Problem
Unable to access Kube API as anonymous user.
Cause
Anonymous user role is not created to access Kube API
Fix
Create Role binding to access Kubectl API through webapplication as anonymous user
- kubectl create rolebinding anonymous --clusterrole=cluster-admin --user=system:anonymous --namespace=default
...
Cluster role binding to services has not been performed.
Fix
Use the below command to create the cluster role and bind all services
- kubectl create clusterrolebinding serviceaccounts-cluster-admin --clusterrole=cluster-admin --group=system:serviceaccounts
...
Problem
Slaves are connected but not visible from master
...
Mismatch between the kubernetes master version and slave version
Fix
To install a specific version kubernetes below command will help, execute this in both kubernetes master and slaves
- apt-get install -y kubeadm=1.6.4-00 kubectl=1.6.4-00 kubelet=1.6.4-00 kubernetes-cni