66 lines
1.6 KiB
Ruby
66 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Database
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module Migrations
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module RunnerBackoff
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class Communicator
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EXPIRY = 1.minute
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KEY = 'gitlab/database/migration/runner/backoff'
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def self.execute_with_lock(migration, &block)
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new(migration).execute_with_lock(&block)
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end
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def self.backoff_runner?
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return false if ::Feature.disabled?(:runner_migrations_backoff, type: :ops)
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Gitlab::ExclusiveLease.new(KEY, timeout: EXPIRY).exists?
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end
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def initialize(migration, logger: Gitlab::AppLogger)
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@migration = migration
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@logger = logger
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end
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def execute_with_lock
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log(message: 'Executing migration with Runner backoff')
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set_lock
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yield if block_given?
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ensure
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remove_lock
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end
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private
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attr_reader :logger, :migration
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def set_lock
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raise 'Could not set backoff key' unless exclusive_lease.try_obtain
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log(message: 'Runner backoff key is set')
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end
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def remove_lock
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exclusive_lease.cancel
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log(message: 'Runner backoff key was removed')
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end
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def exclusive_lease
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@exclusive_lease ||= Gitlab::ExclusiveLease.new(KEY, timeout: EXPIRY)
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end
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def log(params)
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logger.info(log_params.merge(params))
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end
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def log_params
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{ class: migration.name }
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end
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end
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end
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end
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end
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end
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