diff --git a/compass/deployment/deploy_manager.py b/compass/deployment/deploy_manager.py
index 8d52ff7d..37a2ecf9 100644
--- a/compass/deployment/deploy_manager.py
+++ b/compass/deployment/deploy_manager.py
@@ -35,12 +35,11 @@ class DeployManager(object):
 
         # Get OS installer
         os_installer_name = adapter_info[const.OS_INSTALLER][const.NAME]
-        os_hosts_info = self._get_hosts_for_os_installation(hosts_info)
         self.os_installer = DeployManager._get_installer(OSInstaller,
                                                          os_installer_name,
                                                          adapter_info,
                                                          cluster_info,
-                                                         os_hosts_info)
+                                                         hosts_info)
 
         # Get package installer
         pk_info = adapter_info.setdefault(const.PK_INSTALLER, {})
@@ -148,18 +147,6 @@ class DeployManager(object):
         if self.pk_installer:
             self.pk_installer.delete_hosts(delete_cluster=delete_cluster)
 
-    def _get_hosts_for_os_installation(self, hosts_info):
-        """Get info of hosts which need to install/reinstall OS."""
-        hosts_list = {}
-        for host_id in hosts_info:
-            reinstall_os_flag = hosts_info[host_id][const.REINSTALL_OS_FLAG]
-            if not reinstall_os_flag:
-                continue
-
-            hosts_list[host_id] = hosts_info[host_id]
-
-        return hosts_list
-
 
 class PowerManager(object):
     """Manage host to power on, power off, and reset."""
diff --git a/compass/deployment/installers/config_manager.py b/compass/deployment/installers/config_manager.py
index 8d48bad6..11b6997f 100644
--- a/compass/deployment/installers/config_manager.py
+++ b/compass/deployment/installers/config_manager.py
@@ -59,6 +59,15 @@ class BaseConfigManager(object):
 
         return self.hosts_info.keys()
 
+    def get_hosts_id_list_for_os_installation(self):
+        """Get info of hosts which need to install/reinstall OS."""
+        result = []
+        all_host_ids = self.get_host_id_list()
+        for host_id in all_host_ids:
+            if self.hosts_info[host_id][const.REINSTALL_OS_FLAG]:
+                result.append(host_id)
+        return result
+
     def get_cluster_flavor_info(self):
         return self.__get_cluster_item(const.FLAVOR, {})
 
diff --git a/compass/deployment/installers/os_installers/cobbler/cobbler.py b/compass/deployment/installers/os_installers/cobbler/cobbler.py
index 7406b813..e31734d6 100644
--- a/compass/deployment/installers/os_installers/cobbler/cobbler.py
+++ b/compass/deployment/installers/os_installers/cobbler/cobbler.py
@@ -117,7 +117,7 @@ class CobblerInstaller(OSInstaller):
                }
            }
         """
-        host_ids = self.config_manager.get_host_id_list()
+        host_ids = self.config_manager.get_hosts_id_list_for_os_installation()
         if not host_ids:
             # No hosts need to install OS
             logging.info("Cobbler: No host needs to install OS.")
diff --git a/compass/tests/deployment/test_deploy_manager.py b/compass/tests/deployment/test_deploy_manager.py
index 325e6a36..eda00539 100644
--- a/compass/tests/deployment/test_deploy_manager.py
+++ b/compass/tests/deployment/test_deploy_manager.py
@@ -54,9 +54,3 @@ class TestDeployManager(unittest2.TestCase):
 
