Use site-specific lists of recipes in the RTW

[ehogan]

I realised as I was adding recipes to run on DKRZ (via #3708) that those recipes would not be able to run at other sites, since the resources wouldn't be defined (so the recipes would likely run out of time and / or memory, using the default resources).

After a quick discussion with @alistairsellar, we agreed to use site-specific lists of recipes (@alistairsellar mentioned that the RTW running on JASMIN began to fail due to recent additions of recipes that were introduced at the MO).

[chrisbillowsMO]

If you exclude a recipe that has custom directives, you get this quite vague error:

ParamExpandError: parameter fast out of range: fast=recipe_ocean_multimap

[chrisbillowsMO]

I used {% from 'inc/' ~ SITE ~ '-recipes.cylc' import FAST_RECIPES, MEDIUM_RECIPES %} because the more comprehensive {% include 'inc/' ~ SITE ~ '-recipes.cylc' %} wasn't working.

The Jinja2 docs suggest {% include 'inc/' ~ SITE ~ '-recipes.cylc' with context %} should resolve the problem - but it didn't.

I didn't try the Cylc docs namespace solution - it seemed more complex than the import solution.

[chrisbillowsMO]

• Q: I used is defined rather than != "" to avoid setting FAST/MEDIUM_RECIPES in the rose-suite.conf - but perhaps better that they are done the same way as SITE (or SITE is changed to work with is_defined too?).

Confirmed fine as is.