mirror of https://github.com/k3s-io/k3s
51 lines
1.0 KiB
Markdown
51 lines
1.0 KiB
Markdown
# netns - network namespaces in go #
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The netns package provides an ultra-simple interface for handling
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network namespaces in go. Changing namespaces requires elevated
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privileges, so in most cases this code needs to be run as root.
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## Local Build and Test ##
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You can use go get command:
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go get github.com/vishvananda/netns
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Testing (requires root):
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sudo -E go test github.com/vishvananda/netns
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## Example ##
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```go
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package main
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import (
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"fmt"
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"net"
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"runtime"
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"github.com/vishvananda/netns"
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)
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func main() {
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// Lock the OS Thread so we don't accidentally switch namespaces
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runtime.LockOSThread()
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defer runtime.UnlockOSThread()
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// Save the current network namespace
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origns, _ := netns.Get()
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defer origns.Close()
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// Create a new network namespace
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newns, _ := netns.New()
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defer newns.Close()
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// Do something with the network namespace
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ifaces, _ := net.Interfaces()
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fmt.Printf("Interfaces: %v\n", ifaces)
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// Switch back to the original namespace
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netns.Set(origns)
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}
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```
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