Add a designs model

See merge request gitlab-org/gitlab-ee!9801

Refactor AutoDevOps test to one test with two expectations

See merge request gitlab-org/gitlab-ce!25836

Fix Go guide link in style guides

See merge request gitlab-org/gitlab-ee!9878

Changes required for CE MR

See merge request gitlab-org/gitlab-ee!9967

Add table entries from EE docs

See merge request gitlab-org/gitlab-ce!25995

Add core-js polyfill for Promise.finally()

See merge request gitlab-org/gitlab-ce!25925

Fix health checks not working behind load balancers

Closes #58573

See merge request gitlab-org/gitlab-ce!26055

Seed tablesample strategy

Closes #58791

See merge request gitlab-org/gitlab-ce!25966

The change in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24199 caused
requests coming from a load balancer to arrive as 127.0.0.1 instead of
the actual IP.

`Rack::Request#ip` behaves slightly differently different than
`ActionDispatch::Request#remote_ip`: the former will return the first
X-Forwarded-For IP if all of the IPs are trusted proxies, while the
second one filters out all proxies and falls back to REMOTE_ADDR, which
is 127.0.0.1.

For now, we can revert back to using `Rack::Request` because these
middlewares don't manipulate parameters. The actual fix problem involves
fixing Rails: https://github.com/rails/rails/issues/28436.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58573

This produces stable approximate counts among invocations unless the
table changed.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58791.

Merge branch '58739-hashed-storage-prevent-a-migration-and-rollback-running-at-the-same-time' into 'master'

Hashed Storage: Prevent a migration and rollback running at the same time

Closes #58739

See merge request gitlab-org/gitlab-ce!25976

Backports EE change for expanded pipelines

See merge request gitlab-org/gitlab-ce!26043

Allow gitlab:ui:visual to fail

See merge request gitlab-org/gitlab-ce!26042

Cache Repository#root_ref within a request

Closes #58684

See merge request gitlab-org/gitlab-ce!25903

Geo: Create separate models for different registries

See merge request gitlab-org/gitlab-ee!9755

Fix counting of groups in admin dashboard

Closes gitlab-ee#7435

See merge request gitlab-org/gitlab-ce!26009

Resolve CE to EE differences in the lib/api directory

See merge request gitlab-org/gitlab-ce!25430

Resolve CE to EE differences in the lib/api directory

Closes #9505

See merge request gitlab-org/gitlab-ee!9633

This is a small polishing on the storage migration and storage rollback
rake tasks. By aborting a migration while a rollback is already
scheduled we want to prevent unexpected consequences.

Remove some easy factories from migration specs

See merge request gitlab-org/gitlab-ce!26025

Remove fake repository_path response - resolved issue# 50386

Closes #50386

See merge request gitlab-org/gitlab-ce!25942

The repository_path is no longer needed since
https://gitlab.com/gitlab-org/gitlab-shell/merge_requests/231, which closes
https://gitlab.com/gitlab-org/gitlab-shell/issues/135.

Authenticate the internal API using a header

See merge request gitlab-org/gitlab-ce!25924

The DesignManagement::Version will keep track of different versions of
a design that were uploaded. Every time a new version gets uploaded we
create a new version so we know the last commit that touched the file.

It will also make it easy to track which version was commented on.

The design model will represent one single file uploaded to a
`DesignCollection` linked to an issue.

When an empty project is loaded in the UI, there are 15 separate Gitaly
FindDefaultBranch calls to determine the root_ref. Previously, it was
not cached even within the request. This change caches it within the
request so only a single FindDefaultBranch RPC is needed.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58684