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Update to etebase using Daphne
Simon Vandevelde
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## uWSGI
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This page details how to create a production setup for the Etebase server.
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There exist many ways of doing this, but this guide uses `Daphne` as ASGI and `Nginx` as web server.
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It's not a good idea to just run the basic debug server and expose it to the outside world.
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We do because its not a good idea to just run the basic debug server and expose it to the outside world.
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Instead, a component stack should be built.
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The [uWSGI docs](https://uwsgi-docs.readthedocs.io/en/latest/tutorials/Django_and_nginx.html) state the following:
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In this guide, we will create the following stack:
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>A web server faces the outside world. It can serve files (HTML, images, CSS, etc) directly from the file system. However, it can’t talk directly to Django applications; it needs something that will run the application, feed it requests from web clients (such as browsers) and return responses.
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>A Web Server Gateway Interface - WSGI - does this job. WSGI is a Python standard.
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>uWSGI is a WSGI implementation. In this tutorial we will set up uWSGI so that it creates a Unix socket, and serves responses to the web server via the uwsgi protocol. At the end, our complete stack of components will look like this:
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> `the web client <-> Nginx <-> the socket <-> Daphne <-> Django`
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> `the web client <-> the web server <-> the socket <-> uwsgi <-> Django`
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Note that different WSGI's exist and can be used, like for example Gunicorn.
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However, in this tutorial uWSGI is used.
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## Daphne
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### Installing uWSGI
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### Installing Daphne
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Installation of uWSGI is easily done via pip.
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Root needs access to uWSGI later, so install it as superuser.
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Installation of Daphne is easily done via pip.
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Make sure to install it inside of your virtual environment if you are using one.
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```
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sudo pip3 install uwsgi
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$ cd path/to/etebase
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$ source venv/bin/activate # In case you haven't activated the venv yet.
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$ pip3 install daphne
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```
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### Testing uWSGI
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### Testing Daphne
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We can already test whether our uWSGI installation works.
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We can already test whether our daphne installation works.
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```
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cd path/to/server-skeleton
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source venv/bin/activate # In case you haven't activated the venv yet.
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uwsgi --http :8000 --module etesync_server.wsgi --virtualenv venv
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$ cd path/to/etebase
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$ source venv/bin/activate # In case you haven't activated the venv yet.
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$ daphne -b 0.0.0.0 -p 8000 etebase_server.asgi:application
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```
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This command runs the EteSync module, exposes it on port 8000 and uses the `venv` virtual environment.
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You can now surf to the IP address followed by port 8000 in the browser to check if it works (you should see "It works!")
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This command runs the Etebase application and exposes it on port 8000.
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On the machine itself, you can now surf to `localhost:8000` to check if it works.
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If you're on a different machine than the one running the server, surf to its local IP address followed by the port number, e.g. `192.168.x.x:8000`.
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## Nginx
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Nginx will form our proper web server.
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Nginx will be used as our proper web server.
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### Installing Nginx
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Installation if done via apt.
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Installation can be done via apt.
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```
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sudo apt-get install nginx
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$ sudo apt-get install nginx
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```
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### Setup Nginx
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First of all, create Django's static files so that Nginx can access them.
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First of all, we create Django's static files so that Nginx can access them.
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```
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./manage.py collectstatic
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$ ./manage.py collectstatic
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```
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Now we need to configure Nginx, using a configuration file.
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Create a new file called `etesync_nginx.conf` and paste the following into it.
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Create a new file called `etebase_nginx.conf` and paste the following into it.
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Don't forget to change `server_name` and the path to `/static`.
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```
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# mysite_nginx.conf
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# etebase_nginx.conf
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# the upstream component nginx needs to connect to
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upstream django {
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# server unix:///tmp/etesync_server.sock; # for a file socket
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upstream etebase {
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# server unix:///tmp/etebase_server.sock; # for a file socket
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server 127.0.0.1:8001; # for a web port socket (we'll use this first)
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}
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@ -80,77 +80,69 @@ server {
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client_max_body_size 75M; # adjust to taste
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location /static/ {
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alias /path/to/server_skeleton/static; # Project's static files
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alias /path/to/etebase; # Project's static files
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}
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# Finally, send all non-media requests to the Django server.
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location / {
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uwsgi_pass django;
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include /etc/nginx/uwsgi_params; # the uwsgi_params file, this path by default
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proxy_pass http://etebase;
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proxy_http_version 1.1;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection "upgrade";
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proxy_redirect off;
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Host $server_name;
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}
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}
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```
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Move this file to `/etc/nginx/sites-available` and symlink it to `/etc/nginx/sites-enabled`.
