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

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

Kubernetes resource limits define the maximum amount of CPU and memory a container can use. You set them in the pod specification.

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: mypod
spec:
  containers:
  - name: mycontainer
    image: myimage
    resources:
      limits:
        memory: "128Mi"
        cpu: "500m"

This sets a memory limit of 128 MiB and a CPU limit of 500 milliCPU.

What happens if a container exceeds its resource limits?

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