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