Move kubeclient and namespace variables to the private interface

app/models/internal_id.rb

@@ -14,7 +14,7 @@ class InternalId < ActiveRecord::Base
   belongs_to :project
   belongs_to :namespace
 
-  enum usage: { issues: 0, merge_requests: 1, deployments: 2, milestones: 3, epics: 4, ci_pipelines: 5, prometheus_alerts: 6 }
+  enum usage: { issues: 0, merge_requests: 1, deployments: 2, milestones: 3, epics: 4, ci_pipelines: 5 }
 
   validates :usage, presence: true
 

lib/gitlab/kubernetes/helm/api.rb

@@ -2,8 +2,6 @@ module Gitlab
   module Kubernetes
     module Helm
       class Api
-        attr_reader :kubeclient, :namespace
-
         def initialize(kubeclient)
           @kubeclient = kubeclient
           @namespace = Gitlab::Kubernetes::Namespace.new(Gitlab::Kubernetes::Helm::NAMESPACE, kubeclient)
@@ -36,6 +34,8 @@ module Gitlab
 
         private
 
+        attr_reader :kubeclient, :namespace
+
         def create_config_map(command)
           command.config_map_resource.tap do |config_map_resource|
             kubeclient.create_config_map(config_map_resource)