debian-mirror-gitlab/app/finders/projects/serverless/functions_finder.rb
2020-05-24 23:13:21 +05:30

153 lines
4.2 KiB
Ruby

# frozen_string_literal: true
module Projects
module Serverless
class FunctionsFinder
include Gitlab::Utils::StrongMemoize
include ReactiveCaching
attr_reader :project
self.reactive_cache_key = ->(finder) { finder.cache_key }
self.reactive_cache_work_type = :external_dependency
self.reactive_cache_worker_finder = ->(_id, *args) { from_cache(*args) }
MAX_CLUSTERS = 10
def initialize(project)
@project = project
end
def execute
knative_services.flatten.compact
end
def knative_installed
return knative_installed_from_cluster?(*cache_key) if available_environments.empty?
states = services_finders.map do |finder|
finder.knative_detected.tap do |state|
return state if state == ::Clusters::KnativeServicesFinder::KNATIVE_STATES['checking'] # rubocop:disable Cop/AvoidReturnFromBlocks
end
end
states.any? { |state| state == ::Clusters::KnativeServicesFinder::KNATIVE_STATES['installed'] }
end
def service(environment_scope, name)
knative_service(environment_scope, name)&.first
end
def invocation_metrics(environment_scope, name)
environment = finders_for_scope(environment_scope).first&.environment
if environment.present? && environment.prometheus_adapter&.can_query?
func = ::Serverless::Function.new(project, name, environment.deployment_namespace)
environment.prometheus_adapter.query(:knative_invocation, func)
end
end
def has_prometheus?(environment_scope)
finders_for_scope(environment_scope).any? do |finder|
finder.cluster.application_prometheus_available?
end
end
def self.from_cache(project_id)
project = Project.find(project_id)
new(project)
end
def cache_key(*args)
[project.id]
end
def calculate_reactive_cache(*)
# rubocop: disable CodeReuse/ActiveRecord
project.all_clusters.enabled.take(MAX_CLUSTERS).any? do |cluster|
cluster.kubeclient.knative_client.discover
rescue Kubeclient::ResourceNotFoundError
next
end
end
private
def knative_installed_from_cluster?(*cache_key)
cached_data = with_reactive_cache_memoized(*cache_key) { |data| data }
return ::Clusters::KnativeServicesFinder::KNATIVE_STATES['checking'] if cached_data.nil?
cached_data ? true : false
end
def with_reactive_cache_memoized(*cache_key)
strong_memoize(:reactive_cache) do
with_reactive_cache(*cache_key) { |data| data }
end
end
def knative_service(environment_scope, name)
finders_for_scope(environment_scope).map do |finder|
services = finder
.services
.select { |svc| svc["metadata"]["name"] == name }
attributes = add_metadata(finder, services).first
next unless attributes
Gitlab::Serverless::Service.new(attributes)
end
end
def knative_services
services_finders.map do |finder|
attributes = add_metadata(finder, finder.services)
attributes&.map do |attributes|
Gitlab::Serverless::Service.new(attributes)
end
end
end
def add_metadata(finder, services)
return if services.nil?
add_pod_count = services.one?
services.each do |s|
s["environment_scope"] = finder.cluster.environment_scope
s["environment"] = finder.environment
s["cluster"] = finder.cluster
if add_pod_count
s["podcount"] = finder
.service_pod_details(s["metadata"]["name"])
.length
end
end
end
def services_finders
strong_memoize(:services_finders) do
available_environments.map(&:knative_services_finder).compact
end
end
def available_environments
@project.environments.available.preload_cluster
end
def finders_for_scope(environment_scope)
services_finders.select do |finder|
environment_scope == finder.cluster.environment_scope
end
end
def id
nil
end
end
end
end