dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm -y

dnf --installroot=/apps/ansible --releasever=/ install ansible -y

[root@centos8 ~]# ansible --version
ansible 2.9.18
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.6/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.6.8 (default, Nov 21 2019, 19:31:34) [GCC 8.3.1 20190507 (Red Hat 8.3.1-4)]
[root@centos8 ~]#

[csctbb]
192.168.43.151
#192.168.43.152
[csctbb:vars]
ansible_ssh_port=22
ansible_ssh_user=root
ansible_ssh_pass=root

[root@centos8 ansible]# ansible csctbb -m command -a 'uptime'
192.168.43.151 | CHANGED | rc=0 >>
 15:19:42 up 1 min,  2 users,  load average: 1.12, 0.72, 0.28

[root@centos8 ansible]# ansible csctbb -m ping
192.168.43.151 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/libexec/platform-python"
    },
    "changed": false,
    "ping": "pong"
}