Comment 20 for bug 1879798

Verified Bionic/Stein:

Before:

$ juju ssh designate-bind/0 -- sudo rndc showzone example.com.
zone "example.com" { type slave; file "slave.example.com.2c99109d-e825-4ebd-9976-5844987bd376"; masters { 10.5.3.106 port 5354; 10.5.3.29 port 5354; 10.5.1.105 port 5354; }; };

juju add-unit designate # 10.5.0.89

zone is not updated on designate-bind unit to include the new zone master.

After:

juju remove-unit designate/0 # 10.5.3.106

$ juju ssh designate-bind/0 -- sudo rndc showzone example.com.
zone "example.com" { type slave; file "slave.example.com.2c99109d-e825-4ebd-9976-5844987bd376"; masters { 10.5.1.105 port 5354; 10.5.0.89 port 5354; 10.5.3.29 port 5354; }; };