Terraform-wordpress

##Objetive of the project

• Using terraform setup the wordpress site end to end, including mysql database and also the nginx server.
• Setup nagios, a monitoring server

###Tools Used

• terraform (v0.10.2)
• Ansible (2.3.1.0)

###Cloud Provider Amazon Web Services

Platform

Ubuntu 16

###Assumptions

• AWS is used as a cloud provider
• Security is not considered, port 22 and 80 are opened to public
• Default VPC is used with subnets
• Route53 has been used to assign a domain name to the servers.
• Scripts developed to create single wordpress and single monitoring server.
• Since it is just a small dev project so did not considered high availability and fault tolerance, for a good architecture we can have a discussion.

Steps for local environment

• Install terraform https://www.terraform.io/intro/getting-started/install.html
• Install Ansible http://docs.ansible.com/ansible/latest/intro_installation.html#basics-what-will-be-installed https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-ansible-on-ubuntu-14-04 Set environment variable export ANSIBLE_HOST_KEY_CHECKING=False

AWS Dependency

Few things like security groups and public subnets needs to be created before initialising the scripts. All values to be placed in “var.tf” file.

• Create one security group with two ports opened.(80 and 22)
• An S3 Bucket to be created to upload terraform state.
• Create a subnet if not available
• AMI also needs to be updated on the variable.

How to play with scripts

• Wordpress Setup : Go to the instances directory

  • Initialise terraform

    • terraform init

  • Plan before executing script

    • terraform plan

  • Once everything is fine

    • terraform apply

      Just wait for 2-3 min it will deploy wordpress site on a particular server. Orchestration: terraform Installation & Configuration: Ansible

• Monitoring Setup: Nagios has been to as a monitoring server.

  • Go to nagios directory

    • Initialise terraform

      • terraform init

    • Plan before executing script

      • terraform plan

    • Once everything is fine

      • terraform apply In 2-3 min server would be ready to use.