Contents

Overview

a supervisor rpc extension for obtaining the hosts system and process information plus a supervisor event monitor to collect system stats and post them to a REST endpoint.

  • Free software: BSD license

Installation

pip install git+https://github.com/thanos/supervisor-sysinfo.git

supervisor-sysinfo

a supervisor rpc extension for obtaining the hosts system and process information.

Requirements

  • Python 2.7+
  • supervisor 3.0+
  • psutil

Why

I use supervisor on many of my servers for control and monitoring and I needed a way to interrogate the sevrers for top, df and ps type information. Rather than have my own status server I’ve extended supervisor’s XML-RPC api to offer two new functions:
  • sysinfo.ps which returns a dictionary keyed by pid of the output of ps aux.
  • sysinfo.sysInfo which reruns cpu, memory and disk usage information.

Both functions return json strings. I do this as a work around the 32-bit int limitation of the XML-RPC standard.

Installation

Use the usual ways:

pip install git+https://github.com/thanos/supervisor-sysinfo.git

Setup

In your supervisor.conf file setup:

[inet_http_server]
port = *:9002
username = very_safe
password = very_safe

Uncomment:

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

Add:

      [rpcinterface:sysinfo]
      supervisor.rpcinterface_factory = supervisor_sysinfo.rpcinterface:make_sysinfo_rpcinterface

[eventlistener:monitor]
command=supervisor_monitor http://some_end_point.com:7000/monitor
events= TICK_60

Usage

You can look at the test code but effectively you need to do this:

import xmlrpclib,pprint, json

rpc_proxy =  xmlrpclib.ServerProxy('http://very_safe:very_safe@127.0.0.1:9002')

ps_list = json.loads(rpc_proxy.sysinfo.ps())
pprint.pprint(ps_list)

sysInfo =  json.loads(rpc_proxy.sysinfo.sysInfo())
pprint.pprint(sysInfo)

Development

To run the all tests run:

tox

Installation

At the command line:

pip install supervisor_sysinfo

Usage

To use supervisor-sysinfo in a project:

import supervisor_sysinfo

Reference

supervisor_sysinfo

Contributing

Contributions are welcome, and they are greatly appreciated! Every little bit helps, and credit will always be given.

Bug reports

When reporting a bug please include:

  • Your operating system name and version.
  • Any details about your local setup that might be helpful in troubleshooting.
  • Detailed steps to reproduce the bug.

Documentation improvements

supervisor-sysinfo could always use more documentation, whether as part of the official supervisor-sysinfo docs, in docstrings, or even on the web in blog posts, articles, and such.

Feature requests and feedback

The best way to send feedback is to file an issue at https://github.com/thanos/supervisor-sysinfo/issues.

If you are proposing a feature:

  • Explain in detail how it would work.
  • Keep the scope as narrow as possible, to make it easier to implement.
  • Remember that this is a volunteer-driven project, and that code contributions are welcome :)

Development

To set up supervisor-sysinfo for local development:

  1. Fork supervisor-sysinfo on GitHub.

  2. Clone your fork locally:

    git clone git@github.com:your_name_here/supervisor-sysinfo.git
    
  3. Create a branch for local development:

    git checkout -b name-of-your-bugfix-or-feature
    

    Now you can make your changes locally.

  4. When you’re done making changes, run all the checks, doc builder and spell checker with tox one command:

    tox
    
  5. Commit your changes and push your branch to GitHub:

    git add .
    git commit -m "Your detailed description of your changes."
    git push origin name-of-your-bugfix-or-feature
    
  6. Submit a pull request through the GitHub website.

Pull Request Guidelines

If you need some code review or feedback while you’re developing the code just make the pull request.

For merging, you should:

  1. Include passing tests (run tox) [1].
  2. Update documentation when there’s new API, functionality etc.
  3. Add a note to CHANGELOG.rst about the changes.
  4. Add yourself to AUTHORS.rst.
[1]

If you don’t have all the necessary python versions available locally you can rely on Travis - it will run the tests for each change you add in the pull request.

It will be slower though ...

Tips

To run a subset of tests:

tox -e envname -- py.test -k test_myfeature

To run all the test environments in parallel (you need to pip install detox):

detox

Authors

Changelog

0.1.0 (2016-01-19)

  • First release on PyPI.

Indices and tables