Configure network-environment with a single template

roles/network_plugin/templates/network-environment.j2

@@ -0,0 +1,23 @@
+#! /usr/bin/bash
+{% if kube_network_plugin == "calico" %}
+# This node's IPv4 address
+CALICO_IPAM=true
+DEFAULT_IPV4={{ip | default(ansible_default_ipv4.address) }}
+
+{% if inventory_hostname in groups['kube-node'] %}
+# The kubernetes master IP
+KUBERNETES_MASTER={{ groups['kube-master'][0] }}
+
+# Location of etcd cluster used by Calico.  By default, this uses the etcd
+# instance running on the Kubernetes Master
+ETCD_AUTHORITY={{ groups['kube-master'][0] }}:2379
+
+# The kubernetes-apiserver location - used by the calico plugin
+KUBE_API_ROOT=http://{{ groups['kube-master'][0] }}:{{kube_apiserver_insecure_port}}/api/v1/
+
+# Location of the calicoctl binary - used by the calico plugin
+CALICOCTL_PATH="{{ bin_dir }}/calicoctl"
+{% endif %}
+{% else %}
+FLANNEL_ETCD_PREFIX="--etcd-prefix=/{{ cluster_name }}/network"
+{% endif %}