New integration tests for postgresql

test/integration/roles/setup_postgresql_db/defaults/main.yml

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+postgresql_service: postgresql
+
+postgresql_packages:
+    - postgresql-server
+    - python-psycopg2

test/integration/roles/setup_postgresql_db/files/pg_hba.conf

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+# !!! This file managed by Ansible. Any local changes may be overwritten. !!!
+
+# Database administrative login by UNIX sockets
+# note: you may wish to restrict this further later
+local   all         postgres                          trust
+
+# TYPE  DATABASE    USER        CIDR-ADDRESS          METHOD
+local   all         all                               md5
+host    all         all         127.0.0.1/32          md5
+host    all         all         ::1/128               md5

test/integration/roles/setup_postgresql_db/tasks/main.yml

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+- include_vars: '{{ item }}'
+  with_first_found:
+    - files:
+        - '{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml'
+        - '{{ ansible_distribution }}-{{ ansible_distribution_version }}.yml'
+        - '{{ ansible_os_family }}.yml'
+        - 'default.yml'
+      paths: '../vars'
+
+# Make sure we start fresh
+- name: remove rpm dependencies for postgresql test
+  yum: name={{ item }} state=absent
+  with_items: postgresql_packages
+  when: ansible_pkg_mgr  ==  'yum'
+
+- name: remove dpkg dependencies for postgresql test
+  apt: name={{ item }} state=absent
+  with_items:  postgresql_packages
+  when: ansible_pkg_mgr  ==  'apt'
+
+- name: remove old db (red hat)
+  command: rm -rf "{{ pg_dir }}"
+  ignore_errors: True
+  when: ansible_os_family == "RedHat"
+
+# Theoretically, pg_dropcluster should work but it doesn't so rm files
+- name: remove old db config (debian)
+  command: rm -rf /etc/postgresql
+  ignore_errors: True
+  when: ansible_os_family == "Debian"
+
+- name: remove old db files (debian)
+  command: rm -rf /var/lib/postgresql
+  ignore_errors: True
+  when: ansible_os_family == "Debian"
+
+- name: install rpm dependencies for postgresql test
+  yum: name={{ item }} state=latest
+  with_items: postgresql_packages
+  when: ansible_pkg_mgr  ==  'yum'
+
+- name: install dpkg dependencies for postgresql test
+  apt: name={{ item }} state=latest
+  with_items:  postgresql_packages
+  when: ansible_pkg_mgr  ==  'apt'
+
+- name: Initialize postgres (systemd)
+  command: postgresql-setup initdb
+  when: ansible_distribution == "Fedora" or (ansible_os_family  == "RedHat" and ansible_distribution_major_version|int >= 7)
+
+- name: Initialize postgres (sysv)
+  command: /sbin/service postgresql initdb
+  when: ansible_os_family == "RedHat" and ansible_distribution_major_version|int <= 6
+
+- name: Iniitalize postgres (upstart)
+  command: /usr/bin/pg_createcluster {{ pg_ver }} main
+  when: ansible_os_family == 'Debian'
+
+- name: Copy pg_hba into place
+  copy: src=pg_hba.conf dest="{{ pg_hba_location }}" owner="postgres" group="root" mode="0644"
+
+- name: Generate locale on Debian systems
+  command: locale-gen pt_BR
+  when: ansible_os_family == 'Debian'
+
+- name: Generate locale on Debian systems
+  command: locale-gen es_MX
+  when: ansible_os_family == 'Debian'
+
+- name: restart postgresql service
+  service: name={{ postgresql_service }} state=restarted

test/integration/roles/setup_postgresql_db/vars/Ubuntu-12.yml

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+postgresql_service: "postgresql"
+
+postgresql_packages:
+  - "postgresql"
+  - "postgresql-common"
+  - "python-psycopg2"
+
+pg_hba_location: "/etc/postgresql/9.1/main/pg_hba.conf"
+pg_dir: "/var/lib/postgresql/9.1/main"
+pg_ver: 9.1
+

test/integration/roles/setup_postgresql_db/vars/Ubuntu-14.yml

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+postgresql_service: "postgresql"
+
+postgresql_packages:
+  - "postgresql"
+  - "postgresql-common"
+  - "python-psycopg2"
+
+pg_hba_location: "/etc/postgresql/9.3/main/pg_hba.conf"
+pg_dir: "/var/lib/postgresql/9.3/main"
+pg_ver: 9.3

test/integration/roles/setup_postgresql_db/vars/default.yml

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+postgresql_service: "postgresql"
+
+postgresql_packages:
+  - "postgresql-server"
+  - "python-psycopg2"
+
+pg_hba_location: "/var/lib/pgsql/data/pg_hba.conf"
+pg_dir: "/var/lib/pgsql/data"