net.server_epoll: Add support for systemd socket activation
Allows creating listening sockets and accepting client connections
before Prosody starts.
This is unlike normal Prosody dynamic resource management, where ports
may added and removed at any time, and the ports defined by the config.
Weird things happen if these are closed (e.g. due to reload) so here we
prevent closing and ensure sockets are reused when opened again.
-- This module will "reset" the server when the client connection count drops
-- to zero. This is somewhere between a reload and a full process restart.
-- It is useful to ensure isolation between test runs, for example. It may
-- also be of use for some kinds of manual testing.
module:set_global();
local hostmanager = require "prosody.core.hostmanager";
local function do_reset()
module:log("info", "Performing reset...");
local hosts = {};
for host in pairs(prosody.hosts) do
table.insert(hosts, host);
end
module:fire_event("server-resetting");
for _, host in ipairs(hosts) do
hostmanager.deactivate(host);
hostmanager.activate(host);
module:log("info", "Reset complete");
module:fire_event("server-reset");
end
end
function module.add_host(host_module)
host_module:hook("resource-unbind", function ()
if next(prosody.full_sessions) == nil then
do_reset();
end
end);
end
local console_env = module:shared("/*/admin_shell/env");
console_env.debug_reset = {
reset = do_reset;
};