[2.10.0] - Update SAML Pages with SLO Feature

[sunilarjun]

Added information regarding new feature SAML SLO configuration through Rancher UI in SAML pages. Rancher issue link for reference: rancher/dashboard#10941

Fixes docs issue #1331

[martyav]

Since we have so many "Merge on release" PRs for 2.9.0 and 2.8.6, I'm going to remove the label and add a "DO NOT MERGE" so that there's less confusion on the next release day

[sunilarjun]

Hello @aalves08! I am not able to tag you as a reviewer but would you be able to look over the content addition and see if there is anything missing or that needs to be adjusted for the configuration steps, thank you!

[btat]

If this is applicable to all SAML providers, Microsoft AD FS and Shibboleth are missing.

Not a blocker, but since this block is repeated multiple times per version it may be worth putting it in a partial/shared-files (similar to #1142) to keep things DRY.

[sunilarjun]

@btat Added the content to Microsoft AD FS/Shibboleth/translation pages, as well as added _configure-slo.md file to shared files to go the partial route, thanks for reviewing!

[btat]

@sunilarjun can you update the base branch to v2.10.0 so that we don't publish the changes to /docs right away when this gets merged. Everything else LGTM. Will submit approval after the base change.

[sunilarjun]

@btat Just updated base branch, thanks for catching!

[aalves08]

@sunilarjun, sorry for the late reply, but I've been held up with other topics

The _configure-slo looks fine. I would just add that the UI part about the Log Out behavior will only appear if that particular SAML provider allows for SAML SLO. Some may not provide that option, but I've only tested it with Okta so take that with a grain of salt (meaning that the backend will send a flag logoutAllSupported, which is the trigger for the UI to show the Log Out behavior UI part).

If the Log Out behavior UI is not available for a SAML provider, it means that the backend hasn't deemed it supported.

Probably worth mentioning because it may reduce number of support issues being filed 🙏

[sunilarjun]

Hello @aalves08 thanks for the response! I added in a note in this docs PR here that hopefully clarifies, let me know if any other edits are needed. Thank you!

[aalves08]

That's perfect @sunilarjun 🙏 Thank you 🙇