What are Kubernetes pod resource limits and how do I set them?

What are Kubernetes pod resource limits and how do I set them?

Kubernetes pod resource limits define the maximum amount of CPU and memory a pod can use. You set them in the pod's YAML configuration.

Can you show me an example of how to set these limits in a YAML file?

Sure! Here's a simple example:

apiVersion: v1
kind: Pod
metadata:
  name: my-pod
spec:
  containers:
  - name: my-container
    image: my-image
    resources:
      limits:
        memory: "512Mi"
        cpu: "1"

This sets a memory limit of 512 MiB and a CPU limit of 1 core.

What happens if a pod exceeds its resource limits?

If a pod exceeds its resource limits, Kubernetes may throttle the pod's CPU usage or terminate it if it exceeds memory limits, leading to a restart.

Are there best practices for setting these limits?

Yes, it's best to monitor your application's resource usage and set limits based on actual needs, ensuring they are not too restrictive.