message: Include usage information for the oauth2-proxy field 'cookieSecret'
diff: @@ -491,7 +491,13 @@ authProxy:
  provider:
  clientID:
  clientSecret:
  + ## cookieSecret is used by oauth2-proxy to encrypt any credentials so that it requires
  + ## no storage. Note that it must be a particular number of bytes. Recommend using the
  + ## following to generate a cookieSecret as per the oauth2 configuration documentation
  + ## at https://pusher.github.io/oauth2_proxy/configuration :
  + ## python -c 'import os,base64; print base64.urlsafe_b64encode(os.urandom(16))'
  cookieSecret:
  + ## Use "example.com" to restrict logins to emails from example.com
  emailDomain: "*"
  ## Additional flags for oauth2-proxy
  ##
  