botanist

package
v0.0.0-...-44ba42e Latest Latest
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 Go to latest Published: Jun 20, 2019 License: Apache-2.0, BSD-2-Clause, MIT, + 1 more Imports: 63 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// DefaultInterval is the default interval for retry operations.
	DefaultInterval = 5 * time.Second

	// Provider is the kubernetes provider label.
	Provider = "provider"
	// KubernetesProvider is the 'kubernetes' value of the Provider label.
	KubernetesProvider = "kubernetes"

	// KubeAggregatorAutoManaged is the label whether an APIService is automanaged by kube-aggregator.
	KubeAggregatorAutoManaged = autoregister.AutoRegisterManagedLabel

	// MetadataNameField ist the `metadata.name` field for a field selector.
	MetadataNameField = "metadata.name"
)
View Source 
const (
	// DNSPurposeInternal is a constant for a DNS record used for the internal domain name.
	DNSPurposeInternal = "internal"
	// DNSPurposeExternal is a constant for a DNS record used for the external domain name.
	DNSPurposeExternal = "external"
)
View Source 
const DNSPurposeIngress = "ingress"

DNSPurposeIngress is a constant for a DNS record used for the ingress domain name.

View Source 
const InfrastructureDefaultTimeout = 10 * time.Minute

InfrastructureDefaultTimeout is the default timeout and defines how long Gardener should wait for a successful reconciliation of an infrastructure resource.

View Source 
const WorkerDefaultTimeout = 30 * time.Minute

WorkerDefaultTimeout is the default timeout and defines how long Gardener should wait for a successful reconciliation of a worker resource.

Variables

View Source 
var (
	// NotSystemComponent is a requirement that something doesn't have the GardenRole GardenRoleSystemComponent.
	NotSystemComponent = MustNewRequirement(common.GardenRole, selection.NotEquals, common.GardenRoleSystemComponent)
	// NotKubernetesProvider is a requirement that the Provider label of something is not KubernetesProvider.
	NotKubernetesProvider = MustNewRequirement(Provider, selection.NotEquals, KubernetesProvider)
	// NotKubeAggregatorAutoManaged is a requirement that something is not auto-managed by Kube-Aggregator.
	NotKubeAggregatorAutoManaged = MustNewRequirement(KubeAggregatorAutoManaged, selection.DoesNotExist)

	// NotSystemComponentSelector is a selector that excludes system components.
	NotSystemComponentSelector = labels.NewSelector().Add(NotSystemComponent)

	// NotSystemComponentListOptions are ListOptions that exclude system components.
	NotSystemComponentListOptions = client.ListOptions{
		LabelSelector: NotSystemComponentSelector,
	}

	// MutatingWebhookConfigurationCleanOptions is the delete selector for MutatingWebhookConfigurations.
	MutatingWebhookConfigurationCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// ValidatingWebhookConfigurationCleanOptions is the delete selector for ValidatingWebhookConfigurations.
	ValidatingWebhookConfigurationCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// CustomResourceDefinitionCleanOptions is the delete selector for CustomResources.
	CustomResourceDefinitionCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// DaemonSetCleanOptions is the delete selector for DaemonSets.
	DaemonSetCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// DeploymentCleanOptions is the delete selector for Deployments.
	DeploymentCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// StatefulSetCleanOptions is the delete selector for StatefulSets.
	StatefulSetCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// ServiceCleanOptions is the delete selector for Services.
	ServiceCleanOptions = ListOptions(client.UseListOptions(&client.ListOptions{
		LabelSelector: labels.NewSelector().Add(NotKubernetesProvider, NotSystemComponent),
	}))

	// NamespaceCleanOptions is the delete selector for Namespaces.
	NamespaceCleanOptions = ListOptions(client.UseListOptions(&client.ListOptions{
		LabelSelector: NotSystemComponentSelector,
		FieldSelector: fields.AndSelectors(
			fields.OneTermNotEqualSelector(MetadataNameField, metav1.NamespacePublic),
			fields.OneTermNotEqualSelector(MetadataNameField, metav1.NamespaceSystem),
			fields.OneTermNotEqualSelector(MetadataNameField, metav1.NamespaceDefault),
			fields.OneTermNotEqualSelector(MetadataNameField, corev1.NamespaceNodeLease),
		),
	}))

