Documentation
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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 ¶
- func AllPtrFieldsNil(obj interface{}) bool
- func CompileRegexps(regexpStrings []string) ([]*regexp.Regexp, error)
- func ExecuteTemplate(w io.Writer, templateText string, data interface{}) error
- func ExecuteTemplateToString(templateText string, data interface{}) (string, error)
- func FileExists(filename string) (bool, error)
- func Int32Ptr(i int32) *int32
- func Int32PtrDerefOr(ptr *int32, def int32) int32
- func IntPtr(i int) *int
- func IntPtrDerefOr(ptr *int, def int) int
- func ReadDirNoStat(dirname string) ([]string, error)
- func UsingSystemdInitSystem() bool
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 ¶
Takes a list of strings and compiles them into a list of regular expressions
func ExecuteTemplate ¶
ExecuteTemplate executes templateText with data and output written to w.
func ExecuteTemplateToString ¶
func FileExists ¶
func Int32PtrDerefOr ¶
Int32PtrDerefOr dereference the int32 ptr and returns it i not nil, else returns def.
func IntPtrDerefOr ¶
IntPtrDerefOr dereference the int ptr and returns it i not nil, else returns def.
func ReadDirNoStat ¶
ReadDirNoStat returns a string of files/directories contained in dirname without calling lstat on them.
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
Directories
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| Path | Synopsis |
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Package bandwidth provides utilities for bandwidth shaping
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Package bandwidth provides utilities for bandwidth shaping |
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Package config provides utility objects for decoupling sources of configuration and the actual configuration state.
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Package config provides utility objects for decoupling sources of configuration and the actual configuration state. |
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Package dbus provides an injectable interface and implementations for D-Bus communication
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Package dbus provides an injectable interface and implementations for D-Bus communication |
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Package exec provides an injectable interface and implementations for running commands.
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Package exec provides an injectable interface and implementations for running commands. |
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Package goroutinemap implements a data structure for managing go routines by name.
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Package goroutinemap implements a data structure for managing go routines by name. |
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exponentialbackoff
Package exponentialbackoff contains logic for implementing exponential backoff for GoRoutineMap and NestedPendingOperations.
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Package exponentialbackoff contains logic for implementing exponential backoff for GoRoutineMap and NestedPendingOperations. |
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Package ipconfig provides an interface and implementations for running Windows ipconfig commands.
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Package ipconfig provides an interface and implementations for running Windows ipconfig commands. |
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Package iptables provides an interface and implementations for running iptables commands.
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Package iptables provides an interface and implementations for running iptables commands. |
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Package labels provides utilities to work with Kubernetes labels.
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Package labels provides utilities to work with Kubernetes labels. |
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Package limitwriter provides a writer that only allows a certain number of bytes to be written.
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Package limitwriter provides a writer that only allows a certain number of bytes to be written. |
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Package maps has common methods for dealing with common map types.
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Package maps has common methods for dealing with common map types. |
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Package mount defines an interface to mounting filesystems.
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Package mount defines an interface to mounting filesystems. |
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net
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Package netsh provides an interface and implementations for running Windows netsh commands.
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Package netsh provides an interface and implementations for running Windows netsh commands. |
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Package oom implements utility functions relating to out of memory management.
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Package oom implements utility functions relating to out of memory management. |
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Package procfs implements utility functions relating to the /proc mount.
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Package procfs implements utility functions relating to the /proc mount. |
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Package selinux contains wrapper functions for the libcontainer SELinux package.
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Package selinux contains wrapper functions for the libcontainer SELinux package. |
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Package slice provides utility methods for common operations on slices.
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Package slice provides utility methods for common operations on slices. |
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package taints implements uitilites for working with taints
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package taints implements uitilites for working with taints |
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Package tolerations provides utilities to work with pod spec tolerations.
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Package tolerations provides utilities to work with pod spec tolerations. |
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Package version provides utilities for version number comparisons
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Package version provides utilities for version number comparisons |
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workqueue
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