Calico is not a network overlay

roles/network_plugin/templates/calico/calico-node.service.j2

@@ -0,0 +1,23 @@
+[Unit]
+Description=calicoctl node
+After=etcd2.service
+
+[Service]
+EnvironmentFile=/etc/network-environment
+User=root
+PermissionsStartOnly=true
+ExecStartPre={{ bin_dir }}/calicoctl checksystem --fix
+{% if inventory_hostname in groups['kube-node'] %}
+{%    if peer_with_router %}
+ExecStart={{ bin_dir }}/calicoctl node --ip=${DEFAULT_IPV4} --as={{ local_as }} --kubernetes
+{%     else %}
+ExecStart={{ bin_dir }}/calicoctl node --ip=${DEFAULT_IPV4} --kubernetes
+{%     endif %}
+{% else %}
+ExecStart={{ bin_dir }}/calicoctl node --ip=${DEFAULT_IPV4}
+{% endif %}
+RemainAfterExit=yes
+Type=oneshot
+
+[Install]
+WantedBy=multi-user.target

roles/network_plugin/templates/calico/network-environment.j2

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+#! /usr/bin/bash
+# This node's IPv4 address
+CALICO_IPAM=true
+DEFAULT_IPV4={{ 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] }}:4001
+
+# The kubernetes-apiserver location - used by the calico plugin
+KUBE_API_ROOT=http://{{ groups['kube-master'][0] }}:8080/api/v1/
+
+# Location of the calicoctl binary - used by the calico plugin
+CALICOCTL_PATH="{{ bin_dir }}/calicoctl"
+{% endif %}

roles/network_plugin/templates/flannel/flannel-conf.json.j2

@@ -0,0 +1 @@
+{ "Network": "{{ kube_service_addresses }}", "SubnetLen": {{ kube_network_node_prefix }}, "Backend": { "Type": "vxlan" } }

roles/network_plugin/templates/flannel/network-environment.j2

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+FLANNEL_ETCD_PREFIX="--etcd-prefix=/{{ cluster_name }}/network"

roles/network_plugin/templates/flannel/systemd-docker.service.j2

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+[Unit]
+Description=Docker Application Container Engine
+Documentation=http://docs.docker.com
+After=network.target docker.socket flannel.service
+Requires=docker.socket
+
+[Service]
+EnvironmentFile=/run/flannel/subnet.env
+EnvironmentFile=-/etc/default/docker
+ExecStart=/usr/bin/docker -d -H fd:// --bip=${FLANNEL_SUBNET} --mtu=${FLANNEL_MTU} $DOCKER_OPTS
+MountFlags=slave
+LimitNOFILE=1048576
+LimitNPROC=1048576
+LimitCORE=infinity
+
+[Install]
+WantedBy=multi-user.target

roles/network_plugin/templates/flannel/systemd-flannel.service.j2

@@ -0,0 +1,12 @@
+[Unit]
+Description=Flannel Network Overlay
+Documentation=https://coreos.com/flannel/docs/latest
+
+[Service]
+EnvironmentFile=/etc/network-environment
+ExecStart={{ bin_dir }}/flanneld \
+       $FLANNEL_ETCD_PREFIX
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target