Wikimedia Apps/Team/RESTBase services for apps/Deployment process/undo

How to rollback deploy

If things break in production and you cannot figure out what is wrong quickly then you can checkout the previous commit in the deploy repo on the deployment machine:

In #wikimedia-operations channel enter:

!log reverting mobileapps deploy <SHA-1>

Then start the actual deployment:

ssh deployment
cd /srv/deployment/mobileapps/deploy/
git checkout <previous deploy SHA>
git deploy start
git submodule update --init
git deploy sync

Then restart the services that need to be restarted.