-e FERNETKEY=`# optional` `# Optionally define a custom fernet key, has to be base64-encoded 32-byte (only needed if container is frequently recreated, or if using multi-node setups, invalidating previous authentications)` \
-e CERTFILE=`# optional` `# Point this to a certificate file to enable HTTP over SSL (HTTPS) for the ldap auth daemon` \
-e KEYFILE=`# optional` `# Point this to the private key file, matching the certificate file referred to in CERTFILE` \