kubernetes

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v0.0.0-...-74dfd9c Latest Latest Go to latest Published: Feb 1, 2022 License: Apache-2.0 Imports: 16 Imported by: 0

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Repository

github.com/coredns/ci

Documentation ¶

Index ¶

Constants
func CoreDNSPodIPs() ([]string, error)
func CorednsLogs() string
func DoIntegrationTest(tc test.Case, namespace string) (*dns.Msg, error)
func DoIntegrationTests(t *testing.T, testCases []test.Case, namespace string)
func FetchDockerContainerID(containerName string) (string, error)
func HasResourceRestarted(label string) (bool, error)
func Kubectl(args string) (result string, err error)
func LoadCorefile(corefile string) error
func LoadCorefileAndZonefile(corefile, zonefile string, restart bool) error
func LoadKubednsConfigmap(stubdata, upstreamdata string) error
func ParseDigResponse(r string) ([]*dns.Msg, error)
func ScrapeMetrics(t *testing.T) []byte
func StartClientPod(namespace string) error
func UpstreamServer(t *testing.T, zone, zoneFile string) (func(), *caddy.Instance, string)
func WaitForClientPodRecord(namespace string) error
func WaitNReady(maxWait, n int) error
func WaitReady(maxWait int) error

Constants ¶

View Source

const (

	// KubednsConfigmap is the header used for defining the kube-dns configmap
	KubednsConfigmap = `apiVersion: v1
kind: ConfigMap
metadata:
  name: kube-dns
  namespace: kube-system
data:
`

	// ExampleNet is an example upstream zone file
	ExampleNet = `` /* 178-byte string literal not displayed */

	CoreDNSLabel   = "k8s-app=kube-dns"
	APIServerLabel = "component=kube-apiserver"
)

configmap is the header used for defining the coredns configmap

Variables ¶

This section is empty.

Functions ¶

func CoreDNSPodIPs ¶

func CoreDNSPodIPs() ([]string, error)

CoreDNSPodIPs return the ips of all coredns pods

func CorednsLogs ¶

func CorednsLogs() string

CorednsLogs returns the current coredns log

func FetchDockerContainerID ¶

func FetchDockerContainerID(containerName string) (string, error)

FetchDockerContainerID fetches the docker container ID from the container name

func HasResourceRestarted ¶

func HasResourceRestarted(label string) (bool, error)

HasResourceRestarted verifies if any of the specified containers in the kube-system namespace has restarted.

func Kubectl ¶

func Kubectl(args string) (result string, err error)

Kubectl executes the kubectl command with the given arguments

func LoadCorefile ¶

func LoadCorefile(corefile string) error

LoadCorefile calls loadCorefileAndZonefile without a zone file

func LoadCorefileAndZonefile ¶

func LoadCorefileAndZonefile(corefile, zonefile string, restart bool) error

LoadCorefileAndZonefile constructs a configmap defining files for the corefile and zone, If restart is true, restarts the coredns pod to load the new configmap, and waits for the coredns pod to be ready.

func LoadKubednsConfigmap ¶

func LoadKubednsConfigmap(stubdata, upstreamdata string) error

func ParseDigResponse ¶

func ParseDigResponse(r string) ([]*dns.Msg, error)

ParseDigResponse parses dig-like command output and returns a dns.Msg

func ScrapeMetrics ¶

func ScrapeMetrics(t *testing.T) []byte

func StartClientPod ¶

func StartClientPod(namespace string) error

StartClientPod starts a dns client pod in the namespace

func UpstreamServer ¶

func UpstreamServer(t *testing.T, zone, zoneFile string) (func(), *caddy.Instance, string)

UpstreamServer starts a local instance of coredns with the given zone file

func WaitForClientPodRecord ¶

func WaitForClientPodRecord(namespace string) error

WaitForClientPodRecord waits for the client pod A record to be served by CoreDNS

func WaitNReady ¶

func WaitNReady(maxWait, n int) error

WaitReady waits for n corednses to be ready or times out after maxWait seconds with an error

func WaitReady ¶

func WaitReady(maxWait int) error

WaitReady waits for 1 coredns to be ready or times out after maxWait seconds with an error

Types ¶