Add example config for using using nginx with uwsgi

example-configs/nginx-uwsgi/etesync.ini

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+# uwsgi configuration file
+# typical location of this file would be /etc/uwsgi/sites/etesync.ini
+
+[uwsgi]
+socket = /path/to/etesync_server.sock
+chown-socket = EtesyncUser:www-data
+chmod-socket = 660
+vacuum = true
+
+
+uid = EtesyncUser
+chdir = /path/to/etesync
+home = %(chdir)/.venv
+module = etesync_server.wsgi
+master = true

example-configs/nginx-uwsgi/my.server.name.conf

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+# nginx configuration for etesync server running on https://my.server.name 
+# typical location of this file would be /etc/nginx/sites-available/my.server.name.conf
+
+server {
+    server_name my.server.name;
+
+    root /srv/http/etesync_server;
+
+    client_max_body_size 5M;
+    
+    location /static {
+        expires 1y;
+        try_files $uri $uri/ =404;
+    }
+
+    location / {
+        uwsgi_pass      unix:/path/to/etesync_server.sock;
+        include         uwsgi_params;
+    }
+
+    # change 443 to say 9443 to run on a non standard port
+    listen 443 ssl;                                                            
+    listen [::]:443 ssl; 
+    # Enable these two instead of the two above if your nginx supports http2
+    # listen 443 ssl http2;
+    # listen [::]:443 ssl http2;
+    
+    ssl_certificate /path/to/certificate-file
+    ssl_certificate_key /path/to/certificate-key-file
+    # other ssl directives as needed

example-configs/nginx-uwsgi/readme.md

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+# Running `etesync` under `nginx` and `uwsgi`
+
+This configuration assumes that etesync server has been installed in the home folder of a non privileged user 
+called `EtesyncUser` following the instructions in <https://github.com/etesync/server-skeleton>. Also that static 
+files have been collected at `/srv/http/etesync_server` by running the following commands:
+
+    sudo mkdir -p /srv/http/etesync_server/static
+    sudo chown -R EtesyncUser /srv/http/etesync_server
+    sudo su EtesyncUser
+    cd /path/to/etesync
+    ln -s /srv/http/etesync_server/static static
+    ./manage.py collectstatic
+
+It is also assumed that `nginx` and `uwsgi` have been installed system wide by `root`, and that `nginx` is running as user/group `www-data`. 
+
+In this setup, `uwsgi` running as a `systemd` service as `root` creates a unix socket with read-write access 
+to both `EtesyncUser` and `nginx`. It then drops its `root` privilege and runs `etesync` as `EtesyncUser`.
+
+`nginx` listens on the `https` port (or a non standard port `https` port if desired), delivers static pages directly 
+and for everything else, communicates with `etesync` over the unix socket.

example-configs/nginx-uwsgi/uwsgi.service

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+# systemd unit for running uwsgi in emperor mode
+# typical location of this file would be /etc/systemd/system/uwsgi.service
+
+[Unit]
+Description=uWSGI Emperor service
+
+[Service]
+ExecStart=/usr/local/bin/uwsgi --emperor /etc/uwsgi/sites
+Restart=always
+KillSignal=SIGQUIT
+Type=notify
+NotifyAccess=all
+
+[Install]
+WantedBy=multi-user.target