Bump Bundler version to latest as of 2020-06-02

Use only sidekiq cluster

See merge request gitlab-org/build/CNG!680

And remove support for running without cluster

remove references to Unicorn for 14.0 release

See merge request gitlab-org/build/CNG!665

Allow ubi-release-for-certification job to fail

See merge request gitlab-org/build/CNG!676

Update to UBI 8.4

Closes gitlab-org/charts/gitlab#2740

See merge request gitlab-org/build/CNG!677

Fix registry healthcheck

See merge request gitlab-org/build/CNG!675

And also add it for the non-ubi images

gitlab-rails: checks/postgresql detect silent NoDatabaseError

See merge request gitlab-org/build/CNG!663

Pin versions of perl and perl-libnetcfg in UBI

See merge request gitlab-org/build/CNG!673

Signed-off-by: Balasankar "Balu" C <balasankar@gitlab.com>

Signed-off-by: Balasankar "Balu" C <balasankar@gitlab.com>

This reverts merge request !670

Add Gomplate to gitlab-workhorse image

See merge request gitlab-org/build/CNG!670

Add Gomplate to gitlab-pages image

See merge request gitlab-org/build/CNG!669

Add Gomplate to gitlab-shell image

See merge request gitlab-org/build/CNG!668

gitlab-ruby: add exec-env script

See merge request gitlab-org/build/CNG!667

Install libarchive as a dependency for CMake

See merge request gitlab-org/build/CNG!671

Check external script integrity

See merge request gitlab-org/build/CNG!666

Add `/scripts/exec-env` which will find any/all files directly under
`/etc/gitlab/environment` and export them as environment variables
before `exec`ing the final process.

1. It will only operate within `/etc/gitlab/environment` directory.
1. It will search `/etc/gitlab/environment` for files only, depth 1.
1. It will only export them if they have content (size in bytes > 0).

Relates to https://gitlab.com/gitlab-org/charts/gitlab/-/issues/2725

Insert gomplate into service containers that do not need Ruby

See merge request gitlab-org/build/CNG!658

Add pages to the the list of buckets that must be backed up

Closes gitlab-org/charts/gitlab#2713

See merge request gitlab-org/build/CNG!661

Upgrade mailroom to v0.0.12

See merge request gitlab-org/build/CNG!664

This pulls in some minor upstream changes, particularly an improvement
in the Microsoft Graph error handling:
https://github.com/tpitale/mail_room/pull/127

Diff:
https://my.diffend.io/gems/gitlab-mail_room/0.0.11/0.0.12

Changelog: changed

Resolve #2627 CNG: UBI Containers - LIBDIR not defined for users who do not use our build image

Closes gitlab-org/charts/gitlab#2627

See merge request gitlab-org/build/CNG!648

Update ubi builder Dockerfile LIBDIR entry to specify a default but allow override by existing ENV variable

`ActiveRecord::ConnectionHandling.postgresql_connection(config)` will
emit `ActiveRecord::NoDatabaseError` when `PG::Error` includes the name
in `production.database` of `database.yml`. This is to indicate a
problem accessing the database shema, but not the database server.

This error is silenced by `ActiveRecord::MigrationContent.current_version`
which results in a `nil` return. This `nil` is not the same as `0`, and
needs to be treated differntly, as it indicated that we could not
determine the version of the schema within the database, because we were
unable to access the configured database name.

Found in https://gitlab.zendesk.com/agent/tickets/212382

References:

- https://github.com/rails/rails/blob/v6.0.3.6/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb#L48-L54
- https://github.com/rails/rails/blob/v6.0.3.6/activerecord/lib/active_record/migration.rb#L1090-L1093

Changelog: Added

Cleanup Puma 5 upgrade transition code

See merge request gitlab-org/build/CNG!662

gitlab-rails: remove ee/spec/ if present

See merge request gitlab-org/build/CNG!659