41054-Disallow creation of new Kubernetes integrations

app/assets/stylesheets/pages/settings.scss

@@ -268,3 +268,7 @@
     margin: 0 0 5px 17px;
   }
 }
+
+.deprecated-service {
+  cursor: default;
+}

app/helpers/services_helper.rb

@@ -27,5 +27,16 @@ module ServicesHelper
     "#{event}_events"
   end
 
+  def service_save_button(service)
+    button_tag(class: 'btn btn-save', type: 'submit', disabled: service.deprecated?) do
+      icon('spinner spin', class: 'hidden js-btn-spinner') +
+        content_tag(:span, 'Save changes', class: 'js-btn-label')
+    end
+  end
+
+  def disable_fields_service?(service)
+    !current_controller?("admin/services") && service.deprecated?
+  end
+
   extend self
 end

app/models/project_services/kubernetes_service.rb

@@ -31,6 +31,7 @@ class KubernetesService < DeploymentService
 
   before_validation :enforce_namespace_to_lower_case
 
+  validate :deprecation_validation, unless: :template?
   validates :namespace,
     allow_blank: true,
     length: 1..63,
@@ -145,6 +146,17 @@ class KubernetesService < DeploymentService
     @kubeclient ||= build_kubeclient!
   end
 
+  def deprecated?
+    !active
+  end
+
+  def deprecation_message
+    content = <<-MESSAGE.strip_heredoc
+    Kubernetes service integration has been deprecated. #{deprecated_message_content} your clusters using the new <a href=\'#{Gitlab::Routing.url_helpers.project_clusters_path(project)}'/>Clusters</a> page
+      MESSAGE
+    content.html_safe
+  end
+
   TEMPLATE_PLACEHOLDER = 'Kubernetes namespace'.freeze
 
   private
@@ -226,4 +238,20 @@ class KubernetesService < DeploymentService
   def enforce_namespace_to_lower_case
     self.namespace = self.namespace&.downcase
   end
+
+  def deprecation_validation
+    return if active_changed?(from: true, to: false)
+
+    if deprecated?
+      errors[:base] << deprecation_message
+    end
+  end
+
+  def deprecated_message_content
+    if active?
+      "Your cluster information on this page is still editable, but you are advised to disable and reconfigure"
+    else
+      "Fields on this page are now uneditable, you can configure"
+    end
+  end
 end

app/models/service.rb

@@ -263,6 +263,14 @@ class Service < ActiveRecord::Base
     service
   end
 
+  def deprecated?
+    false
+  end
+
+  def deprecation_message
+    nil
+  end
+
   private
 
   def cache_project_has_external_issue_tracker

app/views/projects/services/_deprecated_message.html.haml

@@ -0,0 +1,3 @@
+.flash-container.flash-container-page
+  .flash-alert.deprecated-service
+    %span= @service.deprecation_message

app/views/projects/services/_form.html.haml

@@ -13,10 +13,7 @@
       = render 'shared/service_settings', form: form, subject: @service
       - if @service.editable?
         .footer-block.row-content-block
-          %button.btn.btn-save{ type: 'submit' }
-            = icon('spinner spin', class: 'hidden js-btn-spinner')
-            %span.js-btn-label
-              Save changes
+          = service_save_button(@service)
            
           - if @service.valid? && @service.activated?
             - unless @service.can_test?

app/views/projects/services/edit.html.haml

@@ -2,4 +2,6 @@
 - page_title @service.title, "Services"
 - add_to_breadcrumbs("Settings", edit_project_path(@project))
 
+= render 'deprecated_message' if @service.deprecation_message
+
 = render 'form'

app/views/shared/_field.html.haml

@@ -7,6 +7,7 @@
 - choices = field[:choices]
 - default_choice = field[:default_choice]
 - help = field[:help]
+- disabled = disable_fields_service?(@service)
 
