k8s

package
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 Go to latest Published: Oct 28, 2020 License: Apache-2.0 Imports: 39 Imported by: 0

Documentation

Overview

Package k8s provides common functionalities for interacting with a Kubernetes cluster in the context of infrastructure testing.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AddConfigContextForServiceAccountE 

func AddConfigContextForServiceAccountE(
	t testing.TestingT,
	kubectlOptions *KubectlOptions,
	contextName string,
	serviceAccountName string,
	token string,
) error

AddConfigContextForServiceAccountE will add a new config context that binds the ServiceAccount auth token to the Kubernetes cluster of the current config context.

func AreAllNodesReady 

func AreAllNodesReady(t testing.TestingT, options *KubectlOptions) bool

AreAllNodesReady checks if all nodes are ready in the Kubernetes cluster targeted by the current config context

func AreAllNodesReadyE 

func AreAllNodesReadyE(t testing.TestingT, options *KubectlOptions) (bool, error)

AreAllNodesReadyE checks if all nodes are ready in the Kubernetes cluster targeted by the current config context. If false, returns an error indicating the reason.

func CanIDo 

func CanIDo(t testing.TestingT, options *KubectlOptions, action authv1.ResourceAttributes) bool

CanIDo returns whether or not the provided action is allowed by the client configured by the provided kubectl option. This will fail if there are any errors accessing the kubernetes API (but not if the action is denied).

func CanIDoE 

func CanIDoE(t testing.TestingT, options *KubectlOptions, action authv1.ResourceAttributes) (bool, error)

CanIDoE returns whether or not the provided action is allowed by the client configured by the provided kubectl option. This will an error if there are problems accessing the kubernetes API (but not if the action is simply denied).

func CopyHomeKubeConfigToTemp 

func CopyHomeKubeConfigToTemp(t testing.TestingT) string

CopyHomeKubeConfigToTemp will copy the kubeconfig in the home directory to a temp file. This will fail the test if there are any errors.

func CopyHomeKubeConfigToTempE 

func CopyHomeKubeConfigToTempE(t testing.TestingT) (string, error)

CopyHomeKubeConfigToTempE will copy the kubeconfig in the home directory to a temp file.

func CreateNamespace 

func CreateNamespace(t testing.TestingT, options *KubectlOptions, namespaceName string)

CreateNamespace will create a new Kubernetes namespace on the cluster targeted by the provided options. This will fail the test if there is an error in creating the namespace.

func CreateNamespaceE 

func CreateNamespaceE(t testing.TestingT, options *KubectlOptions, namespaceName string) error

CreateNamespaceE will create a new Kubernetes namespace on the cluster targeted by the provided options.

func CreateServiceAccount 

func CreateServiceAccount(t testing.TestingT, options *KubectlOptions, serviceAccountName string)

CreateServiceAccount will create a new service account resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions. This will fail the test if there is an error.

func CreateServiceAccountE 

func CreateServiceAccountE(t testing.TestingT, options *KubectlOptions, serviceAccountName string) error

CreateServiceAccountE will create a new service account resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions.

func DeleteConfigContextE 

func DeleteConfigContextE(t testing.TestingT, contextName string) error

DeleteConfigContextE will remove the context specified at the provided name, and remove any clusters and authinfos that are orphaned as a result of it. The config path is either specified in the environment variable KUBECONFIG or at the user's home directory under `.kube/config`.

func DeleteConfigContextWithPathE 

func DeleteConfigContextWithPathE(t testing.TestingT, kubeConfigPath string, contextName string) error

DeleteConfigContextWithPathE will remove the context specified at the provided name, and remove any clusters and authinfos that are orphaned as a result of it.

func DeleteNamespace 

func DeleteNamespace(t testing.TestingT, options *KubectlOptions, namespaceName string)

DeleteNamespace will delete the requested namespace from the Kubernetes cluster targeted by the provided options. This will fail the test if there is an error in creating the namespace.

func DeleteNamespaceE 

func DeleteNamespaceE(t testing.TestingT, options *KubectlOptions, namespaceName string) error

DeleteNamespaceE will delete the requested namespace from the Kubernetes cluster targeted by the provided options.

func FindNodeHostnameE 

func FindNodeHostnameE(t testing.TestingT, node corev1.Node) (string, error)