	// APIServiceCleanOptions is the delete selector for APIServices.
	APIServiceCleanOptions = ListOptions(client.UseListOptions(&client.ListOptions{
		LabelSelector: labels.NewSelector().Add(NotSystemComponent, NotKubeAggregatorAutoManaged),
	}))

	// CronJobCleanOptions is the delete selector for CronJobs.
	CronJobCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// IngressCleanOptions is the delete selector for Ingresses.
	IngressCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// JobCleanOptions is the delete selector for Jobs.
	JobCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// PodCleanOptions is the delete selector for Pods.
	PodCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// ReplicaSetCleanOptions is the delete selector for ReplicaSets.
	ReplicaSetCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// ReplicationControllerCleanOptions is the delete selector for ReplicationControllers.
	ReplicationControllerCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))

	// PersistentVolumeClaimCleanOptions is the delete selector for PersistentVolumeClaims.
	PersistentVolumeClaimCleanOptions = ListOptions(client.UseListOptions(&NotSystemComponentListOptions))
)
View Source 
var Finalize = func(o *CleanOptions) {
	o.Finalize = true
}

Finalize enforces finalizing objects before cleaning them.

View Source 
var Now = time.Now

Now determines the current time.

Functions

func AreObjectsRemaining 

func AreObjectsRemaining(err error) bool

AreObjectsRemaining checks whether the given error is an 'objects remaining error'.

func CheckObjectsRemaining 

func CheckObjectsRemaining(list runtime.Object) error

CheckObjectsRemaining checks if the given list is empty.

Iff it is not, returns a `NewObjectsRemaining` error with the remaining objects.

func CheckObjectsRemainingMatching 

func CheckObjectsRemainingMatching(
	ctx context.Context,
	c client.Client,
	list runtime.Object,
	opts ...client.ListOptionFunc,
) error

CheckObjectsRemainingMatching calls the client and checks if there are objects remaining matching the given opts.

func CleanMatching 

func CleanMatching(
	ctx context.Context,
	c client.Client,
	list runtime.Object,
	opts ...CleanOptionFunc,
) error

CleanMatching deletes all objects matching `deleteOpts`, then it checks if there are no objects left matching `checkOpts`.

func DeleteAll 

func DeleteAll(ctx context.Context, c client.Client, list runtime.Object, opts ...client.DeleteOptionFunc) error

DeleteAll calls delete for all objects in the given list.

Not found errors are being ignored.

func DeleteMatching 

func DeleteMatching(
	ctx context.Context,
	c client.Client,
	list runtime.Object,
	opts ...CleanOptionFunc,
) error

DeleteMatching issues DELETE calls to all remote objects that match the given selector.

If `finalize` is set, this also removes all finalizers from the matching objects before deleting them.

func FinalizeAll 

func FinalizeAll(ctx context.Context, c client.Client, list runtime.Object) error

FinalizeAll iterates over the given list and removes the finalizers the individual objects, if any.

func MustNewRequirement 

func MustNewRequirement(key string, op selection.Operator, vals ...string) labels.Requirement

MustNewRequirement creates a labels.Requirement with the given values and panics if there is an error.

func NewObjectsRemaining 

func NewObjectsRemaining(remaining []runtime.Object) error

NewObjectsRemaining returns a new error with the remaining objects.

func RemainingObjects 

func RemainingObjects(err error) []runtime.Object

RemainingObjects retrieves the remaining objects of an `AreObjectsRemaining` error.

If the error does not match `AreObjectsRemaining`, this returns nil.

func RetryCleanMatchingUntil 

func RetryCleanMatchingUntil(
	ctx context.Context,
	interval time.Duration,
	c client.Client,
	list runtime.Object,
	opts ...CleanOptionFunc,
) error

RetryCleanMatchingUntil repeatedly tries to `CleanMatching` objects.

