Гитлабовцы молодцы что у них issue открыты, можно многому научиться как оно в жизни бывает, а не в блогах.
"2019-01-07 While validating maintenance commands against a set of staging hosts, an erroneous command was ran which ended up touching not only the intended test hosts but also ended up touching 33 production hosts which included services such as pages, patroni, postgres, prometheus, pubsub and package."
https://gitlab.com/gitlab-com/gl-infra/production/issues/640