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pythonbashubuntuazurenginx
Hassan Baig
Hassan Baig

Reputation: 15824

How to set up globally visible environment variables on Azure VM (v1)

Is there a way to set system wide/globally visible environment variables on an Azure VM (service management) with Ubuntu OS? I'm stuck in a situation where setting them inside ubuntu's /etc/environment /etc/profile and /etc/bash.bashrc isn't being picked up by my application code. However, they do show up on printenv. My guess is they're somehow getting bypassed because of the way my webserver is set up (Gunicorn + Nginx reverse proxy).

But maybe there's a way to set up env variables on Azure VMs that that takes precedence over everything? I know Heroku has that option in their dashboard (I've been using it), so do Azure Web Apps (which I'm not able to use due to a variety of well-documented compatibility issues).

Upvotes: 2

Views: 5849

Answers (1)

Peter Pan
Peter Pan

Reputation: 24138

As references, I post my steps on Azure VM. You can check them and compare with yours.

  1. Connect to a new Azure VM: ssh [email protected]

  2. Install the tool pip and virtualenv:

    sudo apt-get update
sudo apt-get install python-pip
sudo pip install virtualenv

  3. Preparing the virtualenv to install gunicorn and django

    mkdir environments
virtualenv environments/experiment/ 
cd environments/experiment/ 
source bin/activate 
pip install gunicorn django

  4. Create a django project and run it by using gunicorn and try to access it:

    django-admin startproject mysite
bin/gunicorn --chdir=mysite -w 3 --env DJANGO_SETTINGS_MODULE=mysite.settings mysite.wsgi:application
# using w3m to access http://localhost:8000
w3m http://localhost:8000

  5. Install Nginx and configure reverse proxy:

    sudo apt-get install nginx
sudo cp /etc/nginx/site-available/default /etc/nginx/site-available/default.bak
sudo vim /etc/nginx/site-available/default

The configured content in the default file for nginx below:

server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;

        root /usr/share/nginx/html;
        index index.html index.htm;

        # Make site accessible from http://localhost/
        server_name localhost;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules

                include proxy_params;
                proxy_pass http://unix:/home/<user>/environments/experiment/mysite/mysite.sock; 
                # I also try to config `http://localhost:8000;`, it's ok too.
        }
  }

I also try to config proxy_pass http://localhost:8000;, it's ok too.

  1. Restart nginx service and restart gunicorn:

    sudo service nginx restart
bin/gunicorn --chdir=mysite --bind unix:/home/<user>/environments/experiment/mysite/mysite.sock -w 3 --env DJANGO_SETTINGS_MODULE=mysite.settings mysite.wsgi:application

And I found the application can't get the environment variables set up after application startup. So please run the command source /etc/... before gunicorn startup.

Any concern, please feel free to let me know.

Upvotes: 1

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