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class PrometheusService < MonitoringService
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include PrometheusAdapter
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# Access to prometheus is directly through the API
prop_accessor :api_url
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boolean_accessor :manual_configuration
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with_options presence : true , if : :manual_configuration? do
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validates :api_url , url : true
end
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before_save :synchronize_service_state
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after_save :clear_reactive_cache!
def initialize_properties
if properties . nil?
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self . properties = { }
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end
end
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def show_active_box?
false
end
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def editable?
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manual_configuration? || ! prometheus_installed?
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end
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def title
'Prometheus'
end
def description
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s_ ( 'PrometheusService|Time-series monitoring service' )
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end
def self . to_param
'prometheus'
end
def fields
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return [ ] unless editable?
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[
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{
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type : 'checkbox' ,
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name : 'manual_configuration' ,
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title : s_ ( 'PrometheusService|Active' ) ,
required : true
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} ,
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{
type : 'text' ,
name : 'api_url' ,
title : 'API URL' ,
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placeholder : s_ ( 'PrometheusService|Prometheus API Base URL, like http://prometheus.example.com/' ) ,
help : s_ ( 'PrometheusService|By default, Prometheus listens on ‘ http://localhost:9090’ . It’ s not recommended to change the default address and port as this might affect or conflict with other services running on the GitLab server.' ) ,
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required : true
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}
]
end
# Check we can connect to the Prometheus API
def test ( * args )
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Gitlab :: PrometheusClient . new ( prometheus_client ) . ping
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{ success : true , result : 'Checked API endpoint' }
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rescue Gitlab :: PrometheusClient :: Error = > err
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{ success : false , result : err }
end
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def prometheus_client
RestClient :: Resource . new ( api_url ) if api_url && manual_configuration? && active?
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end
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def prometheus_installed?
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return false if template?
return false unless project
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project . clusters . enabled . any? { | cluster | cluster . application_prometheus & . installed? }
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end
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private
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def synchronize_service_state
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self . active = prometheus_installed? || manual_configuration?
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true
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end
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end