 .form-group
   - if type == "password" && value.present?
@@ -15,14 +16,14 @@
     = form.label name, title, class: "control-label"
   .col-sm-10
     - if type == 'text'
-      = form.text_field name, class: "form-control", placeholder: placeholder, required: required
+      = form.text_field name, class: "form-control", placeholder: placeholder, required: required, disabled: disabled
     - elsif type == 'textarea'
-      = form.text_area name, rows: 5, class: "form-control", placeholder: placeholder, required: required
+      = form.text_area name, rows: 5, class: "form-control", placeholder: placeholder, required: required, disabled: disabled
     - elsif type == 'checkbox'
-      = form.check_box name
+      = form.check_box name, disabled: disabled
     - elsif type == 'select'
-      = form.select name, options_for_select(choices, value ? value : default_choice), {}, { class: "form-control" }
+      = form.select name, options_for_select(choices, value ? value : default_choice), {}, { class: "form-control", disabled: disabled}
     - elsif type == 'password'
-      = form.password_field name, autocomplete: "new-password", class: "form-control", required: value.blank? && :required
+      = form.password_field name, autocomplete: "new-password", class: "form-control", required: value.blank? && required, disabled: disabled
     - if help
       %span.help-block= help

app/views/shared/_service_settings.html.haml

@@ -11,7 +11,7 @@
     .form-group
       = form.label :active, "Active", class: "control-label"
       .col-sm-10
-        = form.check_box :active
+        = form.check_box :active, disabled: disable_fields_service?(@service)
 
   - if @service.supported_events.present?
     .form-group

changelogs/unreleased/41054-disable-creation-of-new-kubernetes-integrations.yml

@@ -0,0 +1,6 @@
+---
+title: Disable creation of new Kubernetes Integrations unless they're active or created
+  from template
+merge_request: 41054
+author:
+type: added

spec/controllers/projects/services_controller_spec.rb

@@ -114,5 +114,41 @@ describe Projects::ServicesController do
         expect(flash[:notice]).to eq 'HipChat settings saved, but not activated.'
       end
     end
+
+    context 'with a deprecated service' do
+      let(:service) { create(:kubernetes_service, project: project) }
+
+      before do
+        put :update,
+          namespace_id: project.namespace, project_id: project, id: service.to_param, service: { namespace: 'updated_namespace' }
+      end
+
+      it 'should not update the service' do
+        service.reload
+        expect(service.namespace).not_to eq('updated_namespace')
+      end
+    end
+  end
+
+  describe "GET #edit" do
+    before do
+      get :edit, namespace_id: project.namespace, project_id: project, id: service_id
+    end
+
+    context 'with approved services' do
+      let(:service_id) { 'jira' }
+
+      it 'should render edit page' do
+        expect(response).to be_success
+      end
+    end
+
+    context 'with a deprecated service' do
+      let(:service_id) { 'kubernetes' }
+
+      it 'should render edit page' do
+        expect(response).to be_success
+      end
+    end
   end
 end

spec/factories/services.rb

@@ -18,6 +18,7 @@ FactoryBot.define do
 
   factory :kubernetes_service do
     project
+    type 'KubernetesService'
     active true
     properties({
       api_url: 'https://kubernetes.example.com',

spec/features/projects/clusters/interchangeability_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 feature 'Interchangeability between KubernetesService and Platform::Kubernetes' do
-  EXCEPT_METHODS = %i[test title description help fields initialize_properties namespace namespace= api_url api_url=].freeze
+  EXCEPT_METHODS = %i[test title description help fields initialize_properties namespace namespace= api_url api_url= deprecated? deprecation_message].freeze
   EXCEPT_METHODS_GREP_V = %w[_touched? _changed? _was].freeze
 
   it 'Clusters::Platform::Kubernetes covers core interfaces in KubernetesService' do

spec/models/project_services/kubernetes_service_spec.rb

@@ -52,12 +52,75 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
 
     context 'when service is inactive' do
       before do
+        subject.project = project
         subject.active = false
       end
 
       it { is_expected.not_to validate_presence_of(:api_url) }
       it { is_expected.not_to validate_presence_of(:token) }
     end
+
+    context 'with a deprecated service' do
+      let(:kubernetes_service) { create(:kubernetes_service) }
+
+      before do
+        kubernetes_service.update_attribute(:active, false)
+        kubernetes_service.properties[:namespace] = "foo"
+      end
+
+      it 'should not update attributes' do
+        expect(kubernetes_service.save).to be_falsy
+      end
+
+      it 'should include an error with a deprecation message' do
+        kubernetes_service.valid?
+        expect(kubernetes_service.errors[:base].first).to match(/Kubernetes service integration has been deprecated/)
+      end
+    end
+
+    context 'with a non-deprecated service' do
+      let(:kubernetes_service) { create(:kubernetes_service) }
+
+      it 'should update attributes' do
+        kubernetes_service.properties[:namespace] = 'foo'
+        expect(kubernetes_service.save).to be_truthy
+      end
+    end
+
+    context 'with an active and deprecated service' do
+      let(:kubernetes_service) { create(:kubernetes_service) }
+
+      before do
+        kubernetes_service.active = false
+        kubernetes_service.properties[:namespace] = 'foo'
+        kubernetes_service.save
+      end
+
+      it 'should deactive the service' do
+        expect(kubernetes_service.active?).to be_falsy
+      end
+
+      it 'should not include a deprecation message as error' do
+        expect(kubernetes_service.errors.messages.count).to eq(0)
+      end
+
+      it 'should update attributes' do
+        expect(kubernetes_service.properties[:namespace]).to eq("foo")
+      end
+    end
+
+    context 'with a template service' do
+      let(:kubernetes_service) { create(:kubernetes_service, template: true, active: false) }
+
+      before do
+        kubernetes_service.properties[:namespace] = 'foo'
+      end
+
+      it 'should update attributes' do
+        expect(kubernetes_service.save).to be_truthy
+        expect(kubernetes_service.properties[:namespace]).to eq('foo')
+      end
+    end
   end
 
