We are seeing a lot of evolvement around DevOps for Sitecore. As part of that i have been working on many projects where we have implemented CI/CD along with some complexity like xConnect deployment, Deployment to Marketing Automation jobs, Blue-Green deployment. Currently, i am working on a Sitecore Commerce project. We are using 9.2 version of both Sitecore and Commerce. Where we had already implemented CI/CD for Sitecore solution. Now, we wanted to do it for the Commerce as well.
If you are not aware about Commerce basics like Role, Databases, Indexes etc. Please look at my previous blog here.