kubespray/roles/etcdctl/tasks/main.yml

---
# To get the binary from container to host, use the etcd data directory mounted
# rw from host into the container.

- name: Check unintentional include of this role
  assert:
    that: etcd_deployment_type == "kubeadm"

- name: Check if etcdctl exist
  stat:
    path: "{{ bin_dir }}/etcdctl"
    get_attributes: no
    get_checksum: no
    get_mime: no
  register: stat_etcdctl

- name: Remove old etcd binary
  block:
  - name: Check version
    command: "{{ bin_dir }}/etcdctl version"
    register: etcdctl_version
    check_mode: no
    changed_when: false

  - name: Remove old binary if version is not OK
    file:
      path: "{{ bin_dir }}/etcdctl"
      state: absent
    when: etcd_version.lstrip('v') not in etcdctl_version.stdout
  when: stat_etcdctl.stat.exists

- name: Check if etcdctl still exist after version check
  stat:
    path: "{{ bin_dir }}/etcdctl"
    get_attributes: no
    get_checksum: no
    get_mime: no
  register: stat_etcdctl

- name: Copy etcdctl script to host
  block:
  - name: Copy etcdctl script to host
    shell: "{{ docker_bin_dir }}/docker cp \"$({{ docker_bin_dir }}/docker ps -qf ancestor={{ etcd_image_repo }}:{{ etcd_image_tag }})\":/usr/local/bin/etcdctl {{ etcd_data_dir }}/etcdctl"
    when: container_manager ==  "docker"

  - name: Copy etcdctl script to host
    shell: >-
      etcd_ctr_id="$({{ bin_dir }}/crictl ps -q --image {{ etcd_image_repo }}:{{ etcd_image_tag }})" &&
      etcd_ctr_pid="$({{ bin_dir }}/crictl inspect --output go-template --template '{{ '{{' }} .info.pid {{ '}}' }}' ${etcd_ctr_id})" &&
      cp /proc/${etcd_ctr_pid}/root/usr/local/bin/etcdctl {{ etcd_data_dir }}/etcdctl
    when: container_manager in ['crio', 'containerd']

  - name: Copy etcdctl to {{ bin_dir }}
    copy:
      src: "{{ etcd_data_dir }}/etcdctl"
      dest: "{{ bin_dir }}"
      remote_src: true
      mode: 0755
  when: not stat_etcdctl.stat.exists

- name: Remove binary in etcd data dir
  file:
    path: "{{ etcd_data_dir }}/etcdctl"
    state: absent

- name: Create etcdctl wrapper script
  template:
    src: etcdctl.sh.j2
    dest: "{{ bin_dir }}/etcdctl.sh"
    mode: 0755