Ansible : Install2024/07/31

Install Ansible which is the configuration management tool.

Ansible does not require dedicated server/client program, it needs Ansible command and SSH only.

[1]

Start SSH service on all client hosts which you'd like to manage with Ansible.

[2]

Install Ansible.

root@dlp:~#

apt -y install ansible-core

root@dlp:~#

ansible --version

ansible [core 2.16.3]
  config file = None
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.12.3 (main, Apr 10 2024, 05:33:47) [GCC 13.2.0] (/usr/bin/python3)
  jinja version = 3.1.2
  libyaml = True

[3]	Define client hosts as management targets.

root@dlp:~#

mkdir /etc/ansible

root@dlp:~#

vi /etc/ansible/ansible.cfg

# create new : set parameters if need (SSH host key checking)

[defaults]
host_key_checking=False

root@dlp:~#

vi /etc/ansible/hosts

# create new
# 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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