Infrastructure Deployment with Terraform

Software Architecture of the Project

The high-level view of the software architecture of the project consists of the following:

• An Ubuntu virtual machine (or EC2 instance)
• A MySQL database
• A PHP + WordPress installation
• The Apache web server

High-Level Cloud Infrastructure of the Project

Deployment CheckList

• [ X ] Launch and configure private network resources in your cloud provider.
• [ X ] Set up the database as a service.
• [ X ] Implement NFS filesystem as a service.
• [ X ] Deploy and configure the load balancer service.
• [ X ] Gather information on launched services and resources.
• [ X ] Dynamically generate scripts to bootstrap admin and web virtual machine instances.
• [ X ] Launch the admin virtual machine instance with the generated script, updating the OS, installing necessary software, configuring NFS, and setting up WordPress.
• [ X ] Launch web/worker virtual machine instances with the generated script, updating the OS, installing required software, configuring NFS, and starting the webserver.
• [ X ] Register all virtual machine instances with the load balancer for traffic distribution.

Setting Up The Infrastructure

• Navigate into the terrafrom directory in the repo
• To change the default variables used in deploying the infrastructure, go to the 99-variables.tf and 01-setup.tf files to set up your different values.
• Make sure to have Terraform installed; initialize the Terraform project with:

terraform init

• Then, to check the execution plan produced by Terraform for the project:

terraform plan

• If everything is alright, go ahead and deploy the infrastructure with:

terraform apply

Accessing the WordPress Admin Instance

• There will be 3 outputs;
  • the Address to use to access the WordPress application in the instances,
  • the username to use to Login to the WordPress admin instance,
  • the password to use to Login to the WordPress instance labelled sensitive.
• To view the password, run the command terraform output -json. It will output all the above outputs unto you terminal and you can use these to access the WordPress instances.