[Ovirt-devel] [PATCH server] added ovirt vnc proxy server, to proxy vnc request to managed vms

Mohammed Morsi mmorsi at redhat.com
Thu May 7 12:49:11 UTC 2009


run on startup by default like the other ovirt services
---
 conf/ovirt-vnc-proxy                       |   49 ++++++++++++++
 installer/modules/ovirt/manifests/ovirt.pp |    1 +
 ovirt-server.spec.in                       |    5 ++
 src/vnc-proxy/vnc-proxy.rb                 |   94 ++++++++++++++++++++++++++++
 4 files changed, 149 insertions(+), 0 deletions(-)
 create mode 100755 conf/ovirt-vnc-proxy
 create mode 100644 src/vnc-proxy/vnc-proxy.rb

diff --git a/conf/ovirt-vnc-proxy b/conf/ovirt-vnc-proxy
new file mode 100755
index 0000000..b3f565f
--- /dev/null
+++ b/conf/ovirt-vnc-proxy
@@ -0,0 +1,49 @@
+#!/bin/bash
+#
+#
+# ovirt-vnc-proxy       startup script for ovirt-vnc-proxy
+#
+# chkconfig: - 97 03
+# description: ovirt-vnc-proxy proxies vnc requests to ovirt
+#    managed vms.
+#
+
+DAEMON=/usr/share/ovirt-server/vnc-proxy/vnc-proxy.rb
+
+. /etc/init.d/functions
+
+start() {
+    echo -n "Starting ovirt-vnc-proxy: "
+    daemon $DAEMON
+    RETVAL=$?
+    echo
+}
+
+stop() {
+    echo -n "Shutting down ovirt-vnc-proxy: "
+    killproc vnc-proxy.rb
+    RETVAL=$?
+    echo
+}
+
+case "$1" in
+    start)
+	start
+	;;
+    stop)
+	stop
+	;;
+    restart)
+	stop
+	start
+	;;
+    status)
+	status $DAEMON
+	RETVAL=$?
+	;;
+    *)
+      echo "Usage: ovirt-vnc-proxy {start|stop|restart|status}"
+      exit 1
+  ;;
+esac
+exit $RETVAL
diff --git a/installer/modules/ovirt/manifests/ovirt.pp b/installer/modules/ovirt/manifests/ovirt.pp
index 09b1925..f7df804 100644
--- a/installer/modules/ovirt/manifests/ovirt.pp
+++ b/installer/modules/ovirt/manifests/ovirt.pp
@@ -196,6 +196,7 @@ class ovirt::setup {
         firewall_rule{"http": destination_port => "80"}
         firewall_rule {"https": destination_port => '443'}
         firewall_rule {"host-browser": destination_port => '12120'}
+        firewall_rule {"vnc-proxy": destination_port => '5500'}
         firewall_rule {"qpidd": destination_port => '5672'}
         firewall_rule {"collectd": destination_port => '25826', protocol => 'udp'}
         firewall_rule {"ntpd": destination_port => '123', protocol => 'udp'}
diff --git a/ovirt-server.spec.in b/ovirt-server.spec.in
index 6da7297..683f214 100644
--- a/ovirt-server.spec.in
+++ b/ovirt-server.spec.in
@@ -104,6 +104,7 @@ touch %{buildroot}%{_localstatedir}/log/%{name}/db-omatic.log
 %{__install} -Dp -m0755 %{pbuild}/conf/ovirt-mongrel-rails.sysconf %{buildroot}%{_sysconfdir}/sysconfig/ovirt-mongrel-rails
 %{__install} -Dp -m0755 %{pbuild}/conf/ovirt-rails.sysconf %{buildroot}%{_sysconfdir}/sysconfig/ovirt-rails
 %{__install} -Dp -m0755 %{pbuild}/conf/ovirt-taskomatic %{buildroot}%{_initrddir}
+%{__install} -Dp -m0755 %{pbuild}/conf/ovirt-vnc-proxy %{buildroot}%{_initrddir}
 
 # copy over all of the src directory...
 %{__cp} -a %{pbuild}/src/* %{buildroot}%{app_root}
@@ -179,6 +180,7 @@ fi
 %daemon_chkconfig_post -d ovirt-host-collect
 %daemon_chkconfig_post -d ovirt-mongrel-rails
 %daemon_chkconfig_post -d ovirt-taskomatic
+%daemon_chkconfig_post -d ovirt-vnc-proxy
 
