Remove duplicate documentation

[fulldecent]

The documentation is currently hosted at:

• https://podman.io (canonical)
• https://docs.podman.io (extra copy, with ads)

Please remove the docs.podman.io version and redirect it to the apex domain. Having the documentation in only one place makes it easier to find and maintain.

[fulldecent]

Actually, I'm not even sure if this is a duplicate or how this website works. But it would be ideal if the entire website was checked into the /docs/ folder in this repository and the whole thing was hosted from GitHub Pages onto one domain name.

[TomSweeneyRedHat]

@fulldecent, it's a bit messier than that, unfortunately. The documentation lives on readthedocs.org, and with each build, any new updates are moved there from Podman's GitHub repo, https://github.com/containers/podman/tree/main/docs/source. Then via some DNS hackery, we translate docs.podman.io to the ReadTheDocs site.

We've had conversations in the past and haven't landed on a cleaner spot to drop stuff, but still open for suggestions/thoughts. The other thing to consider is we're looking into moving the podman-py docs into the same place eventually.

[fulldecent]

Ah, okay, so it's:

• https://github.com/containers/podman.io ----GitHub Pages----> podman.io
• https://github.com/containers/podman ----ReadTheDocs/tricks ----> docs.podman.io

---

Here is an option that puts everything on one domain:

1. In containers/podman add a GitHub Action for each commit to main branch:
   1. Checkout containers/podman and containers/podman.io
   2. Copy podman/docs to podman.io/docs
   3. Commit
2. Now the docs from the project are published at https://podman.io/docs
3. Convert RST to MD or make any changes so the site works
4. Update links to point to the new location.

This can be done incrementally. So step 1 can be done in production and changes can be made into production, cutover can happen after it works.

A downside of this approach is that the Jekyll configuration lives in containers/podman.io but most content lives in containers/podman. This is harder to perfect styles when running locally.

---

Here's an easier continuing with two domains:

1. Publish containers/podman using GitHub Pages to the default location of https://containers.github.io/podman
2. Make everything look good
3. Publish a "CNAME" file of docs.podman.io into the repo
4. Cut over DNS to host the documentation from GitHub Pages (like how podman.io is now doing)

[TomSweeneyRedHat]

@fulldecent I think it's more like:

* https://github.com/containers/podman.io ----GitHub Pages--pushes to--> podman.io
* https://github.com/containers/podman/docs/source ----ReadTheDocs/tricks ---pushes to-> ReadTheDocs
* docs.podman.io --points to--> ReadTheDocs

The last one is through some special settings in DNS and the ReadTheDocs website.

The thought that I had muddling around in my noggins was similar to your last one. Moving the docs directory from the podman
repo and putting it in the podman.io GitHub repo. That way I could also potentially move the docs stuff from the podman-py repo into the podman.io repo too.

[rhatdan]

The problem moving the docs directory somewhere else is it would eliminate PRs from checking to make sure new options are documented. With @edsantiago new changes to how we build the content, there is a chance we could link the man pages across.