12 files changed, 992 insertions, 3 deletions
diff --git a/cloudinit/sources/DataSourceOVF.py b/cloudinit/sources/DataSourceOVF.py
index 58a4b2a2..72ba5aba 100644
--- a/cloudinit/sources/DataSourceOVF.py
+++ b/cloudinit/sources/DataSourceOVF.py
@@ -24,11 +24,16 @@ from xml.dom import minidom
 
 import base64
 import os
+import shutil
 import re
+import time
 
 from cloudinit import log as logging
 from cloudinit import sources
 from cloudinit import util
+from cloudinit.sources.helpers.vmware.imc.config import Config
+from cloudinit.sources.helpers.vmware.imc.config_file import ConfigFile
+from cloudinit.sources.helpers.vmware.imc.config_nic import NicConfigurator
 
 LOG = logging.getLogger(__name__)
 
@@ -50,13 +55,46 @@ class DataSourceOVF(sources.DataSource):
         found = []
         md = {}
         ud = ""
+        vmwarePlatformFound = False
+        vmwareImcConfigFilePath = ''
 
         defaults = {
             "instance-id": "iid-dsovf",
         }
 
         (seedfile, contents) = get_ovf_env(self.paths.seed_dir)
-        if seedfile:
+
+        system_type = util.read_dmi_data("system-product-name")
+        if system_type is None:
+           LOG.debug("No system-product-name found")
+        elif 'vmware' in system_type.lower():
+            LOG.debug("VMware Virtual Platform found")
+            deployPkgPluginPath = search_file("/usr/lib/vmware-tools", "libdeployPkgPlugin.so")
+            if deployPkgPluginPath:
+                vmwareImcConfigFilePath = util.log_time(logfunc=LOG.debug,
+                                  msg="waiting for configuration file",
+                                  func=wait_for_imc_cfg_file,
+                                  args=("/tmp", "cust.cfg"))
+
+            if vmwareImcConfigFilePath:
+                LOG.debug("Found VMware DeployPkg Config File Path at %s" % vmwareImcConfigFilePath)
+            else:
+                LOG.debug("Didn't find VMware DeployPkg Config File Path")
+
+        if vmwareImcConfigFilePath:
+            try:
+                cf = ConfigFile(vmwareImcConfigFilePath)
+                conf = Config(cf)
+                (md, ud, cfg) = read_vmware_imc(conf)
+                nicConfigurator = NicConfigurator(conf.nics)
+                nicConfigurator.configure()
+                vmwarePlatformFound = True
+            except Exception as inst:
+                LOG.debug("Error while parsing the Customization Config File")
+            finally:
+                dirPath = os.path.dirname(vmwareImcConfigFilePath)
+                shutil.rmtree(dirPath)
+        elif seedfile:
             # Found a seed dir
             seed = os.path.join(self.paths.seed_dir, seedfile)
             (md, ud, cfg) = read_ovf_environment(contents)
@@ -76,7 +114,7 @@ class DataSourceOVF(sources.DataSource):
                 found.append(name)
 
         # There was no OVF transports found
-        if len(found) == 0:
+        if len(found) == 0 and not vmwarePlatformFound:
             return False
 
         if 'seedfrom' in md and md['seedfrom']:
@@ -108,7 +146,7 @@ class DataSourceOVF(sources.DataSource):
 
     def get_public_ssh_keys(self):
         if 'public-keys' not in self.metadata:
-            return []
+           return []
         pks = self.metadata['public-keys']
         if isinstance(pks, (list)):
             return pks
@@ -129,6 +167,31 @@ class DataSourceOVFNet(DataSourceOVF):
         self.supported_seed_starts = ("http://", "https://", "ftp://")
 
 
+def wait_for_imc_cfg_file(dirpath, filename, maxwait=180, naplen=5):
+    waited = 0
+    
+    while waited < maxwait:
+        fileFullPath = search_file(dirpath, filename)
+        if fileFullPath:
+            return fileFullPath
+        time.sleep(naplen)
+        waited += naplen
+    return None
+
+# This will return a dict with some content
+#  meta-data, user-data, some config
+def read_vmware_imc(config):
+    md = {}
