hosts.ini

[all:vars]
ansible_python_interpreter=/usr/bin/python3

[odroid_hc2s]
# hc2-01 MAC Address: 00:1E:06:37:0F:3A
hc2-01 ansible_host=192.168.1.31

# hc2-02 MAC Address: 00:1E:06:37:0F:32
hc2-02 ansible_host=192.168.1.32

# hc2-03 MAC Address: 00:1E:06:37:0E:D6
hc2-03 ansible_host=192.168.1.33

# hc2-04 MAC Address:
;hc2-04 ansible_host=192.168.1.34

[gluster_cluster]
hc2-[01:03]

[backups]
hc2-04