ansible/roles/postgresql_server/tasks/main.yml

---
#
# Setup postgresql server. 
#
- name: install postgresql server packages
  yum: name={{ item }}  state=installed
  with_items:
  - postgresql-server
  - postgresql-contrib
  - postgresql-plpython
  - python-psycopg2
  tags:
  - packages
  - postgresql

- name: Set kernel shared memory max to a larger value
  sysctl: name=kernel.shmmax value=68719476736
  notify:
  - restart postgresql

- name: Initialize postgres if necessary
  command: /usr/bin/postgresql-setup initdb creates=/var/lib/pgsql/data
  notify:
  - restart postgresql
  tags:
  - postgresql

- name: Set postgresql-server to run on boot
  service: name=postgresql enabled=yes
  ignore_errors: true
  notify:
  - restart postgresql
  tags:
  - service
  - postgresql

- name: Add our postgres config file.
  copy: >
    src={{ item }}
    dest=/var/lib/pgsql/data/{{ item }}
    owner=postgres
  with_items:
  - pg_hba.conf
  - postgresql.conf
  notify:
  - restart postgresql
  tags:
  - config
  - postgresql

- name: Ensure postgres has a place to backup to
  file: dest=/backups state=directory owner=postgres
  tags:
  - postgresql

- name: Copy over backup scriplet
  copy: src=backup-database dest=/usr/local/bin/backup-database mode=0755
  tags:
  - postgresql

- name: Set up some cronjobs to backup databases as configured
  template: >
    src=cron-backup-database
    dest=/etc/cron.d/cron-backup-database-{{ item }}
  with_items:
  - "{{ dbs_to_backup }}"
  when: dbs_to_backup != []
  tags:
  - cron
  - postgresql