Hi Patrick, On Fri, Apr 26, 2019 at 02:55:30PM -0400, Patrick Hemmer wrote: > One other consideration is a problem I've been looking to address, and > that's better reloads. Right now the systemd unit sends a signal for the > reload, but sending a signal gets no feedback on whether the reload > operation was successful or not. > > I haven't thought about this a whole lot, but I'm thinking the way to > address it would be some sort of inquiry to the master process, which means > using the socket. So if the systemd unit file ensured that the master socket > is available, then ExecReload could be adjusted to use it and get > success/failure feedback.
A very long time ago I wanted to make haproxy itself be usable as a CLI client. Nowadays with socat available everywhere it's pointless, but it could at least be used to give a few orders to the master like "reload", "stop" or any such thing. Just like you can reload squid using "squid -k reconfigure" if my memory serves me right. The advantage here is that it would require no other tool and would know its own protocol. Willy
