File/Dir Structure localhost roles # tree

.
├── readme.md
├── site.yml
└── webserver
    ├── files
    │   ├── createswap.sh
    │   └── nginxkeyadd.sh
    ├── handlers
    │   └── main.yml
    ├── tasks
    │   └── main.yml
    ├── templates
    │   ├── helloworld.conf.j2
    │   └── index.html.j2
    └── vars
        └── main.yml
        
ansible-playbook --private-key=/root/key/privatekey.pem /etc/ansible/roles/site.yml

IN ansible configuration ansible.cfg make sure to have below lines to disbale ssh prompt for host key checks [defaults] host_key_checking = False

Two options - First is setting the environment variable ANSIBLE_HOST_KEY_CHECKING=False.

The second way to set it is to put it in an ansible.cfg file, and that's a really useful option because you can either set that globally (at system or user level, in /etc/ansible/ansible.cfg or ~/.ansible.cfg), or in an config file in the same directory as the playbook you are running.

To do that, make an ansible.cfg file in one of those locations, and include this:

[defaults] host_key_checking = False You can also set a lot of other handy defaults there, like whether or not to gather facts at the start of a play, whether to merge hashes declared in multiple places or replace one with another, and so on. There's a whole big list of options here in the Ansible docs.

http://jesseszwedko.com/post/ansible-aws-launch-configuration/ #!/bin/bash

aws ec2 describe-instances \
--filters "Name=tag:Database,Values=true" \
--query 'Reservations[*].Instances[*].PrivateDnsName' \
--output text \
> /etc/databases

systemctl start my-webservice