PyNSXv is a high level python based library that exposes ready to use work-flows and a CLI tool that can be used to control VMware NSX for vSphere
PyNSXv can be used in two different ways, as a library by importing the files in the /library subdirectory into your code, or as a CLI tool by executing pynsxvon the command line after installation. To install PyNSXv you can use PIP on your system
[Using PyNSXv as a CLI Tool](#Using PyNSXv as a CLI Tool)
[Using PyNSXv as a Python Library](#Using PyNSXv as a Python Library)
Dependencies
[Installing PyNSXv](#Installing PyNSXv)
Contributing
License
After you installed PyNSXv, the first thing you have to do is to create your a ini file that contains the host names and credentials of your vCenter and NSX Manager.
If you have multiple NSX environments, you can create multiple ini files and reference to them using the -i command line option. By default PyNSXv will look for a file called nsx.ini in the path your are running the pynsxv command in.
The ini file has the following format:
# [nsxraml]
# nsxraml_file = <>
# Uncomment the above section and add the path to the raml spec you want to use instead of the bundled version
[nsxv]
nsx_manager = <nsx_manager_IP>
nsx_username = admin
nsx_password = <nsx_manager_password>
[vcenter]
vcenter = <VC_IP_or_Hostname>
vcenter_user = [email protected]
vcenter_passwd = <vc_password>
[defaults]
transport_zone = <transport_zone_name>
datacenter_name = <vcenter datacenter name>
edge_datastore = <datastore name to deploy edges in>
edge_cluster = <vcenter cluster for edge gateways>After placing the nsx.ini file in you path, you can run pynsxv from your shell or cmd prompt. On Linux and Mac simply use pynsxv followed by the subcommand. On Windows you will need to type pynsxv.exe followed by the subcommand:
▶ pynsxv -h
usage: pynsxv [-h] [-i INI] [-v] [-d] {lswitch,dlr,esg,dhcp,dfw,usage} ...
PyNSXv Command Line Client for NSX for vSphere
positional arguments:
{lswitch,dlr,esg,dhcp,dfw,usage}
lswitch Functions for logical switches
dlr Functions for distributed logical routers
esg Functions for edge services gateways
dhcp Functions for Edge DHCP
dfw Functions for distributed firewall
usage Functions to retrieve NSX-v usage statistics
optional arguments:
-h, --help show this help message and exit
-i INI, --ini INI nsx configuration file
-v, --verbose increase output verbosity
-d, --debug print low level debug of http transactions
Here is an example output using the lswitch subcommand:
▶ pynsxv lswitch list
+---------------------+----------------+
| LS name | LS ID |
|---------------------+----------------|
| edge_ls | virtualwire-63 |
| dlr_ls | virtualwire-64 |
+---------------------+----------------+
Each subcommand has its own set of subcommands, as well as arguments.
You can see what is available by using -h after the first subcommand:
▶ pynsxv lswitch -h
usage: cli.py lswitch [-h] [-t TRANSPORT_ZONE] [-n NAME] command
Functions for logical switches
positional arguments:
command
create: create a new logical switch
read: return the virtual wire id of a logical switch
delete: delete a logical switch"
list: return a list of all logical switches
optional arguments:
-h, --help show this help message and exit
-t TRANSPORT_ZONE, --transport_zone TRANSPORT_ZONE
nsx transport zone
-n NAME, --name NAME logical switch name, needed for create, read and delete
You can also use the -v switch of the main pynsxv command to switch to a json formated output for use with shell scripts
#Using PyNSXv as a Python Library
When using PyNSXv as a Python library you can either download the individual modules in /library of this repo and import them in your code, or you can install PyNSXv and import the modules from your python path for pip installed modules.
To use the modules you will also need to have at least the nsxramlclient installed (https://github.com/vmware/nsxramlclient).
You will also need a copy of the latest RAML API Spec of NSX for vSphere (https://github.com/vmware/nsxraml).
Import the module you want to use, as well as the NsxClient Class of the nsxramlclient.
Then instantiate a session object of the NsxClient Class, and pass this session object to the function you want to use out of the module imported from PyNSXv. Here's an example:
▶ ipython
Python 2.7.11 (default, Jun 17 2016, 20:01:51)
Type "copyright", "credits" or "license" for more information.
IPython 4.2.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
In [1]: from pynsxv.library.nsx_logical_switch import logical_switch_list,logical_switch_create
In [2]: from nsxramlclient.client import NsxClient
In [3]: nsxraml_file = '/raml/nsxraml/nsxvapi.raml'
In [4]: nsxmanager = 'nsxmanager.invalid.org'
In [5]: nsx_username = 'admin'
In [6]: nsx_password = 'vmware'
In [7]: client_session = NsxClient(nsxraml_file, nsxmanager, nsx_username, nsx_password)
In [8]: lswitch_list = logical_switch_list(client_session)
In [9]: lswitch_list
Out[9]:
([('k8s-dlr-plr-transit', 'virtualwire-39'),
('k8s-minion-1', 'virtualwire-40'),
('k8s-minion-2', 'virtualwire-41'),
('vic-external', 'virtualwire-51'),
('vic-container-net1', 'virtualwire-52'),
('edge_ls', 'virtualwire-63'),
('dlr_ls', 'virtualwire-64')],
[{'clientHandle': None,
'controlPlaneMode': 'HYBRID_MODE',
'ctrlLsUuid': 'e0c72e20-f39e-41ba-adb4-f0b191521c0c',
'description': None,
'extendedAttributes': None,
'guestVlanAllowed': 'false',
'isUniversal': 'false',
.... Output truncated ....
