Я создал кластер k8s с RHEL7 с пакетами kubernetes GitVersion: " v1.8.1 ".Я пытаюсь развернуть WordPress на мой пользовательский кластер.Но создание модуля всегда застревает в состоянии ContainerCreating.
phani@k8s-master]$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
default wordpress-766d75457d-zlvdn 0/1 ContainerCreating 0 11m
kube-system etcd-k8s-master 1/1 Running 0 1h
kube-system kube-apiserver-k8s-master 1/1 Running 0 1h
kube-system kube-controller-manager-k8s-master 1/1 Running 0 1h
kube-system kube-dns-545bc4bfd4-bb8js 3/3 Running 0 1h
kube-system kube-proxy-bf4zr 1/1 Running 0 1h
kube-system kube-proxy-d7zvg 1/1 Running 0 34m
kube-system kube-scheduler-k8s-master 1/1 Running 0 1h
kube-system weave-net-92zf9 2/2 Running 0 34m
kube-system weave-net-sh7qk 2/2 Running 0 1h
Версия Docker: 1.13.1
Pod status from descibe command
Normal Scheduled 18m default-scheduler Successfully assigned wordpress-766d75457d-zlvdn to worker1
Normal SuccessfulMountVolume 18m kubelet, worker1 MountVolume.SetUp succeeded for volume "default-token-tmpcm"
Warning DNSSearchForming 18m kubelet, worker1 Search Line limits were exceeded, some dns names have been omitted, the applied search line is: default.svc.cluster.local svc.cluster.local cluster.local
Warning FailedCreatePodSandBox 14m kubelet, worker1 Failed create pod sandbox.
Warning FailedSync 25s (x8 over 14m) kubelet, worker1 Error syncing pod
Normal SandboxChanged 24s (x8 over 14m) kubelet, worker1 Pod sandbox changed, it will be killed and re-created.
из журнала кублетов, который я обнаружил ниже, ошибка на рабочем
error: failed to run Kubelet: failed to create kubelet: misconfiguration: kubelet cgroup driver: "cgroupfs" is different from docker cgroup driver: "systemd"
Но kubelet стабилен, проблем на рабочем месте не было.
Как мне решить эту проблему?
Я проверил сбой cni, ничего не смог найти.
~]# ls /opt/cni/bin
bridge cnitool dhcp flannel host-local ipvlan loopback macvlan noop ptp tuning weave-ipam weave-net weave-plugin-2.3.0
В журнальных журналах периодически появляются сообщения.похоже, что планировщик все время пытается создать контейнер.
Jun 08 11:25:22 worker1 kubelet[14339]: E0608 11:25:22.421184 14339 remote_runtime.go:115] StopPodSandbox "47da29873230d830f0ee21adfdd3b06ed0c653a0001c29289fe78446d27d2304" from runtime service failed: rpc error: code = DeadlineExceeded desc = context deadline exceeded
Jun 08 11:25:22 worker1 kubelet[14339]: E0608 11:25:22.421212 14339 kuberuntime_manager.go:780] Failed to stop sandbox {"docker" "47da29873230d830f0ee21adfdd3b06ed0c653a0001c29289fe78446d27d2304"}
Jun 08 11:25:22 worker1 kubelet[14339]: E0608 11:25:22.421247 14339 kuberuntime_manager.go:580] killPodWithSyncResult failed: failed to "KillPodSandbox" for "7f1c6bf1-6af3-11e8-856b-fa163e3d1891" with KillPodSandboxError: "rpc error: code = DeadlineExceeded desc = context deadline exceeded"
Jun 08 11:25:22 worker1 kubelet[14339]: E0608 11:25:22.421262 14339 pod_workers.go:182] Error syncing pod 7f1c6bf1-6af3-11e8-856b-fa163e3d1891 ("wordpress-766d75457d-spdrb_default(7f1c6bf1-6af3-11e8-856b-fa163e3d1891)"), skipping: failed to "KillPodSandbox" for "7f1c6bf1-6af3-11e8-856b-fa163e3d1891" with KillPodSandboxError: "rpc error: code = DeadlineExceeded desc = context deadline exceeded"