client

package
v0.8.10 Latest Latest
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 Go to latest Published: Aug 25, 2020 License: Apache-2.0 Imports: 33 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// NA Not available
	NA = "n/a"

	// NamespaceAll designates the fictional all namespace.
	NamespaceAll = "all"

	// AllNamespaces designates all namespaces.
	AllNamespaces = ""

	// ClusterScope designates a resource is not namespaced.
	ClusterScope = "-"

	// NotNamespaced designates a non resource namespace.
	NotNamespaced = "*"
)
View Source 
const (

	// CallTimeout represents api call timeout limit.
	CallTimeout = 5 * time.Second
)

Variables

This section is empty.

Functions

func Can 

func Can(verbs []string, v string) bool

Can determines the available actions for a given resource.

func CleanseNamespace 

func CleanseNamespace(ns string) string

CleanseNamespace ensures all ns maps to blank.

func FQN 

func FQN(ns, n string) string

FQN returns a fully qualified resource name.

func IsAllNamespace 

func IsAllNamespace(ns string) bool

IsAllNamespace returns true if ns == all.

func IsAllNamespaces 

func IsAllNamespaces(ns string) bool

IsAllNamespaces returns true if all namespaces, false otherwise.

func IsClusterScoped 

func IsClusterScoped(ns string) bool

IsClusterScoped returns true if resource is not namespaced.

func IsClusterWide 

func IsClusterWide(ns string) bool

IsClusterWide returns true if ns designates cluster scope, false otherwise.

func IsNamespaced 

func IsNamespaced(ns string) bool

IsNamespaced returns true if a specific ns is given.

func MetaFQN 

func MetaFQN(m metav1.ObjectMeta) string

MetaFQN returns a fully qualified resource name.

func Namespaced 

func Namespaced(p string) (string, string)

Namespaced converts a resource path to namespace and resource name.

Types

type APIClient 

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

APIClient represents a Kubernetes api client.

func InitConnectionOrDie 

func InitConnectionOrDie(config types.Config) *APIClient

InitConnectionOrDie initialize connection from command line args. Checks for connectivity with the api server.

func NewTestClient 

func NewTestClient() *APIClient

NewTestClient for testing ONLY!!

func (*APIClient) ActiveCluster 

func (a *APIClient) ActiveCluster() string

ActiveCluster returns the current cluster name.

func (*APIClient) ActiveNamespace 

func (a *APIClient) ActiveNamespace() string

ActiveNamespace returns the current namespace.

func (*APIClient) CachedDiscovery added in v0.8.4 

func (a *APIClient) CachedDiscovery() (*disk.CachedDiscoveryClient, error)

CachedDiscovery returns a cached discovery client.

func (*APIClient) CanI 

func (a *APIClient) CanI(ns, gvr string, verbs []string) (auth bool, err error)

CanI checks if user has access to a certain resource.

func (*APIClient) CheckConnectivity 

func (a *APIClient) CheckConnectivity() (status bool)

CheckConnectivity return true if api server is cool or false otherwise.

func (*APIClient) Config 

func (a *APIClient) Config() types.Config

Config return a kubernetes configuration.

func (*APIClient) CurrentNamespaceName 

func (a *APIClient) CurrentNamespaceName() (string, error)

CurrentNamespaceName return namespace name set via either cli arg or cluster config.

func (*APIClient) Dial added in v0.8.4 

func (a *APIClient) Dial() (kubernetes.Interface, error)

Dial returns a handle to api server or an error

func (*APIClient) DynDial added in v0.8.4 

func (a *APIClient) DynDial() (dynamic.Interface, error)

DynDial returns a handle to a dynamic interface.

func (*APIClient) HasMetrics 

func (a *APIClient) HasMetrics() bool

HasMetrics returns true if the cluster supports metrics.

func (*APIClient) IsActiveNamespace 

func (a *APIClient) IsActiveNamespace(ns string) bool

IsActiveNamespace returns true if namespaces matches.

func (*APIClient) MXDial 

func (a *APIClient) MXDial() (*versioned.Clientset, error)