Types

type Botanist 

type Botanist struct {
	*operation.Operation
	DefaultDomainSecret *corev1.Secret
	// contains filtered or unexported fields
}

Botanist is a struct which has methods that perform cloud-independent operations for a Shoot cluster.

func New 

func New(o *operation.Operation) (*Botanist, error)

New takes an operation object <o> and creates a new Botanist object. It checks whether the given Shoot DNS domain is covered by a default domain, and if so, it sets the <DefaultDomainSecret> attribute on the Botanist object.

func (*Botanist) CleanExtendedAPIs 

func (b *Botanist) CleanExtendedAPIs(ctx context.Context) error

CleanExtendedAPIs removes API extensions like CRDs and API services from the Shoot cluster.

func (*Botanist) CleanKubernetesResources 

func (b *Botanist) CleanKubernetesResources(ctx context.Context) error

CleanKubernetesResources deletes all the Kubernetes resources in the Shoot cluster other than those stored in the exceptions map. It will check whether all the Kubernetes resources in the Shoot cluster other than those stored in the exceptions map have been deleted. It will return an error in case it has not finished yet, and nil if all resources are gone.

func (*Botanist) CleanWebhooks 

func (b *Botanist) CleanWebhooks(ctx context.Context) error

CleanWebhooks deletes all Webhooks in the Shoot cluster that are not being managed by the addon manager.

func (*Botanist) DeleteBackupInfrastructure 

func (b *Botanist) DeleteBackupInfrastructure() error

DeleteBackupInfrastructure deletes the sets deletionTimestamp on the backupInfrastructure resource in the Garden namespace which is responsible for actual deletion of cloud resource for Shoot's backup infrastructure.

func (*Botanist) DeleteBackupNamespace 

func (b *Botanist) DeleteBackupNamespace() error

DeleteBackupNamespace deletes the namespace in the Seed cluster which holds the backup infrastructure state. The built-in garbage collection in Kubernetes will automatically delete all resources which belong to this namespace.

func (*Botanist) DeleteClusterAutoscaler 

func (b *Botanist) DeleteClusterAutoscaler() error

DeleteClusterAutoscaler deletes the cluster-autoscaler deployment in the Seed cluster which holds the Shoot's control plane.

func (*Botanist) DeleteDeprecatedCloudMetadataServiceNetworkPolicy 

func (b *Botanist) DeleteDeprecatedCloudMetadataServiceNetworkPolicy(ctx context.Context) error

DeleteDeprecatedCloudMetadataServiceNetworkPolicy deletes old DEPRECATED Shoot network policy that allows access to the meta-data service only from the cloud-controller-manager and the kube-controller-manager DEPRECATED. TODO: Remove this after several releases.

func (*Botanist) DeleteExtensionResources 

func (b *Botanist) DeleteExtensionResources(ctx context.Context) error

DeleteExtensionResources deletes all extension resources from the Shoot namespace in the Seed.

func (*Botanist) DeleteGardenSecrets 

func (b *Botanist) DeleteGardenSecrets() error

DeleteGardenSecrets deletes the Shoot-specific secrets from the project namespace in the Garden cluster. TODO: https://github.com/gardener/gardener/pull/353: This can be removed in a future version as we are now using owner references for the Garden secrets (also remove the actual invocation of the function in the deletion flow of a Shoot).

func (*Botanist) DeleteKubeAPIServer 

func (b *Botanist) DeleteKubeAPIServer() error

DeleteKubeAPIServer deletes the kube-apiserver deployment in the Seed cluster which holds the Shoot's control plane.

func (*Botanist) DeleteKubeAddonManager 

func (b *Botanist) DeleteKubeAddonManager() error

DeleteKubeAddonManager deletes the kube-addon-manager deployment in the Seed cluster which holds the Shoot's control plane. It needs to be deleted before trying to remove any resources in the Shoot cluster, otherwise it will automatically recreate them and block the infrastructure deletion.