Given a node, return the ip address, preferring the external IP

func FindNodePortE 

func FindNodePortE(service *corev1.Service, servicePort int32) (int32, error)

Given the desired servicePort, return the allocated nodeport

func GetAvailablePort 

func GetAvailablePort(t testing.TestingT) int

GetAvailablePort retrieves an available port on the host machine. This delegates the port selection to the golang net library by starting a server and then checking the port that the server is using. This will fail the test if it could not find an available port.

func GetAvailablePortE 

func GetAvailablePortE(t testing.TestingT) (int, error)

GetAvailablePortE retrieves an available port on the host machine. This delegates the port selection to the golang net library by starting a server and then checking the port that the server is using.

func GetClusterRole 

func GetClusterRole(t testing.TestingT, options *KubectlOptions, roleName string) *rbacv1.ClusterRole

GetClusterRole returns a Kubernetes ClusterRole resource with the given name. This will fail the test if there is an error.

func GetClusterRoleE 

func GetClusterRoleE(t testing.TestingT, options *KubectlOptions, roleName string) (*rbacv1.ClusterRole, error)

GetClusterRoleE returns a Kubernetes ClusterRole resource with the given name.

func GetDaemonSet 

func GetDaemonSet(t testing.TestingT, options *KubectlOptions, daemonSetName string) *appsv1.DaemonSet

GetDaemonSet returns a Kubernetes daemonset resource in the provided namespace with the given name. This will fail the test if there is an error.

func GetDaemonSetE 

func GetDaemonSetE(t testing.TestingT, options *KubectlOptions, daemonSetName string) (*appsv1.DaemonSet, error)

GetDaemonSetE returns a Kubernetes daemonset resource in the provided namespace with the given name.

func GetIngress 

func GetIngress(t testing.TestingT, options *KubectlOptions, ingressName string) *extensionsv1beta1.Ingress

GetIngress returns a Kubernetes Ingress resource in the provided namespace with the given name. This will fail the test if there is an error.

func GetIngressE 

func GetIngressE(t testing.TestingT, options *KubectlOptions, ingressName string) (*extensionsv1beta1.Ingress, error)

GetIngressE returns a Kubernetes Ingress resource in the provided namespace with the given name.

func GetKubeConfigPathE 

func GetKubeConfigPathE(t testing.TestingT) (string, error)

GetKubeConfigPathE determines which file path to use as the kubectl config path

func GetKubernetesClientE 

func GetKubernetesClientE(t testing.TestingT) (*kubernetes.Clientset, error)

GetKubernetesClientE returns a Kubernetes API client that can be used to make requests.

func GetKubernetesClientFromOptionsE 

func GetKubernetesClientFromOptionsE(t testing.TestingT, options *KubectlOptions) (*kubernetes.Clientset, error)

GetKubernetesClientFromOptionsE returns a Kubernetes API client given a configured KubectlOptions object.

func GetNamespace 

func GetNamespace(t testing.TestingT, options *KubectlOptions, namespaceName string) *corev1.Namespace

GetNamespace will query the Kubernetes cluster targeted by the provided options for the requested namespace. This will fail the test if there is an error in getting the namespace or if the namespace doesn't exist.

func GetNamespaceE 

func GetNamespaceE(t testing.TestingT, options *KubectlOptions, namespaceName string) (*corev1.Namespace, error)

GetNamespaceE will query the Kubernetes cluster targeted by the provided options for the requested namespace.

func GetNodes 

func GetNodes(t testing.TestingT, options *KubectlOptions) []corev1.Node

GetNodes queries Kubernetes for information about the worker nodes registered to the cluster. If anything goes wrong, the function will automatically fail the test.

func GetNodesByFilterE 

func GetNodesByFilterE(t testing.TestingT, options *KubectlOptions, filter metav1.ListOptions) ([]corev1.Node, error)

GetNodesByFilterE queries Kubernetes for information about the worker nodes registered to the cluster, filtering the list of nodes using the provided ListOptions.

func GetNodesE 

func GetNodesE(t testing.TestingT, options *KubectlOptions) ([]corev1.Node, error)

GetNodesE queries Kubernetes for information about the worker nodes registered to the cluster.

func GetPod 

func GetPod(t testing.TestingT, options *KubectlOptions, podName string) *corev1.Pod

