util

Documentation

Index

• Constants
• Variables
• func EnsureDirectoryExist(dirName string) error
• func FindInPath(binary string, paths []string) (string, error)
• func GenURL(url string) string
• func GetContainerStatusFromPod(pod *corev1.Pod, cond func(corev1.ContainerStatus) bool) *corev1.ContainerStatus
• func GetHostname(hostnameOverride string) (string, error)
• func ListK8sNodes(kubectlPath, labels string) ([]string, error)
• func OpenDB(dsn string, maxIdleConns int) (*sql.DB, error)
• func ParseTemplate(strtmpl string, obj interface{}) ([]byte, error)
• func RandString(n int) string
• func ShowMasterCommitTS(dsn string) (int64, error)
• func Sleep(ctx context.Context, sleepTime time.Duration)

Constants

const (
	// LabelNodeRoleMaster specifies that a node is a master
	LabelNodeRoleMaster = "node-role.kubernetes.io/master"
)

Variables

var ExecutableFileExtensions = []string{""}

Valid file extensions for plugin executables.

Functions

func EnsureDirectoryExist

func EnsureDirectoryExist(dirName string) error

EnsureDirectoryExist create directory if does not exist

func FindInPath

func FindInPath(binary string, paths []string) (string, error)

FindInPath returns the full path of the binary by searching in the provided path

func GenURL

func GenURL(url string) string

GenURL adds 'http' prefix for URL

func GetContainerStatusFromPod

func GetContainerStatusFromPod(pod *corev1.Pod, cond func(corev1.ContainerStatus) bool) *corev1.ContainerStatus

func GetHostname

func GetHostname(hostnameOverride string) (string, error)

GetHostname returns OS's hostname if 'hostnameOverride' is empty; otherwise, return 'hostnameOverride'.

func ListK8sNodes

func ListK8sNodes(kubectlPath, labels string) ([]string, error)

ListK8sNodes returns k8s nodes base on node labels

func OpenDB

func OpenDB(dsn string, maxIdleConns int) (*sql.DB, error)

OpenDB opens db

func ParseTemplate

func ParseTemplate(strtmpl string, obj interface{}) ([]byte, error)

ParseTemplate validates and parses passed as argument template

func RandString

func RandString(n int) string

RandString reference: http://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-golang

func ShowMasterCommitTS

func ShowMasterCommitTS(dsn string) (int64, error)

Show master commit ts of TiDB

func Sleep

func Sleep(ctx context.Context, sleepTime time.Duration)

Sleep defines special `sleep` with context