Merge compass-tasks-osa and compass-tasks-k8s

JIRA: COMPASS-568

rename compass-tasks to compass-tasks-base.
add both osa and k8s support in compass-tasks

Change-Id: I438f5b17e509d4cb751ced0ffe640ec70899882f
Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

13 files changed, 2119 insertions, 0 deletions

diff --git a/compass-tasks-base/deployment/__init__.py b/compass-tasks-base/deployment/__init__.py
new file mode 100644
index 0000000..cbd36e0
--- /dev/null
+++ b/compass-tasks-base/deployment/__init__.py
@@ -0,0 +1,15 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "Grace Yu (grace.yu@huawei.com)"
diff --git a/compass-tasks-base/deployment/deploy_manager.py b/compass-tasks-base/deployment/deploy_manager.py
new file mode 100644
index 0000000..baf7cd6
--- /dev/null
+++ b/compass-tasks-base/deployment/deploy_manager.py
@@ -0,0 +1,237 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "Grace Yu (grace.yu@huawei.com)"
+
+"""Module to get configs from provider and isntallers and update
+   them to provider and installers.
+"""
+from compass.deployment.installers.installer import OSInstaller
+from compass.deployment.installers.installer import PKInstaller
+from compass.deployment.utils import constants as const
+from compass.utils import util
+
+
+import logging
+
+
+class DeployManager(object):
+    """Deploy manager module."""
+    def __init__(self, adapter_info, cluster_info, hosts_info):
+        """Init deploy manager."""
+        self.os_installer = None
+        self.pk_installer = None
+
+        # Get OS installer
+        os_installer_name = adapter_info[const.OS_INSTALLER][const.NAME]
+        self.os_installer = DeployManager._get_installer(OSInstaller,
+                                                         os_installer_name,
+                                                         adapter_info,
+                                                         cluster_info,
+                                                         hosts_info)
+
+        # Get package installer
+        pk_info = adapter_info.setdefault(const.PK_INSTALLER, {})
+        if pk_info:
+            pk_installer_name = pk_info[const.NAME]
+            self.pk_installer = DeployManager._get_installer(PKInstaller,
+                                                             pk_installer_name,
+                                                             adapter_info,
+                                                             cluster_info,
+                                                             hosts_info)
+
+    @staticmethod
+    def _get_installer(installer_type, name, adapter_info, cluster_info,
+                       hosts_info):
+        """Get installer instance."""
+        callback = getattr(installer_type, 'get_installer')
+        installer = callback(name, adapter_info, cluster_info, hosts_info)
+
+        return installer
+
+    def deploy(self):
+        """Deploy the cluster."""
+        deployed_config = self.deploy_os()
+        package_deployed_config = self.deploy_target_system()
+
+        util.merge_dict(deployed_config, package_deployed_config)
+
+        return deployed_config
+
+    def check_cluster_health(self, callback_url):
+        logging.info("DeployManager check_cluster_health...........")
+        self.pk_installer.check_cluster_health(callback_url)
+
+    def clean_progress(self):
+        """Clean previous installation log and progress."""
+        self.clean_os_installtion_progress()
+        self.clean_package_installation_progress()
+
+    def clean_os_installtion_progress(self):
+        # OS installer cleans previous installing progress.
+        if self.os_installer:
+            self.os_installer.clean_progress()
+
+    def clean_package_installation_progress(self):
+        # Package installer cleans previous installing progress.
+        if self.pk_installer:
+            self.pk_installer.clean_progress()
+
+    def prepare_for_deploy(self):
+        self.clean_progress()
+
+    def deploy_os(self):
+        """Deploy OS to hosts which need to in the cluster.
+
+        Return OS deployed config.
+        """
+        if not self.os_installer:
+            return {}
+
+        pk_installer_config = {}
+        if self.pk_installer:
+            # generate target system config which will be installed by OS
+            # installer right after OS installation is completed.
+            pk_installer_config = self.pk_installer.generate_installer_config()
+            logging.debug('[DeployManager]package installer config is %s',
+                          pk_installer_config)
+
+        # Send package installer config info to OS installer.
+        self.os_installer.set_package_installer_config(pk_installer_config)
+
+        # start to deploy OS
+        return self.os_installer.deploy()
+
+    def deploy_target_system(self):
+        """Deploy target system to all hosts in the cluster.
+
+        Return package deployed config.
+        """
+        if not self.pk_installer:
+            return {}
+
+        return self.pk_installer.deploy()
+
+    def redeploy_os(self):
+        """Redeploy OS for this cluster without changing configurations."""
+        if not self.os_installer:
+            logging.info("Redeploy_os: No OS installer found!")
+            return
+
+        self.os_installer.redeploy()
+        logging.info("Start to redeploy OS for cluster.")
+
+    def redeploy_target_system(self):
+        """Redeploy target system for the cluster without changing config."""
+        if not self.pk_installer:
+            logging.info("Redeploy_target_system: No installer found!")
+            return
+
+        self.pk_installer.deploy()
+        logging.info("Start to redeploy target system.")
+
+    def redeploy(self):
+        """Redeploy the cluster without changing configurations."""
+        self.redeploy_os()
+        self.redeploy_target_system()
+
+    def remove_hosts(self, package_only=False, delete_cluster=False):
+        """Remove hosts from both OS and/or package installlers server side."""
+        if self.os_installer and not package_only:
+            self.os_installer.delete_hosts()
+
+        if self.pk_installer:
+            self.pk_installer.delete_hosts(delete_cluster=delete_cluster)
+
+    def os_installed(self):
+        if self.os_installer:
+            self.os_installer.ready()
+        if self.pk_installer:
+            self.pk_installer.os_ready()
+
+    def cluster_os_installed(self):
+        if self.os_installer:
+            self.os_installer.cluster_ready()
+        if self.pk_installer:
+            self.pk_installer.cluster_os_ready()
+
+    def package_installed(self):
+        if self.pk_installer:
+            self.pk_installer.ready()
+
+    def cluster_installed(self):
+        if self.pk_installer:
+            self.pk_installer.cluster_ready()
+
+
+class Patcher(DeployManager):
+    """Patcher Module."""
+    def __init__(self, adapter_info, cluster_info, hosts_info, cluster_hosts):
+        self.pk_installer = None
+        self.cluster_info = cluster_info
+        registered_roles = cluster_info['flavor']['roles']
+
+        pk_info = adapter_info.setdefault(const.PK_INSTALLER, {})
+        if pk_info:
+            pk_installer_name = pk_info[const.NAME]
+            self.pk_installer = Patcher._get_installer(PKInstaller,
+                                                       pk_installer_name,
+                                                       adapter_info,
+                                                       cluster_info,
+                                                       hosts_info)
+
+        patched_role_mapping = {}
+        for role in registered_roles:
+            patched_role_mapping[role] = []
+        for host in cluster_hosts:
+            if len(host['patched_roles']) == 0:
+                continue
+            for role in host['patched_roles']:
+                patched_role_mapping[role['name']].append(host)
+        self.patched_role_mapping = patched_role_mapping
+
+    def patch(self):
+        patched_config = self.pk_installer.patch(self.patched_role_mapping)
+
+        return patched_config
+
+
+class PowerManager(object):
+    """Manage host to power on, power off, and reset."""
+
+    def __init__(self, adapter_info, cluster_info, hosts_info):
+        os_installer_name = adapter_info[const.OS_INSTALLER][const.NAME]
+        self.os_installer = DeployManager._get_installer(OSInstaller,
+                                                         os_installer_name,
+                                                         adapter_info,
+                                                         cluster_info,
+                                                         hosts_info)
+
+    def poweron(self):
+        if not self.os_installer:
+            logging.info("No OS installer found, cannot power on machine!")
+            return
+        self.os_installer.poweron()
+
+    def poweroff(self):
+        if not self.os_installer:
+            logging.info("No OS installer found, cannot power on machine!")
+            return
+        self.os_installer.poweroff()
+
+    def reset(self):
+        if not self.os_installer:
+            logging.info("No OS installer found, cannot power on machine!")
+            return
+        self.os_installer.reset()
diff --git a/compass-tasks-base/deployment/installers/__init__.py b/compass-tasks-base/deployment/installers/__init__.py
new file mode 100644
index 0000000..0296be5
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/__init__.py
@@ -0,0 +1,21 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "Grace Yu (grace.yu@huawei.com)"
+
+
+"""modules to read/write cluster/host config from installers.
