define replicaSet priority for each host?

[blair-anson]

Is is possible to define the replicaSet priorities for each host?
The problem I have is that the host that runs the rs.initiate() command often does not become the Primary instance in the set. So running rs.reconfig() fails.
Ideally it would be great to define it as part of mongodb_conf_replSet

The playbook I'm running...

- hosts: localhost

  vars_files:
     - ./variables.yml

  roles:
    - { role: Stouts.mongodb }

  vars:
    mongodb_version: "3.2.12"
    mongodb_conf_auth: no
    mongodb_conf_dbpath: /data/db
    mongodb_conf_port: 27017
    mongodb_conf_bind_ip: 0.0.0.0
    mongodb_conf_replSet: rs0/{{ replicaSecondHost }}:27017,{{ replicaThirdHost }}:27017
    mongodb_shell:
      local:
        - rs.initiate()
        - cfg = rs.conf()
        - cfg.members[2].priority = 0
        - rs.reconfig(cfg)