Setup uWSGI as webserver with pyramid (no NGINX)

Question

Most of the available tutorials show how to set up uWSGI with an upstream HTTP server (like NGINX). But uWSGI alone can act beautifully as router/proxy/load-balancer - refer this For my project, I didn't want to setup NGINX at this moment so I started off exploring the option of serving webpages through uWSGI. The answer here shows how to set it up with Pyramid.

Answer 1

I am using pyramid_mongodb scaffold, which I have modified to get it working on python3. See here for details. Assuming that we have a Pyramid project (created with pcreate -s pyramid_mongodb MyProject). Here are the uWSGI configurations needed in development/production.ini

[uwsgi]
http = 0.0.0.0:8080
#http-to /tmp/uwsgi.sock - use this for standalone mode
#socket = :9050
master = true

processes = 2

harakiri = 60
harakiri-verbose = true
limit-post = 65536
post-buffering = 8192

daemonize = ./uwsgi.log
pidfile = ./orange_uwsgi.pid

listen = 128 

max-requests = 1000

reload-on-as = 128 
reload-on-rss = 96
no-orphans = true

#logto= <log file>
log-slow = true

virtualenv = <path to virtual environment>

#file = /path/to/pyramid.wsgi
#callable = application

need-app = true

Also since we are using uWSGI we can comment out server portion from the ini

#[server:main]
#use = egg:waitress#main
#host = 0.0.0.0
#port = 6544

To run the server use uwsgi --ini-paste development.ini

Answer 2

Much more easier! No need to modify at all the "development.ini" file. Create in the App folder where your "development" and "production" ini files reside, a file called "wsgi.app" with the following content:

from pyramid.paster import get_app,setup_logging

ini_path = '/pathto/myapp/development.ini'
setup_logging(ini_path)
application = get_app(ini_path,'main')

create let's say "myapp.conf" with it's content:

[uwsgi]
socket = 127.0.0.1:3053
uid = daemon
gid = daemon

venv = /pathto/myenv
project_dir = /pathto/myapp
chdir = %(project_dir)
master = true
plugins = plugins/python/python

check-static = %(project_dir)
static-skip-ext = .py
static-skip-ext = .pyc
static-skip-ext = .inc
static-skip-ext = .tpl

pidfile2 = /var/run/uwsgi/myinfo.pid
disable-logging = true
processes = 8
cheaper = 2

enable-threads = true
offload-threads = N
py-autoreload = 1
wsgi-file = /pathto/myapp/wsgi.py

and the NGINX configuation is very simple:

server {
 listen [xxxx:xxxx:xxxx:xxx:xxxx:xxxx]:80; #for IPv6
 listen xxx.xxx.xxx.xxx:80; #for IPv4

 server_name myapp.domain.com;

 location / {
     try_files $uri @uwsgi;
 }

 location @uwsgi {
      include uwsgi_params;
      uwsgi_pass 127.0.0.1:3053;
   }
}

1. restart nginx with "/path/to/usr/sbin/nginx -s reload"
2. start the uwsgi process -> change to "cd /usr/local/uwsgi-2.0.9" -> ./uwsgi -ini /var/www/myapp.conf