specs for models. Improved details.

16 files changed, 838 insertions, 342 deletions

diff --git a/app/models/clusters/cluster.rb b/app/models/clusters/cluster.rb
index f1eedad8795..4260fadb46d 100644
--- a/app/models/clusters/cluster.rb
+++ b/app/models/clusters/cluster.rb
@@ -6,15 +6,6 @@ module Clusters
 
     belongs_to :user
 
-    enum platform_type: {
-      kubernetes: 1
-    }
-
-    enum provider_type: {
-      user: 0,
-      gcp: 1
-    }
-
     has_many :cluster_projects, class_name: 'Clusters::Project'
     has_many :projects, through: :cluster_projects, class_name: '::Project'
 
@@ -32,6 +23,18 @@ module Clusters
     delegate :status_name, to: :provider, allow_nil: true
     delegate :on_creation?, to: :provider, allow_nil: true
 
+    enum platform_type: {
+      kubernetes: 1
+    }
+
+    enum provider_type: {
+      user: 0,
+      gcp: 1
+    }
+
+    scope :enabled, -> { where(enabled: true) }
+    scope :disabled, -> { where(enabled: false) }
+
     def provider
       return provider_gcp if gcp?
     end
@@ -40,15 +43,12 @@ module Clusters
       return platform_kubernetes if kubernetes?
     end
 
-    def project
-      first_project
-    end
-
     def first_project
       return @first_project if defined?(@first_project)
 
       @first_project = projects.first
     end
+    alias_method :project, :first_project
 
     private
 
diff --git a/app/models/clusters/platforms/kubernetes.rb b/app/models/clusters/platforms/kubernetes.rb
index d9f8927f7cc..b20b00ff51b 100644
--- a/app/models/clusters/platforms/kubernetes.rb
+++ b/app/models/clusters/platforms/kubernetes.rb
@@ -1,13 +1,11 @@
 module Clusters
   module Platforms
     class Kubernetes < ActiveRecord::Base
+      include Gitlab::CurrentSettings
       include Gitlab::Kubernetes
       include ReactiveCaching
 
       self.table_name = 'cluster_platforms_kubernetes'
-
-      TEMPLATE_PLACEHOLDER = 'Kubernetes namespace'.freeze
-
       self.reactive_cache_key = ->(kubernetes) { [kubernetes.class.model_name.singular, kubernetes.cluster_id] }
 
       belongs_to :cluster, inverse_of: :platform_kubernetes, class_name: 'Clusters::Cluster'
@@ -22,6 +20,8 @@ module Clusters
         key: Gitlab::Application.secrets.db_key_base,
         algorithm: 'aes-256-cbc'
 
+      before_validation :enforce_namespace_to_lower_case
+
       validates :namespace,
         allow_blank: true,
         length: 1..63,
@@ -34,8 +34,19 @@ module Clusters
       validates :token, presence: true, on: :update
 
       after_save :clear_reactive_cache!
-      
-      before_validation :enforce_namespace_to_lower_case
+
+      alias_attribute :ca_pem, :ca_cert
+
+      delegate :project, to: :cluster, allow_nil: true
+      delegate :enabled?, to: :cluster, allow_nil: true
+
+      alias_method :active?, :enabled?
+
+      class << self
+        def namespace_for_project(project)
+          "#{project.path}-#{project.id}"
+        end
+      end
 
       def actual_namespace
         if namespace.present?
@@ -45,6 +56,10 @@ module Clusters
         end
       end
 
+      def default_namespace
+        self.class.namespace_for_project(project) if project
+      end
+
       def predefined_variables
         config = YAML.dump(kubeconfig)
 
@@ -55,9 +70,9 @@ module Clusters
           { key: 'KUBECONFIG', value: config, public: false, file: true }
         ]
 
-        if ca_cert.present?
-          variables << { key: 'KUBE_CA_PEM', value: ca_cert, public: true }
-          variables << { key: 'KUBE_CA_PEM_FILE', value: ca_cert, public: true, file: true }
+        if ca_pem.present?
+          variables << { key: 'KUBE_CA_PEM', value: ca_pem, public: true }
+          variables << { key: 'KUBE_CA_PEM_FILE', value: ca_pem, public: true, file: true }
         end
 
         variables
@@ -78,7 +93,7 @@ module Clusters
       # Caches resources in the namespace so other calls don't need to block on
       # network access
       def calculate_reactive_cache
-        return unless active? && cluster.project && !cluster.project.pending_delete?
+        return unless active? && project && !project.pending_delete?
 
