# This role installs and prepares PostgreSQL for KEA DHCP Server

---

- name: adding pub key for postgres repo
  apt_key:
    id: ACCC4CF8
    url: "https://www.postgresql.org/media/keys/ACCC4CF8.asc"
  when: domaenenliste is defined

- name: Add official postgres repo
  apt_repository:
    repo: "deb http://apt.postgresql.org/pub/repos/apt/ {{ansible_distribution_release}}-pgdg main"
  when: domaenenliste is defined

- name: Install PostgreSQL
  apt:
    name: "{{item}}"
    update_cache: yes
    cache_valid_time: 1800
    state: present
  with_items:
    - postgresql-9.5
    - python-psycopg2
    - python3-psycopg2
    - sudo
  when: domaenenliste is defined

- name: Configure PostgreSQL
  template:
    src: "{{item}}"
    dest: "/etc/postgresql/9.5/main/{{item[:-3]}}"
  with_items:
    - postgresql.conf.j2
    - pg_ctl.conf.j2
    - environment.j2
    - pg_hba.conf.j2
    - pg_ident.conf.j2
  notify: restart postgres
  when: domaenenliste is defined

- name: Create database for dhcp leases
  postgresql_db:
    name: kea_leases
  become: yes
  become_user: postgres
  register: _kea_leses_db_created
  when: domaenenliste is defined

- name: Create kea user and grant all privileges to kea_leases database
  postgresql_user:
    db: kea_leases
    name: kea
    password: "{{kea_postgres_pw}}"
    priv: ALL
  become: yes
  become_user: postgres
  when: domaenenliste is defined

- name: Initialize kea_leases database
  shell: "kea-admin lease-init pgsql -u kea -p {{kea_postgres_pw}} -n kea_leases"
  when:
    - domaenenliste is defined
    - "_kea_leses_db_created.changed == True"

- name: enable PostreSQL service
  service: name=postgresql enabled=yes state=started
  when: domaenenliste is defined