I currently have one server with an Apache-Django app running on it along with postgresDB.
I would like to add another server with the Apache-Django app that is connected to the same postgresDB instance. I would like both the apps to be synchronized and running.
Both of the apps would run, but only one will be in the requested, active passive state - should I use a proxy server for this?
How should I do this?
Hi @Ariel Livshits if you have under control all the underlying issues of being in this architecture like handling static files or sessions (to mention a few), you could accomplish this using HAProxy as load balancer. It's very simple actually:
Automatic failover without failback
Sample server configuration:
| HAProxy | ------------- | ` |active ` backup | ` ------ ------ | s1 | | s2 |The configuration below makes HAProxy to use s1 when available, otherwise fail over to s2 if available. When a failover has occured, no failback will be processed automatically, thanks to the stick table:
peers LB peer LB1 10.0.0.98:1234 peer LB2 10.0.0.99:1234 defaults mode http option http-server-close timeout client 20s timeout server 20s timeout connect 4s frontend ft_app bind 10.0.0.100:80 name app default_backend bk_app backend bk_app stick-table type ip size 1 nopurge peers LB stick on dst server s1 10.0.0.1:80 check server s2 10.0.0.2:80 check backup