+
+   .. moduleauthor:: Grace Yu <grace.yu@huawei.com>
+"""
diff --git a/compass-tasks-base/deployment/installers/config_manager.py b/compass-tasks-base/deployment/installers/config_manager.py
new file mode 100644
index 0000000..597c3a6
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/config_manager.py
@@ -0,0 +1,527 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "baigk baiguoku@huawei.com)"
+
+from collections import defaultdict
+from copy import deepcopy
+import json
+import logging
+import netaddr
+
+from compass.deployment.utils import constants as const
+
+ip_generator_map = {}
+
+
+def get_ip_addr(ip_ranges):
+    def _get_ip_addr():
+        for ip_range in ip_ranges:
+            for ip in netaddr.iter_iprange(*ip_range):
+                yield str(ip)
+
+    s = json.dumps(ip_ranges)
+    if s not in ip_generator_map:
+        ip_generator_map[s] = _get_ip_addr()
+        return ip_generator_map[s]
+    else:
+        return ip_generator_map[s]
+
+
+class AdapterInfo(object):
+    def __init__(self, adapter_info):
+        self.adapter_info = adapter_info
+        self.name = self.adapter_info.get(const.NAME)
+        self.dist_system_name = self.name
+        self.health_check_cmd = self.adapter_info.get(const.HEALTH_CHECK_CMD)
+
+        self.os_installer = self.adapter_info.setdefault(
+            const.OS_INSTALLER, {}
+        )
+        self.os_installer.setdefault(const.INSTALLER_SETTINGS, {})
+
+        self.package_installer = self.adapter_info.setdefault(
+            const.PK_INSTALLER, {}
+        )
+        self.package_installer.setdefault(const.INSTALLER_SETTINGS, {})
+
+        self.metadata = self.adapter_info.setdefault(const.METADATA, {})
+        self.os_metadata = self.metadata.setdefault(const.OS_CONFIG, {})
+        self.package_metadata = self.metadata.setdefault(const.PK_CONFIG, {})
+
+        self.flavors = dict([(f[const.FLAVOR_NAME], f)
+                            for f in self.adapter_info.get(const.FLAVOR, [])])
+
+    @property
+    def flavor_list(self):
+        return self.flavors.values()
+
+    def get_flavor(self, flavor_name):
+        return self.flavors.get(flavor_name)
+
+
+class ClusterInfo(object):
+    def __init__(self, cluster_info):
+        self.cluster_info = cluster_info
+        self.id = self.cluster_info.get(const.ID)
+        self.name = self.cluster_info.get(const.NAME)
+        self.os_version = self.cluster_info.get(const.OS_VERSION)
+        self.flavor = self.cluster_info.setdefault(
+            const.FLAVOR, {}
+        )
+        self.os_config = self.cluster_info.setdefault(
+            const.OS_CONFIG, {}
+        )
+        self.package_config = self.cluster_info.setdefault(
+            const.PK_CONFIG, {}
+        )
+        self.deployed_os_config = self.cluster_info.setdefault(
+            const.DEPLOYED_OS_CONFIG, {}
+        )
+        self.deployed_package_config = self.cluster_info.setdefault(
+            const.DEPLOYED_PK_CONFIG, {}
+        )
+        self.network_mapping = self.package_config.setdefault(
+            const.NETWORK_MAPPING, {}
+        )
+
+        os_config_general = self.os_config.setdefault(
+            const.OS_CONFIG_GENERAL, {}
+        )
+        self.domain = os_config_general.setdefault(const.DOMAIN, None)
+        self.hosts = []
+
+    def add_host(self, host):
+        self.hosts.append(host)
+
+    @property
+    def roles_mapping(self):
+        deploy_config = self.deployed_package_config
+        return deploy_config.setdefault(
+            const.ROLES_MAPPING, self._get_cluster_roles_mapping()
+        )
+
+    def _get_cluster_roles_mapping(self):
+        """The ouput format will be as below, for example:
+
+        {
+            "controller": [{
+                "hostname": "xxx",
+                "management": {
+                    "interface": "eth0",
+                    "ip": "192.168.1.10",
+                    "netmask": "255.255.255.0",
+                    "subnet": "192.168.1.0/24",
+                    "is_mgmt": True,
+                    "is_promiscuous": False
+                },
+                ...
+            }],
+                ...
+        }
+        """
+        mapping = defaultdict(list)
+        for host in self.hosts:
+            for role, value in host.roles_mapping.iteritems():
+                mapping[role].append(value)
+
+        return dict(mapping)
+
+    def _get_cluster_patched_roles_mapping(self):
+        mapping = defaultdict(list)
+        for host in self.hosts:
+            for role, value in host.patched_roles_mapping.iteritems():
+                mapping[role].append(value)
+
+        return dict(mapping)
+
+    @property
+    def base_info(self):
+        return {
+            const.ID: self.id,
+            const.NAME: self.name,
+            const.OS_VERSION: self.os_version
+        }
+
+
+class HostInfo(object):
+    def __init__(self, host_info, cluster_info):
+        self.host_info = host_info
+        self.cluster_info = cluster_info
+        self.id = self.host_info.get(const.ID)
+        self.name = self.host_info.get(const.NAME)
+        self.mac = self.host_info.get(const.MAC_ADDR)
+        self.hostname = self.host_info.get(const.HOSTNAME)
+        self.networks = self.host_info.setdefault(const.NETWORKS, {})
+        self.os_config = self.host_info.setdefault(const.OS_CONFIG, {})
+
+        self.package_config = self.host_info.setdefault(const.PK_CONFIG, {})
+        self.roles = self.host_info.setdefault(const.ROLES, [])
+        self.patched_roles = self.host_info.setdefault(const.PATCHED_ROLES, [])
+        self.ipmi = deepcopy(self.host_info.setdefault(const.IPMI, {}))
+        self.reinstall_os_flag = self.host_info.get(const.REINSTALL_OS_FLAG)
+        self.deployed_os_config = self.host_info.setdefault(
+            const.DEPLOYED_OS_CONFIG, {}
+        )
+        self.deployed_package_config = self.host_info.setdefault(
+            const.DEPLOYED_PK_CONFIG, {}
+        )
+
+        os_general_config = self.os_config.setdefault(
+            const.OS_CONFIG_GENERAL, {}
+        )
+        domain = os_general_config.setdefault(const.DOMAIN, None)
+        if domain is None:
+            self.domain = self.cluster_info.domain
+        else:
+            self.domain = domain
+
+        if const.DNS in host_info:
+            self.dns = host_info[const.DNS]
+        else:
+            self.dns = '.'.join((self.hostname, self.domain))
+
+        if const.NETWORK_MAPPING not in self.package_config:
+            self.network_mapping = self.cluster_info.network_mapping
+        else:
+            self.network_mapping = self.package_config[const.NETWORK_MAPPING]
+
+        if const.ROLES_MAPPING not in self.deployed_package_config:
+            self.roles_mapping = self._get_host_roles_mapping()
+            self.deployed_package_config[
+                const.ROLES_MAPPING
+            ] = self.roles_mapping
+        else:
+            self.roles_mapping = \
+                self.deployed_package_config[const.ROLES_MAPPING]
+
+        self.patched_roles_mapping = self._get_host_patched_roles_mapping()
+
+        self.cluster_info.add_host(self)
+
+    def valid_interface(self, interface):
+        if interface not in self.networks:
+            raise RuntimeError("interface %s is invalid" % interface)
+
+    def get_interface(self, interface):
+        self.valid_interface(interface)
+        return self.networks[interface]
+
+    def get_interface_ip(self, interface):
+        return self.get_interface(interface).get(const.IP_ADDR)
+
+    def get_interface_netmask(self, interface):
+        return self.get_interface(interface).get(const.NETMASK)
+
+    def get_interface_subnet(self, interface):
+        return self.get_interface(interface).get(const.SUBNET)
+
+    def is_interface_promiscuous(self, interface):
+        return self.get_interface(interface).get(const.PROMISCUOUS_FLAG)
+
+    def is_interface_mgmt(self, interface):
+        return self.get_interface(interface).get(const.MGMT_NIC_FLAG)
+
+    def _get_host_roles_mapping(self):
+        if not self.network_mapping:
+            return {}
+
+        net_info = {const.HOSTNAME: self.hostname}
+        for k, v in self.network_mapping.items():
+            try:
+                net_info[k] = self.networks[v[const.NIC]]
+                net_info[k][const.NIC] = v[const.NIC]
+            except Exception:
+                pass
+
+        mapping = {}
+        for role in self.roles:
+            role = role.replace("-", "_")
+            mapping[role] = net_info
+
+        return mapping
+
+    def _get_host_patched_roles_mapping(self):
+        if not self.network_mapping:
+            return {}
+
+        net_info = {const.HOSTNAME: self.hostname}
+        for k, v in self.network_mapping.items():
+            try:
+                net_info[k] = self.networks[v[const.NIC]]
+                net_info[k][const.NIC] = v[const.NIC]
+            except Exception:
+                pass
+
+        mapping = {}
+        for role in self.patched_roles:
+            role = role['name'].replace("-", "_")
+            mapping[role] = net_info
+
+        return mapping
+
+    @property
+    def baseinfo(self):
+        return {
+            const.REINSTALL_OS_FLAG: self.reinstall_os_flag,
+            const.MAC_ADDR: self.mac,
+            const.NAME: self.name,
+            const.HOSTNAME: self.hostname,
+            const.DNS: self.dns,
+            const.NETWORKS: deepcopy(self.networks)
+        }
+
+
+class BaseConfigManager(object):
+    def __init__(self, adapter_info={}, cluster_info={}, hosts_info={}):
