I setup kubernetes cluster with Calico as CNI & all nodes are available, However when tried to run container with image nginx then POD remained in creatingContainer Status - I checked for /etc/cni/net.d and /opt/cni/bin on master and worker node, these are are present on all the nodes (1 master & 1 worker).
root@KubernetesMaster:/home/ubuntu# kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.4", GitCommit:"c27b913fddd1a6c480c229191a087698aa92f0b1", GitTreeState:"clean", BuildDate:"2019-02-28T13:35:32Z", GoVersion:"go1.11.5", Compiler:"gc", Platform:"linux/amd64"}
root@KubernetesMaster:/home/ubuntu# docker --version
Docker version 18.09.3, build 774a1f4
root@KubernetesMaster:/home/ubuntu#
root@KubernetesMaster:/opt/cni/bin# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-5c7588df-5zds6 0/1 ContainerCreating 0 21m
root@KubernetesMaster:/opt/cni/bin# kubectl get nodes
NAME STATUS ROLES AGE VERSION
kubernetesmaster Ready master 26m v1.13.4
kubernetesslave1 Ready <none> 22m v1.13.4
root@KubernetesMaster:/opt/cni/bin#
kubectl describe pods
Name: nginx-5c7588df-5zds6
Namespace: default
Priority: 0
PriorityClassName: <none>
Node: kubernetesslave1/10.0.3.80
Start Time: Sun, 17 Mar 2019 05:13:30 +0000
Labels: app=nginx
pod-template-hash=5c7588df
Annotations: <none>
Status: Pending
IP:
Controlled By: ReplicaSet/nginx-5c7588df
Containers:
nginx:
Container ID:
Image: nginx
Image ID:
Port: <none>
Host Port: <none>
State: Waiting
Reason: ContainerCreating
Ready: False
Restart Count: 0
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-qtfbs (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
default-token-qtfbs:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-qtfbs
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 18m default-scheduler Successfully assigned default/nginx-5c7588df-5zds6 to kubernetesslave1
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "123d527490944d80f44b1976b82dbae5dc56934aabf59cf89f151736d7ea8adc" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "8cc5e62ebaab7075782c2248e00d795191c45906cc9579464a00c09a2bc88b71" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "30ffdeace558b0935d1ed3c2e59480e2dd98e983b747dacae707d1baa222353f" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "630e85451b6ce2452839c4cfd1ecb9acce4120515702edf29421c123cf231213" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "820b919b7edcfc3081711bb78b79d33e5be3f7dafcbad29fe46b6d7aa22227aa" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "abbfb5d2756f12802072039dec20ba52f546ae755aaa642a9a75c86577be589f" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "dfeb46ffda4d0f8a434f3f3af04328fcc4b6c7cafaa62626e41b705b06d98cc4" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "9ae3f47bb0282a56e607779d3267127ee8b0ae1d7f416f5a184682119203b1c8" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Warning FailedCreatePodSandBox 18m kubelet, kubernetesslave1 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "546d07f1864728b2e2675c066775f94d658e221ada5fb4ed6bf6689ec7b8de23" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
Normal SandboxChanged 18m (x12 over 18m) kubelet, kubernetesslave1 Pod sandbox changed, it will be killed and re-created.
