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|
# frozen_string_literal: true
class PrometheusService < MonitoringService
include PrometheusAdapter
# Access to prometheus is directly through the API
prop_accessor :api_url
boolean_accessor :manual_configuration
# We need to allow the self-monitoring project to connect to the internal
# Prometheus instance.
# Since the internal Prometheus instance is usually a localhost URL, we need
# to allow localhost URLs when the following conditions are true:
# 1. project is the self-monitoring project.
# 2. api_url is the internal Prometheus URL.
with_options presence: true, if: :manual_configuration? do
validates :api_url, public_url: true, unless: proc { |object| object.allow_local_api_url? }
validates :api_url, url: true, if: proc { |object| object.allow_local_api_url? }
end
before_save :synchronize_service_state
after_save :clear_reactive_cache!
def initialize_properties
if properties.nil?
self.properties = {}
end
end
def show_active_box?
false
end
def editable?
manual_configuration? || !prometheus_available?
end
def title
'Prometheus'
end
def description
s_('PrometheusService|Time-series monitoring service')
end
def self.to_param
'prometheus'
end
def fields
return [] unless editable?
[
{
type: 'checkbox',
name: 'manual_configuration',
title: s_('PrometheusService|Active'),
required: true
},
{
type: 'text',
name: 'api_url',
title: 'API URL',
placeholder: s_('PrometheusService|Prometheus API Base URL, like http://prometheus.example.com/'),
required: true
}
]
end
# Check we can connect to the Prometheus API
def test(*args)
prometheus_client.ping
{ success: true, result: 'Checked API endpoint' }
rescue Gitlab::PrometheusClient::Error => err
{ success: false, result: err }
end
def prometheus_client
return unless should_return_client?
Gitlab::PrometheusClient.new(api_url)
end
def prometheus_available?
return false if template?
return false unless project
project.clusters.enabled.any? { |cluster| cluster.application_prometheus_available? }
end
def allow_local_api_url?
self_monitoring_project? && internal_prometheus_url?
end
private
def self_monitoring_project?
project && project.id == current_settings.instance_administration_project_id
end
def internal_prometheus_url?
api_url.present? && api_url == ::Gitlab::Prometheus::Internal.uri
end
def should_return_client?
api_url.present? && manual_configuration? && active? && valid?
end
def current_settings
Gitlab::CurrentSettings.current_application_settings
end
def synchronize_service_state
self.active = prometheus_available? || manual_configuration?
true
end
end
|
