To launch the twitterbot:

ANSIBLE_HOST_KEY_CHECKING="false" ansible-playbook -e server_count=1 launch.yml

The playbook assumes that there is a file twitter_secrets.json in the same directory, with the following format:

{
    "TWITTER_CONSUMER_KEY":"example",
    "TWITTER_CONSUMER_SECRET":"example",
    "TWITTER_ACCESS_TOKEN_KEY":"example",
    "TWITTER_ACCESS_TOKEN_SECRET":"example"
}

The playbook also depends on a file, in the same directory, called secrets.yml, with the following format:

secrets:
  cloud_region: example_region
  vpc_id: example_vpc_id
  vpc_subnet_id: example_subnet_id
  key_name: example_key_name
  home_ip: example_ip