Fix CheckRouterAnswer's isMaster report

If we got invalid/unsuccessed answer from CheckRouterAnswer, set master to
false.

Also add missed scripts.

patches/systemvm/debian/config/root/checkrouter.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+tail -n 1 /root/keepalived.log | grep "Status"

scripts/network/domr/getRouterStatus.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+usage() {
+  printf "Usage:\n %s <domR eth1 ip> \n" $(basename $0) >&2
+  printf " %s <domR eth1 ip> \n" $(basename $0) >&2
+}
+
+cert="/root/.ssh/id_rsa.cloud"
+domRIp=$1
+shift
+
+# check if gateway domain is up and running
+check_gw() {
+  ping -c 1 -n -q $1 > /dev/null
+  if [ $? -gt 0 ]
+  then
+    sleep 1
+    ping -c 1 -n -q $1 > /dev/null
+  fi
+  return $?;
+}
+
+
+# Check if DomR is up and running. If not, exit with error code 1.
+check_gw "$domRIp"
+if [ $? -gt 0 ]
+then
+  exit 1
+fi
+
+tmpfile=/tmp/$RANDOM.log
+
+scp -P 3922 -q -o StrictHostKeyChecking=no -i $cert root@$domRIp:/root/keepalived.log $tmpfile
+if [ $? -ne 0 ]
+then
+    exit $?
+fi
+result=`tail $tmpfile -n 1`
+echo $result

server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java

@@ -725,18 +725,24 @@ public class VirtualNetworkApplianceManagerImpl implements VirtualNetworkApplian
                     command.setAccessDetail(NetworkElementCommand.ROUTER_NAME, router.getInstanceName());
                     final CheckRouterAnswer answer = (CheckRouterAnswer) _agentMgr.easySend(router.getHostId(), command);
                     if (answer != null) {
-                        router.setIsMaster(answer.getIsMaster());
-                        Transaction txn = Transaction.open(Transaction.CLOUD_DB);
-                        try {
-                            txn.start();
-                            _routerDao.update(router.getId(), router);
-                            txn.commit();
-                        } catch (Exception e) {
-                            txn.rollback();
-                            s_logger.warn("Unable to update router status for account: " + router.getAccountId());
-                        } finally {
-                            txn.close();
+                        if (answer.getResult()) {
+                            router.setIsMaster(answer.getIsMaster());
+                        } else {
+                            router.setIsMaster(false);
                         }
+                    } else {
+                        router.setIsMaster(false);
+                    }
+                    Transaction txn = Transaction.open(Transaction.CLOUD_DB);
+                    try {
+                        txn.start();
+                        _routerDao.update(router.getId(), router);
+                        txn.commit();
+                    } catch (Exception e) {
+                        txn.rollback();
+                        s_logger.warn("Unable to update router status for account: " + router.getAccountId());
+                    } finally {
+                        txn.close();
                     }
                 }
             }