I created an nginx deployment and got below error.
root@kmaster:~# kubectl describe pod nginx
Name: nginx-6799fc88d8-ltnc5
Namespace: default
Priority: 0
Node: kworker1/10.8.0.70
Start Time: Wed, 14 Jul 2021 16:26:32 +0000
Labels: app=nginx
pod-template-hash=6799fc88d8
Annotations: <none>
Status: Pending
IP:
IPs: <none>
Controlled By: ReplicaSet/nginx-6799fc88d8
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 kube-api-access-ngqhw (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
kube-api-access-ngqhw:
Type: Projected (a volume that contains injected data from multiple sources)
TokenExpirationSeconds: 3607
ConfigMapName: kube-root-ca.crt
ConfigMapOptional: <nil>
DownwardAPI: true
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 7m27s default-scheduler Successfully assigned default/nginx-6799fc88d8-ltnc5 to kworker1
Warning FailedCreatePodSandBox 7m27s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "bd465da8133b3b31cea3ccf75b0bbf718336f4a06fea40aeef5ddf9a2ba74b96": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 7m16s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "eb61496041afad0a51a989e1fe1898db37a7356cd1047e0e9bad73d5bfcc9abc": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 7m5s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "a56c7fe7d8b102f38c4a84d514e18f5b995210c8efa3e945f6f12d51fc27b72b": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m54s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "1ebe31cebdac61145dbacbca661c2595ca267f4112fe77f69e7e1cd1f04b97bf": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m42s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "3de40514e0b210f27e5fe3e3c70afafef5418a23e1faed886358766d2454d434": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m29s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "1fba1c9980010c57d1dbb8ed8c6554ca16957f3b1773874fa8d652442212f6ed": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m17s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "f1296e109c11689f7f01a0c5cb8483b6d47269092dc0851afce21bb17d873dca": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m6s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "23bfe01e93b6639f4953ee8590576e4c3784a01372afcf609affbd03d5b26398": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 5m51s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "2a589a2995a530c7d9b11abd51e7315852285078d05717aefa6c8f4c0e928866": open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 119s (x17 over 5m37s) kubelet (combined from similar events): Failed to create pod sandbox: rpc error: code = Unknown desc = failed to setup network for sandbox "cd97f555abf734ef27d19ab7a13f1935dbf2e4fd2fca9e9cbb986061f174a46b": open /run/flannel/subnet.env: no such file or directory
I applied this to create flannel network Please suggest how to fix this?
lxc containers:
dminuser@testing:~/Desktop/kubernetes/lxd-provisioning$ lxc list
+----------+---------+-------------------+-----------------------------------------------+-----------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+----------+---------+-------------------+-----------------------------------------------+-----------+-----------+
| kmaster | RUNNING | 10.8.0.129 (eth0) | fd42:666f:471d:3d53:216:3eff:fedb:8af1 (eth0) | CONTAINER | 0 |
+----------+---------+-------------------+-----------------------------------------------+-----------+-----------+
| kworker1 | RUNNING | 10.8.0.229 (eth0) | fd42:666f:471d:3d53:216:3eff:fe93:ca5e (eth0) | CONTAINER | 0 |
+----------+---------+-------------------+-----------------------------------------------+-----------+-----------+
| kworker2 | RUNNING | 10.8.0.152 (eth0) | fd42:666f:471d:3d53:216:3eff:fe23:b3a4 (eth0) | CONTAINER | 0 |
+----------+---------+-------------------+-----------------------------------------------+-----------+-----------+
some output related to pods:
oot@kmaster:~# kubectl get nodes
NAME STATUS ROLES AGE VERSION
kmaster Ready control-plane,master 3m44s v1.21.0
kworker1 Ready <none> 114s v1.21.0
kworker2 Ready <none> 99s v1.21.0
oot@kmaster:~# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-558bd4d5db-569mm 0/1 ContainerCreating 0 4m1s
coredns-558bd4d5db-pzlfh 0/1 ContainerCreating 0 4m1s
etcd-kmaster 1/1 Running 0 4m4s
kube-apiserver-kmaster 1/1 Running 0 4m4s
kube-controller-manager-kmaster 1/1 Running 0 4m4s
kube-flannel-ds-8mfsv 0/1 Error 2 2m14s
kube-flannel-ds-jv9rg 1/1 Running 4 4m1s
kube-flannel-ds-wms5n 0/1 CrashLoopBackOff 2 2m29s
kube-proxy-k8mnl 0/1 CrashLoopBackOff 5 4m1s
kube-proxy-mw8ff 0/1 CrashLoopBackOff 4 2m14s
kube-proxy-qkpzl 0/1 CrashLoopBackOff 4 2m29s
kube-scheduler-kmaster 1/1 Running 0 4m4s
root@kmaster:~#
oot@kmaster:~# kubectl logs kube-flannel-ds-8mfsv
Error from server (NotFound): pods "kube-flannel-ds-8mfsv" not found
root@kmaster:~# kubectl logs kube-flannel-ds-8mfsv -n kube-system
I0715 08:13:32.125253 1 main.go:520] Determining IP address of default interface
I0715 08:13:32.125810 1 main.go:533] Using interface with name eth0 and address 10.8.0.152
I0715 08:13:32.125874 1 main.go:550] Defaulting external address to interface address (10.8.0.152)
W0715 08:13:32.125954 1 client_config.go:608] Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work.
E0715 08:14:02.128488 1 main.go:251] Failed to create SubnetManager: error retrieving pod spec for 'kube-system/kube-flannel-ds-8mfsv': Get "https://10.96.0.1:443/api/v1/namespaces/kube-system/pods/kube-flannel-ds-8mfsv": dial tcp 10.96.0.1:443: i/o timeout
