MINOR: config/proxy: Warn if a TCP proxy without backend is upgradable to HTTP
If a 'switch-mode http' tcp action is configured on a listener with no
backend, a warning is displayed to remember HTTP connections cannot be
routed to TCP servers. Indeed, backend connection is still established using
the proxy mode.
diff --git a/src/cfgparse.c b/src/cfgparse.c
index 7f82409..6f8522e 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -2554,6 +2554,14 @@
}
}
+ /* Warn is a switch-mode http is used on a TCP listener with servers but no backend */
+ if (!curproxy->defbe.name && LIST_ISEMPTY(&curproxy->switching_rules) && curproxy->srv) {
+ if ((curproxy->options & PR_O_HTTP_UPG) && curproxy->mode == PR_MODE_TCP)
+ ha_warning("Proxy '%s' : 'switch-mode http' configured for a %s %s with no backend. "
+ "Incoming connections upgraded to HTTP cannot be routed to TCP servers\n",
+ curproxy->id, proxy_mode_str(curproxy->mode), proxy_type_str(curproxy));
+ }
+
if (curproxy->table && curproxy->table->peers.name) {
struct peers *curpeers;