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types_controllerregistration.go
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/
types_controllerregistration.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 core
import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// ControllerRegistration represents a registration of an external controller.
type ControllerRegistration struct {
metav1.TypeMeta
// Standard object metadata.
metav1.ObjectMeta
// Spec contains the specification of this registration.
// If the object's deletion timestamp is set, this field is immutable.
Spec ControllerRegistrationSpec
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// ControllerRegistrationList is a collection of ControllerRegistrations.
type ControllerRegistrationList struct {
metav1.TypeMeta
// Standard list object metadata.
metav1.ListMeta
// Items is the list of ControllerRegistrations.
Items []ControllerRegistration
}
// ControllerRegistrationSpec is the specification of a ControllerRegistration.
type ControllerRegistrationSpec struct {
// Resources is a list of combinations of kinds (DNSProvider, Infrastructure, Generic, ...) and their actual types
// (aws-route53, gcp, auditlog, ...).
Resources []ControllerResource
// Deployment contains information for how this controller is deployed.
Deployment *ControllerRegistrationDeployment
}
// ControllerResource is a combination of a kind (DNSProvider, Infrastructure, Generic, ...) and the actual type for this
// kind (aws-route53, gcp, auditlog, ...).
type ControllerResource struct {
// Kind is the resource kind.
Kind string
// Type is the resource type.
Type string
// GloballyEnabled determines if this resource is required by all Shoot clusters.
GloballyEnabled *bool
// ReconcileTimeout defines how long Gardener should wait for the resource reconciliation.
ReconcileTimeout *metav1.Duration
// Primary determines if the controller backed by this ControllerRegistration is responsible for the extension
// resource's lifecycle. This field defaults to true. There must be exactly one primary controller for this kind/type
// combination. This field is immutable.
Primary *bool
}
// DeploymentRef contains information about `ControllerDeployment` references.
type DeploymentRef struct {
// Name is the name of the `ControllerDeployment` that is being referred to.
Name string
}
// ControllerRegistrationDeployment contains information for how this controller is deployed.
type ControllerRegistrationDeployment struct {
// Policy controls how the controller is deployed. It defaults to 'OnDemand'.
Policy *ControllerDeploymentPolicy
// SeedSelector contains an optional label selector for seeds. Only if the labels match then this controller will be
// considered for a deployment.
// An empty list means that all seeds are selected.
SeedSelector *metav1.LabelSelector
// DeploymentRefs holds references to `ControllerDeployments`. Only one element is support now.
DeploymentRefs []DeploymentRef
}
// ControllerDeploymentPolicy is a string alias.
type ControllerDeploymentPolicy string
const (
// ControllerDeploymentPolicyOnDemand specifies that the controller shall be only deployed if required by another
// resource. If nothing requires it then the controller shall not be deployed.
ControllerDeploymentPolicyOnDemand ControllerDeploymentPolicy = "OnDemand"
// ControllerDeploymentPolicyAlways specifies that the controller shall be deployed always, independent of whether
// another resource requires it or the respective seed has shoots.
ControllerDeploymentPolicyAlways ControllerDeploymentPolicy = "Always"
// ControllerDeploymentPolicyAlwaysExceptNoShoots specifies that the controller shall be deployed always, independent of
// whether another resource requires it, but only when the respective seed has at least one shoot.
ControllerDeploymentPolicyAlwaysExceptNoShoots ControllerDeploymentPolicy = "AlwaysExceptNoShoots"
)