         test_manager = DeployManager(adapter_info, cluster_info, hosts_info)
         self.assertIsNotNone(test_manager)
-
-        # Test hepler function _get_hosts_for_os_installation return correct
-        # number of hosts config for os deployment. In config_data, two out of
-        # three hosts need to install OS.
-        hosts_list = test_manager._get_hosts_for_os_installation(hosts_info)
-        self.assertEqual(2, len(hosts_list))
diff --git a/conf/flavor/openstack_chef.conf b/conf/flavor/openstack_chef.conf
index 02f525cb..f98887b7 100644
--- a/conf/flavor/openstack_chef.conf
+++ b/conf/flavor/openstack_chef.conf
@@ -22,4 +22,14 @@ FLAVORS = [{
         'os-network-server', 'os-block-storage-controller', 'os-block-storage-volume',
         'os-image', 'os-dashboard'
     ]
+}, {
+   'flavor': 'HA-multinodes',
+    'display_name': 'Multi-node Cluster with HA',
+    'template': 'ha_multinodes.tmpl',
+    'roles': [
+        'os-ops-database', 'os-identity', 'os-ops-messaging', 'os-ha',
+        'os-compute-controller', 'os-compute-worker', 'os-network-worker',
+        'os-network-server', 'os-block-storage-controller', 'os-block-storage-volume',
+        'os-image', 'os-dashboard'
+    ]
 }]
diff --git a/conf/package_metadata/openstack.conf b/conf/package_metadata/openstack.conf
index e357e983..639e4914 100644
--- a/conf/package_metadata/openstack.conf
+++ b/conf/package_metadata/openstack.conf
@@ -89,5 +89,16 @@ METADATA = {
                 }
             }
         }
+    },
+    'ha_proxy': {
+        '_self': {
+        },
+        'vip': {
+           '_self': {
+               'is_required': True,
+               'field': 'general',
+               'mapping_to': 'ha_vip'
+           }
+        }
     }
 }
diff --git a/conf/role/openstack_chef.conf b/conf/role/openstack_chef.conf
index b8da4f25..0c3dc837 100644
--- a/conf/role/openstack_chef.conf
+++ b/conf/role/openstack_chef.conf
@@ -57,7 +57,7 @@ ROLES = [{
     'display_name': 'dashboard node',
     'description': 'dashboard node'
 }, {
-    'role': 'ha-proxy',
+    'role': 'os-ha',
     'display_name': 'ha proxy node',
     'description': 'ha proxy node',
     'optional': True
diff --git a/conf/templates/chef_installer/openstack_icehouse/environments/ha_multinodes.tmpl b/conf/templates/chef_installer/openstack_icehouse/environments/ha_multinodes.tmpl
new file mode 100644
index 00000000..12b27762
--- /dev/null
+++ b/conf/templates/chef_installer/openstack_icehouse/environments/ha_multinodes.tmpl
@@ -0,0 +1,384 @@
+#set ha_vip = $getVar('ha_vip', None)
+#if not ha_vip
+#raise ValueError("ha_vip hasnot been set yet!")
+#end if
+
+#set controller_role = $get_role('os_compute_controller', $getVar('os_controller', None))
+
+## Contoller node management IP/interface
+#set controller_ip = $controller_role.management.ip
+#set controller_nic = $controller_role.management.interface
+
+## Compute node management IP/interface
+#set compute_role = $getVar('os_compute_worker', None)
+#set compute_nic = $compute_role.management.interface
+
+## Network server/worker node IP/interface
+#set network = $getVar('os_network', None)
+#set network_server_role = $get_role('os_network_server', [$network, $controller_role])
+#set network_worker_role = $get_role('os_network_worker', [$network, $compute_role])
+
+#set network_server_ip = $network_server_role.management.ip
+#set network_server_nic = $network_server_role.management.interface
+
+## Network worker node management IP/interface
+#set network_worker_ip = $network_worker_role.management.ip
+#set network_worker_nic = $network_worker_role.management.interface
+#set network_worker_tenant_nic = $network_worker_role.tenant.interface
+#set network_worker_public_nic = $network_worker_role.external.interface
+
+## Database node management IP
+#set db_role = $get_role('os_ops_database', $controller_role)
+#set db_ip = $db_role.management.ip
+#set db_nic = $db_role.management.interface
+
+## Message queue node management IP/interface
+#set msg_queue_role = $get_role('os_ops_messaging', $controller_role)
+#set msg_queue_ip = $msg_queue_role.management.ip
+
+## Identity (keystone) node IP/interface
+#set identity_role = $get_role('os_identity', $controller_role)
