kubespray/roles/etcd/templates/etcd-pod.yml

---
apiVersion: v1
kind: Pod
metadata:
  name: etcd
  namespace: kube-system
spec:
  hostNetwork: true
  containers:
    - name: etcd
      image: quay.io/coreos/etcd:v2.2.2
      resources:
        limits:
          cpu: 100m
          memory: 256M
      args:
{% if inventory_hostname in groups['etcd'] %}
        - --name
        - etcd-{{inventory_hostname}}-master
        - --advertise-client-urls
        - "http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address) }}:2379"
        - --listen-peer-urls
        - http://0.0.0.0:2380
        - --initial-advertise-peer-urls
        - http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address) }}:2380
        - --data-dir
        - /var/etcd/data
        - --initial-cluster-state
        - new
{% else %}
        - --proxy
        - 'on'
{% endif %}
        - --listen-client-urls
        - "http://{{ hostvars[inventory_hostname]['ip'] | default( ansible_default_ipv4.address)  }}:2379,http://127.0.0.1:2379"
        - --initial-cluster
        - "{% for host in groups['etcd'] %}etcd-{{host}}-master=http://{{ hostvars[host]['ip'] | default( hostvars[host]['ansible_default_ipv4']['address'])   }}:2380{% if not loop.last %},{% endif %}{% endfor %}"
        - --initial-cluster-token
        - etcd-k8s-cluster
      ports:
        - name: etcd-client
          containerPort: 2379
          hostPort: 2379
        - name: etcd-peer
          containerPort: 2380
          hostPort: 2380
      volumeMounts:
        - name: varetcd
          mountPath: /var/etcd
          readOnly: false
  volumes:
    - name: varetcd
      hostPath:
        path: /containers/pods/etcd-{{inventory_hostname}}/rootfs/var/etcd