func (*Botanist) DeleteNamespace 

func (b *Botanist) DeleteNamespace() error

DeleteNamespace deletes the namespace in the Seed cluster which holds the control plane components. The built-in garbage collection in Kubernetes will automatically delete all resources which belong to this namespace. This comprises volumes and load balancers as well.

func (*Botanist) DeleteOrphanEtcdMainPVC 

func (b *Botanist) DeleteOrphanEtcdMainPVC(ctx context.Context) error

DeleteOrphanEtcdMainPVC delete the orphan PVC associated with old etcd-main statefulsets as a result of migration in Release 0.22.0 (https://github.com/gardener/gardener/releases/tag/0.22.0).

func (*Botanist) DeleteSeedMonitoring 

func (b *Botanist) DeleteSeedMonitoring() error

DeleteSeedMonitoring will delete the monitoring stack from the Seed cluster to avoid phantom alerts during the deletion process. More precisely, the Alertmanager and Prometheus StatefulSets will be deleted.

func (*Botanist) DeployBackupInfrastructure 

func (b *Botanist) DeployBackupInfrastructure(ctx context.Context) error

DeployBackupInfrastructure creates a BackupInfrastructure resource into the project namespace of shoot on garden cluster. BackupInfrastructure controller acting on resource will actually create required cloud resources and updates the status.

func (*Botanist) DeployBackupNamespace 

func (b *Botanist) DeployBackupNamespace() error

DeployBackupNamespace creates a namespace in the Seed cluster from info in shoot object, which is used to deploy all the backup infrastructure realted resources for shoot cluster. Moreover, the terraform configuration and all the secrets will be stored as ConfigMaps/Secrets.

func (*Botanist) DeployCloudProviderSecret 

func (b *Botanist) DeployCloudProviderSecret() error

DeployCloudProviderSecret creates or updates the cloud provider secret in the Shoot namespace in the Seed cluster.

func (*Botanist) DeployClusterAutoscaler 

func (b *Botanist) DeployClusterAutoscaler() error

DeployClusterAutoscaler deploys the cluster-autoscaler into the Shoot namespace in the Seed cluster. It is responsible for automatically scaling the worker pools of the Shoot.

func (*Botanist) DeployDependencyWatchdog 

func (b *Botanist) DeployDependencyWatchdog(ctx context.Context) error

DeployDependencyWatchdog deploys the dependency watchdog to the Shoot namespace in the Seed.

func (*Botanist) DeployExtensionResources 

func (b *Botanist) DeployExtensionResources(ctx context.Context) error

DeployExtensionResources creates the `Extension` extension resource in the shoot namespace in the seed cluster. Gardener waits until an external controller did reconcile the cluster successfully.

func (*Botanist) DeployExternalDomainDNSRecord 

func (b *Botanist) DeployExternalDomainDNSRecord(ctx context.Context) error

DeployExternalDomainDNSRecord deploys the DNS record for the external cluster domain.

func (*Botanist) DeployInfrastructure 

func (b *Botanist) DeployInfrastructure(ctx context.Context) error

DeployInfrastructure creates the `Infrastructure` extension resource in the shoot namespace in the seed cluster. Gardener waits until an external controller did reconcile the cluster successfully.

func (*Botanist) DeployInternalDomainDNSRecord 

func (b *Botanist) DeployInternalDomainDNSRecord(ctx context.Context) error

DeployInternalDomainDNSRecord deploys the DNS record for the internal cluster domain.

func (*Botanist) DeployNamespace 

func (b *Botanist) DeployNamespace() error

DeployNamespace creates a namespace in the Seed cluster which is used to deploy all the control plane components for the Shoot cluster. Moreover, the cloud provider configuration and all the secrets will be stored as ConfigMaps/Secrets.

func (*Botanist) DeploySecrets 

func (b *Botanist) DeploySecrets() error

DeploySecrets creates a CA certificate for the Shoot cluster and uses it to sign the server certificate used by the kube-apiserver, and all client certificates used for communcation. It also creates RSA key pairs for SSH connections to the nodes/VMs and for the VPN tunnel. Moreover, basic authentication credentials are computed which will be used to secure the Ingress resources and the kube-apiserver itself. Server certificates for the exposed monitoring endpoints (via Ingress) are generated as well.

