CentOS Question posted in
The official documentation can be found here.

Kubernetes Deployment: Error: failed to create deployment: – CentOS

Environment Details:

Kubernetes version: `v1.20.2`
Master Node: `Bare Metal/Host OS: CentOS 7`
Worker Node: `VM/Host OS: CentOS 7`

I have installed & configured the Kubernetes cluster, the Master node on the bare metal server & the worker node on windows server 2012 HyperV VM. Both master and worker nodes have the same Kubernetes version ( v1.20.2) & centos7. Successfully joined worker node to master, below is the get nodes status.

$ kubectl get nodes

**NAME             STATUS ROLES               AGE  VERSION

k8s-worker-node1 Ready  <none>              2d2h v1.20.2

master-node      Ready control-plane,master 3d4h v1.20.2**

While creating a deployment on the worker node I am getting the below error message.

On worker node, I issued the following command.

$ kubectl create deployment nginx-depl --image=nginx

Error message is:
error: failed to create deployment: Post “http://localhost:8080/apis/apps/v1/namespaces/default/deployments?fieldManager=kubectl-create”: dial tcp: lookup localhost on 8.8.8.8:53: no such host

please help me to resolve this issue as I am not able to understand what is the problem.

Tags:

2

Answers


  1. 0

    It seems that you are issuing the kubectl create deployment command on the worker node. This won’t work because the kubectl command communicates with the kub-apiserver for cluster communication. Since the apiserver does not run on the worker node executing the command on it will raise an error.

    Instead execute the same kubectl command on the master node as a non-root user with the following additional commands,

    $ mkdir -p $HOME/.kube
$ sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
$ sudo chown $(id -u):$(id -g) $HOME/.kube/config
$ kubectl create deployment nginx-depl --image=nginx
    Login or Signup to reply.
  2. 0

    May you have to run minikube start before. I’m learning and between one class and another I forgot to run this command. I hope I have helped someone.

    This worked for me.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search