Issue #146: Add PostgreSQL support.

.travis.yml

@@ -11,14 +11,23 @@ env:
       IP: 192.168.88.88
       DRUPALVM_DIR: /var/www/drupalvm
   matrix:
+    # Defaults - Ubuntu 16.04.
     - distro: ubuntu1604
       init: /sbin/init
       run_opts: "--privileged"
+    # Nginx and Drush make file test - Ubuntu 16.04.
     - distro: ubuntu1604
       init: /sbin/init
       run_opts: "--privileged"
       local_config: tests/ubuntu-16-nginx.config.yml
       config_dir: /var/www/drupalvm/config
+    # PostgreSQL - Ubuntu 16.04.
+    - distro: ubuntu1604
+      init: /sbin/init
+      run_opts: "--privileged"
+      local_config: tests/ubuntu-16-postgres.config.yml
+      config_dir: /var/www/drupalvm/config
+    # Defaults - CentOS 7.
     - distro: centos7
       init: /usr/lib/systemd/systemd
       run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"

README.md

@@ -10,7 +10,7 @@ It will install the following on an Ubuntu 16.04 (by default) linux VM:
 
   - Apache 2.4.x (or Nginx 1.x)
   - PHP 7.0.x (configurable)
-  - MySQL 5.7.x
+  - MySQL 5.7.x (or PostgreSQL 9.x)
   - Drush (configurable)
   - Drupal 7.x, or 8.x.x (configurable)
   - Optional:

default.config.yml

@@ -42,6 +42,9 @@ force_ansible_local: false
 # The web server software to use. Can be either 'apache' or 'nginx'.
 drupalvm_webserver: apache
 
+# The database system to use. Can be either 'mysql' or 'pgsql'.
+drupalvm_database: mysql
+
 # Set this to 'false' if you are using a different site deployment strategy and
 # would like to configure 'vagrant_synced_folders' and 'apache_vhosts' manually.
 build_makefile: false
@@ -68,9 +71,9 @@ install_site: true
 
 # Required Drupal settings.
 drupal_core_path: "{{ drupal_composer_install_dir }}/web"
-drupal_mysql_user: drupal
-drupal_mysql_password: drupal
-drupal_mysql_database: drupal
+drupal_db_user: drupal
+drupal_db_password: drupal
+drupal_db_name: drupal
 
 # Settings for installing a Drupal site if 'install_site:' is 'true'.
 drupal_major_version: 8
@@ -161,18 +164,26 @@ nginx_hosts:
 nginx_remove_default_vhost: true
 nginx_ppa_use: true
 
-# MySQL Databases and users. If 'install_site' is 'true', first database will
-# be used for the site.
+# MySQL databases and users.
 mysql_databases:
-  - name: "{{ drupal_mysql_database }}"
+  - name: "{{ drupal_db_name }}"
     encoding: utf8mb4
     collation: utf8mb4_general_ci
 
 mysql_users:
-  - name: "{{ drupal_mysql_user }}"
+  - name: "{{ drupal_db_user }}"
     host: "%"
-    password: "{{ drupal_mysql_password }}"
-    priv: "{{ drupal_mysql_database }}.*:ALL"
+    password: "{{ drupal_db_password }}"
+    priv: "{{ drupal_db_name }}.*:ALL"
+
+# PostgreSQL databases and users.
+postgresql_databases:
+  - name: "{{ drupal_db_name }}"
+
+postgresql_users:
+  - name: "{{ drupal_db_user }}"
+    password: "{{ drupal_db_password }}"
+    priv: "ALL"
 
 # Comment out any extra utilities you don't want to install. If you don't want
 # to install *any* extras, set this value to an empty set, e.g. `[]`.

docs/extras/postgresql.md

@@ -0,0 +1,9 @@
+Since Drupal VM is built in a modular fashion, you can swap out the database engine and use [PostgreSQL](https://www.postgresql.org/) instead of MySQL (as long as the version of Drupal you're using supports it!).
+
+To switch from MySQL to PostgreSQL, switch the `drupalvm_database` setting in your local `config.yml` to `pgsql`:
+
+```yaml
+drupalvm_database: mysql
+```
+
+For more PostgreSQL configuration options, see the README included with the [`geerlingguy.postgresql](https://galaxy.ansible.com/geerlingguy/postgresql/) Ansible role.

examples/prod/prod.config.yml

@@ -13,7 +13,7 @@ apache_vhosts:
 # Since this will be a publicly-accessible instance of Drupal VM, make sure you
 # configure secure passwords, especially for Drupal and MySQL!
 drupal_account_pass: admin
-drupal_mysql_password: drupal
+drupal_db_password: drupal
 mysql_root_password: root
 
