Gitlab Error: couldn't deduce an advertise address: no private IP found, explicit advertise addr not provided

Gitlab log view:

gitlab-ctl tail

Something error:

cluster.go:154 component=cluster err="couldn't deduce an advertise address: no private IP found, explicit advertise addr not provided"

How to fix !

edit file gitlab.rb

vi /etc/gitlab/gitlab.rb

Add the following code

alertmanager['flags'] = {

  'cluster.advertise-address' => "127.0.0.1:9093",

}

Then

gitlab-ctl reconfigure

gitlab-ctl restart

Done ! now recheck gitlab log

gitlab-ctl tail alertmanager

Check alertmanager service

netstat -tulpn | grep LISTEN

output 

tcp        0      0 127.0.0.1:9093              0.0.0.0:*                   LISTEN      30633/alertmanager