+        assert(adapter_info and isinstance(adapter_info, dict))
+        assert(cluster_info and isinstance(cluster_info, dict))
+        assert(hosts_info and isinstance(hosts_info, dict))
+
+        self.adapter_info = AdapterInfo(adapter_info)
+        self.cluster_info = ClusterInfo(cluster_info)
+        self.hosts_info = dict([(k, HostInfo(v, self.cluster_info))
+                               for k, v in hosts_info.iteritems()])
+
+    def get_adapter_name(self):
+        return self.adapter_info.name
+
+    def get_dist_system_name(self):
+        return self.adapter_info.dist_system_name
+
+    def get_adapter_health_check_cmd(self):
+        return self.adapter_info.health_check_cmd
+
+    def get_os_installer_settings(self):
+        return self.adapter_info.os_installer[const.INSTALLER_SETTINGS]
+
+    def get_pk_installer_settings(self):
+        return self.adapter_info.package_installer[const.INSTALLER_SETTINGS]
+
+    def get_os_config_metadata(self):
+        return self.adapter_info.metadata[const.OS_CONFIG]
+
+    def get_pk_config_meatadata(self):
+        return self.adapter_info.metadata[const.PK_CONFIG]
+
+    def get_adapter_all_flavors(self):
+        return self.adapter_info.flavor_list
+
+    def get_adapter_flavor(self, flavor_name):
+        return self.adapter_info.get_flavor(flavor_name)
+
+    def get_cluster_id(self):
+        return self.cluster_info.id
+
+    def get_clustername(self):
+        return self.cluster_info.name
+
+    def get_os_version(self):
+        return self.cluster_info.os_version
+
+    def get_cluster_os_config(self):
+        return self.cluster_info.os_config
+
+    def get_cluster_baseinfo(self):
+        return self.cluster_info.base_info
+
+    def get_cluster_flavor_name(self):
+        return self.cluster_info.flavor.get(const.FLAVOR_NAME)
+
+    def get_cluster_flavor_roles(self):
+        return self.cluster_info.flavor.get(const.ROLES, [])
+
+    def get_cluster_flavor_template(self):
+        return self.cluster_info.flavor.get(const.TMPL)
+
+    def get_cluster_package_config(self):
+        return self.cluster_info.package_config
+
+    def get_cluster_network_mapping(self):
+        mapping = self.cluster_info.network_mapping
+        logging.info("Network mapping in the config is '%s'!", mapping)
+        return mapping
+
+    def get_cluster_deployed_os_config(self):
+        return self.cluster_info.deployed_os_config
+
+    def get_cluster_deployed_package_config(self):
+        return self.cluster_info.deployed_package_config
+
+    def get_cluster_roles_mapping(self):
+        return self.cluster_info.roles_mapping
+
+    def get_cluster_patched_roles_mapping(self):
+        return self.cluster_info._get_cluster_patched_roles_mapping()
+
+    def validate_host(self, host_id):
+        if host_id not in self.hosts_info:
+            raise RuntimeError("host_id %s is invalid" % host_id)
+
+    def get_host_id_list(self):
+        return self.hosts_info.keys()
+
+    def get_hosts_id_list_for_os_installation(self):
+        """Get info of hosts which need to install/reinstall OS."""
+        return [
+            id for id, info in self.hosts_info.items()
+            if info.reinstall_os_flag
+        ]
+
+    def get_server_credentials(self):
+        cluster_os_config = self.get_cluster_os_config()
+        if not cluster_os_config:
+            logging.info("cluster os_config is None!")
+            return ()
+
+        username = cluster_os_config[const.SERVER_CREDS][const.USERNAME]
+        password = cluster_os_config[const.SERVER_CREDS][const.PASSWORD]
+        return (username, password)
+
+    def _get_host_info(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id]
+
+    def get_host_baseinfo(self, host_id):
+        self.validate_host(host_id)
+        host_info = self.hosts_info[host_id]
+        return host_info.baseinfo
+
+    def get_host_fullname(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].name
+
+    def get_host_dns(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].dns
+
+    def get_host_mac_address(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].mac
+
+    def get_hostname(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].hostname
+
+    def get_host_networks(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].networks
+
+    def get_host_interfaces(self, host_id):
+        # get interface names
+        return self.get_host_networks(host_id).keys()
+
+    def get_host_interface_ip(self, host_id, interface):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].get_interface_ip(interface)
+
+    def get_host_interface_netmask(self, host_id, interface):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].get_interface_netmask(interface)
+
+    def get_host_interface_subnet(self, host_id, interface):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].get_interface_subnet(interface)
+
+    def is_interface_promiscuous(self, host_id, interface):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].is_interface_promiscuous(interface)
+
+    def is_interface_mgmt(self, host_id, interface):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].is_interface_mgmt(interface)
+
+    def get_host_os_config(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].os_config
+
+    def get_host_domain(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].domain
+
+    def get_host_network_mapping(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].network_mapping
+
+    def get_host_package_config(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].package_config
+
+    def get_host_deployed_os_config(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].deployed_os_config
+
+    def get_host_deployed_package_config(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].deployed_package_config
+
+    def get_host_roles(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].roles
+
+    def get_all_hosts_roles(self, hosts_id_list=None):
+        roles = []
+        for host_id, host_info in self.hosts_info.iteritems():
+            roles.extend(host_info.roles)
+
+        return list(set(roles))
+
+    def get_hosts_ip_settings(self, ip_settings, sys_intf_mappings):
+        logging.info(
+            "get_hosts_ip_settings:ip_settings=%s, sys_intf_mappings=%s" %
+            (ip_settings, sys_intf_mappings)
+        )
+
+        intf_alias = {}
+        for m in sys_intf_mappings:
+            if "vlan_tag" in m:
+                intf_alias[m["name"]] = m["name"]
+            else:
+                intf_alias[m["name"]] = m["interface"]
+
+        mappings = {}
+        hosts_id_list = self.get_host_id_list()
+        for host_id in hosts_id_list:
+            hostname = self.get_hostname(host_id)
+            mappings[hostname] = []
+            for ip_info in ip_settings:
+                logging.info("ip_info=%s" % ip_info)
+                new_ip_info = deepcopy(ip_info)
+                del new_ip_info["ip_ranges"]
+
+                ip_ranges = ip_info["ip_ranges"]
+                new_ip_info["netmask"] = netaddr.IPNetwork(
+                    ip_info["cidr"]
+                ).netmask.bin.count("1")
+                new_ip_info["ip"] = get_ip_addr(ip_ranges).next()
+                new_ip_info["alias"] = intf_alias[ip_info["name"]]
+                mappings[hostname].append(new_ip_info)
+
+        return {"ip_settings": mappings}
+
+    def get_host_roles_mapping(self, host_id):
+        self.validate_host(host_id)
+        return self.hosts_info[host_id].roles_mapping
+
+    def get_host_ipmi_info(self, host_id):
+        self.validate_host(host_id)
+        if self.hosts_info[host_id].ipmi:
+            return (
+                self.hosts_info[host_id].ipmi[const.IP_ADDR],
+                self.hosts_info[host_id].ipmi
+                [const.IPMI_CREDS][const.USERNAME],
+                self.hosts_info[host_id].ipmi
+                [const.IPMI_CREDS][const.USERNAME])
+        else:
+            return (None, None, None)
diff --git a/compass-tasks-base/deployment/installers/installer.py b/compass-tasks-base/deployment/installers/installer.py
new file mode 100644
index 0000000..cfeb9e8
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/installer.py
@@ -0,0 +1,291 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "Grace Yu (grace.yu@huawei.com)"
+
+
+"""Module to provider installer interface.
+"""
+from Cheetah.Template import Template
+from copy import deepcopy
+import imp
+import logging
+import os
+import simplejson as json
+
+from compass.deployment.installers.config_manager import BaseConfigManager
+from compass.utils import setting_wrapper as compass_setting
+from compass.utils import util
+
+
+CURRENT_DIR = os.path.dirname(os.path.realpath(__file__))
+
+
+class BaseInstaller(object):
+    """Interface for installer."""
+    NAME = 'installer'
+
+    def __repr__(self):
+        return '%r[%r]' % (self.__class__.__name__, self.NAME)
+
+    def deploy(self, **kwargs):
+        """virtual method to start installing process."""
+        raise NotImplementedError
+
+    def clean_progress(self, **kwargs):
+        raise NotImplementedError
+
+    def delete_hosts(self, **kwargs):
+        """Delete hosts from installer server."""
+        raise NotImplementedError
+
+    def redeploy(self, **kwargs):
+        raise NotImplementedError
+
+    def ready(self, **kwargs):
+        pass
+
+    def cluster_ready(self, **kwargs):
+        pass
+
+    def get_tmpl_vars_from_metadata(self, metadata, config):
+        """Get variables dictionary for rendering templates from metadata.
+
+        :param dict metadata: The metadata dictionary.
