set ENV['prometheus_multiproc_dir'] in config/boot.rb instead of config.ru
Set ENV['prometheus_multiproc_dir'] in config/boot.rb instead of config.ru
Backport of: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12201
/cc: @tiagonbotelho
Set ENV['prometheus_multiproc_dir'] in config/boot.rb instead of config.ru
Backport of: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12201
/cc: @tiagonbotelho