Error 1
[ec2-user@ip-172-31-19-219 ~]$ kops create cluster --name $CLUSTER_NAME --zones $AWS_AVAILABILITY_ZONES --kubernetes-version $KUBERNETES_VERSION
I0620 09:13:06.655156 22247 create_cluster.go:1318] Using SSH public key: /home/ec2-user/.ssh/id_rsa.pub
cluster "cluster1.k8.rajeshkumar.xyz" already exists; use 'kops update cluster' to apply changesCode language: PHP (php)Error 2
[ec2-user@ip-172-31-19-219 ~]$ kops update cluster
W0620 09:16:46.302303 22255 root.go:227] no context set in kubecfg
ClusterName: Required value: Cluster name is requiredCode language: JavaScript (javascript)Error 3
[ec2-user@ip-172-31-19-219 ~]$ kops validate cluster
Using cluster from kubectl context: cluster1.k8.rajeshkumar.xyz
Validating cluster cluster1.k8.rajeshkumar.xyz
INSTANCE GROUPS
NAME ROLE MACHINETYPE MIN MAX SUBNETS
master-ap-south-1a Master c4.large 1 1 ap-south-1a
nodes Node t2.medium 2 2 ap-south-1a,ap-south-1b
NODE STATUS
NAME ROLE READY
VALIDATION ERRORS
KIND NAME MESSAGE
dns apiserver Validation Failed
The dns-controller Kubernetes deployment has not updated the Kubernetes cluster's API DNS entry to correct IP address. The API DNS IP address is the placeholder address that kops creates: 203.0.113. Please wait about 5-10 minutes for a master to start, dns-controller to launch, and DNS to propa. The protokube container and dns-controller deployment logs may contain more diagnostic informati Etcd and the API DNS entries must be updated for a kops Kubernetes cluster to start.
Validation FailedError 4
VALIDATION ERRORS
KIND NAME MESSAGE
Pod kube-system/kube-dns-756bfc7fdf-47m7g kube-system pod "kube-dns-756bfc7fdf-47m7g" is not healthy
Pod kube-system/kube-dns-756bfc7fdf-47m7g kube-system pod "kube-dns-756bfc7fdf-47m7g" is not healthy
Pod kube-system/kube-dns-756bfc7fdf-47m7g kube-system pod "kube-dns-756bfc7fdf-47m7g" is not healthy
Pod kube-system/kube-dns-756bfc7fdf-c5jwf kube-system pod "kube-dns-756bfc7fdf-c5jwf" is not healthy
Pod kube-system/kube-dns-756bfc7fdf-c5jwf kube-system pod "kube-dns-756bfc7fdf-c5jwf" is not healthy
Pod kube-system/kube-dns-756bfc7fdf-c5jwf kube-system pod "kube-dns-756bfc7fdf-c5jwf" is not healthy
Validation FailedCode language: JavaScript (javascript)
Kubernetes – CKA Certification Overview – By DevOpsSchool.com
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Kubernetes – CKA Certification | Part 14 out 14 | — By DevOpsSchool
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