I am running 2 node cluster using vagrant, configured with kubeadm command. When I setup the cluster flannel was running on all three nodes. Now i don't see flannel running in master node. because of this overlay network is not working from master node.
Used this yaml files to configure flannel.
kubectl create -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel-rbac.yml
kubectl create -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
# kubectl get pods --all-namespaces -o wide |grep fla
kube-system kube-flannel-ds-0d3bn 2/2 Running 0 20m 192.168.15.102 node-01
kube-system kube-flannel-ds-86bzs 2/2 Running 0 20m 192.168.15.103 node-02
# k get nodes -o wide
NAME STATUS AGE VERSION EXTERNAL-IP OS-IMAGE KERNEL-VERSION
master01 Ready 26d v1.6.2 <none> CentOS Linux 7 (Core) 3.10.0-514.10.2.el7.x86_64
node-01 Ready 26d v1.6.2 <none> CentOS Linux 7 (Core) 3.10.0-514.10.2.el7.x86_64
node-02 Ready 26d v1.6.2 <none> CentOS Linux 7 (Core) 3.10.0-514.10.2.el7.x86_64How can I start the flannel pod in my master node?
I see you using RBAC, maybe there are not enough rights at a node. Try creating a clusterrolebinding with the necessary rights
$ kubectl create clusterrolebinding nodeName --clusterrole=system:node -- user=nodeName
or can use cluster-admin for testing