Question

Django 1-click install 502 bad gateway

I’ve just started with Django’s 1-click install running on Ubuntu 16.04. My IP address works, but the domain doesn’t. I only have IPV4 enabled. I have the correct A record enabled and the NS set up.

But when I access the domain I get 502 bad gateway error. I spun this droplet up last night, so the details should have propagated.

I am getting the following nginx errors in the logs:

2017/01/11 18:11:40 [error] 3002#3002: *1 upstream prematurely closed connection while reading response header from upstream, client: 142.177.130.233, server: _, request: "GET / HTTP/1.1", upstream: "http://unix:/home/django/gunicorn.socket:/", host: "my-website.co"
2017/01/11 18:11:41 [error] 3002#3002: *1 upstream prematurely closed connection while reading response header from upstream, client: 142.177.130.233, server: _, request: "GET /favicon.ico HTTP/1.1", upstream: "http://unix:/home/django/gunicorn.socket:/favicon.ico", host: "my-website.co", referrer: "http://my-website.co/"

I don’t know but I’m assuming this is a Gunicorn issue (I’m new to Gunicorn so don’t know though), my nginx looks like this, I’ve commented things that i’ve added

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration
#
# I added this based off https://www.digitalocean.com/community/tutorials/how-to-use-the-django-one-click-install-image
upstream app_server {
    server 127.0.0.1:9000 fail_timeout=0;
}
server {
        listen 80 default_server;
        listen [::]:80 default_server;

# I added this for let's encrypt
location ~ /.well-known {
                allow all;
        }

        # SSL configuration
        #
        # listen 443 ssl default_server;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: https://bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: https://bugs.debian.org/765782
        #
        # Self signed certs generated by the ssl-cert package
        # Don't use them in a production server!
        #
        # include snippets/snakeoil.conf;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name _;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
        }

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #       include snippets/fastcgi-php.conf;
        #
        #       # With php7.0-cgi alone:
        #       fastcgi_pass 127.0.0.1:9000;
        #       # With php7.0-fpm:
        #       fastcgi_pass unix:/run/php/php7.0-fpm.sock;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #}
}
# Virtual Host configuration for example.com
#
# You can move that to a different file under sites-available/ and symlink that
# to sites-enabled/ to enable it.
#
#server {
#       listen 80;
#       listen [::]:80;
#
#       server_name example.com;
#
#       root /var/www/example.com;
#       index index.html;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}

The link https://www.digitalocean.com/community/tutorials/how-to-use-the-django-one-click-install-image doesn’t seem to have the correct paths for my 1-click, for example it references: /etc/init/gunicorn.conf. Which I don’t seem to have.

I just ran: sudo netstat -plunt | grep gunicorn

And nothing was returned. I assumed this should return something if it was running? I also ran: service gunicorn start and it started once I put my password in, but netstat returns nothing.?

I’m at a bit of a loss here, in where to go and what’s wrong. I kinda expected the one click to go a bit more smoothly. To my knowledge I haven’t done anything that would break it.

Thanks :)

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Update Feb 2018:

I had the same problems as you with the one click droplet:

Summary of my solution:

ALLOWEDHOSTS = [ ‘domainname’, ‘dropelt_IP’]

and add the bottom of settings.py:

change: ALLOWEDHOSTS = ipaddresses()

to

ALLOWEDHOSTS += ipaddresses()

Kind regards Moritz

I just did:

sudo systemctl daemon-reload sudo systemctl restart gunicorn

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