MXDial returns a handle to the metrics server.

func (*APIClient) RestConfig added in v0.8.4 

func (a *APIClient) RestConfig() (*restclient.Config, error)

RestConfig returns a rest api client.

func (*APIClient) ServerVersion 

func (a *APIClient) ServerVersion() (*version.Info, error)

ServerVersion returns the current server version info.

func (*APIClient) ValidNamespaces 

func (a *APIClient) ValidNamespaces() ([]v1.Namespace, error)

ValidNamespaces returns all available namespaces.

type Config 

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

Config tracks a kubernetes configuration.

func NewConfig 

func NewConfig(f *genericclioptions.ConfigFlags) *Config

NewConfig returns a new k8s config or an error if the flags are invalid.

func (*Config) ClusterNameFromContext 

func (c *Config) ClusterNameFromContext(ctx string) (string, error)

ClusterNameFromContext returns the cluster associated with the given context.

func (*Config) ClusterNames 

func (c *Config) ClusterNames() ([]string, error)

ClusterNames fetch all kubeconfig defined clusters.

func (*Config) ConfigAccess 

func (c *Config) ConfigAccess() (clientcmd.ConfigAccess, error)

ConfigAccess return the current kubeconfig api server access configuration.

func (*Config) ContextNames 

func (c *Config) ContextNames() ([]string, error)

ContextNames fetch all available contexts.

func (*Config) Contexts 

func (c *Config) Contexts() (map[string]*clientcmdapi.Context, error)

Contexts fetch all available contexts.

func (*Config) CurrentClusterName 

func (c *Config) CurrentClusterName() (string, error)

CurrentClusterName returns the active cluster name.

func (*Config) CurrentContextName 

func (c *Config) CurrentContextName() (string, error)

CurrentContextName returns the currently active config context.

func (*Config) CurrentGroupNames 

func (c *Config) CurrentGroupNames() ([]string, error)

CurrentGroupNames retrieves the active group names.

func (*Config) CurrentNamespaceName 

func (c *Config) CurrentNamespaceName() (string, error)

CurrentNamespaceName retrieves the active namespace.

func (*Config) CurrentUserName 

func (c *Config) CurrentUserName() (string, error)

CurrentUserName retrieves the active user name.

func (*Config) DelContext 

func (c *Config) DelContext(n string) error

DelContext remove a given context from the configuration.

func (*Config) Flags 

func (c *Config) Flags() *genericclioptions.ConfigFlags

Flags returns configuration flags.

func (*Config) GetContext 

func (c *Config) GetContext(n string) (*clientcmdapi.Context, error)

GetContext fetch a given context or error if it does not exists.

func (*Config) ImpersonateGroups 

func (c *Config) ImpersonateGroups() (string, error)

ImpersonateGroups retrieves the active groupsif set on the CLI.

func (*Config) ImpersonateUser 

func (c *Config) ImpersonateUser() (string, error)

ImpersonateUser retrieves the active user name if set on the CLI.

func (*Config) NamespaceNames 

func (c *Config) NamespaceNames(nns []v1.Namespace) []string

NamespaceNames fetch all available namespaces on current cluster.

func (*Config) RESTConfig 

func (c *Config) RESTConfig() (*restclient.Config, error)

RESTConfig fetch the current REST api service connection.

func (*Config) RawConfig 

func (c *Config) RawConfig() (clientcmdapi.Config, error)

RawConfig fetch the current kubeconfig with no overrides.

type ContainerMetrics 

type ContainerMetrics map[string]Metrics

ContainerMetrics tracks container metrics

type Factory 

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

Factory tracks various resource informers.

func NewFactory 

func NewFactory(client types.Connection) *Factory

NewFactory returns a new informers factory.

func (*Factory) CanForResource 

func (f *Factory) CanForResource(ns, gvr string, verbs []string) (informers.GenericInformer, error)

CanForResource return an informer is user has access.

func (*Factory) Client 

func (f *Factory) Client() types.Connection

Client return the factory connection.

func (*Factory) FactoryFor 

func (f *Factory) FactoryFor(ns string) di.DynamicSharedInformerFactory

FactoryFor returns a factory for a given namespace.