+        :param dict config: The
+        """
+        template_vars = {}
+        self._get_tmpl_vars_helper(metadata, config, template_vars)
+
+        return template_vars
+
+    def _get_key_mapping(self, metadata, key, is_regular_key):
+        """Get the keyword which the input key maps to.
+
+        This keyword will be added to dictionary used to render templates.
+
+        If the key in metadata has a mapping to another keyword which is
+        used for templates, then return this keyword. If the key is started
+        with '$', which is a variable in metadata, return the key itself as
+        the mapping keyword. If the key has no mapping, return None.
+
+        :param dict metadata: metadata/submetadata dictionary.
+        :param str key: The keyword defined in metadata.
+        :param bool is_regular_key: False when the key defined in metadata
+                                    is a variable(starting with '$').
+        """
+        mapping_to = key
+        if is_regular_key:
+            try:
+                mapping_to = metadata['_self']['mapping_to']
+            except Exception:
+                mapping_to = None
+
+        return mapping_to
+
+    def _get_submeta_by_key(self, metadata, key):
+        """Get submetadata dictionary.
+
+        Based on current metadata key. And
+        determines the input key is a regular string keyword or a variable
+        keyword defined in metadata, which starts with '$'.
+
+        :param dict metadata: The metadata dictionary.
+        :param str key: The keyword defined in the metadata.
+        """
+        if key in metadata:
+            return (True, metadata[key])
+
+        temp = deepcopy(metadata)
+        if '_self' in temp:
+            del temp['_self']
+        meta_key = temp.keys()[0]
+        if meta_key.startswith("$"):
+            return (False, metadata[meta_key])
+
+        raise KeyError("'%s' is invalid in metadata '%s'!" % (key, metadata))
+
+    def _get_tmpl_vars_helper(self, metadata, config, output):
+        for key, config_value in sorted(config.iteritems()):
+            is_regular_key, sub_meta = self._get_submeta_by_key(metadata, key)
+            mapping_to = self._get_key_mapping(sub_meta, key, is_regular_key)
+
+            if isinstance(config_value, dict):
+                if mapping_to:
+                    new_output = output[mapping_to] = {}
+                else:
+                    new_output = output
+
+                self._get_tmpl_vars_helper(sub_meta, config_value, new_output)
+
+            elif mapping_to:
+                output[mapping_to] = config_value
+
+    def get_config_from_template(self, tmpl_path, vars_dict):
+        logging.debug("template path is %s", tmpl_path)
+        logging.debug("vars_dict is %s", vars_dict)
+
+        if not os.path.exists(tmpl_path) or not vars_dict:
+            logging.info("Template dir or vars_dict is None!")
+            return {}
+
+        searchList = []
+        copy_vars_dict = deepcopy(vars_dict)
+        for key, value in vars_dict.iteritems():
+            if isinstance(value, dict):
+                temp = copy_vars_dict[key]
+                del copy_vars_dict[key]
+                searchList.append(temp)
+        searchList.append(copy_vars_dict)
+
+        # Load base template first if it exists
+        base_config = {}
+        base_tmpl_path = os.path.join(os.path.dirname(tmpl_path), 'base.tmpl')
+        if os.path.isfile(base_tmpl_path) and base_tmpl_path != tmpl_path:
+            base_tmpl = Template(file=base_tmpl_path, searchList=searchList)
+            base_config = json.loads(base_tmpl.respond(), encoding='utf-8')
+            base_config = json.loads(json.dumps(base_config), encoding='utf-8')
+
+        # Load specific template for current adapter
+        tmpl = Template(file=open(tmpl_path, "r"), searchList=searchList)
+        config = json.loads(tmpl.respond(), encoding='utf-8')
+        config = json.loads(json.dumps(config), encoding='utf-8')
+
+        # Merge the two outputs
+        config = util.merge_dict(base_config, config)
+
+        logging.debug("get_config_from_template resulting %s", config)
+        return config
+
+    @classmethod
+    def get_installer(cls, name, path, adapter_info, cluster_info, hosts_info):
+        try:
+            mod_file, path, descr = imp.find_module(name, [path])
+            if mod_file:
+                mod = imp.load_module(name, mod_file, path, descr)
+                config_manager = BaseConfigManager(adapter_info, cluster_info,
+                                                   hosts_info)
+                return getattr(mod, mod.NAME)(config_manager)
+
+        except ImportError as exc:
+            logging.error('No such module found: %s', name)
+            logging.exception(exc)
+
+        return None
+
+
+class OSInstaller(BaseInstaller):
+    """Interface for os installer."""
+    NAME = 'OSInstaller'
+    INSTALLER_BASE_DIR = os.path.join(CURRENT_DIR, 'os_installers')
+
+    def get_oses(self):
+        """virtual method to get supported oses.
+
+        :returns: list of str, each is the supported os version.
+        """
+        return []
+
+    @classmethod
+    def get_installer(cls, name, adapter_info, cluster_info, hosts_info):
+        if name is None:
+            logging.info("Installer name is None! No OS installer loaded!")
+            return None
+
+        path = os.path.join(cls.INSTALLER_BASE_DIR, name)
+        installer = super(OSInstaller, cls).get_installer(name, path,
+                                                          adapter_info,
+                                                          cluster_info,
+                                                          hosts_info)
+
+        if not isinstance(installer, OSInstaller):
+            logging.info("Installer '%s' is not an OS installer!" % name)
+            return None
+
+        return installer
+
+    def poweron(self, host_id):
+        pass
+
+    def poweroff(self, host_id):
+        pass
+
+    def reset(self, host_id):
+        pass
+
+
+class PKInstaller(BaseInstaller):
+    """Interface for package installer."""
+    NAME = 'PKInstaller'
+    INSTALLER_BASE_DIR = os.path.join(CURRENT_DIR, 'pk_installers')
+
+    def generate_installer_config(self):
+        raise NotImplementedError(
+            'generate_installer_config is not defined in %s',
+            self.__class__.__name__
+        )
+
+    def get_target_systems(self):
+        """virtual method to get available target_systems for each os.
+
+        :param oses: supported os versions.
+        :type oses: list of st
+
+        :returns: dict of os_version to target systems as list of str.
+        """
+        return {}
+
+    def get_roles(self, target_system):
+        """virtual method to get all roles of given target system.
+
+        :param target_system: target distributed system such as OpenStack.
+        :type target_system: str
+
+        :returns: dict of role to role description as str.
+        """
+        return {}
+
+    def os_ready(self, **kwargs):
+        pass
+
+    def cluster_os_ready(self, **kwargs):
+        pass
+
+    def serialize_config(self, config, destination):
+        with open(destination, "w") as f:
+            f.write(config)
+
+    @classmethod
+    def get_installer(cls, name, adapter_info, cluster_info, hosts_info):
+        if name is None:
+            logging.info("Install name is None. No package installer loaded!")
+            return None
+
+        path = os.path.join(cls.INSTALLER_BASE_DIR, name)
+        if not os.path.exists(path):
+            path = os.path.join(os.path.join(os.path.join(
+                compass_setting.PLUGINS_DIR, name), "implementation"), name)
+        if not os.path.exists(path):
+            logging.info("Installer '%s' does not exist!" % name)
+            return None
+        installer = super(PKInstaller, cls).get_installer(name, path,
+                                                          adapter_info,
+                                                          cluster_info,
+                                                          hosts_info)
+
+        if not isinstance(installer, PKInstaller):
+            logging.info("Installer '%s' is not a package installer!" % name)
+            return None
+
+        return installer
diff --git a/compass-tasks-base/deployment/installers/os_installers/__init__.py b/compass-tasks-base/deployment/installers/os_installers/__init__.py
new file mode 100644
index 0000000..5e42ae9
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/os_installers/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/compass-tasks-base/deployment/installers/os_installers/cobbler/__init__.py b/compass-tasks-base/deployment/installers/os_installers/cobbler/__init__.py
new file mode 100644
index 0000000..5e42ae9
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/os_installers/cobbler/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/compass-tasks-base/deployment/installers/os_installers/cobbler/cobbler.py b/compass-tasks-base/deployment/installers/os_installers/cobbler/cobbler.py
new file mode 100644
index 0000000..9c2a935
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/os_installers/cobbler/cobbler.py
@@ -0,0 +1,449 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""os installer cobbler plugin.
