diff --git a/contrib/inventory/packet_net.ini b/contrib/inventory/packet_net.ini
new file mode 100644
index 0000000000..a9598b0d4b
--- /dev/null
+++ b/contrib/inventory/packet_net.ini
@@ -0,0 +1,52 @@
+# Ansible Packet.net external inventory script settings
+#
+
+[packet]
+
+# Packet projects to get info for. Set this to 'all' to get info for all
+# projects in Packet and merge the results together. Alternatively, set 
+# this to a comma separated list of projects. E.g. 'project-1,project-3,project-4'
+projects = all
+projects_exclude = 
+
+# By default, packet devices in all state are returned. Specify
+# packet device states to return as a comma-separated list.
+# device_states = active, inactive, queued, provisioning
+
+# items per page to retrieve from packet api at a time
+items_per_page = 999
+
+# API calls to Packet are costly. For this reason, we cache the results of an API
+# call. Set this to the path you want cache files to be written to. Two files
+# will be written to this directory:
+#   - ansible-packet.cache
+#   - ansible-packet.index
+cache_path = ~/.ansible/tmp
+
+# The number of seconds a cache file is considered valid. After this many
+# seconds, a new API call will be made, and the cache file will be updated.
+# To disable the cache, set this value to 0
+cache_max_age = 300
+
+# Organize groups into a nested/hierarchy instead of a flat namespace.
+nested_groups = False
+
+# Replace - tags when creating groups to avoid issues with ansible
+replace_dash_in_groups = True
+
+# The packet inventory output can become very large. To manage its size,
+# configure which groups should be created.
+group_by_device_id = True
+group_by_facility = True
+group_by_project = True
+group_by_operating_system = True
+group_by_plan_type = True
+group_by_tags = True
+group_by_tag_none = True
+
+# If you only want to include hosts that match a certain regular expression
+# pattern_include = staging-*
+
+# If you want to exclude any hosts that match a certain regular expression
+# pattern_exclude = staging-*
+
diff --git a/contrib/inventory/packet_net.py b/contrib/inventory/packet_net.py
new file mode 100755
index 0000000000..e6270557e9
--- /dev/null
+++ b/contrib/inventory/packet_net.py
@@ -0,0 +1,498 @@
+#!/usr/bin/env python
+
+'''
+Packet.net external inventory script
+=================================
+
+Generates inventory that Ansible can understand by making API request to
+Packet.net using the Packet library.
+
+NOTE: This script assumes Ansible is being executed where the environment
+variable needed for Packet API Token already been set:
+    export PACKET_API_TOKEN=Bfse9F24SFtfs423Gsd3ifGsd43sSdfs
+
+This script also assumes there is a packet_net.ini file alongside it.  To specify a
+different path to packet_net.ini, define the PACKET_NET_INI_PATH environment variable:
+
+    export PACKET_NET_INI_PATH=/path/to/my_packet_net.ini
+
+'''
+
+# (c) 2016, Peter Sankauskas
+# (c) 2017, Tomas Karasek
+#
+# This file is part of Ansible,
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible 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 Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+######################################################################
+
+import sys
+import os
+import argparse
+import re
+from time import time
+import six
+
+from six.moves import configparser
+
+try:
+    import packet
+except ImportError as e:
+    sys.exit("failed=True msg='`packet-python` library required for this script'")
+
+import traceback
+
+
+try:
+    import json
+except ImportError:
+    import simplejson as json
+
+
+ini_section = 'packet'
+
+class PacketInventory(object):
+
+    def _empty_inventory(self):
+        return {"_meta" : {"hostvars" : {}}}
+
+    def __init__(self):
+        ''' Main execution path '''
+
+        # Inventory grouped by device IDs, tags, security groups, regions,
+        # and availability zones
+        self.inventory = self._empty_inventory()
+
+        # Index of hostname (address) to device ID
+        self.index = {}
+
+        # Read settings and parse CLI arguments
+        self.parse_cli_args()
+        self.read_settings()
+
+        # Cache
+        if self.args.refresh_cache:
+            self.do_api_calls_update_cache()
+        elif not self.is_cache_valid():
+            self.do_api_calls_update_cache()
+
+        # Data to print
+        if self.args.host:
+            data_to_print = self.get_host_info()
+
+        elif self.args.list:
+            # Display list of devices for inventory
+            if self.inventory == self._empty_inventory():
+                data_to_print = self.get_inventory_from_cache()
+            else:
+                data_to_print = self.json_format_dict(self.inventory, True)
+
+        print(data_to_print)
+
+
+    def is_cache_valid(self):
+        ''' Determines if the cache files have expired, or if it is still valid '''
+
+        if os.path.isfile(self.cache_path_cache):
+            mod_time = os.path.getmtime(self.cache_path_cache)
+            current_time = time()
+            if (mod_time + self.cache_max_age) > current_time:
+                if os.path.isfile(self.cache_path_index):
+                    return True
+
+        return False
+
+    def read_settings(self):
+        ''' Reads the settings from the packet_net.ini file '''
+        if six.PY3:
+            config = configparser.ConfigParser()
+        else:
+            config = configparser.SafeConfigParser()
+
+        _ini_path_raw = os.environ.get('PACKET_NET_INI_PATH')
+
+        if _ini_path_raw:
+            packet_ini_path = os.path.expanduser(os.path.expandvars(_ini_path_raw))
+        else:
+            packet_ini_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'packet_net.ini')
+        config.read(packet_ini_path)
+
+        # items per page
+        self.items_per_page = 999
+        if config.has_option(ini_section, 'items_per_page'):
+            config.get(ini_section, 'items_per_page')
+
+        # Instance states to be gathered in inventory. Default is all of them.
