Ubuntu 11.10 with Nginx and uWSGI

Question

I'm trying to get a LNP [Linux Nginx Python] stack (is that even a thing? heh) going, but I'm having some difficulties.

A lot of blog posts and documentation on doing this seems to revolve around using Upstart to manage the uWSGI process, which would be fine but I'm noticing that the packages installed with an init.d script and some config directories in /etc/uwsgi/{apps-enabled,apps-available}. So clearly there is a better way to do it.

I have some config files (below), but I cannot seem to start the uwsgi process, running the init.d script does nothing, reports success but fails silently (without even a log).

When i execute uWSGI directly i get this:

% sudo uwsgi -i /etc/uwsgi/apps-enabled/site.ini
tmp = /
[uWSGI] getting INI configuration from /etc/uwsgi/apps-enabled/site.ini

/usr/lib/uwsgi/plugins/python27_plugin.so

Also worth noting, the error thrown when I try to access the site:

% cat logs/error.log 
2012/01/08 23:26:12 [crit] 9167#0: *13 connect() to unix://tmp/site.sock failed (2: No such file or directory) while connecting to upstream, client: 60.241.99.33, server: mysite.com, request: "GET / HTTP/1.1", upstream: "uwsgi://unix://tmp/site.sock:", host: "mysite.com"

uWSGI Config

% cat /etc/uwsgi/apps-enabled/config.ini 
[uwsgi]
uid = www-data
gid = www-data
home = /srv/www/site/myapp
socket = /tmp/site.sock
pythonpath = /srv/www/site/virtualenvs/default
harakiri = 60
daemonize = /srv/www/site/logs/uwsgi.log
plugins = http,python

Nginx Config

% cat /etc/nginx/sites-enabled/mysite.com 
server {
    listen 80;
    server_name mysite.com;
    access_log /srv/www/site/logs/access.log;
    error_log /srv/www/site/logs/error.log;
    root   /srv/www/site/public_html;
    index  index.html index.htm;


    location / {
        uwsgi_pass unix:///tmp/site.sock;
        include uwsgi_params;
    }

    location ~ /\. {
        access_log off;
        log_not_found off; 
        deny all;
    }

    location ~* \.(jpg|jpeg|gif|png|css|js|ico|xml)$ {
        access_log        off;
        log_not_found     off;
        expires           360d;
    }
}

I'm using

% dpkg --get-selections | grep uwsgi
libapache2-mod-uwsgi        install
uwsgi                       install
uwsgi-core                  install
uwsgi-plugin-http           install
uwsgi-plugin-python         install
% dpkg --get-selections | grep nginx
nginx-common                install
nginx-extras                install
nginx-full                  deinstall

Some version info

% nginx -V                                                                                                                       
nginx: nginx version: nginx/1.0.5
nginx: TLS SNI support enabled
nginx: configure arguments: --prefix=/etc/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_addition_module --with-http_dav_module --with-http_flv_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_perl_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-http_xslt_module --with-ipv6 --with-sha1=/usr/include/openssl --with-md5=/usr/include/openssl --with-mail --with-mail_ssl_module --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-development-kit --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-lua --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-http-push --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-upload-progress --add-module=/build/buildd/nginx-1.0.5/debian/modules/nginx-secure-download
% uwsgi --version
uWSGI 0.9.8.1-debian

Solution 1

You have daemonized uwsgi app server with /srv/www/site/logs/uwsgi.log as a log. The uwsgi log should contain information as to why it was unable to create the sock file in the first place.

Solution 2

Looking at your error.log it may be a permissions issue with the unix:///tmp/site.sock, in your uwsgi conf.ini you might use the chmod-socket option outlined here: uwsgi docs

Comments

[Admin]

what is the content of /etc/uwsgi/apps-enabled/site.ini ? you showed cat /etc/uwsgi/apps-enabled/config.ini , not the file that you run with uwsgi.

[devians]

no log exists in that location.

[devians]

the socket is never created