Configuration of Lizmap Web Client and QGIS Server with NGINX

Question

I have the same problem described in this question, with the difference that I am using NGINX for Lizmap and QGIS Server, and that I used a python virtual environment to install the QGIS-Plugin-Manager. Debian Linux (Raspbian Lite on Raspberry Pi 4).

Could it be that "QGIS Server returns an HTTP error about the Lizmap plugin: Unknown", because the plugin is sort of "hidden" inside inside the virtual environment? I tried also running QGIS Server with the same .conf file and port as Lizmap with a location /qgisserver. which did not help.

Listing the QGIS Plugins inside the virtual environment:

(pvenv) m.hackenberg@raspberrypi:/usr/lib/qgis/plugins $ qgis-plugin-manager list
Cannot check version with PyQGIS, check your QGIS installation or your PYTHONPATH
Current user : m.hackenberg
PYTHONPATH=None
List all plugins in the current working directory : /usr/lib/qgis/plugins

Your https://plugins.qgis.org remote is not using a dynamic QGIS version.
Instead of
'https://plugins.qgis.org/plugins/plugins.xml?qgis=3.22'
in your 'sources.list' file, you should have
'https://plugins.qgis.org/plugins/plugins.xml?qgis=[VERSION]'

Can you remove the file sources.list ? 'qgis-plugin-manager init' will regenerate it using dynamic QGIS version if QGIS is well configured.
This is only a warning, the process will continue with the hardcoded QGIS version in your 'sources.list' file.

-----------------------------------------------------------------------------------------------------------------
|  Folder ⬇   |  Name       |  Version  |  Flags  |  QGIS min  |  QGIS max  |  Author  |  Folder rights     |  Action ⚠  |
-----------------------------------------------------------------------------------------------------------------
|lizmap_server|Lizmap server|2.8.1      |Server   |3.10        |3.99        |3Liz      |m.hackenberg : 0o755|   |
-----------------------------------------------------------------------------------------------------------------

output of qgis-server status:

Jan 07 10:28:23 raspberrypi spawn-fcgi[715]: 10:28:23 INFO ./src/server/qgsserverplugins.cpp[715]: load library /usr/lib/qgispython (3.22.16)
Jan 07 10:28:23 raspberrypi spawn-fcgi[715]: 10:28:23 INFO ./src/server/qgsserverplugins.cpp[715]: Python support library loaded successfully.
Jan 07 10:28:32 raspberrypi spawn-fcgi[715]: <string>:1: DeprecationWarning: setapi() is deprecated
Jan 07 10:28:33 raspberrypi spawn-fcgi[715]: 10:28:33 INFO Server[715]: No server python plugins are available

This is my NGINX .conf file in /etc/nginx/sites-available/:

server {
    listen 80;
    root /var/www/html/lizmap;
    index index.php index.html index.htm;

    # compression setting
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 5;
    gzip_min_length 100;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml >

    location / {
        try_files $uri $uri/ =404;
    }

    location ~ [^/]\.php(/|$) {
       fastcgi_split_path_info ^(.+\.php)(/.*)$;
       set $path_info $fastcgi_path_info; # because of bug http://trac.nginx.org/ngi>
       try_files $fastcgi_script_name =404;
       include fastcgi_params;

       fastcgi_index index.php;
       fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
       fastcgi_param PATH_INFO $path_info;
       fastcgi_param PATH_TRANSLATED $document_root$path_info;
       fastcgi_pass unix:/var/run/php/php8.2-fpm.sock;
       fastcgi_param SERVER_NAME $http_host;
   }
}

And this is the file for QGIS Server:

upstream qgis-server_backend {
   server unix:/var/run/qgis-server-1.sock;
   server unix:/var/run/qgis-server-2.sock;
   server unix:/var/run/qgis-server-3.sock;
   server unix:/var/run/qgis-server-4.sock;
}

server {
    listen 8081;
    root /var/www/html/qgis;
    index index.php index.html index.htm;

    location / {
        try_files $uri $uri/ =404;
 }

    location ^~ /qgisserver {
         gzip           off;
         include        fastcgi_params;
         fastcgi_pass   unix:/var/run/qgisserver.socket;
    }
}

Both QGIS Server and Lizmap are working. The WMS URL is set to

http://77.64.216.135:8081/qgisserver.

QGIS Desktop on my Laptop is version 3.22, QGIS on the Raspberry Pi version 3.22.16. I am not sure how to get the version of QGIS-Server, but I am pretty sure that it is 3.22 as well. Can this somehow be fixed, or should I try to run QGIS-Server on apache2 and use NGINX with reverse proxy?

if $QGIS_SERVER_LIZMAP_REVEAL_SETTINGS; then echo 'var is 0'; fi

returns var is 0 after booting the server and all the other environment variables like QGIS_PLUGIN_PATH are empty as well.

Answer 1

I managed to set the environment variables with QGIS running on apache2 (behind NGINX reverse proxy, Lizmap still on NGINX).

Lizmap "Configuration cannot be used"

Still I would like to know what I missed for the fastcgi_param environment variables to work with nginx.