K3s Kubernetes SQL Server Deployment Documentation

1. Overview

This guide provides a complete workflow to:

• Install k3s Kubernetes cluster on a Linux server
• Configure kubectl access for the user
• Build and deploy a custom SQL Server Docker image
• Configure persistent storage for SQL Server
• Enable external access through firewall and NodePort
• Troubleshoot common issues

2. Prerequisites

• Linux server with sudo access
• Internet connectivity
• Docker installed for building images
• Firewall access to required ports
• Basic Linux and Kubernetes knowledge

3. System Preparation

3.1 Check Memory and Swap

free -h
sudo swapoff -a   # Kubernetes requires swap to be off