You can see other available releases by
- SSH-ing into your server
cd /srv/www/example.com/releasesls -al
However, you don’t have to rollback before deploying a fix. If you’ve just implemented option 1 here you may want to run server.yml then deploy.yml for each environment. The problem in that thread was that sometimes the wrong set of group_vars/<environment> was being used, so your run of server.yml may have used the wrong group vars too. Applying your option 1 fix, then rerunning both playbooks should resolve everything.