multicluster

package
v1.2.0-beta.3 Latest Latest
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 Go to latest Published: Dec 21, 2021 License: Apache-2.0 Imports: 29 Imported by: 6

Documentation

Index

Constants

View Source 
const (
	// ClusterContextKey is the name of cluster using in client http context
	ClusterContextKey = contextKey("ClusterName")
	// ClusterLocalName specifies the local cluster
	ClusterLocalName = "local"
)

Variables

View Source 
var (
	// ErrClusterExists cluster already exists
	ErrClusterExists = ClusterManagementError(fmt.Errorf("cluster already exists"))
	// ErrReservedLocalClusterName reserved cluster name is used
	ErrReservedLocalClusterName = ClusterManagementError(fmt.Errorf("cluster name `local` is reserved for kubevela hub cluster"))
)
View Source 
var (
	// ClusterGatewaySecretNamespace the namespace where cluster-gateway secret locates
	ClusterGatewaySecretNamespace string
)

Functions

func ClusterNameInContext added in v1.2.0 

func ClusterNameInContext(ctx context.Context) string

ClusterNameInContext extract cluster name from context

func ContextInLocalCluster added in v1.2.0 

func ContextInLocalCluster(ctx context.Context) context.Context

ContextInLocalCluster create context in local cluster

func ContextWithClusterName 

func ContextWithClusterName(ctx context.Context, clusterName string) context.Context

ContextWithClusterName create context with multi-cluster by cluster name

func DetachCluster added in v1.2.0 

func DetachCluster(ctx context.Context, k8sClient client.Client, clusterName string) error

DetachCluster detach cluster by name, if cluster is using by application, it will return error

func FormatProxyURL 

func FormatProxyURL(clusterName, originalPath string) string

FormatProxyURL will format the request API path by the cluster gateway resources rule

func GetClusterGatewayService 

func GetClusterGatewayService(ctx context.Context, c client.Client) (*apiregistrationv1.ServiceReference, error)

GetClusterGatewayService get cluster gateway backend service reference if service is ready, service is returned and no error is returned if service exists but is not ready, both service and error are returned if service does not exist, only error is returned

func GetMulticlusterKubernetesClient added in v1.2.0 

func GetMulticlusterKubernetesClient() (client.Client, *rest.Config, error)

GetMulticlusterKubernetesClient get client with multicluster function enabled

func GetMutableClusterSecret added in v1.2.0 

func GetMutableClusterSecret(ctx context.Context, c client.Client, clusterName string) (*v1.Secret, error)

GetMutableClusterSecret retrieves the cluster secret and check if any application is using the cluster

func Initialize 

func Initialize(restConfig *rest.Config, autoUpgrade bool) (client.Client, error)

Initialize prepare multicluster environment by checking cluster gateway service in clusters and hack rest config to use cluster gateway if cluster gateway service is not ready, it will wait up to 5 minutes

func JoinClusterByKubeConfig added in v1.2.0 

func JoinClusterByKubeConfig(_ctx context.Context, k8sClient client.Client, kubeconfigPath string, clusterName string) (*api.Cluster, error)

JoinClusterByKubeConfig add child cluster by kubeconfig path, return cluster info and error

func ListExistingClusterSecrets added in v1.2.0 

func ListExistingClusterSecrets(ctx context.Context, c client.Client) ([]v1.Secret, error)

ListExistingClusterSecrets list existing cluster secrets

func NewClusterGatewayRoundTripperWrapperGenerator added in v1.2.0 

func NewClusterGatewayRoundTripperWrapperGenerator(clusterName string) transport.WrapperFunc

NewClusterGatewayRoundTripperWrapperGenerator create RoundTripper WrapperFunc that redirect requests to target cluster

func NewSecretModeMultiClusterRoundTripper 

func NewSecretModeMultiClusterRoundTripper(rt http.RoundTripper) http.RoundTripper

NewSecretModeMultiClusterRoundTripper will re-write the API path to one of the multi-cluster resource for a request if context has the value

func NewSecretModeMultiClusterRoundTripperForCluster added in v1.2.0 

func NewSecretModeMultiClusterRoundTripperForCluster(rt http.RoundTripper, clusterName string) http.RoundTripper

