Apache/httpd error: Invalid command 'WSGIPythonHome'

Question

ISSUE:

My Apache/httpd server will not launch. journalctl -xe reveals:

Feb 27 01:50:12 localhost.localdomain httpd[4398]: AH00526: Syntax error on line 355 of /etc/httpd/conf/httpd.conf:
Feb 27 01:50:12 localhost.localdomain httpd[4398]: Invalid command 'WSGIPythonHome', perhaps misspelled or defined by a module not included in the server configuration
Feb 27 01:50:12 localhost.localdomain systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
Feb 27 01:50:13 localhost.localdomain kill[4399]: kill: cannot find process ""
Feb 27 01:50:13 localhost.localdomain systemd[1]: httpd.service: control process exited, code=exited status=1
Feb 27 01:50:13 localhost.localdomain systemd[1]: Failed to start The Apache HTTP Server.

httpd -S reveals:

AH00526: Syntax error on line 355 of /etc/httpd/conf/httpd.conf:
Invalid command 'WSGIPythonHome', perhaps misspelled or defined by a module not included in the server configuration

SPECS

• CentOS 7 (This is a virtual machine running on an Ubuntu 18.10 host)
• rh-python36 installed
• rh-python36-mod_wsgi-4.5.18-1.el7.x86_64 installed
• python virtual env created at /var/www/web-virt-env

httpd.conf:

WSGIPythonHome /var/www/web-virt-env
WSGIPythonPath /var/www/html/somewebsite

<VirtualHost *:80>

    ServerName awebsite.com
    DocumentRoot /var/www/html/somewebsite
    WSGIDaemonProcess somewebsite1 python-home=/var/www/web-virt-env
    WSGIProcessGroup somewebsite1
    WSGIScriptAlias / /var/www/html/somewebsite/somewebsite/wsgi.py

    <Directory /var/www/html/somewebsite/somewebsite>
            Require all granted
    </Directory>

    Alias /static /var/www/html/somewebsite/static
    <Directory /var/www/html/somewebsite/static>
            Require all granted
    </Directory>

</VirtualHost>

Expected output:

I expected that the site would launch when I executed systemctl start httpd

I am suspicious that rh-python36-mod_wsgi-4.5.18-1.el7.x86_64 isn't being "found," but I'm not sure how this is working behind the scenes.

What can I do to work around this? Or at least, which steps should I take next to trouble shoot this?

Solution

EUREKA!

I was able to fix the problem by adding the following before the httpd.conf additions I have displayed in the question (so, just before WSGIPythonHome /var/www/web-virt-env):

LoadModule wsgi_module /opt/rh/httpd24/root/usr/lib64/httpd/modules/mod_rh-python36-wsgi.so

Comments

[Josh]

This is what I have explained in my answer, placing it before the WSGIPythonHome line, which is before the <VirtualHost> line.

[Andreas Rogge]

The question clearly states that it is a CentOS 7 system, so Debian/Ubuntu packages will not help.