func (*Factory) ForResource 

func (f *Factory) ForResource(ns, gvr string) (informers.GenericInformer, error)

ForResource returns an informer for a given resource.

func (*Factory) Get 

func (f *Factory) Get(gvr, path string, wait bool, sel labels.Selector) (runtime.Object, error)

Get retrieves a given resource.

func (*Factory) List 

func (f *Factory) List(gvr, ns string, wait bool, labels labels.Selector) ([]runtime.Object, error)

List returns a resource collection.

func (*Factory) SetActiveNS 

func (f *Factory) SetActiveNS(ns string) error

SetActiveNS sets the active namespace.

func (*Factory) Start 

func (f *Factory) Start(ns string)

Start initializes the informers until caller cancels the context.

func (*Factory) Terminate 

func (f *Factory) Terminate()

Terminate stops the factory.

func (*Factory) WaitForCacheSync 

func (f *Factory) WaitForCacheSync()

WaitForCacheSync waits for all factories to update their cache.

type GVR 

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

GVR represents a kubernetes resource schema as a string. Format is group/version/resources:subresource

func FromGVAndR 

func FromGVAndR(gv, r string) GVR

FromGVAndR builds a gvr from a group/version and resource.

func NewGVR 

func NewGVR(gvr string) GVR

NewGVR builds a new gvr from a group, version, resource.

func NewGVRFromMeta 

func NewGVRFromMeta(a metav1.APIResource) GVR

NewGVRFromMeta builds a gvr from resource metadata.

func (GVR) AsResourceName 

func (g GVR) AsResourceName() string

AsResourceName returns a resource . separated descriptor in the shape of kind.version.group.

func (GVR) G 

func (g GVR) G() string

G returns the resource group name.

func (GVR) GR 

func (g GVR) GR() *schema.GroupResource

GR returns a full schema representation.

func (GVR) GV 

func (g GVR) GV() schema.GroupVersion

GV returns the group version scheme representation.

func (GVR) GVK 

func (g GVR) GVK() schema.GroupVersionKind

GVK returns a full schema representation.

func (GVR) GVR 

func (g GVR) GVR() schema.GroupVersionResource

GVR returns a full schema representation.

func (GVR) R 

func (g GVR) R() string

R returns the resource name.

func (GVR) RG 

func (g GVR) RG() (string, string)

RG returns the resource and group.

func (GVR) String 

func (g GVR) String() string

String returns gvr as string.

func (GVR) SubResource 

func (g GVR) SubResource() string

SubResource returns a sub resource if available.

func (GVR) V 

func (g GVR) V() string

V returns the resource version.

type GVRs 

type GVRs []GVR

GVRs represents a collection of gvr.

func (GVRs) Len 

func (g GVRs) Len() int

Len returns the list size.

func (GVRs) Less 

func (g GVRs) Less(i, j int) bool

Less returns true if i < j.

func (GVRs) Swap 

func (g GVRs) Swap(i, j int)

Swap swaps list values.

type Metrics 

type Metrics struct {
	CurrentCPU resource.Quantity
	CurrentMEM resource.Quantity
}

Metrics represent an aggregation of all pod containers metrics.

func (Metrics) Empty 

func (m Metrics) Empty() bool

Empty checks if we have any metrics.

type NodeMetrics 

type NodeMetrics struct {
	CurrentCPU   resource.Quantity
	CurrentMEM   resource.Quantity
	AvailableCPU resource.Quantity
	AvailableMEM resource.Quantity
	TotalCPU     resource.Quantity
	TotalMEM     resource.Quantity
}

NodeMetrics describes raw node metrics.

func (NodeMetrics) Empty 

func (n NodeMetrics) Empty() bool

Empty checks if we have any metrics.

type NodesMetrics 

type NodesMetrics map[string]NodeMetrics

NodesMetrics tracks usage metrics per nodes.

type PodsMetrics 

type PodsMetrics map[string]ContainerMetrics

PodsMetrics tracks usage metrics per pods.

Source Files

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