         # We may want to cache extra things in the future
         { pods: read_pods }
@@ -89,16 +104,7 @@ module Clusters
           url: api_url,
           namespace: actual_namespace,
           token: token,
-          ca_pem: ca_cert)
-      end
-
-      def namespace_placeholder
-        default_namespace || TEMPLATE_PLACEHOLDER
-      end
-
-      def default_namespace(project = nil)
-        project ||= cluster&.project
-        "#{project.path}-#{project.id}" if project
+          ca_pem: ca_pem)
       end
 
       def read_secrets
@@ -123,9 +129,9 @@ module Clusters
       def kubeclient_ssl_options
         opts = { verify_ssl: OpenSSL::SSL::VERIFY_PEER }
 
-        if ca_cert.present?
+        if ca_pem.present?
           opts[:cert_store] = OpenSSL::X509::Store.new
-          opts[:cert_store].add_cert(OpenSSL::X509::Certificate.new(ca_cert))
+          opts[:cert_store].add_cert(OpenSSL::X509::Certificate.new(ca_pem))
         end
 
         opts
@@ -166,7 +172,7 @@ module Clusters
       def terminal_auth
         {
           token: token,
-          ca_pem: ca_cert,
+          ca_pem: ca_pem,
           max_session_time: current_application_settings.terminal_max_session_time
         }
       end
diff --git a/app/models/clusters/project.rb b/app/models/clusters/project.rb
index 69088100420..eeb734b20b8 100644
--- a/app/models/clusters/project.rb
+++ b/app/models/clusters/project.rb
@@ -2,7 +2,7 @@ module Clusters
   class Project < ActiveRecord::Base
     self.table_name = 'cluster_projects'
 
-    belongs_to :cluster, inverse_of: :projects, class_name: 'Clusters::Cluster'
-    belongs_to :project, inverse_of: :project, class_name: 'Project'
+    belongs_to :cluster, class_name: 'Clusters::Cluster'
+    belongs_to :project, class_name: '::Project'
   end
 end
diff --git a/app/models/clusters/providers/gcp.rb b/app/models/clusters/providers/gcp.rb
index e4f109d2794..7700ba86f1a 100644
--- a/app/models/clusters/providers/gcp.rb
+++ b/app/models/clusters/providers/gcp.rb
@@ -55,7 +55,8 @@ module Clusters
 
         before_transition any => [:creating] do |provider, transition|
           operation_id = transition.args.first
-          provider.operation_id = operation_id if operation_id
+          raise 'operation_id is required' unless operation_id
+          provider.operation_id = operation_id
         end
 
         before_transition any => [:errored] do |provider, transition|
diff --git a/app/validators/cluster_name_validator.rb b/app/validators/cluster_name_validator.rb
index 6c9850af30f..13ec342f399 100644
--- a/app/validators/cluster_name_validator.rb
+++ b/app/validators/cluster_name_validator.rb
@@ -8,7 +8,7 @@ class ClusterNameValidator < ActiveModel::EachValidator
         record.errors.add(attribute, " has to be present")
       end
     elsif record.gcp?
-      if record.persisted? && record.name != value
+      if record.persisted? && record.name_changed?
         record.errors.add(attribute, " can not be changed because it's synchronized with provider")
       end
 
diff --git a/app/views/projects/clusters/_form.html.haml b/app/views/projects/clusters/_form.html.haml
index b3020513abf..6b9f63b7515 100644
--- a/app/views/projects/clusters/_form.html.haml
+++ b/app/views/projects/clusters/_form.html.haml
@@ -35,7 +35,7 @@
         = field.fields_for :platform_kubernetes, @cluster.platform_kubernetes do |platform_kubernetes_field|
           .form-group
           = platform_kubernetes_field.label :namespace, s_('ClusterIntegration|Project namespace (optional, unique)')
-          = platform_kubernetes_field.text_field :namespace, class: 'form-control', placeholder: @cluster.platform_kubernetes.default_namespace(@project)
+          = platform_kubernetes_field.text_field :namespace, class: 'form-control', placeholder: Clusters::Platforms::Kubernetes.namespace_for_project(@project)
 