+"""
+import logging
+import os
+import shutil
+import xmlrpclib
+
+from compass.deployment.installers.installer import OSInstaller
+from compass.deployment.utils import constants as const
+from compass.utils import setting_wrapper as compass_setting
+from compass.utils import util
+from copy import deepcopy
+
+
+NAME = 'CobblerInstaller'
+
+
+class CobblerInstaller(OSInstaller):
+    """cobbler installer"""
+    CREDENTIALS = "credentials"
+    USERNAME = 'username'
+    PASSWORD = 'password'
+
+    INSTALLER_URL = "cobbler_url"
+    TMPL_DIR = 'tmpl_dir'
+    SYS_TMPL = 'system.tmpl'
+    SYS_TMPL_NAME = 'system.tmpl'
+    SYS_PROFILE_NAME = 'profile.tmpl'
+    PROFILE = 'profile'
+
+    POWER_TYPE = 'power_type'
+    POWER_ADDR = 'power_address'
+    POWER_USER = 'power_user'
+    POWER_PASS = 'power_pass'
+
+    def __init__(self, config_manager):
+        super(CobblerInstaller, self).__init__()
+
+        self.config_manager = config_manager
+        installer_settings = self.config_manager.get_os_installer_settings()
+        try:
+            username = installer_settings[self.CREDENTIALS][self.USERNAME]
+            password = installer_settings[self.CREDENTIALS][self.PASSWORD]
+            cobbler_url = installer_settings[self.INSTALLER_URL]
+            self.tmpl_dir = CobblerInstaller.get_tmpl_path()
+
+        except KeyError as ex:
+            raise KeyError(ex.message)
+
+        # The connection is created when cobbler installer is initialized.
+        self.remote = self._get_cobbler_server(cobbler_url)
+        self.token = self._get_token(username, password)
+        self.pk_installer_config = None
+
+        logging.debug('%s instance created', 'CobblerInstaller')
+
+    @classmethod
+    def get_tmpl_path(cls):
+        return os.path.join(compass_setting.TMPL_DIR, 'cobbler')
+
+    def __repr__(self):
+        return '%r[remote=%r,token=%r' % (
+            self.__class__.__name__, self.remote, self.token)
+
+    def _get_cobbler_server(self, cobbler_url):
+        if not cobbler_url:
+            logging.error("Cobbler URL is None!")
+            raise Exception("Cobbler URL cannot be None!")
+
+        return xmlrpclib.Server(cobbler_url)
+
+    def _get_token(self, username, password):
+        if self.remote is None:
+            raise Exception("Cobbler remote instance is None!")
+        return self.remote.login(username, password)
+
+    def get_supported_oses(self):
+        """get supported os versions.
+
+        note::
+        In cobbler, we treat profile name as the indicator
+        of os version. It is just a simple indicator
+        and not accurate.
+        """
+        profiles = self.remote.get_profiles()
+        oses = []
+        for profile in profiles:
+            oses.append(profile['name'])
+        return oses
+
+    def deploy(self):
+        """Sync cobbler to catch up the latest update config and start to
+
+        install OS. Return both cluster and hosts deploy configs. The return
+        format:
+        {
+            "cluster": {
+                "id": 1,
+                "deployed_os_config": {},
+            },
+            "hosts": {
+                 1($clusterhost_id): {
+                      "deployed_os_config": {...},
+                 },
+                 ....
+            }
+        }
+        """
+        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.")
+            return {}
+
+        os_version = self.config_manager.get_os_version()
+        profile = self._get_profile_from_server(os_version)
+
+        global_vars_dict = self._get_cluster_tmpl_vars_dict()
+
+        self.update_profile_config_to_cobbler(profile, global_vars_dict)
+
+        hosts_deploy_config = {}
+
+        for host_id in host_ids:
+            hostname = self.config_manager.get_hostname(host_id)
+            vars_dict = self._get_host_tmpl_vars_dict(host_id,
+                                                      global_vars_dict,
+                                                      hostname=hostname,
+                                                      profile=profile)
+
+            self.update_host_config_to_cobbler(host_id, hostname, vars_dict)
+
+            # set host deploy config
+            host_config = {}
+            host_config[const.DEPLOYED_OS_CONFIG] = vars_dict[const.OS_CONFIG]
+            hosts_deploy_config[host_id] = host_config
+
+        # sync to cobbler and trigger installtion.
+        self._sync()
+
+        cluster_config = global_vars_dict.setdefault(const.OS_CONFIG, {})
+
+        return {
+            const.CLUSTER: {
+                const.ID: self.config_manager.get_cluster_id(),
+                const.DEPLOYED_OS_CONFIG: cluster_config
+            },
+            const.HOSTS: hosts_deploy_config
+        }
+
+    def clean_progress(self):
+        """clean log files and config for hosts which to deploy."""
+        clusterhost_list = self.config_manager.get_host_id_list()
+        log_dir_prefix = compass_setting.INSTALLATION_LOGDIR[NAME]
+
+        for host_id in clusterhost_list:
+            hostname = self.config_manager.get_hostname(host_id)
+            self._clean_log(log_dir_prefix, hostname)
+
+    def redeploy(self):
+        """redeploy hosts."""
+        host_ids = self.config_manager.get_host_id_list()
+        if not host_ids:
+            logging.info("Cobbler: hostlist is None, no host is redeployed")
+            return
+        for host_id in host_ids:
+            hostname = self.config_manager.get_hostname(host_id)
+            sys_id = self._get_create_system(hostname)
+            if sys_id:
+                # enable netboot for this host
+                self._netboot_enabled(sys_id)
+
+        self._sync()
+
+    def set_package_installer_config(self, package_configs):
+        """Cobbler can install and configure package installer right after
+
+        OS installation compelets by setting package_config info provided
+        by package installer.
+
+        :param dict package_configs: The dict of config generated by package
+                                     installer for each clusterhost. The IDs
+                                     of clusterhosts are the keys of
+                                     package_configs.
+        """
+        self.pk_installer_config = package_configs
+
+    def _sync(self):
+        """Sync the updated config to cobbler and trigger installation."""
+        try:
+            self.remote.sync(self.token)
+            os.system('sudo service rsyslog restart')
+        except Exception as ex:
+            logging.debug("Failed to sync cobbler server! Error: %s" % ex)
+            raise ex
+
+    def dump_system_info(self, host_id):
+
+        hostname = self.config_manager.get_hostname(host_id)
+        if self.remote is None or not hostname:
+            logging.info("[dump_system_info]Remote or hostname is None.")
+            return {}
+
+        return self.remote.get_system_as_rendered(hostname)
+
+    def _generate_system_config(self, host_id, host_vars_dict):
+        """Generate updated system config from the template.
+
+           :param host_vars_dict: dict of variables for the system template to
+                                  generate system config dict for each host.
+        """
+        os_version = self.config_manager.get_os_version()
+
+        tmpl_path = os.path.join(
+            os.path.join(self.tmpl_dir, os_version), self.SYS_TMPL_NAME
+        )
+        if not os.path.exists(tmpl_path):
+            err_msg = "Template '%s' does not exists!" % tmpl_path
+            logging.error(err_msg)
+            raise Exception(err_msg)
+        host_vars_dict[const.BASEINFO]['host_id'] = host_id
+        system_config = self.get_config_from_template(tmpl_path,
+                                                      host_vars_dict)
+
+        # update package config info to cobbler ksmeta
+        if self.pk_installer_config and host_id in self.pk_installer_config:
+            pk_config = self.pk_installer_config[host_id]
+            ksmeta = system_config.setdefault("ksmeta", {})
+            util.merge_dict(ksmeta, pk_config)
+            system_config["ksmeta"] = ksmeta
+
+        return system_config
+
+    def _generate_profile_config(self, cluster_vars_dict):
+        os_version = self.config_manager.get_os_version()
+        tmpl_path = os.path.join(
+            os.path.join(self.tmpl_dir, os_version), self.SYS_PROFILE_NAME
+        )
+
+        return self.get_config_from_template(tmpl_path, cluster_vars_dict)
+
+    def _get_profile_from_server(self, os_version):
+        """Get profile from cobbler server."""
+        result = self.remote.find_profile({'name': os_version})
+        if not result:
+            raise Exception("Cannot find profile for '%s'", os_version)
+
+        profile = result[0]
+        return profile
+
+    def _get_create_system(self, hostname):
+        """get system reference id for the host."""
+        sys_name = hostname
+        sys_id = None
+        system_info = self.remote.find_system({"name": hostname})
+
+        if not system_info:
+            # Create a new system
+            sys_id = self.remote.new_system(self.token)
+            self.remote.modify_system(sys_id, "name", hostname, self.token)
+            logging.debug('create new system %s for %s', sys_id, sys_name)
+        else:
+            sys_id = self.remote.get_system_handle(sys_name, self.token)
+
+        return sys_id
+
+    def _get_profile_id(self, profilename):
+        """get profile reference id for the cluster."""
+        return self.remote.get_profile_handle(profilename, self.token)
+
+    def _clean_system(self, hostname):
+        """clean system."""
+        sys_name = hostname
+        try:
+            self.remote.remove_system(sys_name, self.token)
+            logging.debug('system %s is removed', sys_name)
+        except Exception:
+            logging.debug('no system %s found to remove', sys_name)
+
+    def _update_system_config(self, sys_id, system_config):
+        """update modify system."""
+        for key, value in system_config.iteritems():
+            self.remote.modify_system(sys_id, str(key), value, self.token)
+
+        self.remote.save_system(sys_id, self.token)
+
+    def _update_profile_config(self, profile_id, profile_config):
+        for key, value in profile_config.iteritems():
+            self.remote.modify_profile(profile_id, str(key), value, self.token)
+
+        self.remote.save_profile(profile_id, self.token)
+
+    def _netboot_enabled(self, sys_id):
+        """enable netboot."""
