BUG/MEDIUM: server/checks: Init server check during config validity check
The options and directives related to the configuration of checks in a backend
may be defined after the servers declarations. So, initialization of the check
of each server must not be performed during configuration parsing, because some
info may be missing. Instead, it must be done during the configuration validity
check.
Thus, callback functions are registered to be called for each server after the
config validity check, one for the server check and another one for the server
agent-check. In addition deinit callback functions are also registered to
release these checks.
This patch should be backported as far as 1.7. But per-server post_check
callback functions are only supported since the 2.1. And the initcall mechanism
does not exist before the 1.9. Finally, in 1.7, the code is totally
different. So the backport will be harder on older versions.
(cherry picked from commit 8892e5d30b2c20fce04f2f44202bc1f127076c15)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 698f6c695fe1904b54e978c04f6a3268db9af37f)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/include/proto/checks.h b/include/proto/checks.h
index 2b285f3..695fe84 100644
--- a/include/proto/checks.h
+++ b/include/proto/checks.h
@@ -3,7 +3,7 @@
Functions prototypes for the checks.
Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
-
+
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation, version 2.1
@@ -50,6 +50,8 @@
const char *init_check(struct check *check, int type);
void free_check(struct check *check);
+void deinit_srv_check(struct server *srv);
+void deinit_srv_agent_check(struct server *srv);
int init_email_alert(struct mailers *mailers, struct proxy *p, char **err);
void send_email_alert(struct server *s, int priority, const char *format, ...)