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After restarting Nginx and launching uWSGI (on port 8001), you should be able to surf to the same url as before and see "It works!".
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Now we move this file to `/etc/nginx/sites-available` and symlink it to `/etc/nginx/sites-enabled`.
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After restarting Nginx and launching Daphne (on port 8001), you should be able to surf to the same url as before and see "It works!".
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```
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sudo cp etesync_nginx.conf /etc/nginx/sites-available/
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sudo ln -s /etc/nginx/sites-available/etesync_nginx.conf /etc/nginx/sites-enabled/etesync_nginx.conf
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systemctl restart nginx
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uwsgi --socket :8001 --module etesync_server.wsgi --virtualenv venv
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$ sudo cp etebase_nginx.conf /etc/nginx/sites-available/
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$ sudo ln -s /etc/nginx/sites-available/etebase_nginx.conf /etc/nginx/sites-enabled/etebase_nginx.conf
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$ systemctl restart nginx
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$ daphne -b 0.0.0.0 -p 8000 etebase_server.asgi:application
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```
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If you encounter any errors, the Nginx log is located in `/var/log/nginx/error.log`.
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### Finalize Nginx & uWSGI setup
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### Finalize Nginx & Daphne setup
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For testing purposes, uWSGI exposes the Django application on port 8001.
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A more elegant solution would be to expose the application using a file socket.
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For testing purposes, Daphne exposes the Django application on port 8001.
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A more elegant solution would be to expose the application using a Unix file socket.
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Change `/etc/nginx/sites-available/etesync_nginx.conf` to accept file sockets by commenting in `server unix:///tmp/etesync_server.sock;` and commenting out `server 127.0.0.1:8001;`.
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Change `/etc/nginx/sites-available/etebase_nginx.conf` to accept file sockets by commenting in `server unix:///tmp/etebase_server.sock;` and commenting out `server 127.0.0.1:8001;`.
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The first part should now look like this:
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```
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# the upstream component nginx needs to connect to
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upstream django {
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server unix:///tmp/etesync_server.sock; # for a file socket
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upstream etebase {
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server unix:///tmp/etebase_server.sock; # for a file socket
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# server 127.0.0.1:8001; # for a web port socket (we'll use this first)
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}
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```
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This will create a file socket at `/tmp/etesync_server.sock`.
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Now, configure uWSGI to also work using a file socket.
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Because a lot of parameters are needed, create a `uwsgi.ini` and copy the following in it.
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Don't forget to replace `<user>` by the name of the user for the server.
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This will create a file socket at `/tmp/etebase_server.sock`.
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Now, we change the way we run Daphne to use the same file socket.
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```
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[uwsgi]
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chdir = /path/to/server-skeleton/
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socket = /tmp/etesync_server.sock
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chown-socket = <user>:www-data
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chmod-socket = 660
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module = etesync_server.wsgi
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master = true
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uid = <user>
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virtualenv = venv
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```
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Now to run uWSGI, all you need to do is tell it to use the `.ini` server.
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Restart Nginx and check if everything still works.
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```
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systemctl restart nginx
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sudo uwsgi --ini uwsgi.ini # has to be executed as root
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$ systemctl restart nginx
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$ daphne -u /tmp/etebase_server.sock etebase_server.asgi:application
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```
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### That's it!
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You now have a working EteSync server over HTTP.
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Don't forget to change `allowed_hosts` to your domain name in `etesync-server.ini` and to set `server_name` to your domain name in `/etc/nginx/sites-available/etesync_nginx.conf`.
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You now have a working Etebase server over HTTP.
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Don't forget to change `allowed_hosts` to your domain name in `etebase-server.ini` and to set `server_name` to your domain name in `/etc/nginx/sites-available/etebase_nginx.conf`.
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An optional next step is to have your uWSGI run automatically at boot. More explanation can be found here: [Run uWSGI at boot](https://github.com/etesync/server/wiki/Run-uWSGI-at-boot)
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An optional next step is to have your Daphne run automatically at boot. More explanation can be found here: [Run Daphne at boot](https://github.com/etesync/server/wiki/Run-Daphne-at-boot)
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It is also *highly* recommended **to enable SSL for your EteSync server!**
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A page detailing SSL setup can be found here: [Setup HTTPS for EteSync](https://github.com/etesync/server/wiki/Setup-HTTPS-for-EteSync)
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It is also *highly* recommended **to enable SSL for your Etebase server!**
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A page detailing SSL setup can be found here: [Setup HTTPS for Etebase](https://github.com/etesync/server/wiki/Setup-HTTPS-for-Etebase)
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