GetPod returns a Kubernetes pod resource in the provided namespace with the given name. This will fail the test if there is an error.

func GetPodE 

func GetPodE(t testing.TestingT, options *KubectlOptions, podName string) (*corev1.Pod, error)

GetPodE returns a Kubernetes pod resource in the provided namespace with the given name.

func GetReadyNodes 

func GetReadyNodes(t testing.TestingT, options *KubectlOptions) []corev1.Node

GetReadyNodes queries Kubernetes for information about the worker nodes registered to the cluster and only returns those that are in the ready state. If anything goes wrong, the function will automatically fail the test.

func GetReadyNodesE 

func GetReadyNodesE(t testing.TestingT, options *KubectlOptions) ([]corev1.Node, error)

GetReadyNodesE queries Kubernetes for information about the worker nodes registered to the cluster and only returns those that are in the ready state.

func GetRole 

func GetRole(t testing.TestingT, options *KubectlOptions, roleName string) *rbacv1.Role

GetRole returns a Kubernetes role resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions. This will fail the test if there is an error.

func GetRoleE 

func GetRoleE(t testing.TestingT, options *KubectlOptions, roleName string) (*rbacv1.Role, error)

GetRoleE returns a Kubernetes role resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions.

func GetSecret 

func GetSecret(t testing.TestingT, options *KubectlOptions, secretName string) *corev1.Secret

GetSecret returns a Kubernetes secret resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions. This will fail the test if there is an error.

func GetSecretE 

func GetSecretE(t testing.TestingT, options *KubectlOptions, secretName string) (*corev1.Secret, error)

GetSecretE returns a Kubernetes secret resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions.

func GetService 

func GetService(t testing.TestingT, options *KubectlOptions, serviceName string) *corev1.Service

GetService returns a Kubernetes service resource in the provided namespace with the given name. This will fail the test if there is an error.

func GetServiceAccount 

func GetServiceAccount(t testing.TestingT, options *KubectlOptions, serviceAccountName string) *corev1.ServiceAccount

GetServiceAccount returns a Kubernetes service account resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions. This will fail the test if there is an error.

func GetServiceAccountAuthToken 

func GetServiceAccountAuthToken(t testing.TestingT, kubectlOptions *KubectlOptions, serviceAccountName string) string

GetServiceAccountAuthToken will retrieve the ServiceAccount token from the cluster so it can be used to authenticate requests as that ServiceAccount. This will fail the test if there is an error.

func GetServiceAccountAuthTokenE 

func GetServiceAccountAuthTokenE(t testing.TestingT, kubectlOptions *KubectlOptions, serviceAccountName string) (string, error)

GetServiceAccountAuthTokenE will retrieve the ServiceAccount token from the cluster so it can be used to authenticate requests as that ServiceAccount.

func GetServiceAccountE 

func GetServiceAccountE(t testing.TestingT, options *KubectlOptions, serviceAccountName string) (*corev1.ServiceAccount, error)

GetServiceAccountE returns a Kubernetes service account resource in the provided namespace with the given name. The namespace used is the one provided in the KubectlOptions.

func GetServiceE 

func GetServiceE(t testing.TestingT, options *KubectlOptions, serviceName string) (*corev1.Service, error)

GetServiceE returns a Kubernetes service resource in the provided namespace with the given name.

func GetServiceEndpoint 

func GetServiceEndpoint(t testing.TestingT, options *KubectlOptions, service *corev1.Service, servicePort int) string

GetServiceEndpoint will return the service access point. If the service endpoint is not ready, will fail the test immediately.

func GetServiceEndpointE 

func GetServiceEndpointE(t testing.TestingT, options *KubectlOptions, service *corev1.Service, servicePort int) (string, error)

GetServiceEndpointE will return the service access point using the following logic:

  • For ClusterIP service type, return the URL that maps to ClusterIP and Service Port
  • For NodePort service type, identify the public IP of the node (if it exists, otherwise return the bound hostname), and the assigned node port for the provided service port, and return the URL that maps to node ip and node port.
  • For LoadBalancer service type, return the publicly accessible hostname of the load balancer. If the hostname is empty, it will return the public IP of the LoadBalancer.
  • All other service types are not supported.

