Add --authentication-skip-lookup=true flag

[thorn3r]

The example deployment manifest for the Linode CCM uses the cluster-admin role. When deploying the CCM with a limited clusterrole, the CCM fails to start if it doesn't have access to get on configmaps:

W0222 19:11:17.239825       1 requestheader_controller.go:193] Unable to get configmap/extension-apiserver-authentication in kube-system.  Usually fixed by 'kubectl create rolebinding -n kube-system ROLEBINDING_NAME --role=extension-apiserver-authentication-reader --serviceaccount=YOUR_NS:YOUR_SA'
unable to load configmap based request-header-client-ca-file: configmaps "extension-apiserver-authentication" is forbidden: User "system:serviceaccount:kube-system:default" cannot get resource "configmaps" in API group "" in the namespace "kube-system"

This seems to be related to upstream issue, see: kubernetes/cloud-provider#34

It looks like Digital Ocean ran into a similar problem after updating their K8s deps (digitalocean/digitalocean-cloud-controller-manager#217). Possible short-term solutions could be to add the --authentication-skip-lookup=true flag to the deployment example manifest, or to hardcode this option in the binary