func (*Botanist) DeploySeedLogging 

func (b *Botanist) DeploySeedLogging() error

DeploySeedLogging will install the Helm release "seed-bootstrap/charts/elastic-kibana-curator" in the Seed clusters.

func (*Botanist) DeploySeedMonitoring 

func (b *Botanist) DeploySeedMonitoring() error

DeploySeedMonitoring will install the Helm release "seed-monitoring" in the Seed clusters. It comprises components to monitor the Shoot cluster whose control plane runs in the Seed cluster.

func (*Botanist) DeployWorker 

func (b *Botanist) DeployWorker(ctx context.Context) error

DeployWorker creates the `Worker` extension resource in the shoot namespace in the seed cluster. Gardener waits until an external controller did reconcile the resource successfully.

func (*Botanist) DestroyExternalDomainDNSRecord 

func (b *Botanist) DestroyExternalDomainDNSRecord(ctx context.Context) error

DestroyExternalDomainDNSRecord destroys the DNS record for the external cluster domain.

func (*Botanist) DestroyInfrastructure 

func (b *Botanist) DestroyInfrastructure(ctx context.Context) error

DestroyInfrastructure deletes the `Infrastructure` extension resource in the shoot namespace in the seed cluster, and it waits for a maximum of 10m until it is deleted.

func (*Botanist) DestroyIngressDNSRecord 

func (b *Botanist) DestroyIngressDNSRecord(ctx context.Context) error

DestroyIngressDNSRecord destroys the nginx-ingress resources created by Terraform.

func (*Botanist) DestroyInternalDomainDNSRecord 

func (b *Botanist) DestroyInternalDomainDNSRecord(ctx context.Context) error

DestroyInternalDomainDNSRecord destroys the DNS record for the internal cluster domain.

func (*Botanist) DestroyWorker 

func (b *Botanist) DestroyWorker(ctx context.Context) error

DestroyWorker deletes the `Worker` extension resource in the shoot namespace in the seed cluster, and it waits for a maximum of 30m until it is deleted.

func (*Botanist) EnsureIngressDNSRecord 

func (b *Botanist) EnsureIngressDNSRecord(ctx context.Context) error

EnsureIngressDNSRecord creates the respective wildcard DNS record for the nginx-ingress-controller.

func (*Botanist) GenerateKubeLegoConfig 

func (b *Botanist) GenerateKubeLegoConfig() (map[string]interface{}, error)

GenerateKubeLegoConfig generates the values which are required to render the chart of kube-lego properly.

func (*Botanist) GenerateKubernetesDashboardConfig 

func (b *Botanist) GenerateKubernetesDashboardConfig() (map[string]interface{}, error)

GenerateKubernetesDashboardConfig generates the values which are required to render the chart of the kubernetes-dashboard properly.

func (*Botanist) HealthChecks 

func (b *Botanist) HealthChecks(initializeShootClients func() error, thresholdMappings map[gardencorev1alpha1.ConditionType]time.Duration, apiserverAvailability, controlPlane, nodes, systemComponents gardencorev1alpha1.Condition) (gardencorev1alpha1.Condition, gardencorev1alpha1.Condition, gardencorev1alpha1.Condition, gardencorev1alpha1.Condition)

HealthChecks conducts the health checks on all the given conditions.

func (*Botanist) HibernateControlPlane 

func (b *Botanist) HibernateControlPlane(ctx context.Context) error

HibernateControlPlane hibernates the entire control plane if the shoot shall be hibernated.

func (*Botanist) MonitoringHealthChecks 

func (b *Botanist) MonitoringHealthChecks(checker *HealthChecker, inactiveAlerts gardencorev1alpha1.Condition) gardencorev1alpha1.Condition

MonitoringHealthChecks performs the monitoring related health checks.

func (*Botanist) PerformGarbageCollectionSeed 

func (b *Botanist) PerformGarbageCollectionSeed() error

PerformGarbageCollectionSeed performs garbage collection in the Shoot namespace in the Seed cluster, i.e., it deletes old machine sets which have a desired=actual=0 replica count.