func IsIngressAvailable 

func IsIngressAvailable(ingress *extensionsv1beta1.Ingress) bool

IsIngressAvailable returns true if the Ingress endpoint is provisioned and available.

func IsMinikubeE 

func IsMinikubeE(t testing.TestingT, options *KubectlOptions) (bool, error)

IsMinikubeE returns true if the underlying kubernetes cluster is Minikube. This is determined by getting the associated nodes and checking if all nodes has at least one label namespaced with "minikube.k8s.io".

func IsNodeReady 

func IsNodeReady(node corev1.Node) bool

IsNodeReady takes a Kubernetes Node information object and checks if the Node is in the ready state.

func IsPodAvailable 

func IsPodAvailable(pod *corev1.Pod) bool

IsPodAvailable returns true if the all of the containers within the pod are ready and started

func IsServiceAvailable 

func IsServiceAvailable(service *corev1.Service) bool

IsServiceAvailable returns true if the service endpoint is ready to accept traffic. Note that for Minikube, this function is moot as all services, even LoadBalancer, is available immediately.

func KubeConfigPathFromHomeDirE 

func KubeConfigPathFromHomeDirE() (string, error)

KubeConfigPathFromHomeDirE returns a string to the default Kubernetes config path in the home directory. This will error if the home directory can not be determined.

func KubectlApply 

func KubectlApply(t testing.TestingT, options *KubectlOptions, configPath string)

KubectlApply will take in a file path and apply it to the cluster targeted by KubectlOptions. If there are any errors, fail the test immediately.

func KubectlApplyE 

func KubectlApplyE(t testing.TestingT, options *KubectlOptions, configPath string) error

KubectlApplyE will take in a file path and apply it to the cluster targeted by KubectlOptions.

func KubectlApplyFromString 

func KubectlApplyFromString(t testing.TestingT, options *KubectlOptions, configData string)

KubectlApplyFromString will take in a kubernetes resource config as a string and apply it on the cluster specified by the provided kubectl options.

func KubectlApplyFromStringE 

func KubectlApplyFromStringE(t testing.TestingT, options *KubectlOptions, configData string) error

KubectlApplyFromStringE will take in a kubernetes resource config as a string and apply it on the cluster specified by the provided kubectl options. If it fails, this will return the error.

func KubectlDelete 

func KubectlDelete(t testing.TestingT, options *KubectlOptions, configPath string)

KubectlDelete will take in a file path and delete it from the cluster targeted by KubectlOptions. If there are any errors, fail the test immediately.

func KubectlDeleteE 

func KubectlDeleteE(t testing.TestingT, options *KubectlOptions, configPath string) error

KubectlDeleteE will take in a file path and delete it from the cluster targeted by KubectlOptions.

func KubectlDeleteFromString 

func KubectlDeleteFromString(t testing.TestingT, options *KubectlOptions, configData string)

KubectlDeleteFromString will take in a kubernetes resource config as a string and delete it on the cluster specified by the provided kubectl options.

func KubectlDeleteFromStringE 

func KubectlDeleteFromStringE(t testing.TestingT, options *KubectlOptions, configData string) error

KubectlDeleteFromStringE will take in a kubernetes resource config as a string and delete it on the cluster specified by the provided kubectl options. If it fails, this will return the error.

func ListDaemonSets 

func ListDaemonSets(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) []appsv1.DaemonSet

ListDaemonSets will look for daemonsets in the given namespace that match the given filters and return them. This will fail the test if there is an error.

func ListDaemonSetsE 

func ListDaemonSetsE(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) ([]appsv1.DaemonSet, error)

ListDaemonSetsE will look for daemonsets in the given namespace that match the given filters and return them.

func ListIngresses 

func ListIngresses(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) []extensionsv1beta1.Ingress

ListIngresses will look for Ingress resources in the given namespace that match the given filters and return them. This will fail the test if there is an error.

func ListIngressesE 

func ListIngressesE(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) ([]extensionsv1beta1.Ingress, error)

ListIngressesE will look for Ingress resources in the given namespace that match the given filters and return them.

func ListPods 

func ListPods(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) []corev1.Pod

ListPods will look for pods in the given namespace that match the given filters and return them. This will fail the test if there is an error.

func ListPodsE 

func ListPodsE(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) ([]corev1.Pod, error)

