netns

Documentation

Overview

Package netns supports running unit tests in separated transient network namespaces.

Usage

Just call EnterTransientNetns and defer its return value.

  import "github.com/notwork/netns"

  It("tests something inside a temporary network namespace", func() {
	defer netns.EnterTransientNetns()() // !!! double ()
	// ...
  })

Index

• func EnterTransientNetns() func()

Functions

func EnterTransientNetns

func EnterTransientNetns() func()

EnterTransientNetns creates and enters a new (and isolated) network namespace, returning a function that needs to be defer'ed in order to correctly switch the calling go routine and its locked OS-level thread back when the caller itself returns.

In case the caller cannot be switched back correctly, the defer'ed clean up will panic with an error description.