How to set host_key_checking=false in ansible inventory file?

Question

I would like to use ansible-playbook command instead of \'vagrant provision\'. However setting host_key_checking=false in the ho

Answer 1

^{Due to the fact that I answered this in 2014, I have updated my answer to account for more recent versions of ansible.}

Yes, you can do it at the host/inventory level (Which became possible on newer ansible versions) or global level:

inventory:

Add the following.

ansible_ssh_common_args='-o StrictHostKeyChecking=no'

host:

Add the following.

ansible_ssh_extra_args='-o StrictHostKeyChecking=no'

hosts/inventory options will work with connection type ssh and not paramiko. Some people may strongly argue that inventory and hosts is more secure because the scope is more limited.

global:

Ansible User Guide - Host Key Checking

• You can do it either in the /etc/ansible/ansible.cfg or ~/.ansible.cfg file:

  [defaults]
  host_key_checking = False
  

• Or you can setup and env variable (this might not work on newer ansible versions):

  export ANSIBLE_HOST_KEY_CHECKING=False