Docker Deep Dive - Third Edition

15: Volumes and persistent data

Stateful applications that create and manage data are a big part of modern cloud-native apps. This chapter explains how Docker volumes help stateful applications manage their data.

I’ve split the chapter into the following parts:

• Volumes and persistent data – The TLDR
• Containers without volumes
• Containers with volumes
• The commands

Volumes and persistent data – The TLDR

There are two main types of data — persistent and non-persistent.

Persistent data is the stuff you care about and need to keep. It includes things like customer records, financial data, research results, audit data, and even some types of logs. Non-persistent data is the stuff you don’t care about and don’t need to keep. We call applications ...