+        self.remote.modify_system(sys_id, 'netboot_enabled', True, self.token)
+        self.remote.save_system(sys_id, self.token)
+
+    def _clean_log(self, log_dir_prefix, system_name):
+        """clean log."""
+        log_dir = os.path.join(log_dir_prefix, system_name)
+        shutil.rmtree(log_dir, True)
+
+    def update_host_config_to_cobbler(self, host_id, hostname, host_vars_dict):
+        """update host config and upload to cobbler server."""
+        sys_id = self._get_create_system(hostname)
+
+        system_config = self._generate_system_config(host_id, host_vars_dict)
+        logging.debug('%s system config to update: %s', host_id, system_config)
+
+        self._update_system_config(sys_id, system_config)
+        self._netboot_enabled(sys_id)
+
+    def update_profile_config_to_cobbler(self, profilename, cluster_vars_dict):
+        """update profile config and upload to cobbler server."""
+
+        profile_id = self._get_profile_id(profilename)
+
+        profile_config = self._generate_profile_config(cluster_vars_dict)
+        logging.debug(
+            '%s profile config to update: %s', profilename, profile_config
+        )
+
+        self._update_profile_config(profile_id, profile_config)
+
+    def delete_hosts(self):
+        hosts_id_list = self.config_manager.get_host_id_list()
+        logging.debug('delete hosts %s', hosts_id_list)
+        for host_id in hosts_id_list:
+            self.delete_single_host(host_id)
+        self._sync()
+
+    def delete_single_host(self, host_id):
+        """Delete the host from cobbler server and clean up the installation
+
+        progress.
+        """
+        hostname = self.config_manager.get_hostname(host_id)
+        try:
+            log_dir_prefix = compass_setting.INSTALLATION_LOGDIR[NAME]
+            self._clean_system(hostname)
+            self._clean_log(log_dir_prefix, hostname)
+        except Exception as ex:
+            logging.error("Deleting host got exception: %s", ex)
+            logging.exception(ex)
+
+    def _get_host_tmpl_vars_dict(self, host_id, global_vars_dict, **kwargs):
+        """Generate template variables dictionary."""
+        vars_dict = {}
+        if global_vars_dict:
+            # Set cluster template vars_dict from cluster os_config.
+            vars_dict = deepcopy(global_vars_dict)
+
+        # Set hostname, MAC address and hostname, networks, dns and so on.
+        host_baseinfo = self.config_manager.get_host_baseinfo(host_id)
+        vars_dict[const.BASEINFO] = host_baseinfo
+
+        # Set profile
+        if self.PROFILE in kwargs:
+            profile = kwargs[self.PROFILE]
+        else:
+            os_version = self.config_manager.get_os_version()
+            profile = self._get_profile_from_server(os_version)
+
+        vars_dict[const.BASEINFO][self.PROFILE] = profile
+
+        metadata = self.config_manager.get_os_config_metadata()
+        os_config = self.config_manager.get_host_os_config(host_id)
+
+        # Get template variables values from host os_config
+        host_vars_dict = self.get_tmpl_vars_from_metadata(metadata, os_config)
+        util.merge_dict(
+            vars_dict.setdefault(const.OS_CONFIG, {}), host_vars_dict
+        )
+        return vars_dict
+
+    def _get_cluster_tmpl_vars_dict(self):
+        metadata = self.config_manager.get_os_config_metadata()
+        os_config = self.config_manager.get_cluster_os_config()
+
+        cluster_vas_dict = {}
+        cluster_vas_dict[const.OS_CONFIG] = \
+            self.get_tmpl_vars_from_metadata(metadata, os_config)
+
+        return cluster_vas_dict
+
+    def _check_and_set_system_impi(self, host_id, sys_id):
+        if not sys_id:
+            logging.info("System is None!")
+            return False
+
+        system = self.dump_system_info(host_id)
+        if system[self.POWER_TYPE] != 'ipmilan' or not system[self.POWER_USER]:
+            # Set sytem power type to ipmilan if needs and set IPMI info
+            ipmi_info = self.config_manager.get_host_ipmi_info(host_id)
+            if not ipmi_info:
+                logging.info('No IPMI information found! Failed power on.')
+                return False
+
+            ipmi_ip, ipmi_user, ipmi_pass = ipmi_info
+            power_opts = {}
+            power_opts[self.POWER_TYPE] = 'ipmilan'
+            power_opts[self.POWER_ADDR] = ipmi_ip
+            power_opts[self.POWER_USER] = ipmi_user
+            power_opts[self.POWER_PASS] = ipmi_pass
+
+            self._update_system_config(sys_id, power_opts)
+
+        return True
+
+    def poweron(self, host_id):
+        hostname = self.config_manager.get_hostname(host_id)
+        sys_id = self._get_create_system(hostname)
+        if not self._check_and_set_system_impi(sys_id):
+            return
+
+        self.remote.power_system(sys_id, self.token, power='on')
+        logging.info("Host with ID=%d starts to power on!" % host_id)
+
+    def poweroff(self, host_id):
+        hostname = self.config_manager.get_hostname(host_id)
+        sys_id = self._get_create_system(hostname)
+        if not self._check_and_set_system_impi(sys_id):
+            return
+
+        self.remote.power_system(sys_id, self.token, power='off')
+        logging.info("Host with ID=%d starts to power off!" % host_id)
+
+    def reset(self, host_id):
+        hostname = self.config_manager.get_hostname(host_id)
+        sys_id = self._get_create_system(hostname)
+        if not self._check_and_set_system_impi(sys_id):
+            return
+
+        self.remote.power_system(sys_id, self.token, power='reboot')
+        logging.info("Host with ID=%d starts to reboot!" % host_id)
diff --git a/compass-tasks-base/deployment/installers/pk_installers/__init__.py b/compass-tasks-base/deployment/installers/pk_installers/__init__.py
new file mode 100644
index 0000000..5e42ae9
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/pk_installers/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/compass-tasks-base/deployment/installers/pk_installers/ansible_installer/__init__.py b/compass-tasks-base/deployment/installers/pk_installers/ansible_installer/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/pk_installers/ansible_installer/__init__.py
diff --git a/compass-tasks-base/deployment/installers/pk_installers/ansible_installer/ansible_installer.py b/compass-tasks-base/deployment/installers/pk_installers/ansible_installer/ansible_installer.py
new file mode 100644
index 0000000..0a86be4
--- /dev/null
+++ b/compass-tasks-base/deployment/installers/pk_installers/ansible_installer/ansible_installer.py
@@ -0,0 +1,441 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__auther__ = "Compass Dev Team (dev-team@syscompass.org)"
+
+"""package installer: ansible plugin."""
