100 lines
3 KiB
Ruby
100 lines
3 KiB
Ruby
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# frozen_string_literal: true
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# Attribute mapping for alerts via prometheus alerting integration.
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module Gitlab
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module AlertManagement
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module Payload
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class Prometheus < Base
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attribute :alert_markdown, paths: %w(annotations gitlab_incident_markdown)
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attribute :annotations, paths: 'annotations'
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attribute :description, paths: %w(annotations description)
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attribute :ends_at, paths: 'endsAt', type: :time
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attribute :environment_name, paths: %w(labels gitlab_environment_name)
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attribute :generator_url, paths: %w(generatorURL)
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attribute :gitlab_y_label,
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paths: [%w(annotations gitlab_y_label),
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%w(annotations title),
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%w(annotations summary),
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%w(labels alertname)]
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attribute :runbook, paths: %w(annotations runbook)
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attribute :starts_at,
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paths: 'startsAt',
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type: :time,
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fallback: -> { Time.current.utc }
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attribute :status, paths: 'status'
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attribute :title,
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paths: [%w(annotations title),
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%w(annotations summary),
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%w(labels alertname)]
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attribute :starts_at_raw,
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paths: [%w(startsAt)]
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private :starts_at_raw
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METRIC_TIME_WINDOW = 30.minutes
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def monitoring_tool
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Gitlab::AlertManagement::Payload::MONITORING_TOOLS[:prometheus]
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end
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# Parses `g0.expr` from `generatorURL`.
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#
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# Example: http://localhost:9090/graph?g0.expr=vector%281%29&g0.tab=1
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def full_query
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return unless generator_url
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uri = URI(generator_url)
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Rack::Utils.parse_query(uri.query).fetch('g0.expr')
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rescue URI::InvalidURIError, KeyError
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end
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def metrics_dashboard_url
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return unless environment && full_query && title
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metrics_dashboard_project_environment_url(
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project,
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environment,
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embed_json: dashboard_json,
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embedded: true,
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**alert_embed_window_params
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)
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end
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def has_required_attributes?
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project && title && starts_at_raw
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end
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private
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def plain_gitlab_fingerprint
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[starts_at_raw, title, full_query].join('/')
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end
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# Formatted for parsing by JS
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def alert_embed_window_params
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{
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start: (starts_at - METRIC_TIME_WINDOW).utc.strftime('%FT%TZ'),
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end: (starts_at + METRIC_TIME_WINDOW).utc.strftime('%FT%TZ')
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}
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end
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def dashboard_json
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{
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panel_groups: [{
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panels: [{
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type: 'area-chart',
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title: title,
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y_label: gitlab_y_label,
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metrics: [{
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query_range: full_query
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}]
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}]
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}]
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}.to_json
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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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