docker - Flannel fails in kubernetes cluster due to failure of subnet manager -


i running etcd, kube-apiserver, kube-scheduler, , kube-controllermanager on master node kubelet , kube-proxy on minion node follows (all kube binaries kubernetes 1.7.4):

# [master node] ./etcd ./kube-apiserver --logtostderr=true --etcd-servers=http://127.0.0.1:2379 --service-cluster-ip-range=10.10.10.0/24 --insecure-port 8080 --secure-port=0 --allow-privileged=true --insecure-bind-address 0.0.0.0 ./kube-scheduler --address=0.0.0.0 --master=http://127.0.0.1:8080 ./kube-controller-manager --address=0.0.0.0 --master=http://127.0.0.1:8080  # [minion node] ./kubelet --logtostderr=true --address=0.0.0.0 --api_servers=http://$master_ip:8080 --allow-privileged=true ./kube-proxy --master=http://$master_ip:8080

after this, if execute kubectl --all-namespaces , kubectl nodes, get

namespace   name             cluster-ip   external-ip   port(s)   age default     svc/kubernetes   10.10.10.1   <none>        443/tcp   27m  name       status    age       version minion-1   ready     27m       v1.7.4+793658f2d7ca7

then, apply flannel follows:

kubectl apply -f kube-flannel-rbac.yml -f kube-flannel.yml

now, see pod created, error:

namespace     name                    ready     status             restarts   age kube-system   kube-flannel-ds-p8tcb   1/2       crashloopbackoff   4          2m

when check logs inside failed container in minion node, see following error:

failed create subnetmanager: unable initialize inclusterconfig: open /var/run/secrets/kubernetes.io/serviceaccount/token: no such file or directory

my question is: how resolve this? ssl issue? step missing in setting cluster?


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