   describe '#initialize_properties' do
@@ -318,4 +381,42 @@ describe KubernetesService, :use_clean_rails_memory_store_caching do
       it { is_expected.to eq(pods: []) }
     end
   end
+
+  describe "#deprecated?" do
+    let(:kubernetes_service) { create(:kubernetes_service) }
+
+    context 'with an active kubernetes service' do
+      it 'should return false' do
+        expect(kubernetes_service.deprecated?).to be_falsy
+      end
+    end
+
+    context 'with a inactive kubernetes service' do
+      it 'should return true' do
+        kubernetes_service.update_attribute(:active, false)
+        expect(kubernetes_service.deprecated?).to be_truthy
+      end
+    end
+  end
+
+  describe "#deprecation_message" do
+    let(:kubernetes_service) { create(:kubernetes_service) }
+
+    it 'should indicate the service is deprecated' do
+      expect(kubernetes_service.deprecation_message).to match(/Kubernetes service integration has been deprecated/)
+    end
+
+    context 'if the services is active' do
+      it 'should return a message' do
+        expect(kubernetes_service.deprecation_message).to match(/Your cluster information on this page is still editable/)
+      end
+    end
+
+    context 'if the service is not active' do
+      it 'should return a message' do
+        kubernetes_service.update_attribute(:active, false)
+        expect(kubernetes_service.deprecation_message).to match(/Fields on this page are now uneditable/)
+      end
+    end
+  end
 end

spec/models/service_spec.rb

@@ -254,4 +254,22 @@ describe Service do
       end
     end
   end
+
+  describe "#deprecated?" do
+    let(:project) { create(:project, :repository) }
+
+    it 'should return false by default' do
+      service = create(:service, project: project)
+      expect(service.deprecated?).to be_falsy
+    end
+  end
+
+  describe "#deprecation_message" do
+    let(:project) { create(:project, :repository) }
+
+    it 'should be empty by default' do
+      service = create(:service, project: project)
+      expect(service.deprecation_message).to be_nil
+    end
+  end
 end

spec/requests/api/services_spec.rb

@@ -53,6 +53,10 @@ describe API::Services do
     describe "DELETE /projects/:id/services/#{service.dasherize}" do
       include_context service
 
+      before do
+        initialize_service(service)
+      end
+
       it "deletes #{service}" do
         delete api("/projects/#{project.id}/services/#{dashed_service}", user)
 
@@ -67,9 +71,7 @@ describe API::Services do
 
       # inject some properties into the service
       before do
-        service_object = project.find_or_initialize_service(service)
-        service_object.properties = service_attrs
-        service_object.save
+        initialize_service(service)
       end
 
       it 'returns authentication error when unauthenticated' do

spec/requests/api/v3/services_spec.rb

@@ -10,6 +10,10 @@ describe API::V3::Services do
     describe "DELETE /projects/:id/services/#{service.dasherize}" do
       include_context service
 
+      before do
+        initialize_service(service)
+      end
+
       it "deletes #{service}" do
         delete v3_api("/projects/#{project.id}/services/#{dashed_service}", user)
 

spec/support/services_shared_context.rb

@@ -29,5 +29,13 @@ Service.available_services_names.each do |service|
         end
       end
     end
+
+    def initialize_service(service)
+      service_item = project.find_or_initialize_service(service)
+      service_item.properties = service_attrs
+      service_item.active = true if service == "kubernetes"
+      service_item.save
+      service_item
+    end
   end
 end