kubespray/roles/etcd/tasks/configure.yml

---
- name: Copy etcd2.service systemd file
  template:
    src: systemd-etcd2.service.j2
    dest: /lib/systemd/system/etcd2.service
    backup: yes
  notify:
    - restart etcd2

- name: Create etcd2 environment vars dir
  file: path=/etc/systemd/system/etcd2.service.d state=directory

- name: Write etcd2 config file
  template: src=etcd2.j2 dest=/etc/systemd/system/etcd2.service.d/10-etcd2.conf backup=yes
  notify:
    - restart etcd2

- name: Ensure etcd2 is running
  service: name=etcd2 state=started enabled=yes