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types.go
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types.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 shoot
import (
"context"
"net"
"time"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/operation/botanist/component"
"github.com/gardener/gardener/pkg/operation/botanist/controlplane/kubescheduler"
"github.com/gardener/gardener/pkg/operation/etcdencryption"
"github.com/gardener/gardener/pkg/operation/garden"
"github.com/Masterminds/semver"
autoscalingv1 "k8s.io/api/autoscaling/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// Builder is an object that builds Shoot objects.
type Builder struct {
shootObjectFunc func() (*gardencorev1beta1.Shoot, error)
cloudProfileFunc func(string) (*gardencorev1beta1.CloudProfile, error)
shootSecretFunc func(context.Context, client.Client, string, string) (*corev1.Secret, error)
projectName string
internalDomain *garden.Domain
defaultDomains []*garden.Domain
disableDNS bool
}
// Shoot is an object containing information about a Shoot cluster.
type Shoot struct {
Info *gardencorev1beta1.Shoot
Secret *corev1.Secret
CloudProfile *gardencorev1beta1.CloudProfile
SeedNamespace string
KubernetesMajorMinorVersion string
KubernetesVersion *semver.Version
DisableDNS bool
InternalClusterDomain string
ExternalClusterDomain *string
ExternalDomain *garden.Domain
WantsClusterAutoscaler bool
WantsVerticalPodAutoscaler bool
WantsAlertmanager bool
IgnoreAlerts bool
HibernationEnabled bool
KonnectivityTunnelEnabled bool
NodeLocalDNSEnabled bool
Networks *Networks
Components *Components
OperatingSystemConfigsMap map[string]OperatingSystemConfigs
Extensions map[string]Extension
InfrastructureStatus []byte
ControlPlaneStatus []byte
MachineDeployments []extensionsv1alpha1.MachineDeployment
ETCDEncryption *etcdencryption.EncryptionConfig
ResourceRefs map[string]autoscalingv1.CrossVersionObjectReference
}
// Components contains different components deployed in the Shoot cluster.
type Components struct {
Extensions *Extensions
ControlPlane *ControlPlane
ClusterIdentity component.Deployer
}
// ControlPlane contains references to K8S control plane components.
type ControlPlane struct {
KubeAPIServerService component.DeployWaiter
KubeAPIServerSNI component.DeployWaiter
KubeScheduler kubescheduler.KubeScheduler
}
// Extensions contains references to extension resources.
type Extensions struct {
DNS *DNS
Infrastructure Infrastructure
Network component.DeployMigrateWaiter
ContainerRuntime ContainerRuntime
}
// DNS contains references to internal and external DNSProvider and DNSEntry deployers.
type DNS struct {
ExternalOwner component.DeployWaiter
ExternalProvider component.DeployWaiter
ExternalEntry component.DeployWaiter
InternalOwner component.DeployWaiter
InternalProvider component.DeployWaiter
InternalEntry component.DeployWaiter
AdditionalProviders map[string]component.DeployWaiter
NginxOwner component.DeployWaiter
NginxEntry component.DeployWaiter
}
// Infrastructure contains references to an Infrastructure extension deployer and its generated
// provider status.
type Infrastructure interface {
component.DeployWaiter
SetSSHPublicKey([]byte)
ProviderStatus() *runtime.RawExtension
NodesCIDR() *string
}
// ContainerRuntime contains references to a ContainerRuntime extension deployer.
type ContainerRuntime interface {
component.DeployMigrateWaiter
DeleteStaleResources(ctx context.Context) error
}
// Networks contains pre-calculated subnets and IP address for various components.
type Networks struct {
// Pods subnet
Pods *net.IPNet
// Services subnet
Services *net.IPNet
// APIServer is the ClusterIP of default/kubernetes Service
APIServer net.IP
// CoreDNS is the ClusterIP of kube-system/coredns Service
CoreDNS net.IP
}
// OperatingSystemConfigs contains operating system configs for the downloader script as well as for the original cloud config.
type OperatingSystemConfigs struct {
Downloader OperatingSystemConfig
Original OperatingSystemConfig
}
// OperatingSystemConfig contains the operating system config's name and data.
type OperatingSystemConfig struct {
Name string
Data OperatingSystemConfigData
}
// OperatingSystemConfigData contains the actual content, a command to load it and all units that
// shall be considered for restart on change.
type OperatingSystemConfigData struct {
Content string
Command *string
Units []string
}
// Extension contains information about the extension api resouce as well as configuration information.
type Extension struct {
extensionsv1alpha1.Extension
Timeout time.Duration
}
// IncompleteDNSConfigError is a custom error type.
type IncompleteDNSConfigError struct{}
// Error prints the error message of the IncompleteDNSConfigError error.
func (e *IncompleteDNSConfigError) Error() string {
return "unable to figure out which secret should be used for dns"
}
// IsIncompleteDNSConfigError returns true if the error indicates that not the DNS config is incomplete.
func IsIncompleteDNSConfigError(err error) bool {
_, ok := err.(*IncompleteDNSConfigError)
return ok
}