yum install ansible

sed -i 's/#host_key_checking = False/host_key_checking = False/g' /etc/ansible/ansible.cfg

[root@192 et]# cat hosts

[own_host]

web.ansible.bd.com

- name: Install screen

  hosts: own_host

  tasks:

    - name: start install screen

      yum:

        name: screen

        state: installed

ssh-keygen -t rsa

ssh-copy-id -i ~/.ssh/id_rsa.pub 192.168.0.100

[root@web ~]# ssh-keygen -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa):

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

SHA256:HC81CyaFnd4u2uxEhIg6CEISxw+XN/t4hP1vxfkbohY root@web.ansible.bd.com

The key's randomart image is:

+---[RSA 2048]----+

|o+.  . o..       |

|o.o.o.+oo        |

|o .+..o*=.o      |

|+.  . o=+=.o     |

|+      +Soo  . . |

| .    ..+.oE  +  |

|       =.. ..o o |

|      ..o  .+ . o|

|       .. .o   ..|

+----[SHA256]-----+

[root@web ~]#

[root@web ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub 192.168.0.100

/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"

The authenticity of host '192.168.0.100 (192.168.0.100)' can't be established.

ECDSA key fingerprint is SHA256:bqCO0nWIDL1xZsor1O5E819ZLoV2aE+TDOmiKNBM+sQ.

ECDSA key fingerprint is MD5:21:18:a5:32:7f:9e:0e:48:41:d7:86:21:2a:36:8a:ee.

Are you sure you want to continue connecting (yes/no)? yes

/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed

/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys

root@192.168.0.100's password:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh '192.168.0.100'"

and check to make sure that only the key(s) you wanted were added.

[root@web ~]#

ansible-playbook -i /opt/et/hosts /opt/et/screen.yml

[root@web ~]# ansible-playbook -i /opt/et/hosts /opt/et/screen.yml

PLAY [Install screen] *********************************************************************************************************************************************************************

TASK [Gathering Facts] ********************************************************************************************************************************************************************

ok: [web.ansible.bd.com]

TASK [start install screen] ***************************************************************************************************************************************************************

changed: [web.ansible.bd.com]

PLAY RECAP ********************************************************************************************************************************************************************************

web.ansible.bd.com         : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

[root@web ~]#