adding on server.sh option to get ip address for khanat server on docker

dist/docker/server/debian/jessie/x86_64/server.sh

@@ -20,6 +20,7 @@ declare -i STOPKHANAT=0
 declare -i CLEANCONTAINERKHANAT=0
 declare -i CONNECTSSHKHANAT=0
 declare -i KHANAT_CLIENT_VERSION=1
+declare -i SHOWIPKHANATSERVER=0
 
 declare IMAGEGENERICSERVER="server_generic_debian_jessie_x86_64"
 declare IMAGEKHANATSERVER="server_khanat_debian_jessie_x86_64"
@@ -49,6 +50,7 @@ options:
   -n, --no-launch-khanat : Doesn't launch khanat server
   -s, --stop-server : Stop server khanat
   -c, --clean-container-khanat : Remove old server khanat (stopped)
+  -i, --show-ip-khanat-server : show ip address for khanat server (launch under docker)
   --ssh : connect on khanat server (with ssh) [Exclusive action, can't execute other action]
   --client-version=[INTEGER] : version client khanat (we need to communicate with our server)
   
@@ -82,7 +84,7 @@ function msg_error()
 # MAIN
 #
 
-msg_info "START"
+#msg_info "START"
 
 calldir="$(dirname $0)"
 basedir=$(cd $calldir; pwd)
@@ -137,6 +139,10 @@ do
          KHANATSERVER=1
          shift
          ;;
+      -i|--show-ip-khanat-server)
+         SHOWIPKHANATSERVER=1
+         shift
+         ;;
       --client-version*)
          KHANAT_CLIENT_VERSION="${1#*=}"
          shift
@@ -157,6 +163,11 @@ function chrashed()
 
 trap chrashed EXIT
 
+if [[ $SHOWIPKHANATSERVER -eq 0 ]]
+then
+   msg_info "START"
+fi
+
 msg_debug "prg: $0"
 
 docker -v 1>/dev/null
@@ -179,15 +190,25 @@ case "$(uname -m)" in
      ;;
 esac
 
-if [[ $CONNECTSSHKHANAT -ne 0 ]]
+if [[ ($CONNECTSSHKHANAT -ne 0) || ($SHOWIPKHANATSERVER -ne 0) ]]
 then
    listcontainer="$(docker ps -qf 'status=running' -f 'ancestor='"${IMAGEKHANATSERVER}"'')"
    if [[ ${#listcontainer[@]} -eq 1 ]]
    then
-      
       ipaddress=$(docker inspect --format="{{ .NetworkSettings.IPAddress }}" ${listcontainer[@]})
-      ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no compil@$ipaddress
    fi
+fi
+
+if [[ $SHOWIPKHANATSERVER -ne 0 ]]
+then
+   trap '' EXIT
+   echo "$ipaddress"
+   exit 0
+fi
+
+if [[ $CONNECTSSHKHANAT -ne 0 ]]
+then
+   ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no compil@$ipaddress
    trap '' EXIT
    msg_info "END SSH"
    exit 0