Kubernetes Runtime Class

CozyFex included in kubernetes k8s orchestration docker container runtime

2021-07-08 148 words One minute

Contents

Container Runtime Handlers

Runtime	Handler
gVisor	runsc
Kata	kata

gVisor

`gvisor.yaml`

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apiVersion: node.k8s.io/v1beta1
kind: RuntimeClass
metadata:
  name: gvisor
handler: runsc

Create a RuntimeClass

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kubectl create -f gvisor.yaml

Kata

`kata.yaml`

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apiVersion: node.k8s.io/v1beta1
kind: RuntimeClass
metadata:
  name: kata
handler: kata

Create a RuntimeClass

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kubectl create -f gvisor.yaml

Apply to POD

gVisor POD

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apiVersion: v1
kind: Pod
metadata:
  labels:
    run: nginx
  name: nginx
spec:
  runtimeClassName: gvisor
  containers:
    - image: nginx
      name: nginx

Kata POD

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apiVersion: v1
kind: Pod
metadata:
  labels:
    run: nginx
  name: nginx
spec:
  runtimeClassName: kata
  containers:
    - image: nginx
      name: nginx

Check Container Runtime

Connect to the Node

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ssh node01

Grep Process

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pgrep -a nginx

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pgrep -a runsc

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pgrep -a kata