gitlab-org--gitlab-foss/app/services/ci/queue/builds_table_strategy.rb

67 lines
2.2 KiB
Ruby

# frozen_string_literal: true
module Ci
module Queue
class BuildsTableStrategy
attr_reader :runner
def initialize(runner)
@runner = runner
end
# rubocop:disable CodeReuse/ActiveRecord
def builds_for_shared_runner
relation = new_builds
# don't run projects which have not enabled shared runners and builds
.joins('INNER JOIN projects ON ci_builds.project_id = projects.id')
.where(projects: { shared_runners_enabled: true, pending_delete: false })
.joins('LEFT JOIN project_features ON ci_builds.project_id = project_features.project_id')
.where('project_features.builds_access_level IS NULL or project_features.builds_access_level > 0')
if Feature.enabled?(:ci_queueing_disaster_recovery_disable_fair_scheduling, runner, type: :ops, default_enabled: :yaml)
# if disaster recovery is enabled, we fallback to FIFO scheduling
relation.order('ci_builds.id ASC')
else
# Implement fair scheduling
# this returns builds that are ordered by number of running builds
# we prefer projects that don't use shared runners at all
relation
.joins("LEFT JOIN (#{running_builds_for_shared_runners.to_sql}) AS project_builds ON ci_builds.project_id = project_builds.project_id")
.order(Arel.sql('COALESCE(project_builds.running_builds, 0) ASC'), 'ci_builds.id ASC')
end
end
def builds_matching_tag_ids(relation, ids)
# pick builds that does not have other tags than runner's one
relation.matches_tag_ids(ids)
end
def builds_with_any_tags(relation)
# pick builds that have at least one tag
relation.with_any_tags
end
def order(relation)
relation.order('id ASC')
end
def new_builds
::Ci::Build.pending.unstarted
end
def build_ids(relation)
relation.pluck(:id)
end
private
def running_builds_for_shared_runners
::Ci::Build.running
.where(runner: ::Ci::Runner.instance_type)
.group(:project_id)
.select(:project_id, 'COUNT(*) AS running_builds')
end
# rubocop:enable CodeReuse/ActiveRecord
end
end
end