Added new global configuration directive shutdown_script.

doc/man/man5/keepalived.conf.5

@@ -40,6 +40,9 @@ and
  smtp_connect_timeout 30 # integer, seconds
  router_id my_hostname   # string identifying the machine,
                          # (doesn't have to be hostname).
+
+ # Script to run on keepalived shutdown
+ shutdown_script "/bin/true arg1 arg2"
  }
 
 

keepalived/core/global_parser.c

@@ -80,6 +80,12 @@ email_handler(vector strvec)
 	free_strvec(email_vec);
 }
 
+static void
+shutdown_script_handler (vector strvec) {
+	FREE_PTR(data->shutdown_script);
+	data->shutdown_script = set_value(strvec);
+}
+
 void
 global_init_keywords(void)
 {
@@ -92,4 +98,5 @@ global_init_keywords(void)
 	install_keyword("smtp_server", &smtpip_handler);
 	install_keyword("smtp_connect_timeout", &smtpto_handler);
 	install_keyword("notification_email", &email_handler);
+	install_keyword("shutdown_script", &shutdown_script_handler);
 }

keepalived/core/main.c

@@ -25,6 +25,8 @@
 #include "signals.h"
 #include "pidfile.h"
 #include "logger.h"
+#include "global_parser.h"
+#include "notify.h"
 
 /* global var */
 char *conf_file = NULL;		/* Configuration file */
@@ -94,6 +96,15 @@ sighup(void *v, int sig)
 		kill(checkers_child, SIGHUP);
 }
 
+vector main_init_keywords(void) {
+	vector keywords;
+
+	/* global definitions mapping */
+	global_init_keywords();
+
+	return keywords;
+}
+
 /* Terminate handler */
 void
 sigend(void *v, int sig)
@@ -102,6 +113,21 @@ sigend(void *v, int sig)
 
 	/* register the terminate thread */
 	log_message(LOG_INFO, "Terminating on signal");
+
+
+	/* do we have any shutdown script to run? */
+	if (
+			data != NULL &&
+			data->shutdown_script != NULL &&
+			strlen(data->shutdown_script) > 0
+	) {
+		log_message(
+			LOG_INFO,
+			"Running shutdown script: '%s'", data->shutdown_script
+		);
+		notify_exec(data->shutdown_script);
+	}
+
 	thread_add_terminate_event(master);
 
 	if (vrrp_child > 0) {
@@ -323,6 +349,10 @@ main(int argc, char **argv)
 		goto end;
 	}
 
+	/* Parse configuration file */
+	data = alloc_global_data();
+	init_data(conf_file, main_init_keywords);
+
 	/* daemonize process */
 	if (!(debug & 2))
 		xdaemon(0, 0, 0);

keepalived/include/global_data.h

@@ -51,6 +51,7 @@ typedef struct _conf_data {
 	struct sockaddr_storage smtp_server;
 	long smtp_connection_to;
 	list email;
+	char *shutdown_script;
 } conf_data_t;
 
 /* Global vars exported */