---
- name: 'evaluating base_dn'
  set_fact:
    base_dn: 'dc={{ ldap_domain.replace(".", ",dc=") }}'

- name: 'renewing admin password - generation'
  gen_passwd: 'length=32'
  register: new_passwd
  no_log: true

- set_fact:
    password: '{{ new_passwd.passwd }}'
  no_log: true

- name: 'renewing admin password - hashing'
  shell: >
    slappasswd
    -o module-load=pw-sha2
    -h "{SSHA512}"
    -s {{ password | quote }}
  register: new_passwd_hash
  no_log: true

- name: 'renewing admin password - setting RootPW'
  ldap_attr:
    dn: 'olcDatabase={1}mdb,cn=config'
    name: 'olcRootPW'
    values: >-
      {{ new_passwd_hash.stdout }}
    state: 'exact'
  no_log: true

- name: 'renewing admin password - calling ldappasswd'
  ldap_passwd:
    dn: 'cn=admin,{{ base_dn }}'
    passwd: '{{ new_passwd.passwd }}'
    bind_dn: 'cn=admin,{{ base_dn }}'
    bind_pw: '{{ new_passwd.passwd }}'

- name: 'renewing admin password - storing plaintext'
  copy:
    content: '{{ new_passwd.passwd }}'
    dest: '/etc/slapd.secret'

- name: 'renewing admin password - setting fact'
  set_fact:
    ldap_passwd: '{{ new_passwd.passwd }}'
...