So I was tearing my hair out trying to figure out why attempts to push via DAV to a git repo were failing.
Eventually I succeeded in stracing the httpd process sto capture the request. It was getting an EROFS when it tried to write to the git repo.
Amusing.
To make a long story short, the culprit was:
ProtectHome=read-only
in /lib/systemd/system/httpd.service,(the git repo was in a directory inside a mounted /home partition).
I tried using
systemctl edit httpd
And putting this in there:
[Service] ProtectHome=
However this apparently did not work. I threw in the towel and just edited /lib/systemd/system/httpd.service and commented this setting out, entirely, to finally fix this issue, and happy git pushing resumed.
But how do I fix this so that the next apache update doesn't clobber this?