can --admin-socket override the saved config?

[Roguelazer]

I'm trying to build out a graceful restart strategy for proxysql (for new releases, since they happen a lot and our current strategy of using keepalived to fail over the whole host for proxysql restart suscks). My current plan is to start a new instance (on a different admin socket) with the same config as the main instance, shut down the existing instance with the PROXYSQL SHUTDOWN command (which looks like it is a graceful shutdown), then reverse the process to flip back to the "normal" instance.

I'm currently stymied by the fact that the command line argument --admin-socket seems to be ignored if the admin-mysql_ifaces global variable is set, so there's no way for me to run two instances with different admin sockets without having totally different on-disk configuration files.

Would it be reasonable to make --admin-socket either override admin-mysql_ifaces or add to it?

[renecannao]

This is an important enhancement.
The reason why admin-mysql_ifaces overrides the command line argument --admin-socket is that it is possible to change admin-mysql_ifaces at runtime.
Therefore a solution could be that admin-mysql_ifaces does not overrides the command line argument --admin-socket at startup only

[renecannao]

Enhancement applied to both 1.3.4-dev and 1.4.0