Hello,
I have been working with Gitlab for last 5 years. I have created CI/CD pipelines for various projects on Gitlab, including Yii, Symfony, NodeJS (ExpressJS + HAPI) and others. I can arrange 2 sessions with you to give you a full overview about how to build a CI/CD pipeline using Gitlab. I can also demonstrate how to integrate the CI/CD pipeline and deploy it to AWS. If you would need more sessions or to setup Gitlab server, I can do this as well.
I'm a Certified AWS Solution Architect with 10 years experience in the field. Will be happy to help!
Send me a message if you would like to discuss further !