func (*Botanist) PerformGarbageCollectionShoot 

func (b *Botanist) PerformGarbageCollectionShoot() error

PerformGarbageCollectionShoot performs garbage collection in the kube-system namespace in the Shoot cluster, i.e., it deletes evicted pods (mitigation for https://github.com/kubernetes/kubernetes/issues/55051).

func (*Botanist) RefreshCloudControllerManagerChecksums 

func (b *Botanist) RefreshCloudControllerManagerChecksums() error

RefreshCloudControllerManagerChecksums updates the cloud provider checksum in the cloud-controller-manager pod spec template.

func (*Botanist) RefreshKubeControllerManagerChecksums 

func (b *Botanist) RefreshKubeControllerManagerChecksums() error

RefreshKubeControllerManagerChecksums updates the cloud provider checksum in the kube-controller-manager pod spec template.

func (*Botanist) RegisterAsSeed 

func (b *Botanist) RegisterAsSeed(protected, visible *bool, minimumVolumeSize *string, blockCIDRs []gardencorev1alpha1.CIDR) error

RegisterAsSeed registers a Shoot cluster as a Seed in the Garden cluster.

func (*Botanist) RequiredExtensionsExist 

func (b *Botanist) RequiredExtensionsExist() error

RequiredExtensionsExist checks whether all required extensions needed for an shoot operation exist.

func (*Botanist) SyncShootCredentialsToGarden 

func (b *Botanist) SyncShootCredentialsToGarden() error

SyncShootCredentialsToGarden copies the kubeconfig generated for the user, the SSH keypair to the project namespace in the Garden cluster and the monitoring credentials for the user-facing monitoring stack are also copied.

func (*Botanist) UnregisterAsSeed 

func (b *Botanist) UnregisterAsSeed() error

UnregisterAsSeed unregisters a Shoot cluster as a Seed in the Garden cluster.

func (*Botanist) WaitForControllersToBeActive 

func (b *Botanist) WaitForControllersToBeActive() error

WaitForControllersToBeActive checks whether the kube-controller-manager and the cloud-controller-manager have recently written to the Endpoint object holding the leader information. If yes, they are active.

func (*Botanist) WaitUntilBackupInfrastructureReconciled 

func (b *Botanist) WaitUntilBackupInfrastructureReconciled(ctx context.Context) error

WaitUntilBackupInfrastructureReconciled waits until the backup infrastructure within the garden cluster has been reconciled.

func (*Botanist) WaitUntilBackupNamespaceDeleted 

func (b *Botanist) WaitUntilBackupNamespaceDeleted(ctx context.Context) error

WaitUntilBackupNamespaceDeleted waits until the namespace for the backup of Shoot cluster within the Seed cluster is deleted.

func (*Botanist) WaitUntilClusterAutoscalerDeleted 

func (b *Botanist) WaitUntilClusterAutoscalerDeleted(ctx context.Context) error

WaitUntilClusterAutoscalerDeleted waits until the cluster-autoscaler deployment within the Seed cluster has been deleted.

func (*Botanist) WaitUntilEtcdReady 

func (b *Botanist) WaitUntilEtcdReady(ctx context.Context) error

WaitUntilEtcdReady waits until the etcd statefulsets indicate readiness in their statuses.

func (*Botanist) WaitUntilEtcdStatefulsetDeleted 

func (b *Botanist) WaitUntilEtcdStatefulsetDeleted(ctx context.Context, role string) error

WaitUntilEtcdStatefulsetDeleted waits until the etcd statefulsets get deleted.

func (*Botanist) WaitUntilExtensionResourcesDeleted 

func (b *Botanist) WaitUntilExtensionResourcesDeleted(ctx context.Context) error

WaitUntilExtensionResourcesDeleted waits until all extension resources are gone or the context is cancelled.