ListPodsE will look for pods in the given namespace that match the given filters and return them.

func ListServices 

func ListServices(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) []corev1.Service

ListServices will look for services in the given namespace that match the given filters and return them. This will fail the test if there is an error.

func ListServicesE 

func ListServicesE(t testing.TestingT, options *KubectlOptions, filters metav1.ListOptions) ([]corev1.Service, error)

ListServicesE will look for services in the given namespace that match the given filters and return them.

func LoadApiClientConfigE 

func LoadApiClientConfigE(configPath string, contextName string) (*restclient.Config, error)

LoadApiClientConfigE will load a ClientConfig object from a file path that points to a location on disk containing a kubectl config, with the requested context loaded.

func LoadConfigFromPath 

func LoadConfigFromPath(path string) clientcmd.ClientConfig

LoadConfigFromPath will load a ClientConfig object from a file path that points to a location on disk containing a kubectl config.

func RemoveOrphanedClusterAndAuthInfoConfig 

func RemoveOrphanedClusterAndAuthInfoConfig(config *api.Config)

RemoveOrphanedClusterAndAuthInfoConfig will remove all configurations related to clusters and users that have no contexts associated with it

func RunKubectl 

func RunKubectl(t testing.TestingT, options *KubectlOptions, args ...string)

RunKubectl will call kubectl using the provided options and args, failing the test on error.

func RunKubectlAndGetOutputE 

func RunKubectlAndGetOutputE(t testing.TestingT, options *KubectlOptions, args ...string) (string, error)

RunKubectlAndGetOutputE will call kubectl using the provided options and args, returning the output of stdout and stderr.

func RunKubectlE 

func RunKubectlE(t testing.TestingT, options *KubectlOptions, args ...string) error

RunKubectlE will call kubectl using the provided options and args.

func StoreConfigToTempFile 

func StoreConfigToTempFile(t testing.TestingT, configData string) string

StoreConfigToTempFile will store the provided config data to a temporary file created on the os and return the filename.

func StoreConfigToTempFileE 

func StoreConfigToTempFileE(t testing.TestingT, configData string) (string, error)

StoreConfigToTempFileE will store the provided config data to a temporary file created on the os and return the filename, or error.

func UpsertConfigContext 

func UpsertConfigContext(config *api.Config, contextName string, clusterName string, userName string)

UpsertConfigContext will update or insert a new context to the provided config, binding the provided cluster to the provided user.

func WaitUntilAllNodesReady 

func WaitUntilAllNodesReady(t testing.TestingT, options *KubectlOptions, retries int, sleepBetweenRetries time.Duration)

WaitUntilAllNodesReady continuously polls the Kubernetes cluster until all nodes in the cluster reach the ready state, or runs out of retries. Will fail the test immediately if it times out.

func WaitUntilAllNodesReadyE 

func WaitUntilAllNodesReadyE(t testing.TestingT, options *KubectlOptions, retries int, sleepBetweenRetries time.Duration) error

WaitUntilAllNodesReadyE continuously polls the Kubernetes cluster until all nodes in the cluster reach the ready state, or runs out of retries.

func WaitUntilIngressAvailable 

func WaitUntilIngressAvailable(t testing.TestingT, options *KubectlOptions, ingressName string, retries int, sleepBetweenRetries time.Duration)

WaitUntilIngressAvailable waits until the Ingress resource has an endpoint provisioned for it.

func WaitUntilNumPodsCreated 

func WaitUntilNumPodsCreated(
	t testing.TestingT,
	options *KubectlOptions,
	filters metav1.ListOptions,
	desiredCount int,
	retries int,
	sleepBetweenRetries time.Duration,
)

WaitUntilNumPodsCreated waits until the desired number of pods are created that match the provided filter. This will retry the check for the specified amount of times, sleeping for the provided duration between each try. This will fail the test if the retry times out.

func WaitUntilNumPodsCreatedE 

func WaitUntilNumPodsCreatedE(
	t testing.TestingT,
	options *KubectlOptions,
	filters metav1.ListOptions,
	desiredCount int,
	retries int,
	sleepBetweenRetries time.Duration,
) error

WaitUntilNumPodsCreatedE waits until the desired number of pods are created that match the provided filter. This will retry the check for the specified amount of times, sleeping for the provided duration between each try.

