Chapter 2. Using the Built-in Tools

In the later chapters of this book, we will explore the monitoring parts of the large eco-system that has started to flourish around Docker over the last 24 months. However, before we press ahead with that, we should take a look at what is possible with a vanilla installation of Docker. In this chapter, we will cover the following topics:

  • Using the tools built into Docker to get real-time metrics on container performance
  • Using standard operating system commands to get metrics on what Docker is doing
  • Generating a test load so you can view the metrics changing

Docker stats

Since version 1.5, there has been a basic statistic command built into Docker:

docker stats --help

Usage: docker stats [OPTIONS] CONTAINER [CONTAINER...] ...

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