Master & node setup in Virtual box

Kubernetes
#1

Hi ,

im getting the below error

osboxes@kubemaster:~$ kubeadm init --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=192.168.52.2
W0427 07:58:59.080404 4241 configset.go:202] WARNING: kubeadm cannot validate component configs for API groups [kubelet.config.k8s.io kubeproxy.config.k8s.io]
[init] Using Kubernetes version: v1.18.2
[preflight] Running pre-flight checks
error execution phase preflight: [preflight] Some fatal errors occurred:
[ERROR IsPrivilegedUser]: user is not running as root
[preflight] If you know what you are doing, you can make a check non-fatal with --ignore-preflight-errors=...
To see the stack trace of this error execute with --v=5 or higher

#2

because you are setting this configuration from normal user. You must be have sudo or root user to access this.

#3

Thanks for your response but still getting same issue.

#4

I think it will not work if already cluster setup in your machine.

#5

Kodekloud team,

Can you pls help me to resolve this issue.
Appreciate your quick response.

#6

Hi Team,

Im able to resolve using Calico Pod network but not able to see Kube DNS and also not able to join kubeadm.

Pls find the below error :

Kube Master

osboxes@kubemaster:~$ sudo kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-kube-controllers-75d56dfc47-h2898 1/1 Running 0 5m24s
kube-system calico-node-77vxf 1/1 Running 0 5m24s
kube-system coredns-66bff467f8-8qlsw 0/1 CrashLoopBackOff 5 12m
kube-system coredns-66bff467f8-v9dkc 0/1 CrashLoopBackOff 5 12m
kube-system etcd-kubemaster 1/1 Running 0 12m
kube-system kube-apiserver-kubemaster 1/1 Running 0 12m
kube-system kube-controller-manager-kubemaster 1/1 Running 0 12m
kube-system kube-proxy-9rpp9 1/1 Running 0 12m
kube-system kube-scheduler-kubemaster 1/1 Running 0 12m

Kube node

osboxes@kubenode1:~$ kubeadm join 192.168.56.2:6443 --token tjafe0.v8nnurg7kenbkhrw \

kubeadm join 192.168.56.2:6443 --token tjafe0.v8nnurg7kenbkhrw ^C
osboxes@kubenode1:~$ sudo kubeadm join 192.168.56.2:6443 --token tjafe0.v8nnurg7kenbkhrw
–discovery-token-ca-cert-hash sha256:c2648d9491547c521de201a4f6f57d9e28898486234d5a6d461e8824285cf937
[sudo] password for osboxes:
W0428 10:21:07.569441 15318 join.go:346] [preflight] WARNING: JoinControlPane.controlPlane settings will be ignored when control-plane flag is not set.
[preflight] Running pre-flight checks
[WARNING IsDockerSystemdCheck]: detected “cgroupfs” as the Docker cgroup driver. The recommended driver is “systemd”. Please follow the guide at Container Runtimes | Kubernetes
error execution phase preflight: [preflight] Some fatal errors occurred:
[ERROR Swap]: running with swap on is not supported. Please disable swap
[preflight] If you know what you are doing, you can make a check non-fatal with --ignore-preflight-errors=...
To see the stack trace of this error execute with --v=5 or higher
osboxes@kubenode1:~$