To set up a new Linux bot, perform the following steps:

Install Ubuntu 16.04, setting up a user chrome-bot and a hostname like skia-e-linux-NNN. It is preferable to connect to wifi to allow for updates.

From the machine:

ifconfig #make note of the ethernet name

From the jumphost:

sudo ansible-playbook -i "${IP_ADDR}," -c local setup_linux_bot.yml