +optional
MemoryAvailable *metav1.Duration `json:"memoryAvailable,omitempty" protobuf:"bytes,1,opt,name=memoryAvailable"`
// ImageFSAvailable is the grace period for the ImageFSAvailable eviction threshold.
// +optional
ImageFSAvailable *metav1.Duration `json:"imageFSAvailable,omitempty" protobuf:"bytes,2,opt,name=imageFSAvailable"`
// ImageFSInodesFree is the grace period for the ImageFSInodesFree eviction threshold.
// +optional
ImageFSInodesFree *metav1.Duration `json:"imageFSInodesFree,omitempty" protobuf:"bytes,3,opt,name=imageFSInodesFree"`
// NodeFSAvailable is the grace period for the NodeFSAvailable eviction threshold.
// +optional
NodeFSAvailable *metav1.Duration `json:"nodeFSAvailable,omitempty" protobuf:"bytes,4,opt,name=nodeFSAvailable"`
// NodeFSInodesFree is the grace period for the NodeFSInodesFree eviction threshold.
// +optional
NodeFSInodesFree *metav1.Duration `json:"nodeFSInodesFree,omitempty" protobuf:"bytes,5,opt,name=nodeFSInodesFree"`
}
// KubeletConfigReserved contains reserved resources for daemons
type KubeletConfigReserved struct {
// CPU is the reserved cpu.
// +optional
CPU *resource.Quantity `json:"cpu,omitempty" protobuf:"bytes,1,opt,name=cpu"`
// Memory is the reserved memory.
// +optional
Memory *resource.Quantity `json:"memory,omitempty" protobuf:"bytes,2,opt,name=memory"`
// EphemeralStorage is the reserved ephemeral-storage.
// +optional
EphemeralStorage *resource.Quantity `json:"ephemeralStorage,omitempty" protobuf:"bytes,3,opt,name=ephemeralStorage"`
// PID is the reserved process-ids.
// To reserve PID, the SupportNodePidsLimit feature gate must be enabled in Kubernetes versions < 1.15.
// +optional
PID *resource.Quantity `json:"pid,omitempty" protobuf:"bytes,4,opt,name=pid"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Networking relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Networking defines networking parameters for the shoot cluster.
type Networking struct {
// Type identifies the type of the networking plugin.
Type string `json:"type" protobuf:"bytes,1,opt,name=type"`
// ProviderConfig is the configuration passed to network resource.
// +optional
ProviderConfig *runtime.RawExtension `json:"providerConfig,omitempty" protobuf:"bytes,2,opt,name=providerConfig"`
// Pods is the CIDR of the pod network.
// +optional
Pods *string `json:"pods,omitempty" protobuf:"bytes,3,opt,name=pods"`
// Nodes is the CIDR of the entire node network.
// +optional
Nodes *string `json:"nodes,omitempty" protobuf:"bytes,4,opt,name=nodes"`
// Services is the CIDR of the service network.
// +optional
Services *string `json:"services,omitempty" protobuf:"bytes,5,opt,name=services"`
}
const (
// DefaultPodNetworkCIDR is a constant for the default pod network CIDR of a Shoot cluster.
DefaultPodNetworkCIDR = "100.96.0.0/11"
// DefaultServiceNetworkCIDR is a constant for the default service network CIDR of a Shoot cluster.
DefaultServiceNetworkCIDR = "100.64.0.0/13"
)
//////////////////////////////////////////////////////////////////////////////////////////////////
// Maintenance relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
const (
// MaintenanceTimeWindowDurationMinimum is the minimum duration for a maintenance time window.
MaintenanceTimeWindowDurationMinimum = 30 * time.Minute
// MaintenanceTimeWindowDurationMaximum is the maximum duration for a maintenance time window.
MaintenanceTimeWindowDurationMaximum = 6 * time.Hour
)
// Maintenance contains information about the time window for maintenance operations and which
// operations should be performed.
type Maintenance struct {
// AutoUpdate contains information about which constraints should be automatically updated.
// +optional
AutoUpdate *MaintenanceAutoUpdate `json:"autoUpdate,omitempty" protobuf:"bytes,1,opt,name=autoUpdate"`
// TimeWindow contains information about the time window for maintenance operations.
// +optional
TimeWindow *MaintenanceTimeWindow `json:"timeWindow,omitempty" protobuf:"bytes,2,opt,name=timeWindow"`
// ConfineSpecUpdateRollout prevents that changes/updates to the shoot specification will be rolled out immediately.
// Instead, they are rolled out during the shoot's maintenance time window. There is one exception that will trigger
// an immediate roll out which is changes to the Spec.Hibernation.Enabled field.
// +optional
ConfineSpecUpdateRollout *bool `json:"confineSpecUpdateRollout,omitempty" protobuf:"varint,3,opt,name=confineSpecUpdateRollout"`
}
// MaintenanceAutoUpdate contains information about which constraints should be automatically updated.
type MaintenanceAutoUpdate struct {
// KubernetesVersion indicates whether the patch Kubernetes version may be automatically updated (default: true).
