util

package
v0.0.0-...-4f3658d Latest Latest
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 Go to latest Published: Jun 10, 2020 License: Apache-2.0 Imports: 10 Imported by: 0

Documentation

Overview

Package util implements various utility functions used in both testing and implementation of Kubernetes. Package util may not depend on any other package in the Kubernetes package tree.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AllPtrFieldsNil 

func AllPtrFieldsNil(obj interface{}) bool

Tests whether all pointer fields in a struct are nil. This is useful when, for example, an API struct is handled by plugins which need to distinguish "no plugin accepted this spec" from "this spec is empty".

This function is only valid for structs and pointers to structs. Any other type will cause a panic. Passing a typed nil pointer will return true.

func CompileRegexps 

func CompileRegexps(regexpStrings []string) ([]*regexp.Regexp, error)

Takes a list of strings and compiles them into a list of regular expressions

func ExecuteTemplate 

func ExecuteTemplate(w io.Writer, templateText string, data interface{}) error

ExecuteTemplate executes templateText with data and output written to w.

func ExecuteTemplateToString 

func ExecuteTemplateToString(templateText string, data interface{}) (string, error)

func FileExists 

func FileExists(filename string) (bool, error)

func Int32Ptr 

func Int32Ptr(i int32) *int32

Int32Ptr returns a pointer to an int32

func Int32PtrDerefOr 

func Int32PtrDerefOr(ptr *int32, def int32) int32

Int32PtrDerefOr dereference the int32 ptr and returns it i not nil, else returns def.

func IntPtr 

func IntPtr(i int) *int

IntPtr returns a pointer to an int

func IntPtrDerefOr 

func IntPtrDerefOr(ptr *int, def int) int

IntPtrDerefOr dereference the int ptr and returns it i not nil, else returns def.

func ReadDirNoStat 

func ReadDirNoStat(dirname string) ([]string, error)

ReadDirNoStat returns a string of files/directories contained in dirname without calling lstat on them.

func Umask 

func Umask(mask int) (old int, err error)

func UsingSystemdInitSystem 

func UsingSystemdInitSystem() bool

Detects if using systemd as the init system Please note that simply reading /proc/1/cmdline can be misleading because some installation of various init programs can automatically make /sbin/init a symlink or even a renamed version of their main program. TODO(dchen1107): realiably detects the init system using on the system: systemd, upstart, initd, etc.

Types

This section is empty.

Source Files

View all Source files

Directories

Path Synopsis
Package bandwidth provides utilities for bandwidth shaping
 Package bandwidth provides utilities for bandwidth shaping
Package chown provides an interface and implementations for things that run run the chmod system call.
 Package chown provides an interface and implementations for things that run run the chmod system call.
Package chown provides utilities to chown a path
 Package chown provides utilities to chown a path
Package config provides utility objects for decoupling sources of configuration and the actual configuration state.
 Package config provides utility objects for decoupling sources of configuration and the actual configuration state.
Package dbus provides an injectable interface and implementations for D-Bus communication
 Package dbus provides an injectable interface and implementations for D-Bus communication
Package errors only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package errors only exists until heapster rebases TODO genericapiserver remove this empty package.
Package exec provides an injectable interface and implementations for running commands.
 Package exec provides an injectable interface and implementations for running commands.
Package framer only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package framer only exists until heapster rebases TODO genericapiserver remove this empty package.
Package goroutinemap implements a data structure for managing go routines by name.
 Package goroutinemap implements a data structure for managing go routines by name.
exponentialbackoff
Package exponentialbackoff contains logic for implementing exponential backoff for GoRoutineMap and NestedPendingOperations.
 Package exponentialbackoff contains logic for implementing exponential backoff for GoRoutineMap and NestedPendingOperations.
Package intstr only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package intstr only exists until heapster rebases TODO genericapiserver remove this empty package.
Package ipconfig provides an interface and implementations for running Windows ipconfig commands.
 Package ipconfig provides an interface and implementations for running Windows ipconfig commands.
Package iptables provides an interface and implementations for running iptables commands.
 Package iptables provides an interface and implementations for running iptables commands.
testing
Package json only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package json only exists until heapster rebases TODO genericapiserver remove this empty package.
Package labels provides utilities to work with Kubernetes labels.
 Package labels provides utilities to work with Kubernetes labels.
Package limitwriter provides a writer that only allows a certain number of bytes to be written.
 Package limitwriter provides a writer that only allows a certain number of bytes to be written.
Package maps has common methods for dealing with common map types.
 Package maps has common methods for dealing with common map types.
Package mount defines an interface to mounting filesystems.
 Package mount defines an interface to mounting filesystems.
net
Package net only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package net only exists until heapster rebases TODO genericapiserver remove this empty package.
sets
Package netsh provides an interface and implementations for running Windows netsh commands.
 Package netsh provides an interface and implementations for running Windows netsh commands.
testing
Package oom implements utility functions relating to out of memory management.
 Package oom implements utility functions relating to out of memory management.
Package procfs implements utility functions relating to the /proc mount.
 Package procfs implements utility functions relating to the /proc mount.
Package rand needed for godep.
 Package rand needed for godep.
Package runtime only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package runtime only exists until heapster rebases TODO genericapiserver remove this empty package.
Package selinux contains wrapper functions for the libcontainer SELinux package.
 Package selinux contains wrapper functions for the libcontainer SELinux package.
Package sets only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package sets only exists until heapster rebases TODO genericapiserver remove this empty package.
types
Package types just provides input types to the set generator.
 Package types just provides input types to the set generator.
Package slice provides utility methods for common operations on slices.
 Package slice provides utility methods for common operations on slices.
testing
package taints implements uitilites for working with taints
 package taints implements uitilites for working with taints
uuid contains uuid generation helpers.
 uuid contains uuid generation helpers.
Package validation only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package validation only exists until heapster rebases TODO genericapiserver remove this empty package.
field
Package field only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package field only exists until heapster rebases TODO genericapiserver remove this empty package.
Package version provides utilities for version number comparisons
 Package version provides utilities for version number comparisons
Package wait only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package wait only exists until heapster rebases TODO genericapiserver remove this empty package.
workqueue
prometheus
Package yaml only exists until heapster rebases TODO genericapiserver remove this empty package.
 Package yaml only exists until heapster rebases TODO genericapiserver remove this empty package.

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