Does not work as delegate for another CNI plugin

[mhristache]

I am trying to use Romana as a delegate plugin for Multus but it seems Romana must be the main plugin so this setup does not work.

Details:

1. Add a Multus CNI config using Romana as delegate by creating /etc/cni/net.d/00-multus-cni.conf with the following content:

{
    "name": "multus-cni",
    "type": "multus",
    "kubeconfig": "/etc/kubernetes/admin.conf",
    "delegates": [{
        "masterplugin": true,
        "cniVersion": "0.3.0",
		"name": "romana-k8s-network",
		"type": "romana",
		"mtu": 1500,
		"kubernetes_config": "/var/run/romana/kubeconfig",
		"romana_host_name": "kh1",
		"segment_label_name": "romana.io/segment",
		"use_policy": false,
		"romana_client_config" : {
			"EtcdEndpoints" : ["10.96.0.88:12379"]
		},
		"ipam": {
			"type": "romana-ipam"
		}
    }]
}

2. Init kubernetes

kubeadm init

3. Install Romana

kubectl apply -f https://raw.githubusercontent.com/romana/romana/master/containerize/specs/romana-kubeadm.yml

When I check the status I can see that romana-agent does not start and in the logs it complains that the CNI config is not installed as another one already exist:

{"log":"Cluster "kubernetes" set.\n","stream":"stdout","time":"2018-05-04T14:44:32.805415156Z"}
{"log":"User "romana-agent" set.\n","stream":"stdout","time":"2018-05-04T14:44:32.962111034Z"}
{"log":"Context "romana-agent@kubernetes" modified.\n","stream":"stdout","time":"2018-05-04T14:44:33.097772721Z"}
{"log":"Switched to context "romana-agent@kubernetes".\n","stream":"stdout","time":"2018-05-04T14:44:33.221845446Z"}
{"log":"Existing CNI configuration found on host:\n","stream":"stdout","time":"2018-05-04T14:44:33.317507742Z"}
{"log":"00-multus.conf\n","stream":"stdout","time":"2018-05-04T14:44:33.317539262Z"}
{"log":"Internal Error: cni config not installed as other configs exist\n","stream":"stdout","time":"2018-05-04T14:44:33.317546