+    cfg = {}
+    ud = ""
+    if config.host_name:
+       if config.domain_name:
+          md['local-hostname'] = config.host_name + "." + config.domain_name
+       else:
+          md['local-hostname'] = config.host_name
+
+    return (md, ud, cfg)
+
 # This will return a dict with some content
 #  meta-data, user-data, some config
 def read_ovf_environment(contents):
@@ -281,6 +344,16 @@ def get_properties(contents):
     return props
 
 
+def search_file(dirpath, filename):
+    if not dirpath or not filename:
+       return None
+
+    for root, dirs, files in os.walk(dirpath):
+        if filename in files:
+            return os.path.join(root, filename)
+
+    return None
+
 class XmlError(Exception):
     pass
 
diff --git a/cloudinit/sources/helpers/vmware/__init__.py b/cloudinit/sources/helpers/vmware/__init__.py
new file mode 100644
index 00000000..386225d5
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/__init__.py
@@ -0,0 +1,13 @@
+# vi: ts=4 expandtab
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/cloudinit/sources/helpers/vmware/imc/__init__.py b/cloudinit/sources/helpers/vmware/imc/__init__.py
new file mode 100644
index 00000000..386225d5
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/__init__.py
@@ -0,0 +1,13 @@
+# vi: ts=4 expandtab
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/cloudinit/sources/helpers/vmware/imc/boot_proto.py b/cloudinit/sources/helpers/vmware/imc/boot_proto.py
new file mode 100644
index 00000000..faba5887
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/boot_proto.py
@@ -0,0 +1,25 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class BootProtoEnum:
+    """Specifies the NIC Boot Settings."""
+
+    DHCP = 'dhcp'
+    STATIC = 'static'
diff --git a/cloudinit/sources/helpers/vmware/imc/config.py b/cloudinit/sources/helpers/vmware/imc/config.py
new file mode 100644
index 00000000..aebc12a0
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/config.py
@@ -0,0 +1,95 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from .nic import Nic
+
+
+class Config:
+    """
+    Stores the Contents specified in the Customization
+    Specification file.
+    """
+
+    DNS = 'DNS|NAMESERVER|'
+    SUFFIX = 'DNS|SUFFIX|'
+    PASS = 'PASSWORD|-PASS'
+    TIMEZONE = 'DATETIME|TIMEZONE'
+    UTC = 'DATETIME|UTC'
+    HOSTNAME = 'NETWORK|HOSTNAME'
+    DOMAINNAME = 'NETWORK|DOMAINNAME'
+
+    def __init__(self, configFile):
+        self._configFile = configFile
+
+    @property
+    def host_name(self):
+        """Return the hostname."""
+        return self._configFile.get(Config.HOSTNAME, None)
+
+    @property
+    def domain_name(self):
+        """Return the domain name."""
+        return self._configFile.get(Config.DOMAINNAME, None)
+
+    @property
+    def timezone(self):
+        """Return the timezone."""
+        return self._configFile.get(Config.TIMEZONE, None)
+
+    @property
+    def utc(self):
+        """Retrieves whether to set time to UTC or Local."""
+        return self._configFile.get(Config.UTC, None)
+
+    @property
+    def admin_password(self):
+        """Return the root password to be set."""
+        return self._configFile.get(Config.PASS, None)
+
+    @property
+    def name_servers(self):
+        """Return the list of DNS servers."""
+        res = []
+        cnt = self._configFile.get_count_with_prefix(Config.DNS)
+        for i in range(1, cnt + 1):
+            key = Config.DNS + str(i)
+            res.append(self._configFile[key])
+
+        return res
+
+    @property
+    def dns_suffixes(self):
+        """Return the list of DNS Suffixes."""
+        res = []
+        cnt = self._configFile.get_count_with_prefix(Config.SUFFIX)
+        for i in range(1, cnt + 1):
+            key = Config.SUFFIX + str(i)
+            res.append(self._configFile[key])
+
+        return res
+
+    @property
+    def nics(self):
+        """Return the list of associated NICs."""
