Objective

For this guide we are going to setup the playbook to establish passwordless SSH logins with the remote hosts. Passwordless logins is a great convenience when connecting to multiple servers.

Ansible reference

Ansible installed on your local machine. For installation instructions, follow the official Ansible installation documentation. Familiarity with Ansible playbooks. For review, check out Configuration Management 101: Writing Ansible Playbooks.

Download the tool

Clone the repository to your ansible-enabled host: https://github.com/henshitou/ansible-ssh.git

Prerequisites

Check below command are available to the PATH of the user you will be running the playbook as.

ssh-keygen ssh-copy-id sshpass

Preparations before you run

Edit the hosts file and define your environment's information

ssh_key_filename

the filename of the new SSH key to be generated and stored under your .ssh folder of your localhost.

remote_machine_username

the username of the remote machines. If you are applying the procedure to multiple hosts.

remote_machine_password

the password of the "remote_machine_username" remote machines.

ansible_setup_passwordless_setup_group

fill in the list of hosts that you want to establish the passwordless login with.

How to run it

Execution command :

ansible-playbook -i hosts ansible_ssh.yml