         .form-group
           = field.submit s_('ClusterIntegration|Create cluster'), class: 'btn btn-save'
diff --git a/spec/factories/clusters/cluster.rb b/spec/factories/clusters/cluster.rb
new file mode 100644
index 00000000000..8ba1eda8cc9
--- /dev/null
+++ b/spec/factories/clusters/cluster.rb
@@ -0,0 +1,39 @@
+FactoryGirl.define do
+  factory :cluster, class: Clusters::Cluster do
+    user
+    name 'test-cluster'
+    provider_type :user
+    platform_type :kubernetes
+
+    trait :project do
+      after(:create) do |cluster, evaluator|
+        cluster.projects << create(:project)
+      end
+    end
+
+    trait :provided_by_user do
+      provider_type :user
+      platform_type :kubernetes
+      platform_kubernetes
+    end
+
+    trait :provided_by_gcp do
+      provider_type :gcp
+      platform_type :kubernetes
+      platform_kubernetes
+
+      provider_gcp do
+        create(:provider_gcp, :created)
+      end
+    end
+
+    trait :providing_by_gcp do
+      provider_type :gcp
+      platform_type :kubernetes
+
+      provider_gcp do
+        create(:provider_gcp, :creating)
+      end
+    end
+  end
+end
diff --git a/spec/factories/clusters/platforms/gcp.rb b/spec/factories/clusters/platforms/gcp.rb
new file mode 100644
index 00000000000..c135bbb20a4
--- /dev/null
+++ b/spec/factories/clusters/platforms/gcp.rb
@@ -0,0 +1,28 @@
+FactoryGirl.define do
+  factory :provider_gcp, class: Clusters::Providers::Gcp do
+    cluster
+    gcp_project_id 'test-gcp-project'
+
+    trait :creating do
+      access_token 'access_token_123'
+
+      after(:build) do |gcp, evaluator|
+        gcp.make_creating('operation-123')
+      end
+    end
+
+    trait :created do
+      endpoint '111.111.111.111'
+
+      after(:build) do |gcp, evaluator|
+        gcp.make_created
+      end
+    end
+
+    trait :errored do
+      after(:build) do |gcp, evaluator|
+        gcp.make_errored('Something wrong')
+      end
+    end
+  end
+end
diff --git a/spec/factories/clusters/providers/kubernetes.rb b/spec/factories/clusters/providers/kubernetes.rb
new file mode 100644
index 00000000000..b4d413d32c1
--- /dev/null
+++ b/spec/factories/clusters/providers/kubernetes.rb
@@ -0,0 +1,18 @@
+FactoryGirl.define do
+  factory :platform_kubernetes, class: Clusters::Platforms::Kubernetes do
+    cluster
+    api_url 'https://kubernetes.example.com'
+    ca_cert nil
+    token 'a' * 40
+    username 'xxxxxx'
+    password 'xxxxxx'
+    namespace nil
+
+    trait :ca_cert do
+      after(:create) do |platform_kubernetes, evaluator|
+        pem_file = File.expand_path(Rails.root.join('spec/fixtures/clusters/sample_cert.pem'))
+        platform_kubernetes.ca_cert = File.read(pem_file)
+      end
+    end
+  end
+end
diff --git a/spec/factories/gcp/cluster.rb b/spec/factories/gcp/cluster.rb
deleted file mode 100644
index 5c062737ffc..00000000000