 # Only install extras that you will need/use on your site, and don't install

mkdocs.yml

@@ -23,6 +23,7 @@ pages:
     - 'Use Drupal Console with Drupal VM': 'extras/drupal-console.md'
     - 'Use Varnish with Drupal VM': 'extras/varnish.md'
     - 'Use MariaDB instead of MySQL': 'extras/mariadb.md'
+    - 'Use PostgreSQL instead of MySQL': 'extras/postgresql.md'
     - 'Use Node.js and NPM': 'extras/nodejs.md'
     - 'Use SSL vhosts with Apache': 'extras/ssl.md'
     - 'View Logs with Pimp my Log': 'extras/pimpmylog.md'

provisioning/playbook.yml

@@ -51,12 +51,14 @@
     - { role: geerlingguy.apache, when: drupalvm_webserver == 'apache' }
     - { role: geerlingguy.apache-php-fpm, when: drupalvm_webserver == 'apache' }
     - { role: geerlingguy.nginx, when: drupalvm_webserver == 'nginx' }
-    - geerlingguy.mysql
     - geerlingguy.php
     - geerlingguy.php-pecl
-    - geerlingguy.php-mysql
     - geerlingguy.composer
     - geerlingguy.drush
+    - { role: geerlingguy.mysql, when: drupalvm_database == 'mysql' }
+    - { role: geerlingguy.php-mysql, when: drupalvm_database == 'mysql' }
+    - { role: geerlingguy.postgresql, when: drupalvm_database == 'pgsql' }
+    - { role: geerlingguy.php-pgsql, when: drupalvm_database == 'pgsql' }
 
     # Conditionally-installed roles.
     - { role: geerlingguy.drupal-console, when: 'drupal_major_version > 7 and "drupalconsole" in installed_extras' }

provisioning/requirements.yml

@@ -45,6 +45,8 @@
   version: 2.0.1
 - src: geerlingguy.php-pecl
   version: 1.2.1
+- src: geerlingguy.php-pgsql
+  version: 1.0.0
 - src: geerlingguy.php-redis
   version: 3.0.0
 - src: geerlingguy.php-xdebug
@@ -55,6 +57,8 @@
   version: 1.0.2
 - src: geerlingguy.postfix
   version: 1.1.0
+- src: geerlingguy.postgresql
+  version: 1.0.0
 - src: geerlingguy.redis
   version: 1.2.0
 - src: geerlingguy.repo-remi

provisioning/roles/geerlingguy.php-pgsql/.travis.yml

@@ -0,0 +1,46 @@
+---
+services: docker
+
+env:
+  - distro: centos7
+    init: /usr/lib/systemd/systemd
+    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+  - distro: ubuntu1604
+    init: /lib/systemd/systemd
+    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+
+before_install:
+  # Pull container.
+  - 'docker pull geerlingguy/docker-${distro}-ansible:latest'
+
+script:
+  - container_id=$(mktemp)
+  # Run container in detached state.
+  - 'docker run --detach --volume="${PWD}":/etc/ansible/roles/role_under_test:ro ${run_opts} geerlingguy/docker-${distro}-ansible:latest "${init}" > "${container_id}"'
+
+  # Install dependencies.
+  - 'docker exec "$(cat ${container_id})" ansible-galaxy install -r /etc/ansible/roles/role_under_test/tests/requirements.yml'
+
+  # Ansible syntax check.
+  - 'docker exec --tty "$(cat ${container_id})" env TERM=xterm ansible-playbook /etc/ansible/roles/role_under_test/tests/test.yml --syntax-check'
+
+  # Test role.
+  - 'docker exec --tty "$(cat ${container_id})" env TERM=xterm ansible-playbook /etc/ansible/roles/role_under_test/tests/test.yml'
+
+  # Test role idempotence.
+  - idempotence=$(mktemp)
+  - docker exec "$(cat ${container_id})" ansible-playbook /etc/ansible/roles/role_under_test/tests/test.yml | tee -a ${idempotence}
+  - >
+    tail ${idempotence}
+    | grep -q 'changed=0.*failed=0'
+    && (echo 'Idempotence test: pass' && exit 0)
+    || (echo 'Idempotence test: fail' && exit 1)
+
+  # Ensure PHP PostgreSQL support is enabled.
+  - docker exec --tty "$(cat ${container_id})" env TERM=xterm php -i | grep 'PostgreSQL Support => enabled'
+
+after_failure:
+  - docker exec --tty "$(cat ${container_id})" env TERM=xterm php -i
+
+notifications:
+  webhooks: https://galaxy.ansible.com/api/v1/notifications/

