How to Write kubernetes manifest file for database server and mount pvc to it?

In the era of cloud-native applications, Kubernetes has emerged as the de facto platform for orchestrating containerized workloads. While stateless applications are relatively straightforward to manage, stateful applications like databases present unique challenges. Databases require persistent storage, stable network identities, and high availability—features that demand careful configuration in Kubernetes.

This guide provides an in-depth walkthrough of deploying a production-ready database (using PostgreSQL as an example) on Kubernetes. We’ll cover everything from foundational concepts like Persistent Volume Claims (PVCs) to advanced strategies for high availability, security, and disaster recovery. By the end, you’ll understand how to:

• Use StatefulSets for stable, scalable database deployments.
• Securely manage credentials with Kubernetes Secrets.
• Configure Storage Classes for cloud-optimized storage.
• Implement high availability and automated backups.
• Monitor database health with Prometheus and Grafana.

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