func (*Botanist) WaitUntilExtensionResourcesReady 

func (b *Botanist) WaitUntilExtensionResourcesReady(ctx context.Context) error

WaitUntilExtensionResourcesReady waits until all extension resources report `Succeeded` in their last operation state. The state must be reported before the passed context is cancelled or an extension's timeout has been reached. As soon as one timeout has been overstepped the function returns an error, further waits on extensions will be aborted.

func (*Botanist) WaitUntilInfrastructureDeleted 

func (b *Botanist) WaitUntilInfrastructureDeleted(ctx context.Context) error

WaitUntilInfrastructureDeleted waits until the infrastructure resource has been deleted.

func (*Botanist) WaitUntilInfrastructureReady 

func (b *Botanist) WaitUntilInfrastructureReady(ctx context.Context) error

WaitUntilInfrastructureReady waits until the infrastructure resource has been reconciled successfully.

func (*Botanist) WaitUntilKubeAPIServerReady 

func (b *Botanist) WaitUntilKubeAPIServerReady(ctx context.Context) error

WaitUntilKubeAPIServerReady waits until the kube-apiserver pod(s) indicate readiness in their statuses.

func (*Botanist) WaitUntilKubeAPIServerServiceIsReady 

func (b *Botanist) WaitUntilKubeAPIServerServiceIsReady(ctx context.Context) error

WaitUntilKubeAPIServerServiceIsReady waits until the external load balancer of the kube-apiserver has been created (i.e., its ingress information has been updated in the service status).

func (*Botanist) WaitUntilKubeAddonManagerDeleted 

func (b *Botanist) WaitUntilKubeAddonManagerDeleted(ctx context.Context) error

WaitUntilKubeAddonManagerDeleted waits until the kube-addon-manager deployment within the Seed cluster has been deleted.

func (*Botanist) WaitUntilNodesDeleted 

func (b *Botanist) WaitUntilNodesDeleted(ctx context.Context) error

WaitUntilNodesDeleted waits until no nodes exist in the shoot cluster anymore.

func (*Botanist) WaitUntilSeedNamespaceDeleted 

func (b *Botanist) WaitUntilSeedNamespaceDeleted(ctx context.Context) error

WaitUntilSeedNamespaceDeleted waits until the namespace of the Shoot cluster within the Seed cluster is deleted.

func (*Botanist) WaitUntilVPNConnectionExists 

func (b *Botanist) WaitUntilVPNConnectionExists(ctx context.Context) error

WaitUntilVPNConnectionExists waits until a port forward connection to the vpn-shoot pod in the kube-system namespace of the Shoot cluster can be established.

func (*Botanist) WaitUntilWorkerDeleted 

func (b *Botanist) WaitUntilWorkerDeleted(ctx context.Context) error

WaitUntilWorkerDeleted waits until the worker extension resource has been deleted.

func (*Botanist) WaitUntilWorkerReady 

func (b *Botanist) WaitUntilWorkerReady(ctx context.Context) error

WaitUntilWorkerReady waits until the worker extension resource has been successfully reconciled.

func (*Botanist) WakeUpControlPlane 

func (b *Botanist) WakeUpControlPlane(ctx context.Context) error

WakeUpControlPlane scales the replicas to 1 for the following deployments which are needed in case of shoot deletion: * etcd-events * etcd-main * kube-apiserver * cloud-controller-manager * kube-controller-manager * csi-controllers

type CleanOptionFunc 

type CleanOptionFunc func(*CleanOptions)

CleanOptionFunc is a function that modifies the given CleanOptions.

func DeleteOptions 

func DeleteOptions(deleteOpts ...client.DeleteOptionFunc) CleanOptionFunc

DeleteOptions creates a CleanOptionFunc that adds all the DeleteOptionFuncs to the CleanOptions.

func ListOptions 

func ListOptions(listOpts ...client.ListOptionFunc) CleanOptionFunc

ListOptions creates a CleanOptionFunc that adds all the ListOptionFuncs to the CleanOptions.

type CleanOptions 

type CleanOptions struct {
	Finalize   bool
	DeleteOpts []client.DeleteOptionFunc
	ListOpts   []client.ListOptionFunc
}

