Move CNI config and add MTU support for calico-cni

- Move CNI configuration creation for Calico to appropriate
network_plugin role from kubernetes/node.
- Add support for MTU configuration in Calico.

roles/kubernetes/node/tasks/main.yml

@@ -4,13 +4,6 @@
 - include: nginx-proxy.yml
   when: is_kube_master == false and loadbalancer_apiserver_localhost|default(false)
 
-- name: Write Calico cni config
-  template:
-    src: "cni-calico.conf.j2"
-    dest: "/etc/cni/net.d/10-calico.conf"
-    owner: kube
-  when: kube_network_plugin == "calico"
-
 - name: Write kubelet config file
   template: src=kubelet.j2 dest={{ kube_config_dir }}/kubelet.env backup=yes
   notify:

roles/kubernetes/node/templates/cni-calico.conf.j2

@@ -1,20 +0,0 @@
-{
-  "name": "calico-k8s-network",
-  "type": "calico",
-  "etcd_endpoints": "{{ etcd_access_endpoint }}",
-  "etcd_cert_file": "{{ etcd_cert_dir }}/node.pem",
-  "etcd_key_file": "{{ etcd_cert_dir }}/node-key.pem",
-  "etcd_ca_cert_file": "{{ etcd_cert_dir }}/ca.pem",
-  "log_level": "info",
-  "ipam": {
-    "type": "calico-ipam"
-  },
-{% if enable_network_policy is defined and enable_network_policy == True %}
-  "policy": {
-    "type": "k8s"
-  },
-{% endif %}
-  "kubernetes": {
-    "kubeconfig": "{{ kube_config_dir }}/node-kubeconfig.yaml"
-  }
-}