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# frozen_string_literal: true
module Clusters
module Applications
class Knative < ApplicationRecord
VERSION = '0.5.0'.freeze
REPOSITORY = 'https://storage.googleapis.com/triggermesh-charts'.freeze
METRICS_CONFIG = 'https://storage.googleapis.com/triggermesh-charts/istio-metrics.yaml'.freeze
FETCH_IP_ADDRESS_DELAY = 30.seconds
self.table_name = 'clusters_applications_knative'
include ::Clusters::Concerns::ApplicationCore
include ::Clusters::Concerns::ApplicationStatus
include ::Clusters::Concerns::ApplicationVersion
include ::Clusters::Concerns::ApplicationData
include AfterCommitQueue
include ReactiveCaching
self.reactive_cache_key = ->(knative) { [knative.class.model_name.singular, knative.id] }
def set_initial_status
return unless not_installable?
return unless verify_cluster?
self.status = 'installable'
end
state_machine :status do
after_transition any => [:installed] do |application|
application.run_after_commit do
ClusterWaitForIngressIpAddressWorker.perform_in(
FETCH_IP_ADDRESS_DELAY, application.name, application.id)
end
end
end
default_value_for :version, VERSION
validates :hostname, presence: true, hostname: true
scope :for_cluster, -> (cluster) { where(cluster: cluster) }
after_save :clear_reactive_cache!
def chart
'knative/knative'
end
def values
{ "domain" => hostname }.to_yaml
end
# Handled in a new issue:
# https://gitlab.com/gitlab-org/gitlab-ce/issues/59369
def allowed_to_uninstall?
false
end
def install_command
Gitlab::Kubernetes::Helm::InstallCommand.new(
name: name,
version: VERSION,
rbac: cluster.platform_kubernetes_rbac?,
chart: chart,
files: files,
repository: REPOSITORY,
postinstall: install_knative_metrics
)
end
def schedule_status_update
return unless installed?
return if external_ip
return if external_hostname
ClusterWaitForIngressIpAddressWorker.perform_async(name, id)
end
def client
cluster.kubeclient.knative_client
end
def services
with_reactive_cache do |data|
data[:services]
end
end
def calculate_reactive_cache
{ services: read_services, pods: read_pods }
end
def ingress_service
cluster.kubeclient.get_service('istio-ingressgateway', 'istio-system')
end
def services_for(ns: namespace)
return [] unless services
return [] unless ns
services.select do |service|
service.dig('metadata', 'namespace') == ns
end
end
def service_pod_details(ns, service)
with_reactive_cache do |data|
data[:pods].select { |pod| filter_pods(pod, ns, service) }
end
end
private
def read_pods
cluster.kubeclient.core_client.get_pods.as_json
end
def filter_pods(pod, namespace, service)
pod["metadata"]["namespace"] == namespace && pod["metadata"]["labels"]["serving.knative.dev/service"] == service
end
def read_services
client.get_services.as_json
rescue Kubeclient::ResourceNotFoundError
[]
end
def install_knative_metrics
["kubectl apply -f #{METRICS_CONFIG}"] if cluster.application_prometheus_available?
end
def verify_cluster?
cluster&.application_helm_available? && cluster&.platform_kubernetes_rbac?
end
end
end
end
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