We connect Ansible and Collins through ansible-cmdb (https://github.com/fboender/ansible-cmdb), then tie the entire thing to our ticketing systems ServiceNOW (https://www.servicenow.com/) and Jira Service Desk (https://www.atlassian.com/software/jira/service-desk), and finally, ensure we have history tracking with Slack (https://www.slack.com).
As a given, we yank test the entire world. If it doesn't pass a yank, it straight up doesn't exist.
Whether it's bare-metal, virtualized, para-virtualized, dockerized, mixed-mode, or cloud - we 100% do this all the time. There is not a single change across any environment, that isn't fully tracked, fully reproducible, fully auditable, and fully automated.
That way we know our CMDB is accurate, our workflows are accurate, credentials, ansible, terraform, images, etc. Right down to tickets.
It's how we manage all of our cloud customers.