+        res = []
+        nics = self._configFile['NIC-CONFIG|NICS']
+        for nic in nics.split(','):
+            res.append(Nic(nic, self._configFile))
+
+        return res
diff --git a/cloudinit/sources/helpers/vmware/imc/config_file.py b/cloudinit/sources/helpers/vmware/imc/config_file.py
new file mode 100644
index 00000000..bb9fb7dc
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/config_file.py
@@ -0,0 +1,129 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
+
+from .config_source import ConfigSource
+
+logger = logging.getLogger(__name__)
+
+
+class ConfigFile(ConfigSource, dict):
+    """ConfigFile module to load the content from a specified source."""
+
+    def __init__(self, filename):
+        self._loadConfigFile(filename)
+        pass
+
+    def _insertKey(self, key, val):
+        """
+        Inserts a Key Value pair.
+
+        Keyword arguments:
+        key -- The key to insert
+        val -- The value to insert for the key
+
+        """
+        key = key.strip()
+        val = val.strip()
+
+        if key.startswith('-') or '|-' in key:
+            canLog = False
+        else:
+            canLog = True
+
+        # "sensitive" settings shall not be logged
+        if canLog:
+            logger.debug("ADDED KEY-VAL :: '%s' = '%s'" % (key, val))
+        else:
+            logger.debug("ADDED KEY-VAL :: '%s' = '*****************'" % key)
+
+        self[key] = val
+
+    def _loadConfigFile(self, filename):
+        """
+        Parses properties from the specified config file.
+
+        Any previously available properties will be removed.
+        Sensitive data will not be logged in case the key starts
+        from '-'.
+
+        Keyword arguments:
+        filename - The full path to the config file.
+        """
+        logger.info('Parsing the config file %s.' % filename)
+
+        config = configparser.ConfigParser()
+        config.optionxform = str
+        config.read(filename)
+
+        self.clear()
+
+        for category in config.sections():
+            logger.debug("FOUND CATEGORY = '%s'" % category)
+
+            for (key, value) in config.items(category):
+                self._insertKey(category + '|' + key, value)
+
+    def should_keep_current_value(self, key):
+        """
+        Determines whether a value for a property must be kept.
+
+        If the propery is missing, it is treated as it should be not
+        changed by the engine.
+
+        Keyword arguments:
+        key -- The key to search for.
+        """
+        # helps to distinguish from "empty" value which is used to indicate
+        # "removal"
+        return key not in self
+
+    def should_remove_current_value(self, key):
+        """
+        Determines whether a value for the property must be removed.
+
+        If the specified key is empty, it is treated as it should be
+        removed by the engine.
+
+        Return true if the value can be removed, false otherwise.
+
+        Keyword arguments:
+        key -- The key to search for.
+        """
+        # helps to distinguish from "missing" value which is used to indicate
+        # "keeping unchanged"
+        if key in self:
+            return not bool(self[key])
+        else:
+            return False
+
+    def get_count_with_prefix(self, prefix):
+        """
+        Return the total count of keys that start with the specified prefix.
+
+        Keyword arguments:
+        prefix -- prefix of the key
+        """
+        return len([key for key in self if key.startswith(prefix)])
diff --git a/cloudinit/sources/helpers/vmware/imc/config_namespace.py b/cloudinit/sources/helpers/vmware/imc/config_namespace.py
new file mode 100644
index 00000000..7266b699
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/config_namespace.py
@@ -0,0 +1,25 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from .config_source import ConfigSource
+
+
+class ConfigNamespace(ConfigSource):
+    """Specifies the Config Namespace."""