func WaitUntilPodAvailable 

func WaitUntilPodAvailable(t testing.TestingT, options *KubectlOptions, podName string, retries int, sleepBetweenRetries time.Duration)

WaitUntilPodAvailable waits until all of the containers within the pod are ready and started, retrying the check for the specified amount of times, sleeping for the provided duration between each try. This will fail the test if there is an error or if the check times out.

func WaitUntilPodAvailableE 

func WaitUntilPodAvailableE(t testing.TestingT, options *KubectlOptions, podName string, retries int, sleepBetweenRetries time.Duration) error

WaitUntilPodAvailableE waits until all of the containers within the pod are ready and started, retrying the check for the specified amount of times, sleeping for the provided duration between each try.

func WaitUntilServiceAvailable 

func WaitUntilServiceAvailable(t testing.TestingT, options *KubectlOptions, serviceName string, retries int, sleepBetweenRetries time.Duration)

WaitUntilServiceAvailable waits until the service endpoint is ready to accept traffic.

Types

type DesiredNumberOfPodsNotCreated 

type DesiredNumberOfPodsNotCreated struct {
	Filter       metav1.ListOptions
	DesiredCount int
}

DesiredNumberOfPodsNotCreated is returned when the number of pods matching a filter condition does not match the desired number of Pods.

func (DesiredNumberOfPodsNotCreated) Error 

func (err DesiredNumberOfPodsNotCreated) Error() string

Error is a simple function to return a formatted error message as a string

type IngressNotAvailable 

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

IngressNotAvailable is returned when a Kubernetes service is not yet available to accept traffic.

func (IngressNotAvailable) Error 

func (err IngressNotAvailable) Error() string

Error is a simple function to return a formatted error message as a string

type KubeResourceType 

type KubeResourceType int

KubeResourceType is an enum representing known resource types that can support port forwarding 

const (
	// ResourceTypePod is a k8s pod kind identifier
	ResourceTypePod KubeResourceType = iota
	// ResourceTypeService is a k8s service kind identifier
	ResourceTypeService
)

func (KubeResourceType) String 

func (resourceType KubeResourceType) String() string

type KubectlOptions 

type KubectlOptions struct {
	ContextName string
	ConfigPath  string
	Namespace   string
	Env         map[string]string
}

KubectlOptions represents common options necessary to specify for all Kubectl calls

func NewKubectlOptions 

func NewKubectlOptions(contextName string, configPath string, namespace string) *KubectlOptions

NewKubectlOptions will return a pointer to new instance of KubectlOptions with the configured options

func (*KubectlOptions) GetConfigPath 

func (kubectlOptions *KubectlOptions) GetConfigPath(t testing.TestingT) (string, error)

GetConfigPath will return a sensible default if the config path is not set on the options.

type MalformedNodeID 

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

MalformedNodeID is returned when a Kubernetes node has a malformed node id scheme

func NewMalformedNodeIDError 

func NewMalformedNodeIDError(node *corev1.Node) MalformedNodeID

NewMalformedNodeIDError returns a MalformedNodeID struct when Kubernetes deems that a NodeID is malformed

func (MalformedNodeID) Error 

func (err MalformedNodeID) Error() string

Error is a simple function to return a formatted error message as a string

type NoNodesInKubernetes 

type NoNodesInKubernetes struct{}

NoNodesInKubernetes is returned when the Kubernetes cluster has no nodes registered.

func NewNoNodesInKubernetesError 

func NewNoNodesInKubernetesError() NoNodesInKubernetes

NewNoNodesInKubernetesError returns a NoNodesInKubernetes struct when it is deemed that there are no Kubernetes nodes registered

func (NoNodesInKubernetes) Error 

func (err NoNodesInKubernetes) Error() string

Error is a simple function to return a formatted error message as a string

type NodeHasNoHostname 

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

NodeHasNoHostname is returned when a Kubernetes node has no discernible hostname

func NewNodeHasNoHostnameError 

func NewNodeHasNoHostnameError(node *corev1.Node) NodeHasNoHostname

NewNodeHasNoHostnameError returns a NodeHasNoHostname struct when it is deemed that the provided node has no hostname

func (NodeHasNoHostname) Error 

func (err NodeHasNoHostname) Error() string

Error is a simple function to return a formatted error message as a string

type PodNotAvailable 

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

PodNotAvailable is returned when a Kubernetes service is not yet available to accept traffic.

