WSGI server implemented in Rust.
Project description
Pyruvate WSGI server
Pyruvate is a WSGI server implemented in Rust.
Features
Non-blocking read/write using mio
Request parsing using httparse
rust-cpython based Python interface
Worker pool based on threadpool
PasteDeploy entry point
Development Installation
Install Rust
Install and activate a Python 3 (> 3.5) virtualenv
Install setuptools_rust using pip:
$ pip install setuptools_rust
Install pyruvate, e.g. using pip:
$ pip install -e git+https://gitlab.com/tschorr/pyruvate.git#egg=pyruvate[test]
Using Pyruvate in your WSGI application
From Python
A hello world WSGI application using pyruvate listening on 127.0.0.1:7878 and using 2 worker threads looks like this:
import pyruvate
def application(environ, start_response):
"""Simplest possible application object"""
status = '200 OK'
response_headers = [('Content-type', 'text/plain')]
start_response(status, response_headers, None)
return [b"Hello world!\n"]
pyruvate.serve(application, "127.0.0.1:7878", 2)
Using PasteDeploy
Again listening on 127.0.0.1:7878 and using 2 worker threads:
[server:main] use = egg:pyruvate#main socket = 127.0.0.1:7878 workers = 2
Configuration Options
- socket
Required: The TCP socket Pyruvate should bind to. pyruvate also supports systemd socket activation If you specify None as the socket value, pyruvate will try to acquire a socket bound by systemd.
- workers
Required: Number of worker threads to use.
- write_blocking
Optional: Use a blocking connection for writing. Pyruvate currently supports two types of workers: The default worker will write in a non-blocking manner, registering WSGI responses for later processing if the socket isn’t available for writing immediately. By setting this option to True you can enable a worker that will instead set the connection into blocking mode for writing. Defaults to False.
- max_number_headers
Optional: Maximum number of request headers that will be parsed. If a request contains more headers than configured, request processing will stop with an error indicating an incomplete request. The default is 16 headers.
Example Configurations
Django 2
After installing Pyruvate in your Django virtualenv, create or modify your wsgi.py file (one worker listening on 127.0.0.1:8000):
import os
import pyruvate
from django.core.wsgi import get_wsgi_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "your_django_application.settings")
application = get_wsgi_application()
pyruvate.serve(application, "127.0.0.1:8000", 1)
You can now start Django + Pyruvate with:
$ python wsgi.py
Override settings by using the DJANGO_SETTINGS_MODULE environment variable when appropriate. Tested with Django 2.2.x.
Mapproxy
Create or modify config.py (2 workers listening on 127.0.0.1:8005):
from logging.config import fileConfig
import os.path
import pyruvate
fileConfig(r'/path/to/mapproxy/log.ini', {'here': os.path.dirname(__file__)})
from mapproxy.wsgiapp import make_wsgi_app
application = make_wsgi_app(r'/path/to/mapproxy/mapproxy.yml')
pyruvate.serve(application, "127.0.0.1:8005", 2)
Start from your virtualenv:
$ python config.py
Tested with Mapproxy 1.12.x.
Plone 5.2
Using zc.buildout and plone.recipe.zope2instance you can define an instance part using Pyruvate’s PasteDeploy <https://pastedeploy.readthedocs.io/en/latest/> _entry point:
[instance]
recipe = plone.recipe.zope2instance
http-address = 127.0.0.1:8080
eggs =
Plone
pyruvate
wsgi-ini-template = ${buildout:directory}/templates/pyruvate.ini.in
The server section of the template provided with the wsgi-ini-template option should look like this (3 workers listening on http-address as specified in the buildout [instance] part):
[server:main] use = egg:pyruvate#main socket = %(http_address)s workers = 3
Tested with Plone 5.2.x.
Nginx settings
Like other WSGI servers pyruvate should be used behind a reverse proxy, e.g. Nginx:
....
location / {
proxy_pass http://localhost:7878;
...
}
...
Changelog
0.5.2 (2020-07-15)
Fix testing for completed response in case of EAGAIN
Cargo update
0.5.1 (2020-07-07)
Fix handling of read events
Fix changelog
Cargo update
‘Interrupted’ error is not a todo
Remove unused code
0.5.0 (2020-06-07)
Add support for systemd socket activation
0.4.0 (2020-06-29)
Add a new worker that does nonblocking write
Add default arguments
Add option to configure maximum number of request headers
Add Via header
0.3.0 (2020-06-16)
Switch to rust-cpython
Fix passing of tcp connections to worker threads
0.2.0 (2020-03-10)
Added some Python tests (using py.test and tox)
Improve handling of HTTP headers
Respect content length header when using sendfile
0.1.0 (2020-02-10)
Initial release
Release history Release notifications | RSS feed
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