Docker Advance Part 1: Manage and Monitor Docker Containers Health

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Hello developers, welcome to my first part of the new Docker Advanced series. In this post, we are going to explore some Docker commands, tricks, and useful information. Make sure to follow me to not miss any of them. In today’s topic, I will discuss mainly about Health Checks in Docker. Let’s get started.

Health Checks

What are Health Checks?

Health checks are automated diagnostics that monitor the state of applications, services, or systems to ensure they’re running properly. In a microservices architecture, health checks continuously test whether an application is reachable and operating as expected. They typically return a simple status: healthy (operational) or unhealthy (not operational).

Different actions can be taken based on business use case from the status of health check.

How to Define Health Checks for Docker Image inside Docker Compose?

I am going to create health check for Spring Boot app. Create docker compose file to add our configurations for health checks.