+    pass
diff --git a/cloudinit/sources/helpers/vmware/imc/config_nic.py b/cloudinit/sources/helpers/vmware/imc/config_nic.py
new file mode 100644
index 00000000..172a1649
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/config_nic.py
@@ -0,0 +1,247 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2016 VMware INC.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+import os
+import subprocess
+import re
+
+from cloudinit import util
+
+logger = logging.getLogger(__name__)
+
+
+class NicConfigurator:
+    def __init__(self, nics):
+        """
+        Initialize the Nic Configurator
+        @param nics (list) an array of nics to configure
+        """
+        self.nics = nics
+        self.mac2Name = {}
+        self.ipv4PrimaryGateway = None
+        self.ipv6PrimaryGateway = None
+        self.find_devices()
+        self._primaryNic = self.get_primary_nic()
+
+    def get_primary_nic(self):
+        """
+        Retrieve the primary nic if it exists
+        @return (NicBase): the primary nic if exists, None otherwise
+        """
+        primary_nics = [nic for nic in self.nics if nic.primary]
+        if not primary_nics:
+           return None
+        elif len(primary_nics) > 1:
+           raise Exception('There can only be one primary nic',
+                            [nic.mac for nic in primary_nics])
+        else:
+           return primary_nics[0]
+
+    def find_devices(self):
+        """
+        Create the mac2Name dictionary
+        The mac address(es) are in the lower case
+        """
+        cmd = ['ip', 'addr', 'show']
+        (output, err) = util.subp(cmd)
+        sections = re.split(r'\n\d+: ', '\n' + output)[1:]
+
+        macPat = r'link/ether (([0-9A-Fa-f]{2}[:]){5}([0-9A-Fa-f]{2}))'
+        for section in sections:
+            match = re.search(macPat, section)
+            if not match:  # Only keep info about nics
+                continue
+            mac = match.group(1).lower()
+            name = section.split(':', 1)[0]
+            self.mac2Name[mac] = name
+
+    def gen_one_nic(self, nic):
+        """
+        Return the lines needed to configure a nic
+        @return (str list): the string list to configure the nic
+        @param nic (NicBase): the nic to configure
+        """
+        lines = []
+        name = self.mac2Name.get(nic.mac.lower())
+        if not name:
+            raise ValueError('No known device has MACADDR: %s' % nic.mac)
+
+        if nic.onboot:
+            lines.append('auto %s' % name)
+
+        # Customize IPv4
+        lines.extend(self.gen_ipv4(name, nic))
+
+        # Customize IPv6
+        lines.extend(self.gen_ipv6(name, nic))
+
+        lines.append('')
+
+        return lines
+
+    def gen_ipv4(self, name, nic):
+        """
+        Return the lines needed to configure the IPv4 setting of a nic
+        @return (str list): the string list to configure the gateways
+        @param name (str): name of the nic
+        @param nic (NicBase): the nic to configure
+        """
+        lines = []
+
+        bootproto = nic.bootProto.lower()
+        if nic.ipv4_mode.lower() == 'disabled':
+            bootproto = 'manual'
+        lines.append('iface %s inet %s' % (name, bootproto))
+
+        if bootproto != 'static':
+            return lines
+
+        # Static Ipv4
+        v4 = nic.staticIpv4
+        if v4.ip:
+            lines.append('    address %s' % v4.ip)
+        if v4.netmask:
+            lines.append('    netmask %s' % v4.netmask)
+
+        # Add the primary gateway
+        if nic.primary and v4.gateways:
+            self.ipv4PrimaryGateway = v4.gateways[0]
+            lines.append('    gateway %s metric 0' % self.ipv4PrimaryGateway)
+            return lines
+
+        # Add routes if there is no primary nic
+        if not self._primaryNic:
+            lines.extend(self.gen_ipv4_route(nic, v4.gateways))
+
+        return lines
+
+    def gen_ipv4_route(self, nic, gateways):
+        """
+        Return the lines needed to configure additional Ipv4 route
+        @return (str list): the string list to configure the gateways
+        @param nic (NicBase): the nic to configure
+        @param gateways (str list): the list of gateways
+        """
+        lines = []
+
+        for gateway in gateways:
+            lines.append('    up route add default gw %s metric 10000' %
