Automated deploys

Terra's deploys are handled by CircleCI.

Dev

Dev is deployed after every merge. Branches are deployed if they have an open PR.
These deploy processes are documented here, including requirements of passing tests.

Prod

Prod is deployed every weekday morning, by finding the artifact in Circle from the most recent Dev deploy.
This process is documented here.

Preventing scheduled deploys (prod)

1. Go to the environment variables page in Circle for the prod deploy repo and create a variable called PREVENT_DEPLOY with the value true. As long as this variable exists with that value, scheduled prod deploys will not happen.
2. Create a ticket on the Terra-UI Sprint board titled "re-enable prod deploys" so that we are tracking that someone needs to turn prod back on by deleting the PREVENT_DEPLOY variable.