I install kubernetes 1000 times but now it does not work. I install kubectl kubeadm kubelet then
sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=185.73.114.92
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
but I see coredns is in pending state
kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-5644d7b6d9-492q4 0/1 Pending 0 13m
kube-system coredns-5644d7b6d9-cvwjg 0/1 Pending 0 13m
kube-system etcd-amghezi 1/1 Running 0 12m
kube-system kube-apiserver-amghezi 1/1 Running 0 12m
kube-system kube-controller-manager-amghezi 1/1 Running 0 12m
kube-system kube-flannel-ds-amd64-fkxnf 1/1 Running 0 12m
kube-system kube-proxy-pspw2 1/1 Running 0 13m
kube-system kube-scheduler-amghezi 1/1 Running 0 12m
and then I get describe of coredns
kubectl describe pods coredns-5644d7b6d9-492q4 -n kube-system
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling <unknown> default-scheduler 0/1 nodes are available: 1 node(s) had taints that the pod didn't tolerate.
Warning FailedScheduling <unknown> default-scheduler 0/1 nodes are available: 1 node(s) had taints that the pod didn't tolerate.
I taint the node by
kubectl taint nodes amghezi node-role.kubernetes.io/master-
It did not work I see at
journalctl -xe
message:docker: network plugin is not ready: cni config uninitialized
service docker status
● docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; disabled; vendor preset: enabled)
Active: active (running) since Sun 2019-09-22 17:29:45 CEST; 34min ago
Docs: https://docs.docker.com
Main PID: 987 (dockerd)
Tasks: 20
CGroup: /system.slice/docker.service
└─987 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
Sep 22 17:29:45 ubuntu systemd[1]: Started Docker Application Container Engine.
Sep 22 17:29:45 ubuntu dockerd[987]: time="2019-09-22T17:29:45.728818467+02:00" level=info msg="API listen on /var/run/docker.sock"
Sep 22 17:29:45 ubuntu dockerd[987]: time="2019-09-22T17:29:45.757401709+02:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec: 1.0.1-dev\n"
Sep 22 17:29:45 ubuntu dockerd[987]: time="2019-09-22T17:29:45.786776798+02:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec: 1.0.1-dev\n"
Sep 22 17:29:46 ubuntu dockerd[987]: time="2019-09-22T17:29:46.296798944+02:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec: 1.0.1-dev\n"
Sep 22 17:29:46 ubuntu dockerd[987]: time="2019-09-22T17:29:46.364459982+02:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec: 1.0.1-dev\n"
Sep 22 17:30:06 ubuntu dockerd[987]: time="2019-09-22T17:30:06.996299645+02:00" level=warning msg="failed to retrieve runc version: unknown output format: runc version spec: 1.0.1-dev\n"
Sep 22 17:30:41 ubuntu dockerd[987]: time="2019-09-22T17:30:41.633452599+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Sep 22 17:30:41 ubuntu dockerd[987]: time="2019-09-22T17:30:41.633831003+02:00" level=warning msg="d72e19bd0e929513a1c9092ec487e5dc3f3e009bdaa4d33668b610e86cdadf9e cleanup: failed to unmount IPC: umount /var/lib/docker/containers/d72e19bd0e929513a1c9092ec487e5dc3f3e009bdaa4d33668b610e86cdadf9e/mounts/shm, flags: 0x2
Sep 22 17:30:41 ubuntu dockerd[987]: time="2019-09-22T17:30:41.903058543+02:00" level=warning msg="Your kernel does not support swap limit capabilities,or the cgroup is not mounted. Memory limited without swap."
and let us see kubelet status
Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
kubectl get nodes -o jsonpath="{.items[*].spec.taints}"
– Alassane Ndiayekubectl taint nodes --all node-role.kubernetes.io/master-
and then redoingkubectl get nodes -o jsonpath="{.items[*].spec.taints}"
? – Alassane Ndiayekubectl taint nodes --all node-role.kubernetes.io/master
say? – Alassane Ndiaye