I'm trying to install Kubernetes Cluster with Dashboard on Ubuntu 20.04 TLS using the following commands:
swapoff -a
# Remove following line from /etc/fstab
/swap.img none swap sw 0 0
sudo apt update
sudo apt install docker.io
sudo systemctl start docker
sudo systemctl enable docker
sudo apt install apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add
echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" >> ~/kubernetes.list
sudo mv ~/kubernetes.list /etc/apt/sources.list.d
sudo apt update
sudo apt install kubeadm kubelet kubectl kubernetes-cni
sudo kubeadm init --pod-network-cidr=192.168.0.0/16
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/recommended.yaml
kubectl proxy --address 192.168.1.133 --accept-hosts '.*'
But when I open http://192.168.1.133:8001/api/v1/namespaces/default/services/https:kubernetes-dashboard:https/proxy
I get:
{
"kind": "Status",
"apiVersion": "v1",
"metadata": {},
"status": "Failure",
"message": "services \"kubernetes-dashboard\" not found",
"reason": "NotFound",
"details": {
"name": "kubernetes-dashboard",
"kind": "services"
},
"code": 404
}
I tried to list the pods:
root@ubuntukubernetis1:~# kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-flannel kube-flannel-ds-f6bwx 0/1 Error 11 (29s ago) 76m
kube-system coredns-6d4b75cb6d-rk4kq 0/1 ContainerCreating 0 77m
kube-system coredns-6d4b75cb6d-vkpcm 0/1 ContainerCreating 0 77m
kube-system etcd-ubuntukubernetis1 1/1 Running 1 (52s ago) 77m
kube-system kube-apiserver-ubuntukubernetis1 1/1 Running 1 (52s ago) 77m
kube-system kube-controller-manager-ubuntukubernetis1 1/1 Running 1 (52s ago) 77m
kube-system kube-proxy-n6ldq 1/1 Running 1 (52s ago) 77m
kube-system kube-scheduler-ubuntukubernetis1 1/1 Running 1 (52s ago) 77m
kubernetes-dashboard dashboard-metrics-scraper-7bfdf779ff-sdnc8 0/1 Pending 0 75m
kubernetes-dashboard dashboard-metrics-scraper-8c47d4b5d-2sxrb 0/1 Pending 0 59m
kubernetes-dashboard kubernetes-dashboard-5676d8b865-fws4j 0/1 Pending 0 59m
kubernetes-dashboard kubernetes-dashboard-6cdd697d84-nmpv2 0/1 Pending 0 75m
root@ubuntukubernetis1:~#
Checking kube-flannel pod logs:
kubectl logs -n kube-flannel kube-flannel-ds-f6bwx -p
Defaulted container "kube-flannel" out of: kube-flannel, install-cni-plugin (init), install-cni (init)
I0724 14:49:57.782499 1 main.go:207] CLI flags config: {etcdEndpoints:http://127.0.0.1:4001,http://127.0.0.1:2379 etcdPrefix:/coreos.com/network etcdKeyfile: etcdCertfile: etcdCAFile: etcdUsername: etcdPassword: version:false kubeSubnetMgr:true kubeApiUrl: kubeAnnotationPrefix:flannel.alpha.coreos.com kubeConfigFile: iface:[] ifaceRegex:[] ipMasq:true ifaceCanReach: subnetFile:/run/flannel/subnet.env publicIP: publicIPv6: subnetLeaseRenewMargin:60 healthzIP:0.0.0.0 healthzPort:0 iptablesResyncSeconds:5 iptablesForwardRules:true netConfPath:/etc/kube-flannel/net-conf.json setNodeNetworkUnavailable:true}
W0724 14:49:57.782676 1 client_config.go:614] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work.
E0724 14:49:57.892230 1 main.go:224] Failed to create SubnetManager: error retrieving pod spec for 'kube-flannel/kube-flannel-ds-f6bwx': pods "kube-flannel-ds-f6bwx" is forbidden: User "system:serviceaccount:kube-flannel:flannel" cannot get resource "pods" in API group "" in the namespace "kube-flannel"
Do you know how I can fix the issue?