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Python Bindings for OpenNebula XML-RPC API

Project description

Description

PyOne is an implementation of Open Nebula XML-RPC bindings in Python.

The main goals of this library are completeness and maintainability.

Proxies and generators have been used whenever possible to minimize the impact of API updates, ensuring that the distributed xsd files are the only update required when new API versions are released.

This library is meant to be used together with OpenNebula API documentation:

The XML-RPC API must be used to know which calls to make.

Development

To contribute enhancements or fixes use GitHub tools: Pull requests and issues. Please note that by contributing to this project you accept that your contributions are under the Apache License 2.0, just like the rest of this project. Please take some time to read and understand the license terms and ensure that you are happy with it.

Authors

Compatibility

  • PyONE is compatible with OpenNebula v5.4
  • It should be easy to backport PyOne to any OpenNebula version with XML-RPC API that includes XML Schema Definition (XSD) files.

Requirements

  • Connectivity and Credentials to OpenNebula XML-RPC Server.

Installation

PyONE is distributed as a python package, it can be installed as:

pip install pyone

Configuration

You can configure your XML-RPC Server endpoint and credentials in the constructor:

import pyone
one = pyone.OneServer("http://one/RPC2", session="oneadmin:onepass" )

If you are connecting to a test platform with a self signed certificate you can disable certificate verification as:

import pyone
import ssl
one = pyone.OneServer("http://one/RPC2", session="oneadmin:onepass", context=ssl._create_unverified_context() )

It is also possible to modify the default connection timeout, but note that the setting will modify the TCP socket default timeout of your Python VM, ensure that the chosen timeout is suitable to any other connections runing in your project.

Usage

Making Calls

Calls match the API documentation provided by Open Nebula:

import pyone

one = pyone.OneServer("http://one/RPC2", session="oneadmin:onepass" )
hostpool = one.hostpool.info()
host = hostpool.HOST[0]
id = host.ID

Note that the session parameter is automatically included as well as the “one.” prefix to the method.

Returned Objects

The returned types have been generated with PyXB and closely match the XSD specification. You can use the XSD specification as primary documentation while your IDE will offer code completion as you code or debug.

marketpool = one.marketpool.info()
m0 = marketpool.MARKETPLACE[0]
print "Markeplace name is " + m0.NAME

Structured Parameters

When making calls, the library will translate flat dictionaries into attribute=value vectors. Such as:

one.host.update(0,  {"LABELS": "HD"}, 1)

When the provided dictionary has a “root” dictionary, it is considered to be root element and it will be translated to XML:

one.vm.update(1,
  {
    'TEMPLATE': {
      'NAME': 'abc',
      'MEMORY': '1024',
      'ATT1': 'value1'
    }
  }, 1)

Building from Source

Note that a Makefile is provided to generate the python bindings

References

PyONE started as part of the Privazio project.

Privazio is a private cloud for residential users, startups or workgroups with a special focus on privacy.

PyONE is meant to be a key component to implement an Ansible module for managing Open Nebula.

License

PyONE is licensed under Apache License 2.0

Project details


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Filename, size & hash SHA256 hash help File type Python version Upload date
pyone-1.0.3-py2-none-any.whl (85.2 kB) Copy SHA256 hash SHA256 Wheel py2 Jan 28, 2018
pyone-1.0.3.tar.gz (68.4 kB) Copy SHA256 hash SHA256 Source None Jan 28, 2018

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