network

Documentation

Overview

Package network are the end-to-end tests for Kubernetes networking.

Index

• Constants
• func CheckSCTPModuleLoadedOnNodes(ctx context.Context, f *framework.Framework, nodes *v1.NodeList) bool
• func DescribeSvc(ns string)
• func GetHTTPContent(host string, port int, timeout time.Duration, url string) (string, error)
• func GetHTTPContentFromTestContainer(ctx context.Context, config *e2enetwork.NetworkingTestConfig, host string, ...) (string, error)
• func StartServeHostnameService(ctx context.Context, c clientset.Interface, svc *v1.Service, ns string, ...) ([]string, string, error)
• func StopServeHostnameService(ctx context.Context, clientset clientset.Interface, ns, name string) error
• func TestHTTPHealthCheckNodePort(host string, port int, request string, timeout time.Duration, ...) error
• type IPerf2EnhancedCSVResults
  • func ParseIPerf2EnhancedResultsFromCSV(output string) (*IPerf2EnhancedCSVResults, error)
• type IPerf2NodeToNodeCSVResults
• type IPerfCSVResult
  • func NewIPerf(csvLine string) (*IPerfCSVResult, error)
• type IPerfResults
  • func (i *IPerfResults) Add(ipr *IPerfCSVResult)
  • func (i *IPerfResults) ToTSV() string
• type StrSlice
• type TestFixture
  • func NewServerTest(client clientset.Interface, namespace string, serviceName string) *TestFixture
  • func (t *TestFixture) BuildServiceSpec() *v1.Service
  • func (t *TestFixture) Cleanup() []error
  • func (t *TestFixture) CreateRC(rc *v1.ReplicationController) (*v1.ReplicationController, error)
  • func (t *TestFixture) CreateService(service *v1.Service) (*v1.Service, error)
  • func (t *TestFixture) DeleteService(serviceName string) error
• type UDPPokeParams
• type UDPPokeResult
• type UDPPokeStatus

Constants

const (

	// AffinityTimeout is the maximum time that CheckAffinity is allowed to take; this
	// needs to be more than long enough for AffinityConfirmCount HTTP requests to
	// complete in a busy CI cluster, but shouldn't be too long since we will end up
	// waiting the entire time in the tests where affinity is not expected.
	AffinityTimeout = 2 * time.Minute

	// AffinityConfirmCount is the number of needed continuous requests to confirm that
	// affinity is enabled.
	AffinityConfirmCount = 15
)

const (

	// RespondingTimeout is how long to wait for a service to be responding.
	RespondingTimeout = 2 * time.Minute
)

Functions

func CheckSCTPModuleLoadedOnNodes

func CheckSCTPModuleLoadedOnNodes(ctx context.Context, f *framework.Framework, nodes *v1.NodeList) bool

CheckSCTPModuleLoadedOnNodes checks whether any node on the list has the sctp.ko module loaded For security reasons, and also to allow clusters to use userspace SCTP implementations, we require that just creating an SCTP Pod/Service/NetworkPolicy must not do anything that would cause the sctp kernel module to be loaded.

func DescribeSvc

func DescribeSvc(ns string)

DescribeSvc logs the output of kubectl describe svc for the given namespace

func GetHTTPContent

func GetHTTPContent(host string, port int, timeout time.Duration, url string) (string, error)

GetHTTPContent returns the content of the given url by HTTP.

func GetHTTPContentFromTestContainer

func GetHTTPContentFromTestContainer(ctx context.Context, config *e2enetwork.NetworkingTestConfig, host string, port int, timeout time.Duration, dialCmd string) (string, error)

GetHTTPContentFromTestContainer returns the content of the given url by HTTP via a test container.

func StartServeHostnameService

func StartServeHostnameService(ctx context.Context, c clientset.Interface, svc *v1.Service, ns string, replicas int) ([]string, string, error)

StartServeHostnameService creates a replication controller that serves its hostname and a service on top of it.

func StopServeHostnameService

func StopServeHostnameService(ctx context.Context, clientset clientset.Interface, ns, name string) error

StopServeHostnameService stops the given service.

func TestHTTPHealthCheckNodePort

func TestHTTPHealthCheckNodePort(host string, port int, request string, timeout time.Duration, expectSucceed bool, threshold int) error

TestHTTPHealthCheckNodePort tests a HTTP connection by the given request to the given host and port.

