161 lines
4.7 KiB
Ruby
161 lines
4.7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Clusters
|
|
module Applications
|
|
class Prometheus < ApplicationRecord
|
|
include PrometheusAdapter
|
|
|
|
VERSION = '9.5.2'
|
|
|
|
self.table_name = 'clusters_applications_prometheus'
|
|
|
|
include ::Clusters::Concerns::ApplicationCore
|
|
include ::Clusters::Concerns::ApplicationStatus
|
|
include ::Clusters::Concerns::ApplicationVersion
|
|
include ::Clusters::Concerns::ApplicationData
|
|
include AfterCommitQueue
|
|
|
|
default_value_for :version, VERSION
|
|
|
|
attr_encrypted :alert_manager_token,
|
|
mode: :per_attribute_iv,
|
|
key: Settings.attr_encrypted_db_key_base_truncated,
|
|
algorithm: 'aes-256-gcm'
|
|
|
|
after_destroy do
|
|
run_after_commit do
|
|
disable_prometheus_integration
|
|
end
|
|
end
|
|
|
|
state_machine :status do
|
|
after_transition any => [:installed] do |application|
|
|
application.run_after_commit do
|
|
Clusters::Applications::ActivateServiceWorker
|
|
.perform_async(application.cluster_id, ::PrometheusService.to_param) # rubocop:disable CodeReuse/ServiceClass
|
|
end
|
|
end
|
|
|
|
after_transition any => :updating do |application|
|
|
application.update(last_update_started_at: Time.now)
|
|
end
|
|
end
|
|
|
|
def updated_since?(timestamp)
|
|
last_update_started_at &&
|
|
last_update_started_at > timestamp &&
|
|
!update_errored?
|
|
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: name,
|
|
version: VERSION,
|
|
rbac: cluster.platform_kubernetes_rbac?,
|
|
chart: chart,
|
|
files: files,
|
|
postinstall: install_knative_metrics
|
|
)
|
|
end
|
|
|
|
def patch_command(values)
|
|
::Gitlab::Kubernetes::Helm::PatchCommand.new(
|
|
name: name,
|
|
version: version,
|
|
rbac: cluster.platform_kubernetes_rbac?,
|
|
chart: chart,
|
|
files: files_with_replaced_values(values)
|
|
)
|
|
end
|
|
|
|
def uninstall_command
|
|
Gitlab::Kubernetes::Helm::DeleteCommand.new(
|
|
name: name,
|
|
rbac: cluster.platform_kubernetes_rbac?,
|
|
files: files,
|
|
predelete: delete_knative_istio_metrics
|
|
)
|
|
end
|
|
|
|
# Returns a copy of files where the values of 'values.yaml'
|
|
# are replaced by the argument.
|
|
#
|
|
# See #values for the data format required
|
|
def files_with_replaced_values(replaced_values)
|
|
files.merge('values.yaml': replaced_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)
|
|
Gitlab::PrometheusClient.new(proxy_url, options)
|
|
rescue Kubeclient::HttpError, Errno::ECONNRESET, Errno::ECONNREFUSED, Errno::ENETUNREACH
|
|
# 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
|
|
|
|
def configured?
|
|
kube_client.present? && available?
|
|
rescue Gitlab::UrlBlocker::BlockedUrlError
|
|
false
|
|
end
|
|
|
|
def generate_alert_manager_token!
|
|
unless alert_manager_token.present?
|
|
update!(alert_manager_token: generate_token)
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def generate_token
|
|
SecureRandom.hex
|
|
end
|
|
|
|
def disable_prometheus_integration
|
|
::Clusters::Applications::DeactivateServiceWorker
|
|
.perform_async(cluster_id, ::PrometheusService.to_param) # rubocop:disable CodeReuse/ServiceClass
|
|
end
|
|
|
|
def kube_client
|
|
cluster&.kubeclient&.core_client
|
|
end
|
|
|
|
def install_knative_metrics
|
|
return [] unless cluster.application_knative_available?
|
|
|
|
[Gitlab::Kubernetes::KubectlCmd.apply_file(Clusters::Applications::Knative::METRICS_CONFIG)]
|
|
end
|
|
|
|
def delete_knative_istio_metrics
|
|
return [] unless cluster.application_knative_available?
|
|
|
|
[
|
|
Gitlab::Kubernetes::KubectlCmd.delete(
|
|
"-f", Clusters::Applications::Knative::METRICS_CONFIG,
|
|
"--ignore-not-found"
|
|
)
|
|
]
|
|
end
|
|
end
|
|
end
|
|
end
|