func NewPodNotAvailableError 

func NewPodNotAvailableError(pod *corev1.Pod) PodNotAvailable

NewPodNotAvailableError returnes a PodNotAvailable struct when Kubernetes deems a pod is not available

func (PodNotAvailable) Error 

func (err PodNotAvailable) Error() string

Error is a simple function to return a formatted error message as a string

type ServiceAccountTokenNotAvailable 

type ServiceAccountTokenNotAvailable struct {
	Name string
}

ServiceAccountTokenNotAvailable is returned when a Kubernetes ServiceAccount does not have a token provisioned yet.

func (ServiceAccountTokenNotAvailable) Error 

func (err ServiceAccountTokenNotAvailable) Error() string

Error is a simple function to return a formatted error message as a string

type ServiceNotAvailable 

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

ServiceNotAvailable is returned when a Kubernetes service is not yet available to accept traffic.

func NewServiceNotAvailableError 

func NewServiceNotAvailableError(service *corev1.Service) ServiceNotAvailable

NewServiceNotAvailableError returnes a ServiceNotAvailable struct when Kubernetes deems a service is not available

func (ServiceNotAvailable) Error 

func (err ServiceNotAvailable) Error() string

Error is a simple function to return a formatted error message as a string

type Tunnel 

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

Tunnel is the main struct that configures and manages port forwading tunnels to Kubernetes resources.

func NewTunnel 

func NewTunnel(kubectlOptions *KubectlOptions, resourceType KubeResourceType, resourceName string, local int, remote int) *Tunnel

NewTunnel creates a new tunnel with NewTunnelWithLogger, setting logger.Terratest as the logger.

func NewTunnelWithLogger 

func NewTunnelWithLogger(
	kubectlOptions *KubectlOptions,
	resourceType KubeResourceType,
	resourceName string,
	local int,
	remote int,
	logger logger.TestLogger,
) *Tunnel

NewTunnelWithLogger will create a new Tunnel struct with the provided logger. Note that if you use 0 for the local port, an open port on the host system will be selected automatically, and the Tunnel struct will be updated with the selected port.

func (*Tunnel) Close 

func (tunnel *Tunnel) Close()

Close disconnects a tunnel connection by closing the StopChan, thereby stopping the goroutine.

func (*Tunnel) Endpoint 

func (tunnel *Tunnel) Endpoint() string

Endpoint returns the tunnel endpoint

func (*Tunnel) ForwardPort 

func (tunnel *Tunnel) ForwardPort(t testing.TestingT)

ForwardPort opens a tunnel to a kubernetes resource, as specified by the provided tunnel struct. This will fail the test if there is an error attempting to open the port.

func (*Tunnel) ForwardPortE 

func (tunnel *Tunnel) ForwardPortE(t testing.TestingT) error

ForwardPortE opens a tunnel to a kubernetes resource, as specified by the provided tunnel struct.

type UnknownKubeResourceType 

type UnknownKubeResourceType struct {
	ResourceType KubeResourceType
}

UnknownKubeResourceType is returned if the given resource type does not match the list of known resource types.

func (UnknownKubeResourceType) Error 

func (err UnknownKubeResourceType) Error() string

type UnknownServicePort 

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

UnknownServicePort is returned when the given service port is not an exported port of the service.

func NewUnknownServicePortError 

func NewUnknownServicePortError(service *corev1.Service, port int32) UnknownServicePort

NewUnknownServicePortError returns an UnknownServicePort struct when it is deemed that Kuberenetes does not know of the provided Service Port

func (UnknownServicePort) Error 

func (err UnknownServicePort) Error() string

Error is a simple function to return a formatted error message as a string

type UnknownServiceType 

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

UnknownServiceType is returned when a Kubernetes service has a type that is not yet handled by the test functions.

func NewUnknownServiceTypeError 

func NewUnknownServiceTypeError(service *corev1.Service) UnknownServiceType

NewUnknownServiceTypeError returns an UnknownServiceType struct when is it deemed that Kubernetes does not know the service type provided

func (UnknownServiceType) Error 

func (err UnknownServiceType) Error() string

Error is a simple function to return a formatted error message as a string

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