util

package
v2.0.2 Latest Latest
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 Go to latest Published: Oct 10, 2019 License: Apache-2.0 Imports: 33 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CombineErrors 

func CombineErrors(errs ...error) error

CombineErrors takes a list of errors and combines them to one. Generally it will return the first non-nil error, but if a persistent error is found it will be returned instead of non-persistent errors.

func Context 

func Context() context.Context

Context returns a default Context

func CurrentNamespace 

func CurrentNamespace() string

CurrentNamespace reads the current namespace from the kube config

func GetAWSRegion 

func GetAWSRegion() string

GetAWSRegion parses the region from a node's name

func GetContainerStatusLine 

func GetContainerStatusLine(cont *corev1.ContainerStatus) string

GetContainerStatusLine returns a one liner status for a container

func GetFlagStringOrPrompt 

func GetFlagStringOrPrompt(cmd *cobra.Command, flag string) string

GetFlagStringOrPrompt returns flag value but if empty will promtp to read from stdin

func GetFlagStringOrPromptPassword 

func GetFlagStringOrPromptPassword(cmd *cobra.Command, flag string) string

GetFlagStringOrPromptPassword is like GetFlagStringOrPrompt but does not show the input characters on the terminal to avoid leaking secret data in shell history

func GetPodStatusLine 

func GetPodStatusLine(pod *corev1.Pod) string

GetPodStatusLine returns a one liner status for a pod

func IgnoreError 

func IgnoreError(err error)

IgnoreError do nothing if err is not nil

func InitLogger 

func InitLogger()

InitLogger initializes the logrus logger with defaults

func IsAWSPlatform 

func IsAWSPlatform() bool

IsAWSPlatform returns true if this cluster is running on AWS

func IsPersistentError 

func IsPersistentError(err error) bool

IsPersistentError checks if the provided error is persistent.

func KubeApply 

func KubeApply(obj runtime.Object) bool

KubeApply will check if the object exists and will create/update accordingly and report the object status.

func KubeCheck 

func KubeCheck(obj runtime.Object) bool

KubeCheck checks if the object exists and reports the object status.

func KubeCheckOptional 

func KubeCheckOptional(obj runtime.Object) bool

KubeCheckOptional checks if the object exists and reports the object status. It detects the situation of a missing CRD and reports it as an optional feature.

func KubeClient 

func KubeClient() client.Client

KubeClient resturns a controller-runtime client We use a lazy mapper and a specialized implementation of fast mapper in order to avoid lags when running a CLI client to a far away cluster.

func KubeConfig 

func KubeConfig() *rest.Config

KubeConfig loads kubernetes client config from default locations (flags, user dir, etc)

func KubeCreateSkipExisting 

func KubeCreateSkipExisting(obj runtime.Object) bool

KubeCreateSkipExisting will check if the object exists and will create/skip accordingly and report the object status.

func KubeDelete 

func KubeDelete(obj runtime.Object, opts ...client.DeleteOptionFunc) bool

KubeDelete deletes an object and reports the object status.

func KubeList 

func KubeList(list runtime.Object, options *client.ListOptions) bool

KubeList returns a list of objects.

func KubeObject 

func KubeObject(text string) runtime.Object

KubeObject loads a text yaml/json to a kubernets object.

func KubeUpdate 

func KubeUpdate(obj runtime.Object) bool

KubeUpdate updates an object and reports the object status.

func LogError 

func LogError(err error)

LogError prints the error to the log and continue

func Logger 

func Logger() *logrus.Entry

Logger returns a default logger

func MapperProvider 

func MapperProvider(config *rest.Config) (meta.RESTMapper, error)

MapperProvider creates RESTMapper

func NewFastRESTMapper 

func NewFastRESTMapper(dc discovery.DiscoveryInterface, filter APIGroupFilterFunc) meta.RESTMapper

NewFastRESTMapper initializes a FastRESTMapper

func NoGroupFilter 

func NoGroupFilter(*metav1.APIGroup) bool

NoGroupFilter is a filtering function that includes all the server groups

func ObjectKey 

func ObjectKey(obj runtime.Object) client.ObjectKey

ObjectKey returns the objects key (namespace + name)

func Panic 

func Panic(err error)

Panic is conviniently calling panic only if err is not nil

func PrintThisNoteWhenFinishedApplyingAndStartWaitLoop added in v2.0.2 

func PrintThisNoteWhenFinishedApplyingAndStartWaitLoop()

PrintThisNoteWhenFinishedApplyingAndStartWaitLoop is a common log task

func RandomBase64 

func RandomBase64(numBytes int) string

RandomBase64 creates a random buffer with numBytes and returns it encoded in base64 Returned string length is 4*math.Ceil(numBytes/3)

func RandomHex 

func RandomHex(numBytes int) string

RandomHex creates a random buffer with numBytes and returns it encoded in hex Returned string length is 2*numBytes

func RemoveFinalizer 

func RemoveFinalizer(obj metav1.Object, finalizer string) bool

RemoveFinalizer modifies the object and removes the finalizer

func SecretResetStringDataFromData 

func SecretResetStringDataFromData(obj runtime.Object)

