---
- set_fact: manage_file_users=false

- set_fact: manage_file_users=true
  when: es_users is defined and es_users.file is defined and es_users.file.keys() | list | length > 0

# Users migration from elasticsearch < 6.3 versions
- name: Check if old users file exists
  stat:
    path: '{{ es_conf_dir }}/x-pack/users'
  register: old_users_file
  check_mode: no

- name: Copy the old users file from the old depreacted location
  copy:
    remote_src: yes
    force: no # only copy it if the new path doesn't exist yet
    src: "{{ es_conf_dir }}/x-pack/users"
    dest: "{{ es_conf_dir }}/users"
    group: "{{ es_group }}"
    owner: "{{ es_user }}"
  when: old_users_file.stat.exists
# End of users migrations

- name: Create the users file if it doesn't exist
  copy:
    content: ""
    dest: "{{ es_conf_dir }}/users"
    force: no # this ensures it only creates it if it does not exist
    group: "{{ es_group }}"
    owner: "{{ es_user }}"
    mode: 0555

#List current users
- name: List Users
  become: yes
  shell: cat {{ es_conf_dir }}/users | awk -F':' '{print $1}'
  register: current_file_users
  when: manage_file_users
  changed_when: False
  check_mode: no

- name: set fact users_to_remove
  set_fact: users_to_remove={{ current_file_users.stdout_lines | difference (es_users.file.keys() | list) }}
  when: manage_file_users

#Remove users
- name: Remove Users
  become: yes
  command: >
    {{es_home}}/bin/elasticsearch-users userdel {{item}}
  with_items: "{{users_to_remove | default([])}}"
  when: manage_file_users
  environment:
    CONF_DIR: "{{ es_conf_dir }}"
    ES_PATH_CONF: "{{ es_conf_dir }}"
    ES_HOME: "{{es_home}}"

- name: set fact users_to_add
  set_fact: users_to_add={{ es_users.file.keys() | list | difference (current_file_users.stdout_lines) }}
  when: manage_file_users

#Add users
- name: Add Users
  become: yes
  command: >
    {{es_home}}/bin/elasticsearch-users useradd {{item}} -p {{es_users.file[item].password}}
  with_items: "{{ users_to_add | default([]) }}"
  when: manage_file_users
  no_log: True
  environment:
    CONF_DIR: "{{ es_conf_dir }}"
    ES_PATH_CONF: "{{ es_conf_dir }}"
    ES_HOME: "{{es_home}}"

#Set passwords for all users declared - Required as the useradd will not change existing user passwords
- name: Set User Passwords
  become: yes
  command: >
    {{es_home}}/bin/elasticsearch-users passwd {{ item }} -p {{es_users.file[item].password}}
  with_items: "{{ es_users.file.keys() | list }}"
  when: manage_file_users
  #Currently no easy way to figure out if the password has changed or to know what it currently is so we can skip.
  changed_when: False
  no_log: True
  environment:
    CONF_DIR: "{{ es_conf_dir }}"
    ES_PATH_CONF: "{{ es_conf_dir }}"
    ES_HOME: "{{es_home}}"

- name: set fact users_roles
  set_fact: users_roles={{es_users.file | extract_role_users () }}
  when: manage_file_users

#Copy Roles files
- name: Copy roles.yml File for Instance
  become: yes
  template: src=security/roles.yml.j2 dest={{ es_conf_dir }}/roles.yml owner={{ es_user }} group={{ es_group }} mode=0644 force=yes
  when: es_roles is defined and es_roles.file is defined

#Overwrite users_roles file
- name: Copy User Roles
  become: yes
  template: src=security/users_roles.j2 dest={{ es_conf_dir }}/users_roles owner={{ es_user }} group={{ es_group }} mode=0644 force=yes
  when: manage_file_users and users_roles | length > 0