Add an alert to warn about `gitops` keyword deprecation

What does this MR do and why?

This MR adds an alert on the Kubernetes clusters page to warn our users about the deprecation of the gitops keyword for the agent configuration.

We create a list of all agent configuration files that are present in the current project. Then, we request the raw files one by one and parse the response searching for the gitops keyword. We stop requesting files once the gitops keyword is found.

This way we can show the alert only to the users who are affected by the deprecation.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

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

How to set up and validate locally

1. Visit Operate -> Kubernetes clusters page by clicking Connect a cluster button.
2. Create a could of agents
3. Add configuration files to the agents by creating the file under .gitlab/agents/<your-agent-name>/config.yaml
4. Use gitops keyword in the yaml file, for example

   gitops:
     manifest_projects:
     - id: <your-project-path>

5. Visit Operate -> Kubernetes clusters page again and verify the alert.

Related to #440179 (closed)

changed milestone to %16.10

added Category:Kubernetes Management GitLab Free GitLab Premium GitLab Ultimate Technical Writing deprecation devopsdeploy frontend groupenvironments maintenanceremoval sectioncd typemaintenance workflowready for development labels

assigned to @anna_vovchenko

changed milestone to %16.9

added 1 commit

• 0ce9b9f0 - Add alert about the gitops keyword deprecation

Compare with previous version

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Category	Reviewer	Maintainer
frontend	@slashmanov (UTC+4, 2 hours ahead of author)	@shampton (UTC-7, 9 hours behind author)

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Generated by Danger

changed title from Draft: Add an alert {-for the users who has deprecated gitops keyword in their agent's configur-}ation to Draft: Add an alert {+to warn about gitops keyword deprec+}ation

Bundle size analysis [beta]

This compares changes in bundle size for entry points between the commits 29987dc9 and 9591085b

Special assets

Entrypoint / Name	Size before	Size after	Diff	Diff in percent
average	4.13 MB	4.13 MB	-	0.0 %
mainChunk	3.13 MB	3.13 MB	-	0.0 %

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E2E Test Result Summary

allure-report-publisher generated test report!

e2e-test-on-gdk: test report for 9591085b

expand test summary

+------------------------------------------------------------------+
|                          suites summary                          |
+-------------+--------+--------+---------+-------+-------+--------+
|             | passed | failed | skipped | flaky | total | result |
+-------------+--------+--------+---------+-------+-------+--------+
| Plan        | 53     | 0      | 0       | 0     | 53    | ✅     |
| Govern      | 65     | 0      | 1       | 0     | 66    | ✅     |
| Create      | 53     | 0      | 12      | 0     | 65    | ✅     |
| Release     | 5      | 0      | 0       | 0     | 5     | ✅     |
| Data Stores | 31     | 0      | 1       | 0     | 32    | ✅     |
| Verify      | 31     | 0      | 0       | 0     | 31    | ✅     |
| Package     | 14     | 0      | 2       | 0     | 16    | ✅     |
| Monitor     | 7      | 0      | 0       | 0     | 7     | ✅     |
| Manage      | 0      | 0      | 1       | 0     | 1     | ➖     |
| Analytics   | 2      | 0      | 0       | 0     | 2     | ✅     |
+-------------+--------+--------+---------+-------+-------+--------+
| Total       | 261    | 0      | 17      | 0     | 278   | ✅     |
+-------------+--------+--------+---------+-------+-------+--------+

e2e-review-qa: test report for 9591085b

expand test summary

+------------------------------------------------------------------+
|                          suites summary                          |
+-------------+--------+--------+---------+-------+-------+--------+
|             | passed | failed | skipped | flaky | total | result |
+-------------+--------+--------+---------+-------+-------+--------+
| Create      | 2      | 6      | 3       | 0     | 11    | ❌     |
| Monitor     | 0      | 4      | 0       | 0     | 4     | ❌     |
| Govern      | 0      | 3      | 0       | 0     | 3     | ❌     |
| Plan        | 0      | 3      | 1       | 0     | 4     | ❌     |
| Data Stores | 0      | 2      | 0       | 0     | 2     | ❌     |
| Package     | 0      | 0      | 1       | 0     | 1     | ➖     |
+-------------+--------+--------+---------+-------+-------+--------+
| Total       | 2      | 18     | 5       | 0     | 25    | ❌     |
+-------------+--------+--------+---------+-------+-------+--------+

mentioned in merge request !143649 (merged)

marked this merge request as ready

@lorenzvanherwaarden, could you please do the initial frontend review?

added UX workflowready for review labels and removed workflowready for development label

requested review from @lorenzvanherwaarden

@ipelaez1, could you please do the UX review? Please let me know if you face any issues with the setup

requested review from @ipelaez1

approved this merge request