+
+from Cheetah.Template import Template
+from copy import deepcopy
+import json
+import logging
+import os
+import re
+import shutil
+import subprocess
+
+from compass.deployment.installers.installer import PKInstaller
+from compass.deployment.utils import constants as const
+from compass.utils import setting_wrapper as compass_setting
+from compass.utils import util
+
+NAME = "AnsibleInstaller"
+
+
+def byteify(input):
+    if isinstance(input, dict):
+        return dict([(byteify(key), byteify(value))
+                    for key, value in input.iteritems()])
+    elif isinstance(input, list):
+        return [byteify(element) for element in input]
+    elif isinstance(input, unicode):
+        return input.encode('utf-8')
+    else:
+        return input
+
+
+class AnsibleInstaller(PKInstaller):
+    INVENTORY_TMPL_DIR = 'inventories'
+    GROUPVARS_TMPL_DIR = 'vars'
+    INVENTORY_PATCH_TEMPALTE_DIR = 'inventories'
+
+    # keywords in package installer settings
+    ANSIBLE_DIR = 'ansible_dir'
+    ANSIBLE_RUN_DIR = 'ansible_run_dir'
+    LOG_FILE = 'ansible_log_file'
+    ANSIBLE_CONFIG = 'ansible_config'
+    INVENTORY = 'inventory_file'
+    INVENTORY_JSON = 'inventory_json_file'
+    INVENTORY_GROUP = 'inventory_group'
+    GROUP_VARIABLE = 'group_variable'
+    HOSTS_PATH = 'etc_hosts_path'
+    RUNNER_DIRS = 'runner_dirs'
+
+    def __init__(self, config_manager):
+        super(AnsibleInstaller, self).__init__()
+
+        self.config_manager = config_manager
+        self.tmpl_name = self.config_manager.get_cluster_flavor_template()
+        self.installer_settings = (
+            self.config_manager.get_pk_installer_settings()
+        )
+        settings = self.installer_settings
+        self.ansible_dir = settings.setdefault(self.ANSIBLE_DIR, None)
+        self.ansible_run_dir = (
+            settings.setdefault(self.ANSIBLE_RUN_DIR, None)
+        )
+        self.log_file = settings.setdefault(self.LOG_FILE, None)
+        self.ansible_config = (
+            settings.setdefault(self.ANSIBLE_CONFIG, None)
+        )
+        self.inventory = settings.setdefault(self.INVENTORY, None)
+        self.inventory_json = settings.setdefault(self.INVENTORY_JSON, None)
+        self.inventory_group = settings.setdefault(self.INVENTORY_GROUP, None)
+        self.group_variable = (
+            settings.setdefault(self.GROUP_VARIABLE, None)
+        )
+        self.hosts_path = (
+            settings.setdefault(self.HOSTS_PATH, None)
+        )
+        self.runner_dirs = (
+            settings.setdefault(self.RUNNER_DIRS, None)
+        )
+        self.playbook = self.tmpl_name.replace('tmpl', 'yml')
+        self.runner_files = [self.playbook]
+
+        adapter_name = self.config_manager.get_dist_system_name()
+        self.tmpl_dir = AnsibleInstaller.get_tmpl_path(adapter_name)
+        self.adapter_dir = os.path.join(self.ansible_dir, adapter_name)
+        logging.debug('%s instance created', self)
+
+    @classmethod
+    def get_tmpl_path(cls, adapter_name):
+        tmpl_path = os.path.join(
+            os.path.join(compass_setting.TMPL_DIR, 'ansible_installer'),
+            adapter_name
+        )
+        return tmpl_path
+
+    def __repr__(self):
+        return '%s[name=%s,installer_url=%s]' % (
+            self.__class__.__name__, self.NAME, self.installer_url)
+
+    def dump_inventory(self, data, inventory):
+        with open(inventory, "w") as f:
+            json.dump(data, f, indent=4)
+
+    def _generate_inventory_data(self, global_vars_dict):
+        vars_dict = global_vars_dict['roles_mapping']
+        inventory_data = {}
+        inventory_data['_meta'] = {'hostvars': {}}
+        for item in self.inventory_group:
+            if item in vars_dict:
+                inventory_data[item] = {'hosts': []}
+                for host in vars_dict[item]:
+                    hostname = host['hostname']
+                    if hostname not in inventory_data['_meta']['hostvars']:
+                        host_dict = {}
+                        host_dict['ansible_ssh_host'] = host['install']['ip']
+                        host_dict['ansible_ssh_user'] = 'root'
+                        host_dict['ansible_ssh_pass'] = 'root'
+                        inventory_data['_meta']['hostvars'].update(
+                            {hostname: host_dict})
+                    inventory_data[item]['hosts'].append(hostname)
+
+        inventory_data['ceph'] = {'children':
+                                 ['ceph_adm', 'ceph_mon', 'ceph_osd']}
+        return inventory_data
+
+    def generate_installer_config(self):
+        """Render ansible config file by OS installing.
+
+        The output format:
+        {
+           '1'($host_id/clusterhost_id):{
+               'tool': 'ansible',
+           },
+           .....
+        }
+        """
+        host_ids = self.config_manager.get_host_id_list()
+        os_installer_configs = {}
+        for host_id in host_ids:
+            temp = {
+                "tool": "ansible",
+            }
+            os_installer_configs[host_id] = temp
+
+        return os_installer_configs
+
+    def get_env_name(self, dist_sys_name, cluster_name):
+        return "-".join((dist_sys_name, cluster_name))
+
+    def _get_cluster_tmpl_vars(self):
+        """Generate template variables dict
+
+        Generates based on cluster level config.
+        The vars_dict will be:
+        {
+            "baseinfo": {
+                "id":1,
+                "name": "cluster01",
+                ...
+            },
+            "package_config": {
+                .... //mapped from original package config based on metadata
+            },
+            "role_mapping": {
+                ....
+            }
+        }
+        """
+        cluster_vars_dict = {}
+        # set cluster basic information to vars_dict
+        cluster_baseinfo = self.config_manager.get_cluster_baseinfo()
+        cluster_vars_dict[const.BASEINFO] = cluster_baseinfo
+
+        # get and set template variables from cluster package config.
+        pk_metadata = self.config_manager.get_pk_config_meatadata()
+        pk_config = self.config_manager.get_cluster_package_config()
+
+        # get os config as ansible needs them
+        os_metadata = self.config_manager.get_os_config_metadata()
+        os_config = self.config_manager.get_cluster_os_config()
+
+        pk_meta_dict = self.get_tmpl_vars_from_metadata(pk_metadata, pk_config)
+        os_meta_dict = self.get_tmpl_vars_from_metadata(os_metadata, os_config)
+        util.merge_dict(pk_meta_dict, os_meta_dict)
+
+        cluster_vars_dict[const.PK_CONFIG] = pk_meta_dict
+
+        # get and set roles_mapping to vars_dict
+        mapping = self.config_manager.get_cluster_roles_mapping()
+        logging.info("cluster role mapping is %s", mapping)
+        cluster_vars_dict[const.ROLES_MAPPING] = mapping
+
+        # get ip settings to vars_dict
+        hosts_ip_settings = self.config_manager.get_hosts_ip_settings(
+            pk_meta_dict["network_cfg"]["ip_settings"],
+            pk_meta_dict["network_cfg"]["sys_intf_mappings"]
+        )
+        logging.info("hosts_ip_settings is %s", hosts_ip_settings)
+        cluster_vars_dict["ip_settings"] = hosts_ip_settings
+
+        return byteify(cluster_vars_dict)
+
+    def _generate_inventory_attributes(self, global_vars_dict):
+        inventory_tmpl_path = os.path.join(
+            os.path.join(self.tmpl_dir, self.INVENTORY_TMPL_DIR),
+            self.tmpl_name
+        )
+        if not os.path.exists(inventory_tmpl_path):
+            logging.error(
+                "Inventory template '%s' does not exist", self.tmpl_name
+            )
+            raise Exception("Template '%s' does not exist!" % self.tmpl_name)
+        inventory_dir = os.path.join(global_vars_dict['run_dir'], 'inventories')
+        inventory_json = os.path.join(inventory_dir, self.inventory_json)
+        vars_dict = {'inventory_json': inventory_json}
+        return self.get_config_from_template(
+            inventory_tmpl_path, vars_dict
+        )
+
+    def _generate_group_vars_attributes(self, global_vars_dict):
+        logging.info("global vars dict is %s", global_vars_dict)
+        group_vars_tmpl_path = os.path.join(
+            os.path.join(self.tmpl_dir, self.GROUPVARS_TMPL_DIR),
+            self.tmpl_name
+        )
+        if not os.path.exists(group_vars_tmpl_path):
+            logging.error("Vars template '%s' does not exist",
+                          self.tmpl_name)
+            raise Exception("Template '%s' does not exist!" % self.tmpl_name)
+
+        return self.get_config_from_template(
+            group_vars_tmpl_path, global_vars_dict
+        )
+
+    def _generate_hosts_attributes(self, global_vars_dict):
+        hosts_tmpl_path = os.path.join(
+            os.path.join(self.tmpl_dir, 'hosts'), self.tmpl_name
+        )
+        if not os.path.exists(hosts_tmpl_path):
+            logging.error("Hosts template '%s' does not exist", self.tmpl_name)
+            raise Exception("Template '%s' does not exist!" % self.tmpl_name)
+
+        return self.get_config_from_template(hosts_tmpl_path, global_vars_dict)
+
+    def _generate_ansible_cfg_attributes(self, global_vars_dict):
+        ansible_cfg_tmpl_path = os.path.join(
+            os.path.join(self.tmpl_dir, 'ansible_cfg'), self.tmpl_name
+        )
+        if not os.path.exists(ansible_cfg_tmpl_path):
+            logging.error("cfg template '%s' does not exist", self.tmpl_name)
+            raise Exception("Template '%s' does not exist!" % self.tmpl_name)
+
+        return self.get_config_from_template(
+            ansible_cfg_tmpl_path,
+            global_vars_dict
+        )
+
+    def get_config_from_template(self, tmpl_path, vars_dict):
+        logging.debug("vars_dict is %s", vars_dict)
+
+        if not os.path.exists(tmpl_path) or not vars_dict:
+            logging.info("Template dir or vars_dict is None!")
