CentOS 8
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Ansible : Install2020/03/17

 
Install Ansible which is the configuration management tool.
Ansible does not require dedicated server/client program, it needs Ansible command and SSH only.
[1]
[2] Install Ansible.
# install from EPEL

[root@dlp ~]#
dnf --enablerepo=epel -y install ansible openssh-clients
[3] Define client hosts as management targets.
[root@dlp ~]#
vi /etc/ansible/ansible.cfg
# line 71: change if need (check or not SSH host key)

host_key_checking = False
[root@dlp ~]#
vi /etc/ansible/hosts
# add to the end

# set target hosts

10.0.0.50

# set targets as a group

# any group name

[target_servers]
# set targets per line

10.0.0.51
10.0.0.52
# confirm settings

# show all defined hosts

[root@dlp ~]#
ansible all --list-hosts

  hosts (3):
    10.0.0.50
    10.0.0.51
    10.0.0.52

# show specific hosts in a group

[root@dlp ~]#
ansible target_servers --list-hosts

  hosts (2):
    10.0.0.51
    10.0.0.52
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