+        packet_valid_device_states = [
+            'active',
+            'inactive',
+            'queued',
+            'provisioning'
+        ]
+        self.packet_device_states = []
+        if config.has_option(ini_section, 'device_states'):
+          for device_state in config.get(ini_section, 'device_states').split(','):
+            device_state = device_state.strip()
+            if device_state not in packet_valid_device_states:
+              continue
+            self.packet_device_states.append(device_state)
+        else:
+          self.packet_device_states = packet_valid_device_states
+
+        # Cache related
+        cache_dir = os.path.expanduser(config.get(ini_section, 'cache_path'))
+        if not os.path.exists(cache_dir):
+            os.makedirs(cache_dir)
+
+        self.cache_path_cache = cache_dir + "/ansible-packet.cache"
+        self.cache_path_index = cache_dir + "/ansible-packet.index"
+        self.cache_max_age = config.getint(ini_section, 'cache_max_age')
+
+        # Configure nested groups instead of flat namespace.
+        if config.has_option(ini_section, 'nested_groups'):
+            self.nested_groups = config.getboolean(ini_section, 'nested_groups')
+        else:
+            self.nested_groups = False
+
+        # Replace dash or not in group names
+        if config.has_option(ini_section, 'replace_dash_in_groups'):
+            self.replace_dash_in_groups = config.getboolean(ini_section, 'replace_dash_in_groups')
+        else:
+            self.replace_dash_in_groups = True
+
+        # Configure which groups should be created.
+        group_by_options = [
+            'group_by_device_id',
+            'group_by_facility',
+            'group_by_project',
+            'group_by_operating_system',
+            'group_by_plan_type',
+            'group_by_tags',
+            'group_by_tag_none',
+        ]
+        for option in group_by_options:
+            if config.has_option(ini_section, option):
+                setattr(self, option, config.getboolean(ini_section, option))
+            else:
+                setattr(self, option, True)
+
+        # Do we need to just include hosts that match a pattern?
+        try:
+            pattern_include = config.get(ini_section, 'pattern_include')
+            if pattern_include and len(pattern_include) > 0:
+                self.pattern_include = re.compile(pattern_include)
+            else:
+                self.pattern_include = None
+        except configparser.NoOptionError:
+            self.pattern_include = None
+
+        # Do we need to exclude hosts that match a pattern?
+        try:
+            pattern_exclude = config.get(ini_section, 'pattern_exclude');
+            if pattern_exclude and len(pattern_exclude) > 0:
+                self.pattern_exclude = re.compile(pattern_exclude)
+            else:
+                self.pattern_exclude = None
+        except configparser.NoOptionError:
+            self.pattern_exclude = None
+
+        # Projects
+        self.projects = []
+        configProjects = config.get(ini_section, 'projects')
+        configProjects_exclude = config.get(ini_section, 'projects_exclude')
+        if (configProjects == 'all'):
+            for projectInfo in self.get_projects():
+                if projectInfo.name not in configProjects_exclude:
+                    self.projects.append(projectInfo.name)
+        else:
+            self.projects = configProjects.split(",")
+
+    def parse_cli_args(self):
+        ''' Command line argument processing '''
+
+        parser = argparse.ArgumentParser(description='Produce an Ansible Inventory file based on Packet')
+        parser.add_argument('--list', action='store_true', default=True,
+                           help='List Devices (default: True)')
+        parser.add_argument('--host', action='store',
+                           help='Get all the variables about a specific device')
+        parser.add_argument('--refresh-cache', action='store_true', default=False,
+                           help='Force refresh of cache by making API requests to Packet (default: False - use cache files)')
+        self.args = parser.parse_args()
+
+
+    def do_api_calls_update_cache(self):
+        ''' Do API calls to each region, and save data in cache files '''
+
+        for projectInfo in self.get_projects():
+            if projectInfo.name in self.projects:
+                self.get_devices_by_project(projectInfo)
+
+        self.write_to_cache(self.inventory, self.cache_path_cache)
+        self.write_to_cache(self.index, self.cache_path_index)
+
+    def connect(self):
+        ''' create connection to api server'''
+        token=os.environ.get('PACKET_API_TOKEN')
+        if token is None:
+            raise Exception("Error reading token from environment (PACKET_API_TOKEN)!")
