Connect apache unix socket

18.4.0 released Sep 25, 2023

This shows how to connect your application listening on a Unix socket (started with vf) to Apache web server.

- Step 1:
To setup Apache as a reverse proxy and connect your application to it, you need to enable FastCGI proxy support, which generally means "proxy" and "proxy_fcgi" modules - this is done only once:

For Debian (like Ubuntu) and OpenSUSE systems you need to enable proxy and proxy_fcgi modules:
```
sudo a2enmod proxy
sudo a2enmod proxy_fcgi
```
For Fedora systems (or others like Archlinux) enable proxy and proxy_fcgi modules by adding (or uncommenting) LoadModule directives in the Apache configuration file - the default location of this file on Linux depends on the distribution. For Fedora (such as RedHat), Archlinux:
```
sudo vi /etc/httpd/conf/httpd.conf
```
For OpenSUSE:
```
sudo vi /etc/apache2/httpd.conf
```
Add this to the end of the file:
```
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
```

- Step 2:
Edit the Apache configuration file:

For Debian (such as Ubuntu):
```
sudo vi /etc/apache2/apache2.conf
```
for Fedora (such as RedHat), Archlinux:
```
sudo vi /etc/httpd/conf/httpd.conf
```
and for OpenSUSE:
```
sudo vi /etc/apache2/httpd.conf
```

Add this to the end of file ("/<app path>" is the application path (see request-URL) and "<app name>" is your application name):

ProxyPass "/<app path>" unix:///var/lib/vv/<app name>/sock/sock|fcgi://localhost/<app path>

- Step 3:
Finally, restart Apache. On Debian systems (like Ubuntu) or OpenSUSE:

sudo systemctl restart apache2

On Fedora systems (like RedHat) and Arch Linux:

sudo systemctl restart httpd

Note: you must not have any other URL resource that starts with "/<app path>" (such as for example "/<app path>.html" or "/<app path>_something" etc.) as the web server will attempt to pass them as a reverse proxy request, and they will likely not work. If you need to, you can change the application path to be different from "/<app path>", see request-URL.