+                         gateway)
+
+        return lines
+
+    def gen_ipv6(self, name, nic):
+        """
+        Return the lines needed to configure the gateways for a nic
+        @return (str list): the string list to configure the gateways
+        @param name (str): name of the nic
+        @param nic (NicBase): the nic to configure
+        """
+        lines = []
+
+        if not nic.staticIpv6:
+            return lines
+
+        # Static Ipv6
+        addrs = nic.staticIpv6
+        lines.append('iface %s inet6 static' % name)
+        lines.append('    address %s' % addrs[0].ip)
+        lines.append('    netmask %s' % addrs[0].netmask)
+
+        for addr in addrs[1:]:
+            lines.append('    up ifconfig %s inet6 add %s/%s' % (name, addr.ip,
+                                                                 addr.netmask))
+        # Add the primary gateway
+        if nic.primary:
+            for addr in addrs:
+                if addr.gateway:
+                    self.ipv6PrimaryGateway = addr.gateway
+                    lines.append('    gateway %s' % self.ipv6PrimaryGateway)
+                    return lines
+
+        # Add routes if there is no primary nic
+        if not self._primaryNic:
+            lines.extend(self._genIpv6Route(name, nic, addrs))
+
+        return lines
+
+    def _genIpv6Route(self, name, nic, addrs):
+        lines = []
+
+        for addr in addrs:
+            lines.append('    up route -A inet6 add default gw %s metric 10000' %
+                         addr.gateway)
+
+        return lines
+
+    def generate(self):
+        """Return the lines that is needed to configure the nics"""
+        lines = []
+        lines.append('iface lo inet loopback')
+        lines.append('auto lo')
+        lines.append('')
+
+        for nic in self.nics:
+            lines.extend(self.gen_one_nic(nic))
+
+        return lines
+
+    def clear_dhcp(self):
+        logger.info('Clearing DHCP leases')
+
+        util.subp(["pkill", "dhclient"])
+        util.subp(["rm", "-f", "/var/lib/dhcp/*"])
+
+    def if_down_up(self):
+        names = []
+        for nic in self.nics:
+            name = self.mac2Name.get(nic.mac.lower())
+            names.append(name)
+
+        for name in names:
+            logger.info('Bring down interface %s' % name)
+            util.subp(["ifdown", "%s" % name])
+
+        self.clear_dhcp()
+
+        for name in names:
+            logger.info('Bring up interface %s' % name)
+            util.subp(["ifup", "%s" % name])
+
+    def configure(self):
+        """
+        Configure the /etc/network/intefaces
+        Make a back up of the original
+        """
+        containingDir = '/etc/network'
+
+        interfaceFile = os.path.join(containingDir, 'interfaces')
+        originalFile = os.path.join(containingDir,
+                                    'interfaces.before_vmware_customization')
+
+        if not os.path.exists(originalFile) and os.path.exists(interfaceFile):
+            os.rename(interfaceFile, originalFile)
+
+        lines = self.generate()
+        with open(interfaceFile, 'w') as fp:
+            for line in lines:
+                fp.write('%s\n' % line)
+
+        self.if_down_up()
diff --git a/cloudinit/sources/helpers/vmware/imc/config_source.py b/cloudinit/sources/helpers/vmware/imc/config_source.py
new file mode 100644
index 00000000..a367e476
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/config_source.py
@@ -0,0 +1,23 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class ConfigSource:
+    """Specifies a source for the Config Content."""
+    pass
diff --git a/cloudinit/sources/helpers/vmware/imc/ipv4_mode.py b/cloudinit/sources/helpers/vmware/imc/ipv4_mode.py
new file mode 100644
index 00000000..33f88726
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/ipv4_mode.py
@@ -0,0 +1,45 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class Ipv4ModeEnum:
+    """
+    The IPv4 configuration mode which directly represents the user's goal.
+
+    This mode effectively acts as a contract of the in-guest customization
+    engine. It must be set based on what the user has requested and should
+    not be changed by those layers. It's up to the in-guest engine to
+    interpret and materialize the user's request.
