serviço cnvrtd para systemd - cnvrtd.service

asterisk/var_lib_asterisk/scripts/cnvrtd/cnvrtd.php

@@ -131,7 +131,17 @@ function GetDaemon($notDaemon) {
         exit(0); //success
     }
 
-    //  posix_setsid();
+    /* PIDFile SYSTEMD
+     *  SYSTEMD irá monitorar esse pid para verificar se ainda está ativo
+     */
+    $PIDFile = fopen( "/var/lock/subsys/cnvrtd.pid", "w+" );
+    $pid = getmypid( )
+    if( $pid == false ){
+        exit( 1 );
+    }
+    fwrite( $PIDFile, $pid);
+    fclose( $PIDFile );
+
 }
 
 function GetHelp() {

asterisk/var_lib_asterisk/scripts/cnvrtd/cnvrtd.service

@@ -0,0 +1,30 @@
+#
+# ExecStartPre
+# If more than one command is specified, the
+# commands are invoked sequentially in the
+# order they appear in the unit file. If one
+# of the commands fails (and is not prefixed
+# with "-"), other lines are not executed,
+# and the unit is considered failed.
+#
+
+[Unit]
+Description=File Converter - Simple IP
+
+[Service]
+Type=forking
+
+# verifica se o serviço está rodando
+ExecStartPre=/bin/bash -c '! /usr/bin/systemctl is-active --quiet cnvrtd.service'
+
+# Limpa pid em /var/lock/subsys/cnvrtd.pid
+ExecStartPre=/bin/bash -c "echo > /var/lock/subsys/cnvrtd.pid"
+
+ExecStart=/var/lib/asterisk/scripts/cnvrtd/cnvrtd.php --log=/var/log/cnvrtd.log
+PIDFile=/var/lock/subsys/cnvrtd.pid
+
+Restart=always
+RestartSec=1
+
+[Install]
+WantedBy=multi-user.target