Kubernetes Errors: Kops related errors

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 Failed

Error 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)

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.