Bugfix/fp 1652 template load order

[wesleyboar]

To Do

• Try to not change base settings to settings_custom.
• Consider piecemeal solutions.
• Testing
• Screenshots (or deploys)

Overview

To install apps and load templates the order Django CMS expects:

1. TACC CMS custom (e.g. Frontera)
2. TACC CMS base (i.e. Core)
3. CMS Blog app

Related

• FP-1652
• required by Bugfix/fp 1652 template inheritance Core-CMS-Resources#142

Changes

1. [feature] pass project name to cms container as env var
2. [warning] load settings_custom instead of settings ⚠️
3. [enhancement] extract template directory paths to a script
4. [feature] create and use tacc variables for custom project path
5. [feature] fix template inheritance
   • [enhancement] allow core cms to properly override 3rd-party apps
   • [feature] allow custom cms to overwrite core cms and 3rd-party apps
6. [warning] require custom app to load settings_local ⚠️
7. [chore] simplify blog install syntax
8. [docs] update templates/README
9. [chore] fix/simplify blog template tweak
10. [chore] (submod: texascale, ecep) simplify blog install syntax

_{⚠️ This undesirably requires settings_custom to run CMS. I may be able to revert this change safely, because it may have been a part a fix that is actually not necessary.}

Testing

Screenshots

…

Notes

The annual benefit (minor) is to support custom Texascale blog styles each year.

This is a small part of FP-1439.

The occasional benefit (convenience) is overriding a Core template without editing settings_custom.

This is performed here via TACC/Core-CMS-Resources#142.

The onboarding benefit (standardization) is relying on Django template inheritance.

The previous template customization method was template replacement.

[wesleyboar]

Abandoned because this is so out-of-date (many merge conflicts) and because https://github.com/TACC/Core-CMS-Custom relies on overwriting templates. Rather than fight that in favor of template inheritance (which I have failed to make work for three years), I abandon template inheritance.

[wesleyboar]

Replaced by #710.