+            return {}
+
+        searchList = []
+        copy_vars_dict = deepcopy(vars_dict)
+        for key, value in vars_dict.iteritems():
+            if isinstance(value, dict):
+                temp = copy_vars_dict[key]
+                del copy_vars_dict[key]
+                searchList.append(temp)
+        searchList.append(copy_vars_dict)
+
+        # Load specific template for current adapter
+        tmpl = Template(file=open(tmpl_path, "r"), searchList=searchList)
+        return tmpl.respond()
+
+    def _create_ansible_run_env(self, env_name, ansible_run_destination):
+        if os.path.exists(ansible_run_destination):
+            shutil.rmtree(ansible_run_destination, True)
+
+        os.mkdir(ansible_run_destination)
+
+        # copy roles to run env
+        dirs = self.runner_dirs
+        files = self.runner_files
+        for dir in dirs:
+            if not os.path.exists(os.path.join(self.ansible_dir, dir)):
+                continue
+            os.system(
+                "cp -rf %s %s" % (
+                    os.path.join(self.ansible_dir, dir),
+                    ansible_run_destination
+                )
+            )
+        for file in files:
+            logging.info('file is %s', file)
+            shutil.copy(
+                os.path.join(self.adapter_dir, file),
+                os.path.join(
+                    ansible_run_destination,
+                    file
+                )
+            )
+
+    def prepare_ansible(self, env_name, global_vars_dict):
+        ansible_run_destination = os.path.join(self.ansible_run_dir, env_name)
+        if os.path.exists(ansible_run_destination):
+            ansible_run_destination += "-expansion"
+        self._create_ansible_run_env(env_name, ansible_run_destination)
+        global_vars_dict.update({'run_dir': ansible_run_destination})
+
+        inv_config = self._generate_inventory_attributes(global_vars_dict)
+        inventory_dir = os.path.join(ansible_run_destination, 'inventories')
+
+        vars_config = self._generate_group_vars_attributes(global_vars_dict)
+        vars_dir = os.path.join(ansible_run_destination, 'group_vars')
+
+        hosts_config = self._generate_hosts_attributes(global_vars_dict)
+        hosts_destination = os.path.join(
+            ansible_run_destination, self.hosts_path
+        )
+
+        cfg_config = self._generate_ansible_cfg_attributes(global_vars_dict)
+        cfg_destination = os.path.join(
+            ansible_run_destination,
+            self.ansible_config
+        )
+
+        inventory_data = self._generate_inventory_data(global_vars_dict)
+        inventory_json_destination = os.path.join(inventory_dir,
+                                                  self.inventory_json)
+
+        os.mkdir(inventory_dir)
+        os.mkdir(vars_dir)
+
+        inventory_destination = os.path.join(inventory_dir, self.inventory)
+        group_vars_destination = os.path.join(vars_dir, self.group_variable)
+        self.dump_inventory(inventory_data, inventory_json_destination)
+        self.serialize_config(inv_config, inventory_destination)
+        self.serialize_config(vars_config, group_vars_destination)
+        self.serialize_config(hosts_config, hosts_destination)
+        self.serialize_config(cfg_config, cfg_destination)
+
+    def deploy(self):
+        """Start to deploy a distributed system.
+
+        Return both cluster and hosts deployed configs.
+        The return format:
+        {
+            "cluster": {
+                "id": 1,
+                "deployed_package_config": {
+                    "roles_mapping": {...},
+                    "service_credentials": {...},
+                    ....
+                }
+            },
+            "hosts": {
+                1($clusterhost_id): {
+                    "deployed_package_config": {...}
+                },
+                ....
+            }
+        }
+        """
+        host_list = self.config_manager.get_host_id_list()
+        if not host_list:
+            return {}
+
+        adapter_name = self.config_manager.get_adapter_name()
+        cluster_name = self.config_manager.get_clustername()
+        env_name = self.get_env_name(adapter_name, cluster_name)
+
+        global_vars_dict = self._get_cluster_tmpl_vars()
+        logging.info(
+            '%s var dict: %s', self.__class__.__name__, global_vars_dict
+        )
+        # Create ansible related files
+        self.prepare_ansible(env_name, global_vars_dict)
+
+    def patch(self, patched_role_mapping):
+        adapter_name = self.config_manager.get_adapter_name()
+        cluster_name = self.config_manager.get_clustername()
+        env_name = self.get_env_name(adapter_name, cluster_name)
+        ansible_run_destination = os.path.join(self.ansible_run_dir, env_name)
+        inventory_dir = os.path.join(ansible_run_destination, 'inventories')
+        patched_global_vars_dict = self._get_cluster_tmpl_vars()
+        mapping = self.config_manager.get_cluster_patched_roles_mapping()
+        patched_global_vars_dict['roles_mapping'] = mapping
+        patched_inv = self._generate_inventory_attributes(
+            patched_global_vars_dict)
+        inv_file = os.path.join(inventory_dir, 'patched_inventory.yml')
+        self.serialize_config(patched_inv, inv_file)
+        config_file = os.path.join(
+            ansible_run_destination, self.ansible_config
+        )
+        playbook_file = os.path.join(ansible_run_destination, self.playbook)
+        log_file = os.path.join(ansible_run_destination, 'patch.log')
+        cmd = "ANSIBLE_CONFIG=%s ansible-playbook -i %s %s" % (config_file,
+                                                               inv_file,
+                                                               playbook_file)
+        with open(log_file, 'w') as logfile:
+            subprocess.Popen(cmd, shell=True, stdout=logfile, stderr=logfile)
+        return patched_role_mapping
+
+    def cluster_os_ready(self):
+        adapter_name = self.config_manager.get_adapter_name()
+        cluster_name = self.config_manager.get_clustername()
+        env_name = self.get_env_name(adapter_name, cluster_name)
+        ansible_run_destination = os.path.join(self.ansible_run_dir, env_name)
+        expansion_dir = ansible_run_destination + "-expansion"
+        if os.path.exists(expansion_dir):
+            ansible_run_destination = expansion_dir
+        inventory_dir = os.path.join(ansible_run_destination, 'inventories')
+        inventory_file = os.path.join(inventory_dir, self.inventory)
+        playbook_file = os.path.join(ansible_run_destination, self.playbook)
+        log_file = os.path.join(ansible_run_destination, 'run.log')
+        config_file = os.path.join(
+            ansible_run_destination, self.ansible_config
+        )
+	os.system("chmod +x %s" % inventory_file)
+        cmd = "ANSIBLE_CONFIG=%s ansible-playbook -i %s %s" % (config_file,
+                                                               inventory_file,
+                                                               playbook_file)
+        with open(log_file, 'w') as logfile:
+            subprocess.Popen(cmd, shell=True, stdout=logfile, stderr=logfile)
diff --git a/compass-tasks-base/deployment/utils/__init__.py b/compass-tasks-base/deployment/utils/__init__.py
new file mode 100644
index 0000000..cbd36e0
--- /dev/null
+++ b/compass-tasks-base/deployment/utils/__init__.py
@@ -0,0 +1,15 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "Grace Yu (grace.yu@huawei.com)"
diff --git a/compass-tasks-base/deployment/utils/constants.py b/compass-tasks-base/deployment/utils/constants.py
new file mode 100644
index 0000000..e90b1b2
--- /dev/null
+++ b/compass-tasks-base/deployment/utils/constants.py
@@ -0,0 +1,84 @@
+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__author__ = "Grace Yu (grace.yu@huawei.com)"
+
+
+"""All keywords variables in deployment are defined in this module."""
+
+
+# General keywords
+BASEINFO = 'baseinfo'
+CLUSTER = 'cluster'
+HOST = 'host'
+HOSTS = 'hosts'
+ID = 'id'
+NAME = 'name'
+PASSWORD = 'password'
+USERNAME = 'username'
+
+
+# Adapter info related keywords
+FLAVOR = 'flavor'
+FLAVORS = 'flavors'
+PLAYBOOK = 'playbook'
+FLAVOR_NAME = 'flavor_name'
+HEALTH_CHECK_CMD = 'health_check_cmd'
+TMPL = 'template'
+INSTALLER_SETTINGS = 'settings'
+METADATA = 'metadata'
+OS_INSTALLER = 'os_installer'
+PK_INSTALLER = 'package_installer'
+SUPPORT_OSES = 'supported_oses'
+
+
+# Cluster info related keywords
+ADAPTER_ID = 'adapter_id'
+OS_VERSION = 'os_name'
+
+
+# Host info related keywords
+DNS = 'dns'
+DOMAIN = 'domain'
+HOST_ID = 'host_id'
+HOSTNAME = 'hostname'
+IP_ADDR = 'ip'
+IPMI = 'ipmi'
+IPMI_CREDS = 'ipmi_credentials'
+MAC_ADDR = 'mac'
+MGMT_NIC_FLAG = 'is_mgmt'
+NETMASK = 'netmask'
+NETWORKS = 'networks'
+NIC = 'interface'
+CLUSTER_ID = 'cluster_id'
+ORIGIN_CLUSTER_ID = 'origin_cluster_id'
+PROMISCUOUS_FLAG = 'is_promiscuous'
+REINSTALL_OS_FLAG = 'reinstall_os'
+SUBNET = 'subnet'
+
+
+# Cluster/host config related keywords
+COMPLETED_PK_CONFIG = 'completed_package_config'
+COMPLETED_OS_CONFIG = 'completed_os_config'
+DEPLOYED_OS_CONFIG = 'deployed_os_config'
+DEPLOYED_PK_CONFIG = 'deployed_package_config'
+NETWORK_MAPPING = 'network_mapping'
+OS_CONFIG = 'os_config'
+OS_CONFIG_GENERAL = 'general'
+PK_CONFIG = 'package_config'
+ROLES = 'roles'
+PATCHED_ROLES = 'patched_roles'
+ROLES_MAPPING = 'roles_mapping'
+SERVER_CREDS = 'server_credentials'
+TMPL_VARS_DICT = 'vars_dict'