Use approval flows
It is important that human review is baked into each deployment. As covered in CI/CD workflows, it is difficult to build an automated test suite that builds enough confidence in your infrastructure code to do the right thing. This is important, as failed infrastructure deployments could be catastrophic to your business, and there is no concept of rollback with infrastructure deployment tools. This means that you will almost always want to have some form of approval workflow for your infrastructure CI/CD pipeline so that you can review what is about to be deployed. Most generic CI/CD platforms support approval workflows. For example, CircleCI supports approval steps in its workflow engine, in addition to restricted contexts to limit who can approve the workflow.