Get pidfile from config file if not available in command options

src/suricata.c

@@ -1383,6 +1383,11 @@ int main(int argc, char **argv)
 
     if (daemon == 1) {
         Daemonize();
+        if (pid_filename == NULL) {
+            if (ConfGet("pid-file", &pid_filename) == 1) {
+                SCLogInfo("Use pid file %s from config file.", pid_filename);
+           }
+        }
         if (pid_filename != NULL) {
             if (SCPidfileCreate(pid_filename) != 0) {
                 pid_filename = NULL;

suricata.yaml

@@ -19,6 +19,10 @@
 # to get the runmode custom modes that can be used here for a particular runmode.
 #runmode: auto
 
+# Default pid file.
+# Will use this file if no --pidfile in command options.
+#pid-file: /var/run/suricata.pid
+
 # Preallocated size for packet. Default is 1514 which is the classical
 # size for pcap on ethernet. You should adjust this value to the highest
 # packet size (MTU + hardware header) on your system.