cnisample

The cnisample has Kubernetes CNI sample plugins. They are very simple and useful to understand CNI mechanism.

Preparation

You can try to run the sample with cnitool.

Install cnitool:

go get github.com/containernetworking/cni/cnitool

Create a network namespace. This will be called testing:

sudo ip netns add testing

Bash

Bash script depends on jq.

Git clone:

git clone https://github.com/hichihara/cnisample
cd cnisample

Not chain

Try to run CNI ADD command:

sudo CNI_PATH=./bash/ NETCONFPATH=./bash/netconf/cnisample cnitool add mysample /var/run/netns/testing

Try to run CNI DEL command:

sudo CNI_PATH=./bash/ NETCONFPATH=./bash/netconf/cnisample cnitool del mysample /var/run/netns/testing

Chain

Try to run chanin CNI ADD command:

sudo CNI_PATH=./bash/ NETCONFPATH=./bash/netconf/cnisample-chain cnitool add mysample /var/run/netns/testing

Try to run chain CNI DEL command:

sudo CNI_PATH=./bash/ NETCONFPATH=./bash/netconf/cnisample-chain cnitool del mysample /var/run/netns/testing

Golang

Noop

cd go/noop
mkdir bin
go build -o ./bin/noop
sudo CNI_PATH=./bin NETCONFPATH=./netconf cnitool add mysample /var/run/netns/testing

Clean up

sudo ip netns del testing