Use EPEL Lmod

[wpoely86]

FYI: you can use the Lmod from EPEL and only put the config stuff in a repo. Example on https://github.com/vub-hpc/Lmod-config

And some quattor:

unique template common/lmodvub/config;

include 'metaconfig/lmod/config';

prefix "/software/components/metaconfig/services/{/etc/lmodrc.lua}/contents";

"prop" = dict();

"scDescript/0" = dict(
    "timestamp", '/apps/brussel/" .. (os.getenv("VSC_OS_LOCAL") or "") .. "/" .. os.getenv("VSC_ARCH_LOCAL") .. ' +
                '(os.getenv("VSC_ARCH_SUFFIX") or "") .. "/cacheDir/system.txt',
    "dir", '/apps/brussel/" .. (os.getenv("VSC_OS_LOCAL") or "").. "/" .. os.getenv("VSC_ARCH_LOCAL") .. ' +
            ' (os.getenv("VSC_ARCH_SUFFIX") or "") .. "/cacheDir',
);

# cache for CentOS-7 legacy-software
"scDescript/1" = dict(
    "timestamp", '/apps/brussel/CO7/" .. os.getenv("VSC_ARCH_LOCAL") .. ' +
                '(os.getenv("VSC_ARCH_SUFFIX") or "") .. "/cacheDir/system.txt',
    "dir", '/apps/brussel/CO7/" .. os.getenv("VSC_ARCH_LOCAL") .. ' +
            ' (os.getenv("VSC_ARCH_SUFFIX") or "") .. "/cacheDir',
);

prefix "/software/components/metaconfig/services";

# TODO: add proper schema support

'{/etc/lmod/lmod_config.lua}' = create('metaconfig/generic/multiline');
'{/etc/lmod/lmod_config.lua}/mode' = 0644;
'{/etc/lmod/lmod_config.lua}/contents' = list(
    'require("strict")',
    'local cosmic = require("Cosmic"):singleton()',
    'cosmic:assign("LMOD_ADMIN_FILE", "/etc/lmod/admin.list")',
    'cosmic:assign("LMOD_AUTO_SWAP", "no")',
    'cosmic:assign("LMOD_CACHED_LOADS", "yes")',
    'cosmic:assign("LMOD_CASE_INDEPENDENT_SORTING", "yes")',
    'cosmic:assign("LMOD_DISABLE_SAME_NAME_AUTOSWAP", "yes")',
    'cosmic:assign("LMOD_EXTENDED_DEFAULT", "no")',
    'cosmic:assign("LMOD_PACKAGE_PATH", "/etc/lmod")',
    'cosmic:assign("LMOD_PIN_VERSIONS", "yes")',
    'cosmic:assign("LMOD_REDIRECT", "yes")',
    'cosmic:assign("LMOD_SHORT_TIME", 86400)',
    'cosmic:assign("LMOD_SITE_MSG_FILE", "/etc/lmod/lang.lua")',
    'cosmic:assign("LMOD_SITE_NAME", "VUB_HPC")',
);

[boegel]

That makes sense in general, unless when a breaking change slips in a bug fix release that introduces an incompatibility with EasyBuild:

• incompatibility with Lmod 8.7.56 due to module show producing non-zero exit code for non-existent module easybuilders/easybuild-framework#4759

[wpoely86]

We only had on issue once with this. And if you really worry, version lock it.