Checking configured CNI plugin

To check the configured CNI plugin in your k8s cluster, list the files here: ls /etc/cni/net.d/ . You may find like a file like this one: 10-flannel.conflist. Below is an example of the contents of that file. You will see that there are two enabled CNI plugins in order: flannel and portmap.

{
	"name": "cbr0",
	"cniVersion": "0.3.1",
	"plugins": [
		{
			"type": "flannel",
			"delegate": {
				"hairpinMode": true,
				"isDefaultGateway": true
			}
		},
		{
			"type": "portmap",
			"capabilities": {
				"portMappings": true
			}
		}
	]
}