+        manager = packet.Manager(auth_token=token)
+        return manager
+
+    def get_projects(self):
+        '''Makes a Packet API call to get the list of projects'''
+        try:
+            manager = self.connect()
+            projects = manager.list_projects()
+            return projects
+        except Exception as e:
+            traceback.print_exc()
+            self.fail_with_error(e, 'getting Packet projects')
+
+    def get_devices_by_project(self, project):
+        ''' Makes an Packet API call to the list of devices in a particular
+        project '''
+
+        params = {
+            'per_page': self.items_per_page
+        }
+
+        try:
+            manager = self.connect()
+            devices = manager.list_devices(project_id=project.id, params = params)
+
+            for device in devices:
+                self.add_device(device, project)
+
+        except Exception as e:
+            traceback.print_exc()
+            self.fail_with_error(e, 'getting Packet devices')
+
+    def fail_with_error(self, err_msg, err_operation=None):
+        '''log an error to std err for ansible-playbook to consume and exit'''
+        if err_operation:
+            err_msg = 'ERROR: "{err_msg}", while: {err_operation}\n'.format(
+                err_msg=err_msg, err_operation=err_operation)
+        sys.stderr.write(err_msg)
+        sys.exit(1)
+
+    def get_device(self, device_id):
+        manager = self.connect()
+
+        device = manager.get_device(device_id)
+        return device
+
+    def add_device(self, device, project):
+        ''' Adds a device to the inventory and index, as long as it is
+        addressable '''
+
+        # Only return devices with desired device states
+        if device.state not in self.packet_device_states:
+            return
+
+        # Select the best destination address
+        dest = None
+        for ip_address in device.ip_addresses:
+            if ip_address['public'] == True and ip_address['address_family'] == 4:
+                dest = ip_address['address']
+
+
+        if not dest:
+            # Skip devices we cannot address (e.g. private VPC subnet)
+            return
+
+        # if we only want to include hosts that match a pattern, skip those that don't
+        if self.pattern_include and not self.pattern_include.match(device.hostname):
+            return
+
+        # if we need to exclude hosts that match a pattern, skip those
+        if self.pattern_exclude and self.pattern_exclude.match(device.hostname):
+            return
+
+        # Add to index
+        self.index[dest] = [project.id, device.id]
+
+        # Inventory: Group by device ID (always a group of 1)
+        if self.group_by_device_id:
+            self.inventory[device.id] = [dest]
+            if self.nested_groups:
+                self.push_group(self.inventory, 'devices', device.id)
+
+        # Inventory: Group by project
+        if self.group_by_project:
+            self.push(self.inventory, project.name, dest)
+            if self.nested_groups:
+                self.push_group(self.inventory, 'projects', project.name)
+
+        # Inventory: Group by facility
+        if self.group_by_facility:
+            self.push(self.inventory, device.facility['code'], dest)
+            if self.nested_groups:
+                if self.group_by_facility:
+                    self.push_group(self.inventory, project.name, device.facility['code'])
+
+        # Inventory: Group by OS
+        if self.group_by_operating_system:
+            self.push(self.inventory, device.operating_system.slug, dest)
+            if self.nested_groups:
+                self.push_group(self.inventory, 'operating_systems', device.operating_system.slug)
+
+        # Inventory: Group by plan type
+        if self.group_by_plan_type:
+            self.push(self.inventory, device.plan['slug'], dest)
+            if self.nested_groups:
+                self.push_group(self.inventory, 'plans', device.plan['slug'])
+
+        # Inventory: Group by tag keys
+        if self.group_by_tags:
+            for k in device.tags:
+                key = self.to_safe("tag_" + k)
+                self.push(self.inventory, key, dest)
+                if self.nested_groups:
+                    self.push_group(self.inventory, 'tags', self.to_safe("tag_" + k))
+
+        # Global Tag: devices without tags
+        if self.group_by_tag_none and len(device.tags) == 0:
+            self.push(self.inventory, 'tag_none', dest)
+            if self.nested_groups:
+                self.push_group(self.inventory, 'tags', 'tag_none')
