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containernetworking-plugins/Documentation/cnitool.md
Casey Callendrello 3ac78df0b6 Add 'Documentation/' from commit '5bb59a12b80dc99552bebf0394a067807f72f947' 
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Overview

The cnitool is a utility that can be used to test a CNI plugin without the need for a container runtime. The cnitool takes a network name and a network namespace and a command to ADD or DEL,.i.e, attach or detach containers from a network. The cnitool relies on the following environment variables to operate properly:

  • NETCONFPATH: This environment variable needs to be set to a directory. It defaults to /etc/cni/net.d. The cnitool searches for CNI configuration files in this directory with the extension *.conf or *.json. It loads all the CNI configuration files in this directory and if it finds a CNI configuration with the network name given to the cnitool it returns the corresponding CNI configuration, else it returns nil.

  • CNI_PATH: For a given CNI configuration cnitool will search for the corresponding CNI plugin in this path.