Enable multiple pages jobs

What does this MR do and why?

As part of the introduction of the GitLab Pages Multiple Versions support we need to permit users to create multiple pages jobs.

Users now can create jobs either named pages or use the pages: job option to start a new Pages job. This new option is a hash that accepts enabled (boolean) and path_prefix: (string).

This also replaces the pages_path_prefix option.

jobname:
  pages:
    enabled: true
    path_prefix: 'prefix' # when using multiple versions

Related to: #427755 (closed)

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

changed milestone to %16.5

added Category:Pages devopsplan featureaddition groupknowledge sectiondev typefeature labels

assigned to @kassio

added backend documentation labels

	2 Warnings
	This MR changes code in ee/, but its Changelog commit is missing the EE: true trailer. Consider adding it to your Changelog commits.
	featureaddition and featureenhancement merge requests normally have a documentation change. Consider adding a documentation update or confirming the documentation plan with the Technical Writer counterpart. For more information, see: The Handbook page on merge request types. The definition of done documentation.

Reviewer roulette

Changes that require review have been detected!

Please refer to the table below for assigning reviewers and maintainers suggested by Danger in the specified category:

Category	Reviewer	Maintainer
backend	jpcyiza (UTC+2, 1 hour ahead of @kassio)	felipe_artur (UTC-3, 4 hours behind @kassio)
frontend	dstull (UTC-4, 5 hours behind @kassio)	himkp (UTC+2, 1 hour ahead of @kassio)
~"Verify"	Reviewer review is optional for ~"Verify"	drew (UTC+0, 1 hour behind @kassio)

Please check reviewer's status!

• Reviewer is available!
• Reviewer is unavailable!

Feel free to override these selections if you think someone else would be better-suited or use the GitLab Review Workload Dashboard to find other available reviewers.

To read more on how to use the reviewer roulette, please take a look at the Engineering workflow and code review guidelines. Please consider assigning a reviewer or maintainer who is a domain expert in the area of the merge request.

Once you've decided who will review this merge request, assign them as a reviewer! Danger does not automatically notify them for you.

If needed, you can retry the danger-review job that generated this comment.

Generated by Danger

Allure report

allure-report-publisher generated test report!

e2e-test-on-gdk: test report for 68f743d0

expand test summary

+------------------------------------------------------------------+
|                          suites summary                          |
+-------------+--------+--------+---------+-------+-------+--------+
|             | passed | failed | skipped | flaky | total | result |
+-------------+--------+--------+---------+-------+-------+--------+
| Govern      | 33     | 0      | 0       | 0     | 33    | ✅     |
| Plan        | 55     | 0      | 0       | 0     | 55    | ✅     |
| Create      | 32     | 0      | 5       | 0     | 37    | ✅     |
| Verify      | 8      | 0      | 0       | 0     | 8     | ✅     |
| Manage      | 12     | 0      | 1       | 0     | 13    | ✅     |
| Data Stores | 18     | 0      | 2       | 0     | 20    | ✅     |
+-------------+--------+--------+---------+-------+-------+--------+
| Total       | 158    | 0      | 8       | 0     | 166   | ✅     |
+-------------+--------+--------+---------+-------+-------+--------+

e2e-review-qa: test report for 68f743d0

expand test summary

+-----------------------------------------------------------------------+
|                            suites summary                             |
+------------------+--------+--------+---------+-------+-------+--------+
|                  | passed | failed | skipped | flaky | total | result |
+------------------+--------+--------+---------+-------+-------+--------+
| Create           | 8      | 0      | 1       | 0     | 9     | ✅     |
| Plan             | 54     | 0      | 1       | 0     | 55    | ✅     |
| Package          | 0      | 0      | 1       | 0     | 1     | ➖     |
| Manage           | 1      | 0      | 0       | 0     | 1     | ✅     |
| Framework sanity | 0      | 0      | 1       | 0     | 1     | ➖     |
| Data Stores      | 1      | 0      | 1       | 0     | 2     | ✅     |
| Monitor          | 4      | 0      | 0       | 0     | 4     | ✅     |
| Govern           | 2      | 0      | 0       | 0     | 2     | ✅     |
+------------------+--------+--------+---------+-------+-------+--------+
| Total            | 70     | 0      | 5       | 0     | 75    | ✅     |
+------------------+--------+--------+---------+-------+-------+--------+

added 39 commits

• 6d25ded2...60fde97a - 38 commits from branch master
• 4eb05300 - Enable multiple pages jobs

Compare with previous version

added 1 commit

• 78e8cfcc - Enable multiple pages jobs

Compare with previous version

changed the description

added 1 commit

• 2cd0e302 - Enable multiple pages jobs

Compare with previous version

added pipeline:run-all-rspec label

added 374 commits

• 2cd0e302...a59fad6c - 373 commits from branch master
• 107f8175 - Enable multiple pages jobs

Compare with previous version

added 1 commit

• 1964d345 - Enable multiple pages jobs

Compare with previous version

requested review from @kassio

removed review request for @kassio

@mfanGitLab, could you do the backend review of this one, please?

requested review from @mfanGitLab

@drew, could you do the ~Verify review of this one, please?

requested review from @drew

marked this merge request as ready