Kubernetes & Postgres Replication Setup

I’m architecting a stack that combines PostgreSQL streaming replication, Dockerised services, and a full CI/CD pipeline, but where I need the sharpest guidance is on the Kubernetes layer. The goal is to... (Budget: ₹1500 - ₹12500 INR, Jobs: Amazon Web Services, CI/CD, Docker, GitLab, Kubernetes, Node.js, NoSQL Couch & Mongo, PostgreSQL)