排查Docker容器立即退出问题

# Introduction

In this hands-on lab, you will learn how to identify and resolve a common Docker issue: containers that exit immediately after starting. This problem often confuses beginners and can occur for various reasons ranging from configuration errors to application issues.

By completing this lab, you will understand Docker container lifecycle, learn to diagnose immediate container exits, master debugging techniques, and implement best practices to ensure your containers run reliably. These skills are essential for anyone working with Docker in development or production environments.