provisioning/roles/geerlingguy.php-pgsql/README.md

@@ -0,0 +1,42 @@
+# Ansible Role: PHP-PostgreSQL
+
+[![Build Status](https://travis-ci.org/geerlingguy/ansible-role-php-pgsql.svg?branch=master)](https://travis-ci.org/geerlingguy/ansible-role-php-pgsql)
+
+Installs PHP [PostgreSQL](https://www.postgresql.org/) support on Linux.
+
+## Requirements
+
+None.
+
+## Role Variables
+
+Available variables are listed below, along with default values (see `defaults/main.yml`):
+
+    php_enablerepo: ""
+
+(RedHat/CentOS only) If you have enabled any additional repositories (might I suggest geerlingguy.repo-epel or geerlingguy.repo-remi), those repositories can be listed under this variable (e.g. `remi,epel`). This can allow you to install later versions of PHP packages.
+
+    php_pgsql_package: php-pgsql # RedHat
+    php_pgsql_package: php7.0-pgsql # Debian
+
+The PHP PostgreSQL package to install via apt/yum. This should only be overridden if you need to install a unique/special package for PostgreSQL support, as in the case of using software collections on Enterprise Linux.
+
+## Dependencies
+
+  - geerlingguy.php
+
+## Example Playbook
+
+    - hosts: webservers
+      roles:
+        - geerlingguy.postgresql
+        - geerlingguy.php
+        - geerlingguy.php-pgsql
+
+## License
+
+MIT / BSD
+
+## Author Information
+
+This role was created in 2016 by [Jeff Geerling](http://www.jeffgeerling.com/), author of [Ansible for DevOps](https://www.ansiblefordevops.com/).

provisioning/roles/geerlingguy.php-pgsql/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+# Pass in a comma-separated list of repos to use (e.g. "remi,epel").
+php_enablerepo: ""

provisioning/roles/geerlingguy.php-pgsql/meta/main.yml

@@ -0,0 +1,26 @@
+---
+dependencies:
+  - geerlingguy.php
+
+galaxy_info:
+  author: geerlingguy
+  description: PHP PostgreSQL support for Linux.
+  company: "Midwestern Mac, LLC"
+  license: "license (BSD, MIT)"
+  min_ansible_version: 1.8
+  platforms:
+    - name: EL
+      versions:
+      - all
+    - name: Debian
+      versions:
+      - all
+    - name: Ubuntu
+      versions:
+      - all
+  galaxy_tags:
+    - database
+    - web
+    - postgres
+    - php
+    - pgsql

provisioning/roles/geerlingguy.php-pgsql/tasks/main.yml

@@ -0,0 +1,29 @@
+---
+# Variable setup.
+- name: Include OS-specific variables.
+  include_vars: "{{ ansible_os_family }}.yml"
+
+- name: Define php_pgsql_package.
+  set_fact:
+    php_pgsql_package: "{{ __php_pgsql_package }}"
+  when: php_pgsql_package is not defined
+
+# Installation.
+- name: Install PHP PostgreSQL dependencies (RedHat).
+  yum:
+    name: "{{ php_pgsql_package }}"
+    state: present
+    enablerepo: "{{ php_enablerepo }}"
+  notify:
+    - restart webserver
+    - restart php-fpm
+  when: ansible_os_family == 'RedHat'
+
+- name: Install PHP PostgreSQL dependencies (Debian).
+  apt:
+    name: "{{ php_pgsql_package }}"
+    state: present
+  notify:
+    - restart webserver
+    - restart php-fpm
+  when: ansible_os_family == 'Debian'

provisioning/roles/geerlingguy.php-pgsql/tests/requirements.yml

@@ -0,0 +1,5 @@
+---
+- src: geerlingguy.repo-remi
+- src: geerlingguy.apache
+- src: geerlingguy.postgresql
+- src: geerlingguy.php

provisioning/roles/geerlingguy.php-pgsql/tests/test.yml

@@ -0,0 +1,18 @@
+---
+- hosts: all
+
+  vars:
+    php_enablerepo: "remi,remi-php70"
+
+  pre_tasks:
+    - name: Update apt cache.
+      apt: update_cache=yes
+      when: ansible_os_family == 'Debian'
+
+  roles:
+    - role: geerlingguy.repo-remi
+      when: ansible_os_family == 'RedHat'
+    - geerlingguy.apache
+    - geerlingguy.postgresql
+    - geerlingguy.php
+    - role_under_test

provisioning/roles/geerlingguy.php-pgsql/vars/Debian.yml

@@ -0,0 +1,2 @@
+---
+__php_pgsql_package: php7.0-pgsql

provisioning/roles/geerlingguy.php-pgsql/vars/RedHat.yml

@@ -0,0 +1,2 @@
+---
+__php_pgsql_package: php-pgsql