uwsgi upstart on amazon linux - nginx

Question

I created a uwsgi file following this tutorial https://uwsgi.readthedocs.org/en/latest/Upstart.html on amazon linux. Though It doesn't seem to run as Nginx just says bad gateway. If I run the
/etc/init/uwsgi.conf
description "uwsgi tiny instance"
start on runlevel [2345]
stop on runlevel [06]
exec /home/ec2-user/venv/bin/uwsgi --ini /home/ec2-user/uwsgi-prod_demo.ini
if I do run the following in shell, then python application runs.
/home/ec2-user/venv/bin/uwsgi --ini /home/ec2-user/uwsgi-prod_demo.ini
uwsgi-prod_demo.ini
[uwsgi]
socket = :8080
chdir = /home/ec2-user/prod_demo
master = True
venv = /home/ec2-user/venv
callable = app
wsgi-file = /home/ec2-user/prod_demo/manage.py
enable-threads = True
https = =0,/home/ec2-user/xxx.com.au.pem,/home/ec2-user/newkey.pem,HIGH
nginx.conf
user ec2-user;
worker_processes 1;
error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
server {
listen 80;
listen 443 ssl;
ssl_certificate /home/ec2-user/xxx.com.au.pem;
ssl_certificate_key /home/ec2-user/newkey.pem;
server_name import.xxx.com.au *.import.xxx.com.au;
access_log /var/log/prod_demo/access_log;
root /home/ec2-user/prod_demo;
location / {
uwsgi_pass 127.0.0.1:8080;
include uwsgi_params;
}
location /static {
alias /home/ec2-user/prod_demo/app/static;
}
location = /favicon.ico {
alias /home/ec2-user/prod_demo/app/static/images/favicon.ico;
}
}
}

Answer 1

To fix this I did a few things.
- Moved all scripts from the home directory to an /var/www/
- created an www group and www user and chown /var/www to www:www
Full Instructions
Create a user and group www and www
sudo groupadd www
sudo adduser www -g www
create a dir where your flask application will be ie /var/www/
sudo chown -R www:www /var/www
/etc/nginx/nginx.conf
# /etc/nginx/nginx.conf
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user www;
worker_processes 1;
error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
client_max_body_size 20M;
#keepalive_timeout 0;
keepalive_timeout 0;
uwsgi_read_timeout 86400;
uwsgi_send_timeout 86400;
#gzip on;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
server {
listen 80;
listen 443 ssl;
ssl_certificate /var/www/test.com.au.pem;
ssl_certificate_key /var/www/newkey.pem;
server_name demo.test.com.au;
access_log /var/log/prod_demo/access_log;
root /var/www/prod_demo;
location / {
uwsgi_pass 127.0.0.1:28080;
include uwsgi_params;
}
location /static {
alias /var/www/prod_demo/app/static;
}
location = /favicon.ico {
alias /var/www/prod_demo/app/static/images/favicon.ico;
}
}
server {
listen 80;
listen 443 ssl;
ssl_certificate /var/www/test.com.au.pem;
ssl_certificate_key /var/www/newkey.pem;
server_name ajtravel.test.com.au;
access_log /var/log/prod_demo_two/access_log;
root /var/www/prod_demo_two;
location / {
uwsgi_pass 127.0.0.1:28082;
include uwsgi_params;
}
location /static {
alias /var/www/prod_demo_two/app/static;
}
location = /favicon.ico {
alias /var/www/prod_demo_two/app/static/images/favicon.ico;
}
}
#test config
server {
listen 80;
listen 443 ssl;
ssl_certificate /var/www/test.com.au.pem;
ssl_certificate_key /var/www/newkey.pem;
server_name demo.test.test.com.au;
access_log /var/log/prod_demo/access_log;
root /var/www/prod_demo;
location / {
uwsgi_pass 127.0.0.1:28080;
include uwsgi_params;
}
location /static {
alias /var/www/prod_demo/app/static;
}
location = /favicon.ico {
alias /var/www/prod_demo/app/static/images/favicon.ico;
}
}
server {
listen 80;
listen 443 ssl;
ssl_certificate /var/www/test.com.au.pem;
ssl_certificate_key /var/www/newkey.pem;
server_name ajtravel.test.test.com.au;
access_log /var/log/prod_demo_two/access_log;
root /var/www/prod_demo_two;
location / {
uwsgi_pass 127.0.0.1:28082;
include uwsgi_params;
}
location /static {
alias /var/www/prod_demo_two/app/static;
}
location = /favicon.ico {
alias /var/www/prod_demo_two/app/static/images/favicon.ico;
}
}
}
/etc/init/uwsgi-prod-demo.conf
# https://uwsgi.readthedocs.org/en/latest/Upstart.html
# /etc/init/uwsgi.conf
# simple uWSGI script
description "uwsgi tiny instance"
#start on runlevel [2345]
#stop on runlevel [06]
start on started elastic-network-interfaces
exec /var/www/venv/bin/uwsgi --ini /var/www/uwsgi-prod_demo.ini
/var/www/uwsgi-prod_demo.ini
[uwsgi]
uid = www
gid = www
socket = :28080
chdir = /var/www/prod_demo
master = True
venv = /var/www/venv
callable = app
wsgi-file = /var/www/prod_demo/manage.py
enable-threads = True