Docker Deep Dive - Third Edition

9: Multi-container apps with Compose

In this chapter, you’ll deploy and manage a multi-container application using Docker Compose. When we talk about Docker Compose, we usually shorten it to Compose and always write it with a capital “C”.

I’ve organized the chapter as follows:

• Docker Compose – The TLDR
• Compose background
• Installing Compose
• The sample app
• Compose files
• Deploying apps with Compose
• Managing apps with Compose

Docker Compose – The TLDR

We create modern cloud-native applications by combining lots of small services that work together to form a useful app. We call them microservices applications, and they bring a lot of benefits, such as self-healing, autoscaling, and rolling updates. However, they can be complex.

For example, you ...