Apply terraform configs in CI/CD

[DominicRoyStang]

Currently, I run terraform apply from the terminal whenever I make changes. Terraform documentation on running in automation: https://learn.hashicorp.com/terraform/development/running-terraform-in-automation

As a developer, I want terraform apply to be run in CI/CD (on merges to master) so that I can have a guarantee that the files in the terraform/ folder match the configuration on the production cloud.

A big benefit from this is that I would (as a follow-up task) be able to re-map outputs from terraform apply to inputs to helm.
That would reduce duplication of variables between Terraform and Helm. There's also things that I currently hard-code in Helm that could become variables based on the terraform outputs (eg. the ingress ip).