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
Documentation¶
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.
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)
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:
Clone your fork locally:
git clone git@github.com:your_name_here/supervisor-sysinfo.git
Create a branch for local development:
git checkout -b name-of-your-bugfix-or-feature
Now you can make your changes locally.
When you’re done making changes, run all the checks, doc builder and spell checker with tox one command:
tox
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
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:
- Include passing tests (run
tox
) [1]. - Update documentation when there’s new API, functionality etc.
- Add a note to
CHANGELOG.rst
about the changes. - 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¶
- Thanos Vassilakis - https://github.com/thanos/thanos