The rise of Docker and Kubernetes has helped usher in a new wave of contained applications running in public and private clouds. But while our infrastructure has evolved, our assumptions about monitoring containers haven’t. Monitoring containers to ensure they are running smoothly requires specialized knowledge.
Michael Kehoe walks you through building a small monitoring utility for cgroup containers to illustrate best practices in container monitoring. You’ll explore various cgroup constraints and learn how to specifically monitor for each of them to ensure that your application is behaving as expected. Along the way, Michael shares tricks and tips about monitoring containerized applications.
Michael Kehoe is a site reliability engineer at LinkedIn, where he specializes in building and maintaining reliable, scalable system infrastructure. Previously, he worked with networks at the University of Queensland, built small satellites at NASA, and wrote thermal environments software at Rio Tinto.
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