Docs - Flesh out Praefect documentation

See merge request gitlab-org/gitlab!19418

Docs: fix a typo

See merge request gitlab-org/gitlab!19497

Add a note about feature not being available yet

See merge request gitlab-org/gitlab!19225

- Since the self-monitoring project was not released in the planned
milestone, but the documentation did get released, update the docs now
to note that the feature is not yet available.

Backend: Add checkbox to enable/disable grafana authentication

See merge request gitlab-org/gitlab!19234

In example use "remove_concurrent_index" instead of "remove_index"

See merge request gitlab-org/gitlab!19306

Fix the CI config for the 'review-stop' job

See merge request gitlab-org/gitlab!19459

Merge branch '35337-images-stopped-loading-signed-urls-of-uploads-expire-earlier-than-redirect-cache' into 'master'

Resolve "images stopped loading: signed URLs of uploads expire earlier than redirect cache"

See merge request gitlab-org/gitlab!19494

Expose cycle analytics summary separately

See merge request gitlab-org/gitlab!19229

This change exposes the summary counts for group level cycle analytics
via a separate endpoint while making sure the old CA implementation is
still working.

Setting a long-term cache header works fine when not using object
storage, or when using object storage with proxy_download enabled. When
using object storage _without_ proxy_download, we send a redirect that's
cached for six months to a signed URL in object storage, but the signed
URL only works for ten minutes. So once those ten minutes are up, the
browser will keep following the (cached) redirect to a dead link.

In future, we could be more sophisticated by setting the TTL based on
the settings we're using. For now, just set this back to the pre-12.4
state of not caching content for longer than 5 minutes.

Add guard to avoid misleading error message

See merge request gitlab-org/gitlab!19487

Update plantuml.md with URI rewrite for nginx

See merge request gitlab-org/gitlab!19163

Revert "Merge branch 'mc/backstage/needs-canonical-form' into 'master'"

See merge request gitlab-org/gitlab!19479

Update praefect git_data_dirs setup

Closes gitaly#2111

See merge request gitlab-org/gitlab!19040

Add API for suggesting unique alternatives if username exists

See merge request gitlab-org/gitlab!19303

This reverts merge request !17539

Replace end-to-end test by rspec test

Closes #33549

See merge request gitlab-org/gitlab!19445

Extend gRPC timeouts for Rake tasks

Closes #22398

See merge request gitlab-org/gitlab!19461

Edited notifications docs

See merge request gitlab-org/gitlab!19341

* Edited and restructured notification docs to improve
clarity.
* Issue: https://gitlab.com/gitlab-org/gitlab/issues/31710

Remove non-api tests from api spec

Closes #32903

See merge request gitlab-org/gitlab!19219

Fix file locking spec and quarantine locks directory spec

See merge request gitlab-org/gitlab!19380

Test was quarantined due to a bug: https://gitlab.com/gitlab-org/gitlab/issues/35254
Changed hardcoded "Adminstrator" in expectation to a username

In https://gitlab.com/gitlab-org/gitlab/merge_requests/16926 we added
gRPC timeouts for calls that did not previously have timeouts to prevent
Sidekiq queries from getting stuck. In addition, we also made long
timeouts 55 seconds for non-Sidekiq requests, but this meant Rake tasks
also fell into this bucket. Rake backup tasks with large repositories
would fail because the CreateBundle RPC would time out after 55 seconds.

To avoid this trap, we flip the logic of long_timeout: instead of
checking for Sidekiq (or other background jobs), we only lower the
timeout to 55 seconds if we're servicing a Web request in Puma or
Unicorn.

Closes https://gitlab.com/gitlab-org/gitlab/issues/22398

Update github_integration.md

See merge request gitlab-org/gitlab!19452

Correct typo in documentation

See merge request gitlab-org/gitlab!19462

Update docs to show how to make report artifact downloadable

See merge request gitlab-org/gitlab!19426

GitLab EKS Cluster backend services

See merge request gitlab-org/gitlab!16758

Add a machine-readable graphql schema

See merge request gitlab-org/gitlab!19199

Add `edit` endpoint for Release page

See merge request gitlab-org/gitlab!17858

There are several steps to this process:

* GitLab assumes the role provided by the user and stores
  a set of temporary credentials on the provider record. By default
  these credentials are valid for one hour.

* A CloudFormation stack is created, based on the template in
  vendor/aws/cloudformation/eks_cluster.yaml. This triggers creation
  of all resources required for an EKS cluster.

* GitLab polls the status of the stack until all resources are ready,
  which takes somewhere between 10 and 15 minutes in most cases.

* When the cluster is ready, GitLab stores the cluster details and
  fetches another set of temporary credentials, this time to allow
  connecting to the cluster via Kubeclient. These credentials
  are valid for one minute.

* GitLab configures the worker nodes so that they are able to
  authenticate to the cluster, and creates a service account for
  itself for future operations.

* Finally, all details and credentials that are no longer required
  are removed.

Updated to kubectl v1.13.12 and helm v2.15.1

See merge request gitlab-org/gitlab!18924