path: root/roles/sshd/tasks/sync_keys.yml

- name: retrieve all existing users
  shell: cut -d ":" -f 1 /etc/passwd
  register: sshd_users
  changed_when: false

- name: bind retrieved users output lines to list
  set_fact:
    sshd_users: "{{ sshd_users.stdout_lines }}"

- name: get ssh keys for all user
  find:
    paths: "{{ inventory_dir }}/files/pubkeys"
    pattern: "*.pub"
    recurse: true
    file_type: link
  register: keys
  delegate_to: localhost

- name: show pubkeys
  debug:
    msg: |
      {% for key in keys.files %}
      {{ key.path }}
      {% endfor %}
  run_once: true
  delegate_to: localhost

- name: synchronize ssh keys
  authorized_key:
    user: "{{ item.path | dirname | basename }}"
    state: present
    key: "{{ lookup('file', item.path) }}"
  when: item.path | dirname | basename in sshd_users
  loop: "{{ keys.files }}"
  loop_control:
    label: "{{ item.path }}"

- name: get users homedir
  shell: echo $(getent passwd "{{ item.path | dirname | basename }}" | cut -d ":" -f 6) "{{ item.path | dirname | basename }}"
  register: sshd_homedirs
  when: item.path | dirname | basename in sshd_users
  loop: "{{ keys.files }}"
  changed_when: false
  loop_control:
    label: "{{ item.path | dirname | basename }}"

- name: clean users homedir result
  set_fact:
    sshd_homedirs: "[{% for dir in sshd_homedirs.results if dir.stdout is defined %}\"{{ dir.stdout }}\", {% endfor %}]"

- name: make users homedir unique
  set_fact:
    sshd_homedirs: "{{ sshd_homedirs | unique }}"

- name: show sshd homedirs for users
  debug:
    var: sshd_homedirs

- name: chown ssh file to correct user
  file:
    path: "{{ item.split(' ')[0] }}/.ssh/authorized_keys"
    owner: "{{ item.split(' ')[1] }}"
    mode: "0600"
  ignore_errors: true
  when: item.split(" ")[1] in sshd_users
  loop: "{{ sshd_homedirs }}"
  loop_control:
    label: "{{ item }}"