Basic Terraform Help

Requirements:

• Terraform
• Ansible
• AWS admin access

Tools Used:

ansible --version
ansible 2.0.0.2
  config file = /etc/ansible/ansible.cfg
  configured module search path = Default w/o overrides

terraform version
Terraform v0.6.11

Before using the terraform, we need to export AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY as environment variables:

export AWS_ACCESS_KEY_ID="xxxxxxxxxxxxxxxx"
export AWS_SECRET_ACCESS_KEY="yyyyyyyyyyyyyyyyyyyy"

To Generate and show an execution plan (dry run):

terraform plan

To Builds or makes actual changes in infrastructure:

terraform apply

To inspect Terraform state or plan:

terraform show

To destroy Terraform-managed infrastructure:

terraform destroy

Note: Terraform stores the state of the managed infrastructure from the last time Terraform was run. Terraform uses the state to create plans and make changes to the infrastructure.

Ansible Role after Terraform Provisioning:

Once the Terraform will create all the resources over AWS, you can use the Ansible to install the wordpress over the EC2 instance(s)

To use the provided Role:

ansible-playbook site.yml -e@../secret/secure.yml -e@../terraform-aws/tendo-dev.yml

or use this command if you are using encrypted file:

ansible-playbook site.yml -e@../secret/secure.yml -e@../terraform-aws/tendo-dev.yml --ask-vault-pass

where secure.yml contains secure information while tendo-dev.yml contain the dnsname of the RDS(in this example) and this file will create during the terraform execution and it's name based on the values of these variables:

• name
• environment

Note: terraform.py is dynamic inventory created by CiscoCloud