No matches for kind "ReplicaSet" in version "extensions/v1beta1"

user_12567676 0
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I am trying to run Replica Set.

I have this yaml file

apiVersion: extensions/v1beta1
kind: ReplicaSet
metadata:
  name: nginxrs
  labels:
    app: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      name: nginx
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.12-alpine
        ports:
        - containerPort: 80

This file is called nginx-rs.yaml

Next, In terminal use command

 kubectl apply -f nginx-rs.yaml

And I have this error

error: unable to recognize "nginx-rs.yaml": no matches for kind "ReplicaSet" in version "extensions/v1beta1"

Thanks for pointing out where did I go wrong?

kubernetes
1 Answers

In kubernetes 1.16 replicaset was moved to apps/v1 apiVersion from extensions/v1beta1. Hence the yaml should be as below

apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: nginxrs
  labels:
    app: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      name: nginx
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.12-alpine
        ports:
        - containerPort: 80
user_18394820
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