Types

type IPerf2EnhancedCSVResults

type IPerf2EnhancedCSVResults struct {
	Intervals []*IPerfCSVResult
	Total     *IPerfCSVResult
}

IPerf2EnhancedCSVResults models the results produced by iperf2 when run with the -e (--enhancedreports) flag.

func ParseIPerf2EnhancedResultsFromCSV

func ParseIPerf2EnhancedResultsFromCSV(output string) (*IPerf2EnhancedCSVResults, error)

ParseIPerf2EnhancedResultsFromCSV parses results from iperf2 when given the -e (--enhancedreports) and `--reportstyle C` options. Example output: 20201210141800.884,10.244.2.24,47880,10.96.114.79,6789,3,0.0-1.0,1677852672,13422821376 20201210141801.881,10.244.2.24,47880,10.96.114.79,6789,3,1.0-2.0,1980760064,15846080512 20201210141802.883,10.244.2.24,47880,10.96.114.79,6789,3,2.0-3.0,1886650368,15093202944 20201210141803.882,10.244.2.24,47880,10.96.114.79,6789,3,3.0-4.0,2035417088,16283336704 20201210141804.879,10.244.2.24,47880,10.96.114.79,6789,3,4.0-5.0,1922957312,15383658496 20201210141805.881,10.244.2.24,47880,10.96.114.79,6789,3,5.0-6.0,2095316992,16762535936 20201210141806.882,10.244.2.24,47880,10.96.114.79,6789,3,6.0-7.0,1741291520,13930332160 20201210141807.879,10.244.2.24,47880,10.96.114.79,6789,3,7.0-8.0,1862926336,14903410688 20201210141808.878,10.244.2.24,47880,10.96.114.79,6789,3,8.0-9.0,1821245440,14569963520 20201210141809.849,10.244.2.24,47880,10.96.114.79,6789,3,0.0-10.0,18752208896,15052492511

type IPerf2NodeToNodeCSVResults

type IPerf2NodeToNodeCSVResults struct {
	ServerNode string
	Results    map[string]*IPerf2EnhancedCSVResults
}

IPerf2NodeToNodeCSVResults models the results of running iperf2 between a daemonset of clients and a single server. The node name of the server is captured, along with a map of client node name to iperf2 results.

type IPerfCSVResult

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

IPerfCSVResult struct modelling an iperf record.... 20160314154239,172.17.0.3,34152,172.17.0.2,5001,3,0.0-10.0,33843707904,27074774092

func NewIPerf

func NewIPerf(csvLine string) (*IPerfCSVResult, error)

NewIPerf parses an IPerf CSV output line into an IPerfCSVResult.

type IPerfResults

type IPerfResults struct {
	BandwidthMap map[string]int64
}

IPerfResults is a struct that stores some IPerfCSVResult

func (*IPerfResults) Add

func (i *IPerfResults) Add(ipr *IPerfCSVResult)

Add adds a new result to the Results struct.

func (*IPerfResults) ToTSV

func (i *IPerfResults) ToTSV() string

ToTSV exports an easily readable tab delimited format of all IPerfResults.

type StrSlice

type StrSlice []string

StrSlice represents a string slice

type TestFixture

type TestFixture struct {
	ServiceName string
	Namespace   string
	Client      clientset.Interface

	TestID string
	Labels map[string]string

	Name  string
	Image string
	// contains filtered or unexported fields
}

TestFixture is a simple helper class to avoid too much boilerplate in tests

func NewServerTest

func NewServerTest(client clientset.Interface, namespace string, serviceName string) *TestFixture

NewServerTest creates a new TestFixture for the tests.

func (*TestFixture) BuildServiceSpec

func (t *TestFixture) BuildServiceSpec() *v1.Service

BuildServiceSpec builds default config for a service (which can then be changed)

func (*TestFixture) Cleanup

func (t *TestFixture) Cleanup() []error

Cleanup cleans all ReplicationControllers and Services which this object holds.

func (*TestFixture) CreateRC

func (t *TestFixture) CreateRC(rc *v1.ReplicationController) (*v1.ReplicationController, error)

CreateRC creates a replication controller and records it for cleanup.

func (*TestFixture) CreateService

func (t *TestFixture) CreateService(service *v1.Service) (*v1.Service, error)

CreateService creates a service, and record it for cleanup

func (*TestFixture) DeleteService

func (t *TestFixture) DeleteService(serviceName string) error

DeleteService deletes a service, and remove it from the cleanup list

type UDPPokeParams

type UDPPokeParams struct {
	Timeout  time.Duration
	Response string
}

UDPPokeParams is a struct for UDP poke parameters.

type UDPPokeResult

type UDPPokeResult struct {
	Status   UDPPokeStatus
	Error    error  // if there was any error
	Response []byte // if code != 0
}

UDPPokeResult is a struct for UDP poke result.

type UDPPokeStatus

type UDPPokeStatus string

UDPPokeStatus is string for representing UDP poke status.

const (
	// UDPSuccess is UDP poke status which is success.
	UDPSuccess UDPPokeStatus = "Success"
	// UDPError is UDP poke status which is error.
	UDPError UDPPokeStatus = "UnknownError"
	// UDPTimeout is UDP poke status which is timeout.
	UDPTimeout UDPPokeStatus = "TimedOut"
	// UDPRefused is UDP poke status which is connection refused.
	UDPRefused UDPPokeStatus = "ConnectionRefused"
	// UDPBadResponse is UDP poke status which is bad response.
	UDPBadResponse UDPPokeStatus = "BadResponse"
)