+#set identity_ip = $identity_role.management.ip
+#set identity_nic = $identity_role.management.interface
+
+## Glance node management IP/interface
+#set glance_role = $get_role('os_image', $controller_role)
+#set glance_ip = $glance_role.management.ip
+#set glance_nic = $glance_role.management.interface
+
+## Cinder node management IP/interface
+#set cinder_role = $get_role('os_block_storage_controller', $controller_role)
+#set cinder_controller_ip = $cinder_role.management.ip
+#set cinder_controller_nic = $cinder_role.management.interface
+
+## Dashboard node management IP/interface
+#set dash_role = $get_role('os_dashboard', $controller_role)
+#set dash_ip = $dash_role.management.ip
+
+#def get_role($role_name, $default_roles=None)
+    #set target_role = $getVar($role_name, None)
+    #if $target_role is None and $default_roles is not None
+        #if isinstance($default_roles, list)
+            #for $role in $default_roles
+                #if $role is not None
+                    #set target_role = $role
+                    #break
+                #end if
+            #end for
+        #else
+            #set target_role = $default_roles
+        #end if
+    #end if
+    #return $target_role
+#end def
+{
+  "name": "testing",
+  "description": "Environment used in testing the upstream cookbooks and reference Chef repository",
+  "cookbook_versions": {
+  },
+  "json_class": "Chef::Environment",
+  "chef_type": "environment",
+  "default_attributes": {
+    "local_repo": "",
+    "mysql": {
+      "server_root_password": "test",
+      "server_debian_password": "root",
+      "server_repl_password": "root",
+      "allow_remote_root": true,
+      "root_network_acl": "%"
+    },
+    "collectd": {
+      "server": {
+        "host": "metrics",
+        "port": "2003",
+        "protocol": "udp"
+      }
+    },
+    "haproxy": {
+      "incoming_address": "$ha_vip"
+    },
+    "keepalived": {
+      "vip": {
+        "ipaddress": "$ha_vip",
+        "interface": "eth0"
+      }
+    },
+    "openstack": {
+      "auth": {
+        "validate_certs": false
+      },
+      "block-storage": {
+        "syslog": {
+          "use": false
+        },
+        "api": {
+          "ratelimit": "False"
+        },
+        "debug": true
+      },
+      "dashboard": {
+        "use_ssl": "false"
+      },
+      "compute": {
+        "syslog": {
+          "use": false
+        },
+        "libvirt": {
+          "bind_interface": "$compute_nic"
+        },
+        "novnc_proxy": {
+          "bind_interface": "$compute_nic"
+        },
+        "xvpvnc_proxy": {
+          "bind_interface": "$compute_nic"
+        },
+        "ratelimit": {
+          "api": {
+            "enabled": false
+          },
+          "volume": {
+            "enabled": false
+          }
+        },
+        "network": {
+          "service_type": "neutron"
+        }
+      },
+      "network": {
+        "verbose": "True",
+        "debug": "True",
+        "service_plugins": [
+          "router"
+        ],
+        "ml2": {
+          "type_drivers": "gre",
+          "tenant_network_types": "gre",
+          "tunnel_id_ranges": "1:1000",
+          "enable_security_group": "True"
+        },
+        "openvswitch": {
+          "tenant_network_type": "gre",
+          "enable_tunneling": "True",
+          "tunnel_id_ranges": "1:1000",
+          "bind_interface": "$network_worker_tenant_nic"
+        },
+        "l3": {
+            "external_network_bridge_interface": "$network_worker_public_nic"
+        }
+      },
+      "db": {
+        "bind_interface": "$db_nic",
+        "compute": {
+          "host": "$db_ip"
+        },
+        "identity": {
+          "host": "$db_ip"
+        },
+        "image": {
+          "host": "$db_ip"
+        },
+        "network": {
+          "host": "$db_ip"
+        },
+        "volume": {
+          "host": "$db_ip"
+        },
+        "dashboard": {
+          "host": "$db_ip"
+        },
+        "telemetry": {
+          "host": "$db_ip"
+        },
+        "orchestration": {
+          "host": "$db_ip"
+        }
+      },
+      "developer_mode": true,
+      "endpoints": {
+        "db": {
+          "host": "$db_ip"