 %preun
 if [ "$1" = 0 ] ; then
@@ -187,11 +189,13 @@ if [ "$1" = 0 ] ; then
   /sbin/service ovirt-host-collect stop > /dev/null 2>&1
   /sbin/service ovirt-mongrel-rails stop > /dev/null 2>&1
   /sbin/service ovirt-taskomatic stop > /dev/null 2>&1
+  /sbin/service ovirt-vnc-proxy stop > /dev/null 2>&1
   /sbin/chkconfig --del ovirt-host-browser
   /sbin/chkconfig --del ovirt-db-omatic
   /sbin/chkconfig --del ovirt-host-collect
   /sbin/chkconfig --del ovirt-mongrel-rails
   /sbin/chkconfig --del ovirt-taskomatic
+  /sbin/chkconfig --del ovirt-vnc-proxy
 fi
 
 %files
@@ -204,6 +208,7 @@ fi
 %{_initrddir}/ovirt-host-collect
 %{_initrddir}/ovirt-mongrel-rails
 %{_initrddir}/ovirt-taskomatic
+%{_initrddir}/ovirt-vnc-proxy
 %{_sysconfdir}/cron.d/%{name}
 %config(noreplace) %{_sysconfdir}/sysconfig/ovirt-mongrel-rails
 %config(noreplace) %{_sysconfdir}/sysconfig/ovirt-rails
diff --git a/src/vnc-proxy/vnc-proxy.rb b/src/vnc-proxy/vnc-proxy.rb
new file mode 100644
index 0000000..b20bb1f
--- /dev/null
+++ b/src/vnc-proxy/vnc-proxy.rb
@@ -0,0 +1,94 @@
+#!/usr/bin/ruby
+#
+# vnc-proxy.rb
+# ovirt vnc proxy server, relays ovirt encoded
+#   vnc requests to correct node
+# Copyright (C) 2008 Red Hat, Inc.
+# Written by Mohammed Morsi <mmorsi at redhat.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA  02110-1301, USA.  A copy of the GNU General Public License is
+# also available at http://www.gnu.org/copyleft/gpl.html.
+
+$: << File.join(File.dirname(__FILE__), "../dutils")
+
+require 'dutils'
+require 'daemons'
+include Daemonize
+
+###########
+OVIRT_SERVER_PORT = 5500
+VM_NAME_MAX_LEN   = 250
+VNC_DATA_MAX_LEN = 800000
+
+###########
+
+$debug = true
+
+def DEBUG(msg)
+   puts msg if $debug
+end
+
+$verbose = true
+def VERBOSE(msg)
+   puts msg if $verbose
+end
+
+###########
+
+# TODO catch errors
+
+daemonize
+
+server = TCPServer.open(OVIRT_SERVER_PORT)
+
+while(true) do
+  Thread.start(server.accept) do |client|
+    DEBUG "client accepted"
+
+    # first msg will be the vm description
+    vm_description = client.recv(VM_NAME_MAX_LEN).to_s
+    DEBUG "vm received: " + vm_description + ";"
+
+    # lookup vm
+    vm = Vm.find(:first, :conditions => [ "description = ?", vm_description ])
+    unless vm.nil? || vm.host.nil? || vm.state != "running"
+      # connect to node
+      DEBUG "connecting to node " + vm.host.hostname + ":" + vm.vnc_port.to_s
+      node_socket = TCPSocket.open(vm.host.hostname, vm.vnc_port)
+
+      # begin new thread to process server->client messages
+      Thread.start do
+        DEBUG "listening for server->client data"
+        while(true)do
+          node_data = node_socket.recv VNC_DATA_MAX_LEN
+          client.write node_data
+          VERBOSE "server -> client data " + node_data.size.to_s
+        end
+      end
+
+      # process client -> server messages
+      DEBUG "listening for client->server data"
+      while(true) do
+        client_data = client.recv VNC_DATA_MAX_LEN
+        node_socket.write client_data
+        VERBOSE "client -> server data " + client_data.size.to_s
+      end
+
+      node_socket.close
+    end
+
+    client.close
+ end
+end
-- 
1.6.0.6




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