k8snthw-etcd-tasks.yaml

- name: Create etcd config dir
  file: path=/etc/etcd state=directory
  become: true
  
- name: Copy certificates
  copy:
    src: "{{ playbook_dir }}/../cert/{{ item }}"
    dest: "/etc/etcd/"
  become: true
  with_items:
    - ca.pem
    - kubernetes.pem
    - kubernetes-key.pem

- name: Download etcd binaries
  get_url:
    url: "https://github.com/coreos/etcd/releases/download/v3.0.1/etcd-v3.0.-linux-amd64.tar.gz"
    dest: "/usr/local/src"
  become: true

- name: Unpack etcd binaries
  unarchive:
    copy: no
    src: "/usr/local/src/etcd-v3.0.-linux-amd64.tar.gz"
    dest: "/usr/local/src/"
    creates: "/usr/local/src/etcd-v3.0.-linux-amd64/etcd"
  become: true

- name: Copy etcd binaries
  copy:
    remote_src: true
    src: "/usr/local/src/etcd-v3.0.-linux-amd64/{{ item }}"
    dest: "/usr/bin"
    owner: root
    group: root
    mode: 0755
  with_items:
    - etcd
    - etcdctl
  become: true

- name: Create etcd data dir
  file: path=/var/lib/etcd state=directory
  become: true

- name: Add etcd systemd unit
  template:
    src: etcd.service.j2
    dest: /etc/systemd/system/etcd.service
    mode: 700
  become: true

- name: Reload systemd
  command: systemctl daemon-reload
  become: true

- name: Enable etcd service
  command: systemctl enable etcd
  become: true

- name: Restart etcd
  service:
    name: etcd
    state: restarted
    enabled: yes
  become: true

- name: Wait for etcd listening
  wait_for: port=2379 timeout=60

- name: Verify etcd cluster health
  shell: etcdctl --ca-file=/etc/etcd/ca.pem cluster-health
  register: cmd_result
  until: cmd_result.stdout.find("cluster is healthy") != -1
  retries: 5
  delay: 5