Extend PR#2535 to enable remote debugging for CentOS63 as well (#3128)

This PR is an extension of #2535. By doing this, we also create an easy method to enable remote debug in CentOS63 as well.

Author: rafaelweingartner

packaging/centos63/cloud-management.rc

@@ -88,7 +88,7 @@ start() {
 
     echo -n "Starting $PROGNAME" "$SHORTNAME"
 
-    if daemon --pidfile $PIDFILE $DAEMON -home "$JAVA_HOME" -cp "$CLASSPATH" -pidfile "$PIDFILE" -user "$USER" \
+    if daemon --pidfile $PIDFILE $DAEMON $JAVA_DEBUG -home "$JAVA_HOME" -cp "$CLASSPATH" -pidfile "$PIDFILE" -user "$USER" \
       -errfile $LOGDIR/cloudstack-management.err $JAVA_OPTS $CLASS
         RETVAL=$?
     then

packaging/centos63/cloud-usage.rc

@@ -96,7 +96,7 @@ start() {
 
     echo -n "Starting $PROGNAME" "$SHORTNAME"
 
-    if daemon --pidfile $PIDFILE $DAEMON -home "$JAVA_HOME" -cp "$CLASSPATH" -pidfile "$PIDFILE" -user "$USER" \
+    if daemon --pidfile $PIDFILE $DAEMON $JAVA_DEBUG -home "$JAVA_HOME" -cp "$CLASSPATH" -pidfile "$PIDFILE" -user "$USER" \
       -errfile $LOGDIR/cloudstack-usage.err -outfile $LOGDIR/cloudstack-usage.out -Dpid=$$ $CLASS
         RETVAL=$?
     then

packaging/systemd/cloudstack-management.default

@@ -34,6 +34,12 @@ CLASSPATH="/etc/cloudstack/management:/usr/share/cloudstack-common:/usr/share/cl
 
 BOOTSTRAP_CLASS=org.apache.cloudstack.ServerDaemon
 
-#You can uncomment this if you want to enable Java remote debugging.
-#You can change the parameters at your will. The 'address' field defines the port to be used. 
-#JAVA_DEBUG="-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n"
+################################################################################################
+#You can uncomment one of these options if you want to enable Java remote debugging.           #
+#You can change the parameters at your will. The 'address' field defines the port to be used.  #
+################################################################################################ 
+# This option here should be used with 'systemmd' based operating systems such as CentOS7, Ubuntu 16, and so on.
+#JAVA_DEBUG="-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n"
+
+# On the other hand, this option is used by CentOS6.
+#JAVA_DEBUG="-Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n"