In [10]: new_lswitch = logical_switch_create(client_session, 'TZ1', 'new_lswitch_name')
In [11]: new_lswitch
Out[12]: ('virtualwire-65', '/api/2.0/vdn/virtualwires/virtualwire-65')
All module function have inline documentation available to guide you through the needed parameters:
In [1]: help(logical_switch_list)
logical_switch_list(client_session)
This function returns all logical switches found in NSX
:param client_session: An instance of an NsxClient Session
:return: returns a tuple, the first item is a list of tuples with item 0 containing the LS Name as string
and item 1 containing the LS id as string. The second item contains a list of dictionaries containing
all logical switch details
#Dependencies PyNSXv has the following dependencies:
- pyvmomi (https://github.com/vmware/pyvmomi)
- nsxramlclient (https://github.com/vmware/nsxramlclient)
- tabulate (https://bitbucket.org/astanin/python-tabulate)
Please check the installation instructions of these projects if you run into installation issues
PyNSXv can be installed using pip:
pip install pynsxv[Installing PyNSXv on Ubuntu](#Installing PyNSXv on Ubuntu)
[Installing PyNSXv on a MAC](#Installing PyNSXv on a MAC)
[Installing PyNSXv on Windows](#Installing PyNSXv on Windows)
[Various caveats](#Various caveats)
First update/upgrade using apt and install the python-openssl, libxml and libxslt dependencies of the nsxramclient using apt. Please also consult the Github page of the nsxramclient and pyvmomi in case you run into issues during the installation of these dependencies.
apt-get update && apt-get upgrade -y
apt-get install libssl-dev libffi-dev libxml2-dev libxslt-dev python-dev zlib1g-dev python-pip -yAfter this you can simply install PyNSXv using pip:
sudo pip install pynsxvMake sure to install XCODE and its Command Line utilities: https://itunes.apple.com/app/xcode/id497799835?mt=12
xcode-select --installIf not yet present on your system, install python pip. The instructions on how to do so can be found here: https://pip.pypa.io/en/latest/installing/#install-or-upgrade-pip
curl https://bootstrap.pypa.io/get-pip.py > get-pip.py
sudo python get-pip.pyIf you don't have it yet, install homebrew on your system: http://brew.sh
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"Now install some of the xml formating dependencies needed by PyNSXv and the underlying nsxramlclient
brew install libxml2
brew install libxslt
brew link libxml2 --force
brew link libxslt --forceFinaly we are ready to install PyNSXv using pip:
sudo pip install pynsxvNOTE: OSX 10.11 El Capitan introduces problems due to an outdated dependency six. Due to OSX's new System Integrity Protection (SIP) pip cannot remove the outdated version and install the needed one:
http://apple.stackexchange.com/questions/209572/how-to-use-pip-after-the-os-x-el-capitan-upgrade/210021#210021
http://stackoverflow.com/questions/31900008/oserror-errno-1-operation-not-permitted-when-installing-scrapy-in-osx-10-11
If you run into this error:
OSError: [Errno 1] Operation not permitted: '/tmp/pip-nIfswi-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six-1.4.1-py2.7.egg-info'
You should install a new non-bundled python version:
brew install python
sudo pip uninstall pynsxv
sudo pip uninstall six
sudo pip uninstall PyYAML
sudo pip uninstall pyraml-parser
sudo pip uninstall nsxramlclient
pip install pyopenssl
pip install pynsxvInstall python 2.x on your Windows (https://www.python.org/downloads/). Note: Attention do NOT install python 3.x.
Add python installation folder in the Windows path to be able to run the pynsxv CLI from any folder (Under "Control Panel – Environment Variables", edit the System Variable "Path", and add the "Python27\Scripts" folder).
Install of pynsxv.
C:\>pip install pynsxv
You can find more details in the /docs folder Windows Installation Details
Should you see this warning message:
UserWarning: /home/vagrant/.python-eggs is writable by group/others and vulnerable to attack when used with get_resource_filename. Consider a more secure location (set with .set_extraction_path or the PYTHON_EGG_CACHE environment variable).
You can solve this by changing the permissions of the .python-eggs folder:
chmod g-wx,o-wx ~/.python-eggsEveryone is more than welcome to contribute to PyNSXv. If you come up with any interesting additional subcommand, workflow, bugfix that you would like to share, you can simply send us a pull request. Should you be interested in helping us coding missing functionality, you can see what we are tracking as enhancements in the Github Issue tracker of this repository.
Before sending us your pull request, please make sure that you pull the latest code from the devel branch, and base your additions from this branch. Also note that you might be requested to sign a Contributor License Agreement before we can merge your code. This happens automatically when you submit your first pull request.
If you don't want to code, we still very much welcome any help with testing and requests for additional functionality. Please don't hesitate to contact us and open tickets in the Github Issue tracker if you need help using PyNSXv.
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