kubespray/roles/docker/tasks/systemd-proxies.yml

---
- name: create docker service directory for RHEL family
  file: path=/etc/systemd/system/docker.service.d state=directory
  when: ansible_distribution in ["CentOS","RedHat"] and
        ansible_distribution_major_version >= 7

- name: drop docker environment for RHEL family
  template:
    src: http-proxy.conf.j2
    dest: /etc/systemd/system/docker.service.d/http-proxy.conf
  when: ansible_distribution in ["CentOS","RedHat"] and
        ansible_distribution_major_version >= 7
  register: rheldockerproxy

- name: reload systemctl daemons for RHEL family
  shell: systemctl daemon-reload
  when: rheldockerproxy.changed

- name: restart docker for RHEL family
  service: name=docker state=restarted
  when: rheldockerproxy.changed