inventory file

[DeanKamali]

Hi
can you please add a sample inventory file? I had to spend 1h debugging errors

Thanks

[mongodb_cluster]
mongo1.example.com	ansible_ssh_user=root inventory_hostname=mongodb_replication_master
mongo2.example.com	ansible_ssh_user=root
mongo3.example.com	ansible_ssh_user=root

[mrlesmithjr]

What sort of errors are you getting? What OS?

Make sure to have DNS functional or update /etc/hosts. You can use the following ansible-etc-hosts role and use this playbook.

---
- hosts: mongodb_cluster
  vars:
    etc_hosts_add_all_hosts: true
    mongodb_config_mongodb: true
    mongodb_bind_ip:
    # - 0.0.0.0
    - 127.0.0.1
    - "{{ ansible_enp0s8['ipv4']['address'] }}"
    mongodb_replication: true
    pri_domain_name: test.vagrant.local
  roles:
    - role: ansible-etc-hosts
    - role: ansible-mongodb
      become: true
  tasks: []

For an inventory file the following should work (You do not need to define the inventory_hostname=mongodb_replication_master):

[mongodb_cluster]
mongo1.example.com
mongo2.example.com
mongo3.example.com

By default the master is chosen by:

# Defines the node which should be considered the replication master
mongodb_replication_master: "{{ groups[mongodb_replication_group][0] }}"

The above is in defaults/main.yml.
Also, set the following to true:

# Defines if MongoDB replication is configured
mongodb_replication: false

Hope this helps!

[DeanKamali]

Hi @mrlesmithjr
Sorry for not getting back to you sooner, I was able to follow your instructions and build replica set on Centos 7.

Not sure if I should open another ticket, but I have noticed the following behavior.

Primary node host name is always set to IP, instead of DNS name.

I made sure that DNS entries are getting resolved correctly by DNS server, having said that secondary nodes are setup correctly via DNS name.

On Primary node, I had to do the following steps to fix the issue.

cfg = rs.conf()
cfg.members[0].host = "dev-mongo-node1:27017"
rs.reconfig(cfg)