Moodle 3.9.x LTS for IIAB 7.2 (installs libapache2-mod-php{{ php_version }} within httpd/tasks/install.yml for now)

[holta]

To resolve #2390

Testing ongoing on Ubuntu Server 20.04 LTS = 10.8.0.30 = 191-moodle39

[holta]

Test also underway on RaspiOS Lite @ 10.8.0.26 = 181-rpi4-1g-lite-moodle39

[holta]

@tim-moody @georgejhunt do you know why http://box.lan/moodle/admin/index.php fails ("File not found.") but http://box.lan:8090/moodle/admin/index.php works ?

As if the shim proxying from NGINX to Apache port 8090 is not working?

I'm assuming the (longstanding) problem is likely in https://github.com/iiab/iiab/blob/master/roles/moodle/templates/moodle-nginx.conf.j2 i.e. /etc/nginx/conf.d/moodle-nginx.conf but can you confirm?

[holta]

Testing ongoing on Ubuntu Server 20.04 LTS = 10.8.0.30 = 191-moodle39

FYI this (virtual) machine moved to 10.8.0.62 overnight.

[holta]

FYI this at least moves the ball forward (towards cleaner install of Moodle, Elgg etc) so I'm merging it now.

As discussed during our weekly IIAB call this morning (http://minutes.iiab.io) we don't know (yet!) know whether Moodle's Shim should be quick-fixed...or possibly Moodle should be served directly over NGINX?