+    """
+
+    # The legacy mode which only allows dhcp/static based on whether IPv4
+    # addresses list is empty or not
+    IPV4_MODE_BACKWARDS_COMPATIBLE = 'BACKWARDS_COMPATIBLE'
+
+    # IPv4 must use static address. Reserved for future use
+    IPV4_MODE_STATIC = 'STATIC'
+
+    # IPv4 must use DHCPv4. Reserved for future use
+    IPV4_MODE_DHCP = 'DHCP'
+
+    # IPv4 must be disabled
+    IPV4_MODE_DISABLED = 'DISABLED'
+
+    # IPv4 settings should be left untouched. Reserved for future use
+    IPV4_MODE_AS_IS = 'AS_IS'
diff --git a/cloudinit/sources/helpers/vmware/imc/nic.py b/cloudinit/sources/helpers/vmware/imc/nic.py
new file mode 100644
index 00000000..b5d704ea
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/nic.py
@@ -0,0 +1,147 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from .boot_proto import BootProtoEnum
+from .nic_base import NicBase, StaticIpv4Base, StaticIpv6Base
+
+
+class Nic(NicBase):
+    """
+    Holds the information about each NIC specified
+    in the customization specification file
+    """
+
+    def __init__(self, name, configFile):
+        self._name = name
+        self._configFile = configFile
+
+    def _get(self, what):
+        return self._configFile.get(self.name + '|' + what, None)
+
+    def _get_count_with_prefix(self, prefix):
+        return self._configFile.get_count_with_prefix(self.name + prefix)
+
+    @property
+    def name(self):
+        return self._name
+
+    @property
+    def mac(self):
+        return self._get('MACADDR').lower()
+
+    @property
+    def primary(self):
+        value = self._get('PRIMARY')
+        if value:
+            value = value.lower()
+            return value == 'yes' or value == 'true'
+        else:
+            return False
+
+    @property
+    def onboot(self):
+        value = self._get('ONBOOT')
+        if value:
+            value = value.lower()
+            return value == 'yes' or value == 'true'
+        else:
+            return False
+
+    @property
+    def bootProto(self):
+        value = self._get('BOOTPROTO')
+        if value:
+            return value.lower()
+        else:
+            return ""
+
+    @property
+    def ipv4_mode(self):
+        value = self._get('IPv4_MODE')
+        if value:
+            return value.lower()
+        else:
+            return ""
+
+    @property
+    def staticIpv4(self):
+        """
+        Checks the BOOTPROTO property and returns StaticIPv4Addr
+        configuration object if STATIC configuration is set.
+        """
+        if self.bootProto == BootProtoEnum.STATIC:
+            return [StaticIpv4Addr(self)]
+        else:
+            return None
+
+    @property
+    def staticIpv6(self):
+        cnt = self._get_count_with_prefix('|IPv6ADDR|')
+
+        if not cnt:
+            return None
+
+        result = []
+        for index in range(1, cnt + 1):
+            result.append(StaticIpv6Addr(self, index))
+
+        return result
+
+
+class StaticIpv4Addr(StaticIpv4Base):
+    """Static IPV4  Setting."""
+
+    def __init__(self, nic):
+        self._nic = nic
+
+    @property
+    def ip(self):
+        return self._nic._get('IPADDR')
+
+    @property
+    def netmask(self):
+        return self._nic._get('NETMASK')
+
+    @property
+    def gateways(self):
+        value = self._nic._get('GATEWAY')
+        if value:
+            return [x.strip() for x in value.split(',')]
+        else:
+            return None
+
+
+class StaticIpv6Addr(StaticIpv6Base):
+    """Static IPV6 Address."""
+
+    def __init__(self, nic, index):
+        self._nic = nic
+        self._index = index
+
+    @property
+    def ip(self):
+        return self._nic._get('IPv6ADDR|' + str(self._index))
+
+    @property
+    def netmask(self):
+        return self._nic._get('IPv6NETMASK|' + str(self._index))
+
+    @property
+    def gateway(self):
+        return self._nic._get('IPv6GATEWAY|' + str(self._index))
diff --git a/cloudinit/sources/helpers/vmware/imc/nic_base.py b/cloudinit/sources/helpers/vmware/imc/nic_base.py
new file mode 100644
index 00000000..030ba311
--- /dev/null
+++ b/cloudinit/sources/helpers/vmware/imc/nic_base.py
@@ -0,0 +1,154 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2015 Canonical Ltd.
