Add or remove a host from the known_hosts file using ansible.

This is especially useful for a new machine where you want to do something like use the 'git' module with ssh. If you don't prime the known_hosts file, ansible will hang because it is waiting for input you can't give it.

Copy the known_hosts bash script into a library folder adjacent to your ansible playbook. You can then define a task like this:

---
- hosts: myhosts
  user: deploy
  tasks:
    - name: Ensure github is in the known_hosts file
      known_hosts: host=github.com state=present

Required. The host to add or remove. Will also look up the IP address and add that as well.

The ssh port. Defaults to 22

The known_hosts file to append/remove the keys from. Defaults to $HOME/.ssh/known_hosts

'present' to add the host, 'absent' to remove it. Defaults to 'present'

Python is considered good form for Ansible modules, but for now it was much easier to convert something I already had written in bash. It does the job, but I may some day convert it to Python in order to submit it to ansible.cc

MIT -- See LICENSE file.