+        },
+        "mq": {
+          "host": "$msg_queue_ip"
+        },
+        "compute-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8774",
+          "path": "/v2/%(tenant_id)s"
+        },
+        "compute-api-bind": {
+          "bind_interface": "$compute_nic"
+        },
+        "compute-ec2-admin": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8773",
+          "path": "/services/Admin"
+        },
+        "compute-ec2-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8773",
+          "path": "/services/Cloud"
+        },
+        "compute-novnc": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "6080",
+          "path": "/vnc_auto.html"
+        },
+        "compute-novnc-bind": {
+          "bind_interface": "$controller_nic"
+        },
+        "compute-vnc-bind": {
+          "bind_interface" : "$compute_nic"
+        },
+        "vnc_bind": {
+          "bind_interface": "$controller_nic"
+        },
+        "image-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "9292",
+          "path": "/v2"
+        },
+        "image-api-bind": {
+          "bind_interface": "$glance_nic"
+        },
+        "image-registry": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "9191",
+          "path": "/v2"
+        },
+        "image-registry-bind": {
+          "bind_interface": "$glance_nic"
+        },
+        "identity-bind": {
+          "bind_interface": "$identity_nic"
+        },
+        "identity-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "5000",
+          "path": "/v2.0"
+        },
+        "identity-admin": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "35357",
+          "path": "/v2.0"
+        },
+        "block-storage-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8776",
+          "path": "/v1/%(tenant_id)s"
+        },
+        "block-storage-api-bind": {
+          "bind_interface": "$cinder_controller_nic"
+        },
+        "telemetry-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8777",
+          "path": "/v1"
+        },
+        "network-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "9696",
+          "path": ""
+        },
+        "network-api-bind": {
+          "bind_interface": "$network_server_nic"
+        },
+        "orchestration-api": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8004",
+          "path": "/v1/%(tenant_id)s"
+        },
+        "orchestration-api-cfn": {
+          "host": "$ha_vip",
+          "scheme": "http",
+          "port": "8000",
+          "path": "/v1"
+        }
+      },
+      "identity": {
+        "admin_user": "admin",
+        "bind_interface": "$identity_nic",
+        "catalog": {
+          "backend": "sql"
+        },
+        "debug": true,
+        "roles": [
+          "admin",
+          "member"
+        ],
+        "syslog": {
+          "use": false
+        },
+        "tenants": [
+          "admin",
+          "service",
+          "demo"
+        ],
+        "token": {
+          "backend": "sql"
+        },
+        "users": {
+          "admin": {
+            "password": "admin",
+            "default_tenant": "admin",
+            "roles": {
+              "admin": [
+                "admin"
+              ]
+            }
+          },
+          "demo": {
+            "password": "demo",
+            "default_tenant": "demo",
+            "roles": {
+              "member": [
+                "demo"
+              ]
+            }
+          }
+        }
+      },
+      "image": {
+        "api": {
+          "bind_interface": "$glance_nic"
+        },
+        "debug": true,
+        "registry": {
+          "bind_interface": "$glance_nic"
+        },
+        "syslog": {
+          "use": false
+        },
+        "upload_image": {
+          "cirros": "http://download.cirros-cloud.net/0.3.2/cirros-0.3.2-x86_64-disk.img"
+        },
+        "upload_images": [
+          "cirros"
+        ]
+      },
+      "memcached": {
+        "bind_interface": "$identity_nic"
+      },
+      "mq": {
+        "user": "guest",
+        "password": "test",
+        "vhost": "/nova",
+        "network": {
+          "service_type": "rabbitmq"
+        }
+      }
+    }
+  }
+}