Adding Authorized SSH Keys Using Ansible

Wed, 22 Jun 2016 00:23:00 +0530

You can easily manage and deploy multiple public SSH keys per user using Jinja templating within an Ansible playbook.

Variable Definition (`vars.yml`)

vars:
 ssh_user_key:
 - user: ritesh
 exclusive: no
 keys:
 - ritesh.centos
 - ritesh.fedora

Ansible Task

- name: Upload user authorized SSH keys
 authorized_key:
 user: "{{ item.user }}"
 exclusive: "{{ item.exclusive if item.exclusive is defined else 'no' }}"
 key: "{% for file_name in item['keys'] %}{{ lookup('file', file_name) }}{% if not loop.last %}{{ '\n' }}{% endif %}{% endfor %}"
 become: yes
 become_user: "{{ item.user }}"
 with_items:
 - "{{ ssh_user_key }}"
 tags:
 - setup-user-ssh-client-key

Closing a Hung SSH Session

Fri, 21 Nov 2008 15:51:00 +0530

How does one close an SSH session that has hung or disconnected from the server?

Use the key sequence ~. (tilde followed by a dot, typed at the beginning of a new line). For more information, check the SSH manual:

man ssh

Background

I was happily working on my system, accessing my test box remotely. Suddenly, there was darkness—or what most people call a power outage. Since my UPS was in the repair shop, my machine shut down and left me with a frozen SSH session upon rebooting and reconnecting.

Ssh on Life

Adding Authorized SSH Keys Using Ansible

Variable Definition (vars.yml)

Ansible Task

Closing a Hung SSH Session

Background

Variable Definition (`vars.yml`)