service

package
v1.19.8 Latest Latest
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 Go to latest Published: Feb 17, 2021 License: Apache-2.0 Imports: 34 Imported by: 37

Documentation

Index

Constants

View Source 
const (
	// RespondingTimeout is how long to wait for a service to be responding.
	RespondingTimeout = 2 * time.Minute

	// MaxNodesForEndpointsTests is the max number for testing endpoints.
	// Don't test with more than 3 nodes.
	// Many tests create an endpoint per node, in large clusters, this is
	// resource and time intensive.
	MaxNodesForEndpointsTests = 3

	// KubeProxyLagTimeout is the maximum time a kube-proxy daemon on a node is allowed
	// to not notice a Service update, such as type=NodePort.
	// TODO: This timeout should be O(10s), observed values are O(1m), 5m is very
	// liberal. Fix tracked in #20567.
	KubeProxyLagTimeout = 5 * time.Minute

	// KubeProxyEndpointLagTimeout is the maximum time a kube-proxy daemon on a node is allowed
	// to not notice an Endpoint update.
	KubeProxyEndpointLagTimeout = 30 * time.Second

	// LoadBalancerLagTimeoutDefault is the maximum time a load balancer is allowed to
	// not respond after creation.
	LoadBalancerLagTimeoutDefault = 2 * time.Minute

	// LoadBalancerLagTimeoutAWS is the delay between ELB creation and serving traffic
	// on AWS. A few minutes is typical, so use 10m.
	LoadBalancerLagTimeoutAWS = 10 * time.Minute

	// LoadBalancerCleanupTimeout is the time required by the loadbalancer to cleanup, proportional to numApps/Ing.
	// Bring the cleanup timeout back down to 5m once b/33588344 is resolved.
	LoadBalancerCleanupTimeout = 15 * time.Minute

	// LoadBalancerPollInterval is the interval value in which the loadbalancer polls.
	LoadBalancerPollInterval = 30 * time.Second

	// LargeClusterMinNodesNumber is the number of nodes which a large cluster consists of.
	LargeClusterMinNodesNumber = 100

	// TestTimeout is used for most polling/waiting activities
	TestTimeout = 60 * time.Second

	// ServiceEndpointsTimeout is the maximum time in which endpoints for the service should be created.
	ServiceEndpointsTimeout = 2 * time.Minute

	// ServiceReachabilityShortPollTimeout is the maximum time in which service must be reachable during polling.
	ServiceReachabilityShortPollTimeout = 2 * time.Minute
)

Variables

View Source 
var NodePortRange = utilnet.PortRange{Base: 30000, Size: 2768}

NodePortRange should match whatever the default/configured range is

Functions

func CleanupServiceResources 

func CleanupServiceResources(c clientset.Interface, loadBalancerName, region, zone string)

CleanupServiceResources cleans up service Type=LoadBalancer resources.

func CreateServiceForSimpleApp added in v1.19.0 

func CreateServiceForSimpleApp(c clientset.Interface, contPort, svcPort int, namespace, appName string) *v1.Service

CreateServiceForSimpleApp returns a service that selects/exposes pods (send -1 ports if no exposure needed) with an app label.

func CreateServiceForSimpleAppWithPods added in v1.19.0 

func CreateServiceForSimpleAppWithPods(c clientset.Interface, contPort int, svcPort int, namespace, appName string, podSpec func(n v1.Node) v1.PodSpec, count int, block bool) (*v1.Service, error)

CreateServiceForSimpleAppWithPods is a convenience wrapper to create a service and its matching pods all at once.

func CreateServiceSpec 

func CreateServiceSpec(serviceName, externalName string, isHeadless bool, selector map[string]string) *v1.Service

CreateServiceSpec returns a Service object for testing.

func GetIngressPoint 

func GetIngressPoint(ing *v1.LoadBalancerIngress) string

GetIngressPoint returns a host on which ingress serves.

func GetServiceLoadBalancerCreationTimeout 

func GetServiceLoadBalancerCreationTimeout(cs clientset.Interface) time.Duration

GetServiceLoadBalancerCreationTimeout returns a timeout value for creating a load balancer of a service.

func GetServiceLoadBalancerPropagationTimeout added in v1.19.0 

func GetServiceLoadBalancerPropagationTimeout(cs clientset.Interface) time.Duration

GetServiceLoadBalancerPropagationTimeout returns a timeout value for propagating a load balancer of a service.

func GetServicesProxyRequest 

func GetServicesProxyRequest(c clientset.Interface, request *restclient.Request) (*restclient.Request, error)

