portus: documentation is missing lots of information

[mssola]

The documentation for portus on SLE is missing a lot of information.

For starters:

Portus is accessible for SLES customers as a Docker image.

This is missing the location where this Docker image can be pulled: the SUSE Container Registry. Portus 2.4 has been released there as a Docker image and it's based on SLE, so customers shouldn't be pulling from Dockerhub, ever. And they should not be looking at the containers module either.

For more information and documentation about Portus, see: http://port.us.org/docs/deploy.html.

This is true, but it's missing quite a lot of info. The difference between the community and the customer-supported version of the Docker image resides only on the base image and how we build said images (the community version is built on Dockerhub, the customer one on IBS). Besides that, there's no real difference: it's the same code. So, setting up the customer-supported version and maintaining it is exactly the same as doing so with the community image. This part of the documentation should be more clear on this because otherwise, customers can get lost.

Moreover, as explained on this page, we also provide some examples on how to deploy Portus here. Maybe it would be worth it to also write this here.