prometheus: 
  alertmanager:
    enabled: false
  alertmanagerFiles:
    alertmanager.yml: {}
  kubeStateMetrics:
    enabled: false
  nodeExporter:
    enabled: false
  pushgateway:
    enabled: false
  server:
    persistentVolume:
      enabled: false
    extraArgs:
      # minimal possible values
      storage.tsdb.retention: 6h
      storage.tsdb.min-block-duration: 2h
      storage.tsdb.max-block-duration: 2h
  serverFiles:
    alerts: {}
    prometheus.yml:
      remote_write:
        - url: _URL_
          basic_auth:
            password: _PASSWORD_
            username: _USERNAME_
    rules: {}