Make infra deployments idempotent

[alexwaibel]

Details

Describe the solution you'd like:

Infra deployments should be idempotent. Running the scripts multiple times in a row shouldn't change anything if the infra deployed successfully.

Anything else you would like to add:

Additional Information:

Need to update the following:

• Terraform
  - [ ] Packer
• Ansible

[alexwaibel]

Resolved for terraform. Seems from some cursory digging that packer isn't intended to be idempotent. Still some potential improvements to the ansible playbooks left.