Update Kubernetes Version

  2 minute read  

Upgrading Kubernetes version

You can use the following steps to upgrade the Kubernetes version of a cluster.

In the following example, we will upgrade Kubernetes version of your cluster with name Democluster from Kubernetes version 1.27.2 to Kubernetes version 1.28.2

  1. You have to create a kubeobsctl.yaml with following yaml syntax.
   apiVersion: kubeops/kubeopsctl/alpha/v3  # mandatory
   kubeOpsUser: "demo" # mandatory,  change to your username
   kubeOpsUserPassword: "Password" # mandatory,  change to your password
   kubeOpsUserMail: "demo@demo.net" # change to your email
   imagePullRegistry: "registry1.kubernative.net/lima" # mandatory
   localRegistry: false # mandatory
   ### Values for setup configuration ###
   clusterName: "Democluster"  # mandatory
   clusterUser: "mnyuser"  # mandatory
   kubernetesVersion: "1.28.2" # mandatory, check lima documentation
   masterIP: 10.2.10.11 # mandatory
   ### Additional values for cluster configuration
   # at least 3 masters and 3 workers are needed
   zones:
   - name: zone1
      nodes:
         master:
         - name: cluster1master1
            ipAdress: 10.2.10.11
            user: myuser
            systemCpu: 100m
            systemMemory: 100Mi 
            status: active
            kubeversion: 1.28.2
         - name: cluster1master2
            ipAdress: 10.2.10.12
            user: myuser
            systemCpu: 100m
            systemMemory: 100Mi 
            status: active
            kubeversion: 1.28.2
         worker:
         - name: cluster1worker1
            ipAdress: 10.2.10.14
            user: myuser
            systemCpu: 100m
            systemMemory: 100Mi 
            status: active
            kubeversion: 1.28.2
         - name: cluster1worker2
            ipAdress: 10.2.10.15
            systemCpu: 100m
            systemMemory: 100Mi 
            status: active
            kubeversion: 1.28.2
   - name: zone2
      nodes:
         master:
         - name: cluster1master3
            ipAdress: 10.2.10.13
            user: myuser
            systemCpu: 100m
            systemMemory: 100Mi 
            status: drained
            kubeversion: 1.28.2  
         worker:
         - name: cluster1worker1
            ipAdress: 10.2.10.16
            user: myuser
            systemCpu: 100m
            systemMemory: 100Mi 
            status: active
            kubeversion: 1.28.2

   # set to true if you want to install it into your cluster
   rook-ceph: false # mandatory
   harbor: false # mandatory
   opensearch: false # mandatory
   opensearch-dashboards: false # mandatory
   logstash: false # mandatory
   filebeat: false # mandatory
   prometheus: false # mandatory
   opa: false # mandatory
   headlamp: false # mandatory
   certman: false # mandatory
   ingress: false # mandatory
   keycloak: false # mandatory

  1. Upgrade the version

    Once the kubeopsctl.yaml file is created in order to change the Version of your cluster use the following command:

    kubeopsctl apply -f kubeopsctl.yaml