+#    Copyright (C) 2015 VMware Inc.
+#
+#    Author: Sankar Tanguturi <stanguturi@vmware.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class NicBase:
+    """
+    Define what are expected of each nic.
+    The following properties should be provided in an implementation class.
+    """
+
+    @property
+    def mac(self):
+        """
+        Retrieves the mac address of the nic
+        @return (str) : the MACADDR setting
+        """
+        raise NotImplementedError('MACADDR')
+
+    @property
+    def primary(self):
+        """
+        Retrieves whether the nic is the primary nic
+        Indicates whether NIC will be used to define the default gateway.
+        If none of the NICs is configured to be primary, default gateway won't
+        be set.
+        @return (bool): the PRIMARY setting
+        """
+        raise NotImplementedError('PRIMARY')
+
+    @property
+    def onboot(self):
+        """
+        Retrieves whether the nic should be up at the boot time
+        @return (bool) : the ONBOOT setting
+        """
+        raise NotImplementedError('ONBOOT')
+
+    @property
+    def bootProto(self):
+        """
+        Retrieves the boot protocol of the nic
+        @return (str): the BOOTPROTO setting, valid values: dhcp and static.
+        """
+        raise NotImplementedError('BOOTPROTO')
+
+    @property
+    def ipv4_mode(self):
+        """
+        Retrieves the IPv4_MODE
+        @return (str): the IPv4_MODE setting, valid values:
+        backwards_compatible, static, dhcp, disabled, as_is
+        """
+        raise NotImplementedError('IPv4_MODE')
+
+    @property
+    def staticIpv4(self):
+        """
+        Retrieves the static IPv4 configuration of the nic
+        @return (StaticIpv4Base list): the static ipv4 setting
+        """
+        raise NotImplementedError('Static IPv4')
+
+    @property
+    def staticIpv6(self):
+        """
+        Retrieves the IPv6 configuration of the nic
+        @return (StaticIpv6Base list): the static ipv6 setting
+        """
+        raise NotImplementedError('Static Ipv6')
+
+    def validate(self):
+        """
+        Validate the object
+        For example, the staticIpv4 property is required and should not be
+        empty when ipv4Mode is STATIC
+        """
+        raise NotImplementedError('Check constraints on properties')
+
+
+class StaticIpv4Base:
+    """
+    Define what are expected of a static IPv4 setting
+    The following properties should be provided in an implementation class.
+    """
+
+    @property
+    def ip(self):
+        """
+        Retrieves the Ipv4 address
+        @return (str): the IPADDR setting
+        """
+        raise NotImplementedError('Ipv4 Address')
+
+    @property
+    def netmask(self):
+        """
+        Retrieves the Ipv4 NETMASK setting
+        @return (str): the NETMASK setting
+        """
+        raise NotImplementedError('Ipv4 NETMASK')
+
+    @property
+    def gateways(self):
+        """
+        Retrieves the gateways on this Ipv4 subnet
+        @return (str list): the GATEWAY setting
+        """
+        raise NotImplementedError('Ipv4 GATEWAY')
+
+
+class StaticIpv6Base:
+    """Define what are expected of a static IPv6 setting
+    The following properties should be provided in an implementation class.
+    """
+
+    @property
+    def ip(self):
+        """
+        Retrieves the Ipv6 address
+        @return (str): the IPv6ADDR setting
+        """
+        raise NotImplementedError('Ipv6 Address')
+
+    @property
+    def netmask(self):
+        """
+        Retrieves the Ipv6 NETMASK setting
+        @return (str): the IPv6NETMASK setting
+        """
+        raise NotImplementedError('Ipv6 NETMASK')
+
+    @property
+    def gateway(self):
+        """
+        Retrieves the Ipv6 GATEWAY setting
+        @return (str): the IPv6GATEWAY setting
+        """
+        raise NotImplementedError('Ipv6 GATEWAY')