+
+        # Global Tag: tag all Packet devices
+        self.push(self.inventory, 'packet', dest)
+
+        self.inventory["_meta"]["hostvars"][dest] = self.get_host_info_dict_from_device(device)
+
+
+    def get_host_info_dict_from_device(self, device):
+        device_vars = {}
+        for key in vars(device):
+            value = getattr(device, key)
+            key = self.to_safe('packet_' + key)
+
+            # Handle complex types
+            if key == 'packet_state':
+                device_vars[key] = device.state or ''
+            elif key == 'packet_hostname':
+                device_vars[key] = value
+            elif type(value) in [int, bool]:
+                device_vars[key] = value
+            elif isinstance(value, six.string_types):
+                device_vars[key] = value.strip()
+            elif type(value) == type(None):
+                device_vars[key] = ''
+            elif key == 'packet_facility':
+                device_vars[key] = value['code']
+            elif key == 'packet_operating_system':
+                device_vars[key] = value.slug
+            elif key == 'packet_plan':
+                device_vars[key] = value['slug']
+            elif key == 'packet_tags':
+                for k in value:
+                    key = self.to_safe('packet_tag_' + k)
+                    device_vars[key] = k
+            else:
+                pass
+                #print key
+                #print type(value)
+                #print value
+
+        return device_vars
+
+    def get_host_info(self):
+        ''' Get variables about a specific host '''
+
+        if len(self.index) == 0:
+            # Need to load index from cache
+            self.load_index_from_cache()
+
+        if not self.args.host in self.index:
+            # try updating the cache
+            self.do_api_calls_update_cache()
+            if not self.args.host in self.index:
+                # host might not exist anymore
+                return self.json_format_dict({}, True)
+
+        (project_id, device_id) = self.index[self.args.host]
+
+        device = self.get_device(device_id)
+        return self.json_format_dict(self.get_host_info_dict_from_device(device), True)
+
+    def push(self, my_dict, key, element):
+        ''' Push an element onto an array that may not have been defined in
+        the dict '''
+        group_info = my_dict.setdefault(key, [])
+        if isinstance(group_info, dict):
+            host_list = group_info.setdefault('hosts', [])
+            host_list.append(element)
+        else:
+            group_info.append(element)
+
+    def push_group(self, my_dict, key, element):
+        ''' Push a group as a child of another group. '''
+        parent_group = my_dict.setdefault(key, {})
+        if not isinstance(parent_group, dict):
+            parent_group = my_dict[key] = {'hosts': parent_group}
+        child_groups = parent_group.setdefault('children', [])
+        if element not in child_groups:
+            child_groups.append(element)
+
+    def get_inventory_from_cache(self):
+        ''' Reads the inventory from the cache file and returns it as a JSON
+        object '''
+
+        cache = open(self.cache_path_cache, 'r')
+        json_inventory = cache.read()
+        return json_inventory
+
+
+    def load_index_from_cache(self):
+        ''' Reads the index from the cache file sets self.index '''
+
+        cache = open(self.cache_path_index, 'r')
+        json_index = cache.read()
+        self.index = json.loads(json_index)
+
+
+    def write_to_cache(self, data, filename):
+        ''' Writes data in JSON format to a file '''
+
+        json_data = self.json_format_dict(data, True)
+        cache = open(filename, 'w')
+        cache.write(json_data)
+        cache.close()
+
+    def uncammelize(self, key):
+        temp = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', key)
+        return re.sub('([a-z0-9])([A-Z])', r'\1_\2', temp).lower()
+
+    def to_safe(self, word):
+        ''' Converts 'bad' characters in a string to underscores so they can be used as Ansible groups '''
+        regex = "[^A-Za-z0-9\_"
+        if not self.replace_dash_in_groups:
+            regex += "\-"
+        return re.sub(regex + "]", "_", word)
+
+    def json_format_dict(self, data, pretty=False):
+        ''' Converts a dict to a JSON object and dumps it as a formatted
+        string '''
+
+        if pretty:
+            return json.dumps(data, sort_keys=True, indent=2)
+        else:
+            return json.dumps(data)
+
+
+# Run the script
+PacketInventory()
+