KubernetesVersion bool `json:"kubernetesVersion" protobuf:"varint,1,opt,name=kubernetesVersion"`
// MachineImageVersion indicates whether the machine image version may be automatically updated (default: true).
MachineImageVersion bool `json:"machineImageVersion" protobuf:"varint,2,opt,name=machineImageVersion"`
}
// MaintenanceTimeWindow contains information about the time window for maintenance operations.
type MaintenanceTimeWindow struct {
// Begin is the beginning of the time window in the format HHMMSS+ZONE, e.g. "220000+0100".
// If not present, a random value will be computed.
Begin string `json:"begin" protobuf:"bytes,1,opt,name=begin"`
// End is the end of the time window in the format HHMMSS+ZONE, e.g. "220000+0100".
// If not present, the value will be computed based on the "Begin" value.
End string `json:"end" protobuf:"bytes,2,opt,name=end"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Monitoring relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Monitoring contains information about the monitoring configuration for the shoot.
type Monitoring struct {
// Alerting contains information about the alerting configuration for the shoot cluster.
// +optional
Alerting *Alerting `json:"alerting,omitempty" protobuf:"bytes,1,opt,name=alerting"`
}
// Alerting contains information about how alerting will be done (i.e. who will receive alerts and how).
type Alerting struct {
// MonitoringEmailReceivers is a list of recipients for alerts
// +optional
EmailReceivers []string `json:"emailReceivers,omitempty" protobuf:"bytes,1,rep,name=emailReceivers"`
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Provider relevant types //
//////////////////////////////////////////////////////////////////////////////////////////////////
// Provider contains provider-specific information that are handed-over to the provider-specific
// extension controller.
type Provider struct {
// Type is the type of the provider.
Type string `json:"type" protobuf:"bytes,1,opt,name=type"`
// ControlPlaneConfig contains the provider-specific control plane config blob. Please look up the concrete
// definition in the documentation of your provider extension.
// +optional
ControlPlaneConfig *runtime.RawExtension `json:"controlPlaneConfig,omitempty" protobuf:"bytes,2,opt,name=controlPlaneConfig"`
// InfrastructureConfig contains the provider-specific infrastructure config blob. Please look up the concrete
// definition in the documentation of your provider extension.
// +optional
InfrastructureConfig *runtime.RawExtension `json:"infrastructureConfig,omitempty" protobuf:"bytes,3,opt,name=infrastructureConfig"`
// Workers is a list of worker groups.
// +patchMergeKey=name
// +patchStrategy=merge
Workers []Worker `json:"workers" patchStrategy:"merge" patchMergeKey:"name" protobuf:"bytes,4,rep,name=workers"`
}
// Worker is the base definition of a worker group.
type Worker struct {
// Annotations is a map of key/value pairs for annotations for all the `Node` objects in this worker pool.
// +optional
Annotations map[string]string `json:"annotations,omitempty" protobuf:"bytes,1,rep,name=annotations"`
// CABundle is a certificate bundle which will be installed onto every machine of this worker pool.
// +optional
CABundle *string `json:"caBundle,omitempty" protobuf:"bytes,2,opt,name=caBundle"`
// CRI contains configurations of CRI support of every machine in the worker pool
// +optional
CRI *CRI `json:"cri,omitempty" protobuf:"bytes,3,opt,name=cri"`
// Kubernetes contains configuration for Kubernetes components related to this worker pool.
// +optional
Kubernetes *WorkerKubernetes `json:"kubernetes,omitempty" protobuf:"bytes,4,opt,name=kubernetes"`
// Labels is a map of key/value pairs for labels for all the `Node` objects in this worker pool.
// +optional
Labels map[string]string `json:"labels,omitempty" protobuf:"bytes,5,rep,name=labels"`
// Name is the name of the worker group.
Name string `json:"name" protobuf:"bytes,6,opt,name=name"`
// Machine contains information about the machine type and image.
Machine Machine `json:"machine" protobuf:"bytes,7,opt,name=machine"`
// Maximum is the maximum number of VMs to create.
Maximum int32 `json:"maximum" protobuf:"varint,8,opt,name=maximum"`
// Minimum is the minimum number of VMs to create.
Minimum int32 `json:"minimum" protobuf:"varint,9,opt,name=minimum"`
// MaxSurge is maximum number of VMs that are created during an update.
// +optional
MaxSurge *intstr.IntOrString `json:"maxSurge,omitempty" protobuf:"bytes,10,opt,name=maxSurge"`
// MaxUnavailable is the maximum number of VMs that can be unavailable during an update.
// +optional
MaxUnavailable *intstr.IntOrString `json:"maxUnavailable,omitempty" protobuf:"bytes,11,opt,name=maxUnavailable"`
// ProviderConfig is the provider-specific configuration for this worker pool.
// +optional
ProviderConfig *runtime.RawExtension `json:"providerConfig,omitempty" protobuf:"bytes,12,opt,name=providerConfig"`
// Taints is a list of taints for all the `Node` objects in this worker pool.
// +optional
Taints []corev1.Taint `json:"taints,omitempty" protobuf:"bytes,13,rep,name=taints"`
// Volume contains information about the volume type and size.
// +optional