Shibboleth cannot create cache folder

[Peter Schober]

* Marina Krenz <mvkrenz at ren-isac.net> [2020-10-06 17:28]:
> I am running it in aws (Amazon Linux 2/3.1.1)
> 
> these are the commands I run to install
> 
>  curl --output /etc/yum.repos.d/security:shibboleth.repo 
> https://download.opensuse.org/repositories/security:/shibboleth/CentOS_7/security:shibboleth.repo

Note the yellow box with the warning on this page?
https://wiki.shibboleth.net/confluence/display/SP3/LinuxInstall

"Use the Correct RPM or not at all
Under no circumstances should you attempt to install a set of RPM
packages built for/with a different OS or version from your own. This
will usually lead to unpredictable problems and support
issues. Instead, just rebuild the SRPM packages and make sure you have
a repeatable process to incorporate security patch updates promptly."

The above also contains the workaround needed.

Best,
-peter