Highly-Available WordPress Setup inside AWS VPC using Terraform & Ansible

In this post,we’ll create the Infrastructure for Highly-Available WordPress website over AWS using Terraform and then install the WordPress using Ansible. If you don’t know about the Terraform, please check this link.

We’ll use the Terraform to create the fully operational AWS VPC infrastructure(subnets,routeing tables,igw etc), it will also create everything that need to be for creating EC2 and RDS instances (security key, security group, subnet group). It will also create the Elastic Load Balancer and add the EC2 instance(s) automatically to it as well as creating the Route53 entry for this wordpress site and add the ELB alias to it.

Ansible will be used to deploy the wordpress on the EC2 instances that have been created via Terraform, that will be fault tolerant and highly available.

Requirements:

• Terraform

• Ansible

• AWS admin access

Tools Used:

Highly-Available WordPress Installation inside AWS VPC using Ansible

In this post,we’ll learn that how we can do Highly-Available WordPress Installation inside AWS VPC using Ansible, for this purpose we’ll be using Ubuntu 14.04 LTS EC2 Instances but you can modify it easily for RPM-based systems. If you don’t know about the Ansible, please check this link.

The purpose of Ansible AWS VPC Highly-Available WordPress(AAVHAW) is to create a fully operational AWS VPC infrastructure(subnets,routeing tables,igw etc), it will also create everything that need to be for creating EC2 and RDS instances (security key, security group, subnet group).

It will also create the Elastic Load Balancer and add the EC2 instance(s) automatically that were created using this playbook as well as creating the Route53 entry for this wordpress site and add the ELB alias to it.

Beside that, this playbook will also run the essential role(updating and patching the OS, configuring NTP,creating users etc) and deploy the wordpress on them, that will be fault tolerant and highly available.

NOTE: The part of the play, ‘webserver.yml‘, is not idempotent. Every time it run, will create a new EC2 instances.

Installing the WordPress on Ubuntu using Ansible

In this post,we’ll learn that how we can install the WordPress on Ubuntu 14.04 LTS using Ansible. If you don’t know about Ansible, please check this link.

If you want manual step by step procedure to install the WordPress on Ubuntu, please refer this post.

Note: This role depends on LEMP Stack role, it will automatically install the LEMP Stack before installing the WordPress.

First, download this Repository from the GitHub:

git clone https://github.com/arbabnazar/ansible-roles.git

Note: If git is not installed then you can simply download the zip file.

How To Install WordPress with Nginx in Ubuntu Server 14.04 LTS

Install the LEMP stack(Linux, Nginx, Mysql, PHP) with the command below:

sudo apt-get install nginx mysql-server php5-fpm php5-mysql

Note: Please set the MySQL root password, when it will prompt for it during the installation of MySQL-Server.

How To Install WordPress in Ubuntu Server 12.04 LTS

Install the LAMP Server (Linux,Apache, Mysql, PHP) with the command below:

sudo apt-get install lamp-server^

It will prompt for mysql server root password, enter the root password: