Provision Wordpress in AWS using Terraform and Ansible

This is a simple project which creates AWS infrastructure (VPC, subnets, ec2 instance, security group) using terraform and provision wordpress in the instance using ansible, after running terraform apply you can directly access the installation page of wordpress from web browser. The ansible role will be run directly after infrastructure creation by terraform. This project consist of following ways to create server and run Wordpress in it.

• Create EC2 and Install LAMP and Wordpress in server.
• Create EC2 and use Docker to run MySQL and Wordpress in server.
• Create EC2, RDS and install Wordpress in EC2 and use RDS for MySQL.
• Create EC2, RDS and install Wordpress in docker container and use RDS for MySQL.

Note:

• Ansible role supports both centos and amazon-linux 2 OS.

How to run

Prerequisites

• Terraform
• Ansible
• Disable strict host key checking in ansible config (change host_key_checking = False in ansible.cfg)

Preparation

• Create and download ssh key from AWS
• Clone the git repository

git clone https://github.com/mathewseby/wordpress.git
cd wordpress

Step to run

• Update vars.tfvars with neccessary data

instance_key_name = "<ec2-instance-key-name>"
ssh-user = "<centos>"
private_key_path = "<ec2-instance-key path>"
instance-type = "<instance-type>"
instance-ami = "<ami id of the instance>"
region = "<aws region to create resources>"

• Update ansible roles variable (sample variable values are added in defaults) in wordpress roles folder), or you can override the variables in playbook.

mysql_root_password: <root password>
wordpress_user_password: <wordpress database user password>
dbhost: <database host>
dbuser: <wordpress database user>
wpdb: <wordpress database name>

Update following variables to change installation method in vars.tfvars

• Create EC2 and Install LAMP and Wordpress in server.

install_type        = "server"  

• Create EC2 and use Docker to run MySQL and Wordpress in server.

install_type        = "docker" 

• Create EC2, RDS and install Wordpress in EC2 and use RDS for MySQL.

install_type        = "server_with_rds" 

• Create EC2, RDS and install Wordpress in EC2 and use RDS for MySQL.

install_type        = "with_docker_rds" 

• Configure aws cli, use access key and secret key

aws configure

• Run terraform

terraform init
terraform apply --var-file vars.tfvars