GetServicesProxyRequest returns a request for a service proxy.

func TestReachableHTTP added in v1.17.0 

func TestReachableHTTP(host string, port int, timeout time.Duration)

TestReachableHTTP tests that the given host serves HTTP on the given port.

func TestReachableHTTPWithRetriableErrorCodes added in v1.17.0 

func TestReachableHTTPWithRetriableErrorCodes(host string, port int, retriableErrCodes []int, timeout time.Duration)

TestReachableHTTPWithRetriableErrorCodes tests that the given host serves HTTP on the given port with the given retriableErrCodes.

func UpdateService 

func UpdateService(c clientset.Interface, namespace, serviceName string, update func(*v1.Service)) (*v1.Service, error)

UpdateService fetches a service, calls the update function on it, and then attempts to send the updated service. It retries up to 2 times in the face of timeouts and conflicts.

func WaitForServiceDeletedWithFinalizer 

func WaitForServiceDeletedWithFinalizer(cs clientset.Interface, namespace, name string)

WaitForServiceDeletedWithFinalizer waits for the service with finalizer to be deleted.

func WaitForServiceUpdatedWithFinalizer 

func WaitForServiceUpdatedWithFinalizer(cs clientset.Interface, namespace, name string, hasFinalizer bool)

WaitForServiceUpdatedWithFinalizer waits for the service to be updated to have or don't have a finalizer.

Types

type TestJig 

type TestJig struct {
	Client    clientset.Interface
	Namespace string
	Name      string
	ID        string
	Labels    map[string]string
}

TestJig is a test jig to help service testing.

func NewTestJig 

func NewTestJig(client clientset.Interface, namespace, name string) *TestJig

NewTestJig allocates and inits a new TestJig.

func (*TestJig) AddRCAntiAffinity 

func (j *TestJig) AddRCAntiAffinity(rc *v1.ReplicationController)

AddRCAntiAffinity adds AntiAffinity to the given ReplicationController.

func (*TestJig) ChangeServiceNodePort added in v1.17.0 

func (j *TestJig) ChangeServiceNodePort(initial int) (*v1.Service, error)

ChangeServiceNodePort changes node ports of the given service.

func (*TestJig) ChangeServiceType 

func (j *TestJig) ChangeServiceType(newType v1.ServiceType, timeout time.Duration) error

ChangeServiceType updates the given service's ServiceType to the given newType.

func (*TestJig) CheckServiceReachability 

func (j *TestJig) CheckServiceReachability(svc *v1.Service, pod *v1.Pod) error

CheckServiceReachability ensures that request are served by the services. Only supports Services with type ClusterIP, NodePort and ExternalName.

func (*TestJig) CreateExternalNameService added in v1.17.0 

func (j *TestJig) CreateExternalNameService(tweak func(svc *v1.Service)) (*v1.Service, error)

CreateExternalNameService creates a new ExternalName type Service based on the j's defaults. Callers can provide a function to tweak the Service object before it is created.

func (*TestJig) CreateLoadBalancerService 

func (j *TestJig) CreateLoadBalancerService(timeout time.Duration, tweak func(svc *v1.Service)) (*v1.Service, error)

CreateLoadBalancerService creates a loadbalancer service and waits for it to acquire an ingress IP.

func (*TestJig) CreateOnlyLocalLoadBalancerService 

func (j *TestJig) CreateOnlyLocalLoadBalancerService(timeout time.Duration, createPod bool,
	tweak func(svc *v1.Service)) (*v1.Service, error)

CreateOnlyLocalLoadBalancerService creates a loadbalancer service with ExternalTrafficPolicy set to Local and waits for it to acquire an ingress IP. If createPod is true, it also creates an RC with 1 replica of the standard netexec container used everywhere in this test.

func (*TestJig) CreateOnlyLocalNodePortService 

func (j *TestJig) CreateOnlyLocalNodePortService(createPod bool) (*v1.Service, error)

CreateOnlyLocalNodePortService creates a NodePort service with ExternalTrafficPolicy set to Local and sanity checks its nodePort. If createPod is true, it also creates an RC with 1 replica of the standard netexec container used everywhere in this test.

func (*TestJig) CreatePDB added in v1.17.0 

func (j *TestJig) CreatePDB(rc *v1.ReplicationController) (*policyv1beta1.PodDisruptionBudget, error)

CreatePDB returns a PodDisruptionBudget for the given ReplicationController, or returns an error if a PodDisruptionBudget isn't ready

func (*TestJig) CreateSCTPServiceWithPort added in v1.19.0 

func (j *TestJig) CreateSCTPServiceWithPort(tweak func(svc *v1.Service), port int32) (*v1.Service, error)

CreateSCTPServiceWithPort creates a new SCTP Service with given port based on the j's defaults. Callers can provide a function to tweak the Service object before it is created.

func (*TestJig) CreateServicePods 

func (j *TestJig) CreateServicePods(replica int) error

CreateServicePods creates a replication controller with the label same as service. Service listens to HTTP.

func (*TestJig) CreateTCPService added in v1.17.0 

func (j *TestJig) CreateTCPService(tweak func(svc *v1.Service)) (*v1.Service, error)

CreateTCPService creates a new TCP Service based on the j's defaults. Callers can provide a function to tweak the Service object before it is created.

func (*TestJig) CreateTCPServiceWithPort 

func (j *TestJig) CreateTCPServiceWithPort(tweak func(svc *v1.Service), port int32) (*v1.Service, error)

CreateTCPServiceWithPort creates a new TCP Service with given port based on the j's defaults. Callers can provide a function to tweak the Service object before it is created.

func (*TestJig) CreateTCPUDPServicePods added in v1.17.0 

func (j *TestJig) CreateTCPUDPServicePods(replica int) error

CreateTCPUDPServicePods creates a replication controller with the label same as service. Service listens to TCP and UDP.

func (*TestJig) CreateUDPService added in v1.17.0 

func (j *TestJig) CreateUDPService(tweak func(svc *v1.Service)) (*v1.Service, error)

CreateUDPService creates a new UDP Service based on the j's defaults. Callers can provide a function to tweak the Service object before it is created.

func (*TestJig) GetEndpointNodeNames added in v1.17.0 

func (j *TestJig) GetEndpointNodeNames() (sets.String, error)

GetEndpointNodeNames returns a string set of node names on which the endpoints of the given Service are running.

func (*TestJig) GetEndpointNodes 

func (j *TestJig) GetEndpointNodes() (map[string][]string, error)

GetEndpointNodes returns a map of nodenames:external-ip on which the endpoints of the Service are running.

func (*TestJig) GetEndpointNodesWithIP added in v1.19.0 

func (j *TestJig) GetEndpointNodesWithIP(addressType v1.NodeAddressType) (map[string][]string, error)

GetEndpointNodesWithIP returns a map of nodenames:<ip of given type> on which the endpoints of the Service are running.

func (*TestJig) ListNodesWithEndpoint added in v1.19.0 

func (j *TestJig) ListNodesWithEndpoint() ([]v1.Node, error)

ListNodesWithEndpoint returns a list of nodes on which the endpoints of the given Service are running.

func (*TestJig) Run added in v1.17.0 

func (j *TestJig) Run(tweak func(rc *v1.ReplicationController)) (*v1.ReplicationController, error)

Run creates a ReplicationController and Pod(s) and waits for the Pod(s) to be running. Callers can provide a function to tweak the RC object before it is created.

func (*TestJig) Scale 

func (j *TestJig) Scale(replicas int) error

Scale scales pods to the given replicas

func (*TestJig) UpdateService 

func (j *TestJig) UpdateService(update func(*v1.Service)) (*v1.Service, error)

UpdateService fetches a service, calls the update function on it, and then attempts to send the updated service. It tries up to 3 times in the face of timeouts and conflicts.

func (*TestJig) WaitForEndpointOnNode 

func (j *TestJig) WaitForEndpointOnNode(nodeName string) error

WaitForEndpointOnNode waits for a service endpoint on the given node.

func (*TestJig) WaitForLoadBalancer added in v1.17.0 

func (j *TestJig) WaitForLoadBalancer(timeout time.Duration) (*v1.Service, error)

WaitForLoadBalancer waits the given service to have a LoadBalancer, or returns an error after the given timeout

func (*TestJig) WaitForLoadBalancerDestroy added in v1.17.0 

func (j *TestJig) WaitForLoadBalancerDestroy(ip string, port int, timeout time.Duration) (*v1.Service, error)

WaitForLoadBalancerDestroy waits the given service to destroy a LoadBalancer, or returns an error after the given timeout

func (*TestJig) WaitForNewIngressIP added in v1.17.0 

func (j *TestJig) WaitForNewIngressIP(existingIP string, timeout time.Duration) (*v1.Service, error)

WaitForNewIngressIP waits for the given service to get a new ingress IP, or returns an error after the given timeout

Source Files

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