Add the feature to Encrypt the queryPassword parameter for LDAP in the config file directly via Ops Manager , so that text password should not be present in config file.
Keeping direct password is a security concern.
Sample format of the config file:

ldap:
authz:
queryTemplate: '{USER}?memberOf?base'
bind:
method: simple
queryPassword: <Password>
queryUser: <username>
servers: serevername:port
transportSecurity: tls
userToDNMapping: '[ { match : "xxxxx)))"
} ]