Openstack node address change

Normally in the production environment ,OpenStack Each node will do HA, You can use the domain name mechanism to manage nodes .

But sometimes if you use IP Address , Once it changes IP Need to update the configuration .

If you want to change it , There are mainly two aspects of information .

One is the configuration file , Basically all in /etc/ Under the table of contents .

You can start with grep Look under the address to see if it can be directly replaced , If you can , perform

$ sed -i "s/old_ip/new_ip/g" `grep old_ip -rl /etc` that will do .

The other is database , This is slightly more complicated .

commonly openstack There are multiple databases in database, What needs to be modified is keystone database Of endpoint In the table . Log in to sql after , The order is as follows

mysql>use keystone;

mysql> update endpoint set     -> url=replace(url,'1.1.1.1','2.2.2.2');

Others are like token Contents in the table or others database Chinese content , You can see whether it needs to be modified according to your own situation .

Finally, restart all related services , Or simply restart the machine .