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|
module Clusters
module Applications
class Prometheus < ActiveRecord::Base
include PrometheusAdapter
VERSION = '6.7.3'.freeze
self.table_name = 'clusters_applications_prometheus'
include ::Clusters::Concerns::ApplicationCore
include ::Clusters::Concerns::ApplicationStatus
include ::Clusters::Concerns::ApplicationVersion
include ::Clusters::Concerns::ApplicationData
default_value_for :version, VERSION
state_machine :status do
after_transition any => [:installed] do |application|
application.cluster.projects.each do |project|
project.find_or_initialize_service('prometheus').update(active: true)
end
end
end
def ready_status
[:installed]
end
def ready?
ready_status.include?(status_name)
end
def chart
'stable/prometheus'
end
def service_name
'prometheus-prometheus-server'
end
def service_port
80
end
def install_command
Gitlab::Kubernetes::Helm::InstallCommand.new(
name,
version: VERSION,
chart: chart,
values: values
)
end
def prometheus_client
return unless kube_client
proxy_url = kube_client.proxy_url('service', service_name, service_port, Gitlab::Kubernetes::Helm::NAMESPACE)
# ensures headers containing auth data are appended to original k8s client options
options = kube_client.rest_client.options.merge(headers: kube_client.headers)
RestClient::Resource.new(proxy_url, options)
rescue Kubeclient::HttpError
# If users have mistakenly set parameters or removed the depended clusters,
# `proxy_url` could raise an exception because gitlab can not communicate with the cluster.
# Since `PrometheusAdapter#can_query?` is eargely loaded on environement pages in gitlab,
# we need to silence the exceptions
end
private
def kube_client
cluster&.kubeclient
end
end
end
end
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