Warning FailedCreatePodSandBox 3m39s (x829 over 18m) kubelet, kubernetesslave1 (combined from similar events): Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "f586be437843537a3082f37ad139c88d0eacfbe99ddf00621efd4dc049a268cc" network for pod "nginx-5c7588df-5zds6": NetworkPlugin cni failed to set up pod "nginx-5c7588df-5zds6_default" network: stat /var/lib/calico/nodename: no such file or directory: check that the calico/node container is running and has mounted /var/lib/calico/
On worker node NGINX is trying to come up but getting exited, I am not sure what's going on here - I am newbie to kubernetes & not able to fix this issue -
root@kubernetesslave1:/home/ubuntu# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 3 minutes ago Up 3 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1 b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1 ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1 root@kubernetesslave1:/home/ubuntu# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 3 minutes ago Up 3 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1 b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1 ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1 root@kubernetesslave1:/home/ubuntu# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 3 minutes ago Up 3 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1 b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1 ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 3 minutes ago Up 3 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
root@kubernetesslave1:/home/ubuntu# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
94b2994401d0 k8s.gcr.io/pause:3.1 "/pause" 1 second ago Up Less than a second k8s_POD_nginx-5c7588df-5zds6_default_677a722b-4873-11e9-a33a-06516e7d78c4_534
5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 4 minutes ago Up 4 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 4 minutes ago Up 4 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1
ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
root@kubernetesslave1:/home/ubuntu# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 4 minutes ago Up 4 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 4 minutes ago Up 4 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1
ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
root@kubernetesslave1:/home/ubuntu# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f72500cae2b7 k8s.gcr.io/pause:3.1 "/pause" 1 second ago Up Less than a second k8s_POD_nginx-5c7588df-5zds6_default_677a722b-4873-11e9-a33a-06516e7d78c4_585
5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 4 minutes ago Up 4 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 4 minutes ago Up 4 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1
ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
root@kubernetesslave1:/home/ubuntu# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5ad5500e8270 fadcc5d2b066 "/usr/local/bin/kube…" 5 minutes ago Up 5 minutes k8s_kube-proxy_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
b1c9929ebe9e k8s.gcr.io/pause:3.1 "/pause" 5 minutes ago Up 5 minutes k8s_POD_calico-node-749qx_kube-system_4e2d8c9c-4873-11e9-a33a-06516e7d78c4_1
ceb78340b563 k8s.gcr.io/pause:3.1 "/pause" 5 minutes ago Up 5 minutes k8s_POD_kube-proxy-f24gd_kube-system_4e2d313a-4873-11e9-a33a-06516e7d78c4_1
I checked about /etc/cni/net.d & /opt/cni/bin on worker node as well, it is there -
root@kubernetesslave1:/home/ubuntu# cd /etc/cni
root@kubernetesslave1:/etc/cni# ls -ltr
total 4
drwxr-xr-x 2 root root 4096 Mar 17 05:19 net.d
root@kubernetesslave1:/etc/cni# cd /opt/cni
root@kubernetesslave1:/opt/cni# ls -ltr
total 4
drwxr-xr-x 2 root root 4096 Mar 17 05:19 bin
root@kubernetesslave1:/opt/cni# cd bin
root@kubernetesslave1:/opt/cni/bin# ls -ltr
total 107440
-rwxr-xr-x 1 root root 3890407 Aug 17 2017 bridge
-rwxr-xr-x 1 root root 3475802 Aug 17 2017 ipvlan
-rwxr-xr-x 1 root root 3520724 Aug 17 2017 macvlan
-rwxr-xr-x 1 root root 3877986 Aug 17 2017 ptp
-rwxr-xr-x 1 root root 3475750 Aug 17 2017 vlan
-rwxr-xr-x 1 root root 9921982 Aug 17 2017 dhcp
-rwxr-xr-x 1 root root 2605279 Aug 17 2017 sample
-rwxr-xr-x 1 root root 32351072 Mar 17 05:19 calico
-rwxr-xr-x 1 root root 31490656 Mar 17 05:19 calico-ipam
-rwxr-xr-x 1 root root 2856252 Mar 17 05:19 flannel
-rwxr-xr-x 1 root root 3084347 Mar 17 05:19 loopback
-rwxr-xr-x 1 root root 3036768 Mar 17 05:19 host-local
-rwxr-xr-x 1 root root 3550877 Mar 17 05:19 portmap
-rwxr-xr-x 1 root root 2850029 Mar 17 05:19 tuning
root@kubernetesslave1:/opt/cni/bin#
