108 lines
3.3 KiB
Ruby
108 lines
3.3 KiB
Ruby
# frozen_string_literal: true
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class Admin::SystemCheck::ElasticsearchCheck < Admin::SystemCheck::BaseCheck
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INDEXES = [
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InstancesIndex,
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AccountsIndex,
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TagsIndex,
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StatusesIndex,
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].freeze
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def skip?
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!current_user.can?(:view_devops)
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end
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def pass?
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return true unless Chewy.enabled?
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running_version.present? && compatible_version? && cluster_health['status'] == 'green' && indexes_match? && preset_matches?
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rescue Faraday::ConnectionFailed, Elasticsearch::Transport::Transport::Error
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false
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end
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def message
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if running_version.blank?
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Admin::SystemCheck::Message.new(:elasticsearch_running_check)
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elsif !compatible_version?
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Admin::SystemCheck::Message.new(
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:elasticsearch_version_check,
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I18n.t(
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'admin.system_checks.elasticsearch_version_check.version_comparison',
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running_version: running_version,
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required_version: required_version
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)
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)
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elsif !indexes_match?
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Admin::SystemCheck::Message.new(
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:elasticsearch_index_mismatch,
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mismatched_indexes.join(' ')
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)
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elsif cluster_health['status'] == 'red'
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Admin::SystemCheck::Message.new(:elasticsearch_health_red)
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elsif cluster_health['number_of_nodes'] < 2 && es_preset != 'single_node_cluster'
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Admin::SystemCheck::Message.new(:elasticsearch_preset_single_node, nil, 'https://docs.joinmastodon.org/admin/optional/elasticsearch/#scaling')
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elsif Chewy.client.indices.get_settings[Chewy::Stash::Specification.index_name]&.dig('settings', 'index', 'number_of_replicas')&.to_i&.positive? && es_preset == 'single_node_cluster'
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Admin::SystemCheck::Message.new(:elasticsearch_reset_chewy)
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elsif cluster_health['status'] == 'yellow'
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Admin::SystemCheck::Message.new(:elasticsearch_health_yellow)
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else
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Admin::SystemCheck::Message.new(:elasticsearch_preset, nil, 'https://docs.joinmastodon.org/admin/optional/elasticsearch/#scaling')
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end
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rescue Faraday::ConnectionFailed, Elasticsearch::Transport::Transport::Error
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Admin::SystemCheck::Message.new(:elasticsearch_running_check)
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end
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private
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def cluster_health
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@cluster_health ||= Chewy.client.cluster.health
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end
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def running_version
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@running_version ||= begin
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Chewy.client.info['version']['number']
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rescue Faraday::ConnectionFailed, Elasticsearch::Transport::Transport::Error
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nil
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end
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end
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def compatible_wire_version
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Chewy.client.info['version']['minimum_wire_compatibility_version']
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end
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def required_version
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'7.x'
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end
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def compatible_version?
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return false if running_version.nil?
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Gem::Version.new(running_version) >= Gem::Version.new(required_version) ||
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Gem::Version.new(compatible_wire_version) >= Gem::Version.new(required_version)
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rescue ArgumentError
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false
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end
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def mismatched_indexes
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@mismatched_indexes ||= INDEXES.filter_map do |klass|
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klass.index_name if Chewy.client.indices.get_mapping[klass.index_name]&.deep_symbolize_keys != klass.mappings_hash
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end
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end
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def indexes_match?
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mismatched_indexes.empty?
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end
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def es_preset
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ENV.fetch('ES_PRESET', 'single_node_cluster')
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end
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def preset_matches?
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case es_preset
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when 'single_node_cluster'
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cluster_health['number_of_nodes'] == 1
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else
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cluster_health['number_of_nodes'] > 1
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end
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end
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end
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