ondemand: Default auth config in 1.8 causes Apache 500 error

Hi,

I noticed that the default authentication configuration in 1.8 was changed from Basic to “Dex” (openid-connect) in https://github.com/OSC/ondemand/commit/5915cbbb8659cb188da80cb5d54551a8ca9944f7 (and the corresponding config file comments were updated in https://github.com/OSC/ondemand/commit/a698fac0bf4bcc984348aa77814f913bc2ec6a31).

As a result, the portal now throws an HTTP 500 error in the default configuration, and logs:

[Mon Aug 17 15:00:31.380929 2020] [authn_core:error] [pid 16] [client 172.20.0.1:42288] AH01796: AuthType openid-connect configured without corresponding module

For example, when using the OOD Docker image source, which installs the OOD packages from the ondemand-release-web-latest repo (currently 1.8.11):

docker system prune -a
docker volume prune
cd ~/projects # or wherever
git clone https://github.com/OSC/ood-images.git ood-images-official
cd ood-images-official/docker-with-slurm
docker-compose up -d --build

Going to http://localhost:8080 shows “Internal Server Error”.

I was able to reproduce this error using Open Ondemand packages for 1.8.11 from the “latest” yum repo, and earlier 1.8 packages. Only downgrading to 1.7 provided a working default configuration.

Also, of secondary concern, the update in https://github.com/OSC/ondemand/commit/a698fac0bf4bcc984348aa77814f913bc2ec6a31 was incomplete. The comment above the modified line still says that the default auth type is Basic.