Most of the components provided in this project need to know the namespace. For Kubernetes (1.3+) the namespace is made available to pod as part of the service account secret and automatically detected by the client. For earlier version it needs to be specified as an env var to the pod. A quick way to do this is:

env:
- name: "KUBERNETES_NAMESPACE"
  valueFrom:
    fieldRef:
      fieldPath: "metadata.namespace"