CleanOptions are options for cleaning a set of resources. TODO: Adapt / remove this once `DeleteCollection` is in the controller-runtime.

func (*CleanOptions) ApplyOptions 

func (o *CleanOptions) ApplyOptions(optFuncs []CleanOptionFunc)

ApplyOptions applies the given optFuncs to the CleanOptions.

type HealthChecker 

type HealthChecker struct {
	// contains filtered or unexported fields
}

HealthChecker contains the condition thresholds.

func NewHealthChecker 

func NewHealthChecker(conditionThresholds map[gardencorev1alpha1.ConditionType]time.Duration) *HealthChecker

NewHealthChecker creates a new health checker.

func (*HealthChecker) CheckClusterNodes 

func (b *HealthChecker) CheckClusterNodes(
	namespace string,
	condition gardencorev1alpha1.Condition,
	nodeLister kutil.NodeLister,
	machineDeploymentLister kutil.MachineDeploymentLister,
) (*gardencorev1alpha1.Condition, error)

CheckClusterNodes checks whether cluster nodes in the given listers are complete and healthy.

func (*HealthChecker) CheckControlPlane 

func (b *HealthChecker) CheckControlPlane(
	shoot *gardenv1beta1.Shoot,
	namespace string,
	seedCloudProvider gardenv1beta1.CloudProvider,
	condition gardencorev1alpha1.Condition,
	deploymentLister kutil.DeploymentLister,
	statefulSetLister kutil.StatefulSetLister,
	machineDeploymentLister kutil.MachineDeploymentLister,
) (*gardencorev1alpha1.Condition, error)

CheckControlPlane checks whether the control plane components in the given listers are complete and healthy.

func (*HealthChecker) CheckLoggingControlPlane 

func (b *HealthChecker) CheckLoggingControlPlane(
	namespace string,
	condition gardencorev1alpha1.Condition,
	deploymentLister kutil.DeploymentLister,
	statefulSetLister kutil.StatefulSetLister,
) (*gardencorev1alpha1.Condition, error)

CheckLoggingControlPlane checks whether the logging components in the given listers are complete and healthy.

func (*HealthChecker) CheckMonitoringControlPlane 

func (b *HealthChecker) CheckMonitoringControlPlane(
	namespace string,
	wantsAlertmanager bool,
	condition gardencorev1alpha1.Condition,
	deploymentLister kutil.DeploymentLister,
	statefulSetLister kutil.StatefulSetLister,
) (*gardencorev1alpha1.Condition, error)

CheckMonitoringControlPlane checks whether the monitoring in the given listers are complete and healthy.

func (*HealthChecker) CheckMonitoringSystemComponents 

func (b *HealthChecker) CheckMonitoringSystemComponents(
	namespace string,
	condition gardencorev1alpha1.Condition,
	daemonSetLister kutil.DaemonSetLister,
) (*gardencorev1alpha1.Condition, error)

CheckMonitoringSystemComponents checks whether the monitoring in the given listers are complete and healthy.

func (*HealthChecker) CheckOptionalAddonsSystemComponents 

func (b *HealthChecker) CheckOptionalAddonsSystemComponents(
	namespace string,
	condition gardencorev1alpha1.Condition,
	deploymentLister kutil.DeploymentLister,
	daemonSetLister kutil.DaemonSetLister,
) (*gardencorev1alpha1.Condition, error)

CheckOptionalAddonsSystemComponents checks whether the addons in the given listers are healthy.

func (*HealthChecker) CheckSystemComponents 

func (b *HealthChecker) CheckSystemComponents(
	namespace string,
	condition gardencorev1alpha1.Condition,
	deploymentLister kutil.DeploymentLister,
	daemonSetLister kutil.DaemonSetLister,
) (*gardencorev1alpha1.Condition, error)

CheckSystemComponents checks whether the system components in the given listers are complete and healthy.

func (*HealthChecker) FailedCondition 

func (b *HealthChecker) FailedCondition(condition gardencorev1alpha1.Condition, reason, message string) gardencorev1alpha1.Condition

FailedCondition returns a progressing or false condition depending on the progressing threshold.

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