Hands-On Microservices with Kubernetes

Using quotas to minimize the blast radius

Limits and quotas are a Kubernetes mechanism where you can control various limited resources such as CPU and memory which are allocated to clusters, pods, and containers. They are very useful for multiple reasons:

• Performance.
• Capacity planning.
• Cost management.
• They help Kubernetes schedule pods based on resource utilization.

When your workloads operate within a budget, everything becomes more predictable and easier to reason about, although you have to do the leg work of figuring out how many resources are actually needed and adjust this as time goes by. This is not as bad as it sounds since, with horizontal pod autoscaling, you can let Kubernetes dynamically adjust the number of pods for a service, ...