NewSecretModeMultiClusterRoundTripperForCluster will re-write the API path to the specific cluster

func RenameCluster added in v1.2.0 

func RenameCluster(ctx context.Context, k8sClient client.Client, oldClusterName string, newClusterName string) error

RenameCluster rename cluster

func ResourcesWithClusterName added in v1.2.0 

func ResourcesWithClusterName(clusterName string, objs ...*unstructured.Unstructured) []*unstructured.Unstructured

ResourcesWithClusterName set cluster name for resources

func UpgradeExistingClusterSecret added in v1.1.4 

func UpgradeExistingClusterSecret(ctx context.Context, c client.Client) error

UpgradeExistingClusterSecret upgrade outdated cluster secrets in v1.1.1 to latest

func WaitUntilClusterGatewayReady 

func WaitUntilClusterGatewayReady(ctx context.Context, c client.Client, maxRetry int, interval time.Duration) (svc *apiregistrationv1.ServiceReference, err error)

WaitUntilClusterGatewayReady wait cluster gateway service to be ready to serve

Types

type ClusterInfo added in v1.2.0 

type ClusterInfo struct {
	Nodes             *v1.NodeList
	WorkerNumber      int
	MasterNumber      int
	MemoryCapacity    resource.Quantity
	CPUCapacity       resource.Quantity
	PodCapacity       resource.Quantity
	MemoryAllocatable resource.Quantity
	CPUAllocatable    resource.Quantity
	PodAllocatable    resource.Quantity
	StorageClasses    *v14.StorageClassList
}

ClusterInfo describes the basic information of a cluster

func GetClusterInfo added in v1.2.0 

func GetClusterInfo(_ctx context.Context, k8sClient client.Client, clusterName string) (*ClusterInfo, error)

GetClusterInfo retrieves current cluster info from cluster

type ClusterManagementError added in v1.2.0 

type ClusterManagementError error

ClusterManagementError multicluster management error

type FakeClient added in v1.2.0 

type FakeClient struct {
	client.Client
	// contains filtered or unexported fields
}

FakeClient set default client and multicluster clients

func NewFakeClient added in v1.2.0 

func NewFakeClient(baseClient client.Client) *FakeClient

NewFakeClient create a new fake client

func (*FakeClient) AddCluster added in v1.2.0 

func (c *FakeClient) AddCluster(cluster string, cli client.Client)

AddCluster add cluster to client map

func (*FakeClient) Create added in v1.2.0 

func (c *FakeClient) Create(ctx context.Context, obj client.Object, opts ...client.CreateOption) error

Create saves the object obj in the Kubernetes cluster.

func (*FakeClient) Delete added in v1.2.0 

func (c *FakeClient) Delete(ctx context.Context, obj client.Object, opts ...client.DeleteOption) error

Delete deletes the given obj from Kubernetes cluster.

func (*FakeClient) DeleteAllOf added in v1.2.0 

func (c *FakeClient) DeleteAllOf(ctx context.Context, obj client.Object, opts ...client.DeleteAllOfOption) error

DeleteAllOf deletes all objects of the given type matching the given options.

func (*FakeClient) Get added in v1.2.0 

func (c *FakeClient) Get(ctx context.Context, key client.ObjectKey, obj client.Object) error

Get retrieves an obj for the given object key from the Kubernetes Cluster. obj must be a struct pointer so that obj can be updated with the response returned by the Server.

func (*FakeClient) List added in v1.2.0 

func (c *FakeClient) List(ctx context.Context, list client.ObjectList, opts ...client.ListOption) error

List retrieves list of objects for a given namespace and list options. On a successful call, Items field in the list will be populated with the result returned from the server.

func (*FakeClient) Patch added in v1.2.0 

func (c *FakeClient) Patch(ctx context.Context, obj client.Object, patch client.Patch, opts ...client.PatchOption) error

Patch patches the given obj in the Kubernetes cluster. obj must be a struct pointer so that obj can be updated with the content returned by the Server.

func (*FakeClient) Update added in v1.2.0 

func (c *FakeClient) Update(ctx context.Context, obj client.Object, opts ...client.UpdateOption) error

Update updates the given obj in the Kubernetes cluster. obj must be a struct pointer so that obj can be updated with the content returned by the Server.

Source Files

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