SecretResetStringDataFromData reads the secret data into string data to streamline the paths that use the secret values as strings.

func SetAvailableCondition 

func SetAvailableCondition(conditions *[]conditionsv1.Condition, reason string, message string)

SetAvailableCondition updates the status conditions to available state

func SetErrorCondition 

func SetErrorCondition(conditions *[]conditionsv1.Condition, reason string, message string)

SetErrorCondition updates the status conditions to error state

func SetProgressingCondition 

func SetProgressingCondition(conditions *[]conditionsv1.Condition, reason string, message string)

SetProgressingCondition updates the status conditions to in-progress state

Types

type APIGroupFilterFunc 

type APIGroupFilterFunc func(*metav1.APIGroup) bool

APIGroupFilterFunc is a filtering function to limit the amount of server groups we load

type FastRESTMapper 

type FastRESTMapper struct {
	Discovery discovery.DiscoveryInterface
	Filter    APIGroupFilterFunc
	Mapper    meta.RESTMapper
}

FastRESTMapper loads the mapper data from the server with filter and concurrency and rediscovers the mapping on meta.NoKindMatchError errors See https://github.com/kubernetes-sigs/controller-runtime/issues/537

func (*FastRESTMapper) Discover 

func (m *FastRESTMapper) Discover() error

Discover reads server groups and then reads each group to initialize the mapper groups.

func (*FastRESTMapper) DiscoverGroup 

func (m *FastRESTMapper) DiscoverGroup(gr *restmapper.APIGroupResources) error

DiscoverGroup reads the server group

func (*FastRESTMapper) DiscoverOnError 

func (m *FastRESTMapper) DiscoverOnError(err error) bool

DiscoverOnError check if the error is NoMatchError and calls discover

func (*FastRESTMapper) KindFor 

func (m *FastRESTMapper) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error)

KindFor implements Mapper.KindFor

func (*FastRESTMapper) KindsFor 

func (m *FastRESTMapper) KindsFor(resource schema.GroupVersionResource) ([]schema.GroupVersionKind, error)

KindsFor implements Mapper.KindsFor

func (*FastRESTMapper) RESTMapping 

func (m *FastRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (*meta.RESTMapping, error)

RESTMapping implements Mapper.RESTMapping

func (*FastRESTMapper) RESTMappings 

func (m *FastRESTMapper) RESTMappings(gk schema.GroupKind, versions ...string) ([]*meta.RESTMapping, error)

RESTMappings implements Mapper.RESTMappings

func (*FastRESTMapper) ResourceFor 

func (m *FastRESTMapper) ResourceFor(input schema.GroupVersionResource) (schema.GroupVersionResource, error)

ResourceFor implements Mapper.ResourceFor

func (*FastRESTMapper) ResourceSingularizer 

func (m *FastRESTMapper) ResourceSingularizer(resource string) (string, error)

ResourceSingularizer implements Mapper.ResourceSingularizer

func (*FastRESTMapper) ResourcesFor 

func (m *FastRESTMapper) ResourcesFor(input schema.GroupVersionResource) ([]schema.GroupVersionResource, error)

ResourcesFor implements Mapper.ResourcesFor

type PersistentError 

type PersistentError struct {
	Reason  string
	Message string
}

PersistentError is an error type that tells the reconcile to avoid requeueing.

func NewPersistentError 

func NewPersistentError(reason string, message string) *PersistentError

NewPersistentError returns a new persistent error.

func (*PersistentError) Error 

func (e *PersistentError) Error() string

Error function makes PersistentError implement error interface

type PrintColumn 

type PrintColumn struct {
	Items []string
	Width int
}

PrintColumn is a column in PrintTable

func (*PrintColumn) Pad 

func (c *PrintColumn) Pad(s string) string

Pad adds padding the provided string to make it print nicely as a table cell

func (*PrintColumn) RecalcWidth 

func (c *PrintColumn) RecalcWidth()

RecalcWidth can be called to recalculate the column width after manual updates are made

type PrintTable 

type PrintTable struct {
	Columns []PrintColumn
	NumRows int
}

PrintTable is a table for printing with fixed column width and padding

func (*PrintTable) AddRow 

func (t *PrintTable) AddRow(items ...string) *PrintTable

AddRow adds a row of headers/values to the table

func (*PrintTable) RecalcWidth 

func (t *PrintTable) RecalcWidth() *PrintTable

RecalcWidth can be called to recalculate the columns width after manual updates are made

func (*PrintTable) String 

func (t *PrintTable) String() string

Source Files

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