--- a/spec/factories/gcp/cluster.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# FactoryGirl.define do
-#   factory :gcp_cluster, class: Gcp::Cluster do
-#     project
-#     user
-#     enabled true
-#     gcp_project_id 'gcp-project-12345'
-#     gcp_cluster_name 'test-cluster'
-#     gcp_cluster_zone 'us-central1-a'
-#     gcp_cluster_size 1
-#     gcp_machine_type 'n1-standard-4'
-
-#     trait :with_kubernetes_service do
-#       after(:create) do |cluster, evaluator|
-#         create(:kubernetes_service, project: cluster.project).tap do |service|
-#           cluster.update(service: service)
-#         end
-#       end
-#     end
-
-#     trait :custom_project_namespace do
-#       project_namespace 'sample-app'
-#     end
-
-#     trait :created_on_gke do
-#       status_event :make_created
-#       endpoint '111.111.111.111'
-#       ca_cert 'xxxxxx'
-#       kubernetes_token 'xxxxxx'
-#       username 'xxxxxx'
-#       password 'xxxxxx'
-#     end
-
-#     trait :errored do
-#       status_event :make_errored
-#       status_reason 'general error'
-#     end
-#   end
-# end
diff --git a/spec/fixtures/clusters/sample_cert.pem b/spec/fixtures/clusters/sample_cert.pem
new file mode 100644
index 00000000000..e39a2b34416
--- /dev/null
+++ b/spec/fixtures/clusters/sample_cert.pem
@@ -0,0 +1,33 @@
+-----BEGIN CERTIFICATE-----
+MIIFtTCCA52gAwIBAgIJAOutg3Kf2y5dMA0GCSqGSIb3DQEBBQUAMEUxCzAJBgNV
+BAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX
+aWRnaXRzIFB0eSBMdGQwHhcNMTcxMDI5MTgxOTU3WhcNMTgxMDI5MTgxOTU3WjBF
+MQswCQYDVQQGEwJBVTETMBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50
+ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIIC
+CgKCAgEAvQysroM3TLxaavadSPnFIltrYnxCnU4PvCR8971HMWXsq7Z4ShU4BbbE
+8yp7oUFjulSwW6DhdIvnQb8ihLKictLmrA0isQqrD/iNpKZ6/lI4DGWw4QzrvMnW
+V4yy2QZNpg9tzQHd4+xkeeIoG23RijDU/sPd5dqxF+rPHBfCVInmYvSzLvMhneNj
+Bt6gV02gU9e9hsnMatsDvEbvWKp7wcbPot0nWrfZulx2QAWyXy+zG9mJQUds6yc0
+4agAeT9JEb/xtRgR/kS0aUHSGnfSnhZiEn17s0PhTmbu7qSHgzgB+7oJrC9jPoUh
+S2Wo3n0xykAjHrA8wC/Ddw3L38S41VQ58GEfNchistPswyMmXo/Oenv9P3s/kCOI
+fndiksFNdqVo51y9Vjngj589hpOseFDyKmWPIEQZ9kxW/crjP6RZWWLHgz26KtxZ
+uJaoYL8VBbYfrk/bucw0Ma2GEOp8rTsBE7SvgejXZa78q+381Kzc/utW6VwSXqzY
+xeIitft0rXi17SZ+XoiTkIXtHn0ZwMtOXNDBADTpFmKa6wVACQilvcpOYD8gUHyH
+pB+EDRdST3M4Fiq1MBAVhk8Lj3tHSJ/1ymeF1PWSu57AnJlzerzq2fcfPotNNd37
+ZPNkPh0kxPLwxbAyrHflzx9qVVdI1irY9055mNSnhzlec4qJ9cECAwEAAaOBpzCB
+pDAdBgNVHQ4EFgQUnVa5dYPoIG/3+qXml0bX8+N16GwwdQYDVR0jBG4wbIAUnVa5
+dYPoIG/3+qXml0bX8+N16GyhSaRHMEUxCzAJBgNVBAYTAkFVMRMwEQYDVQQIEwpT
+b21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGSCCQDr
+rYNyn9suXTAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBBQUAA4ICAQAUg4cyxXi1
+VR8ejTpaAruRyJ1pEG9Kc3kiIRXODy60z3hJXnx9LkScPkWGiuL5XacfZ2rMd4bw
+oVXIyi8U1UHWfAH8EZdrFKkU92jCiL5soHUONxLAvQEJ/FTR/qijrpzLCxXBdVQE
+xFEDWUu6rxLFyjEwzwnRTLgpjR606fdb7qXHkuAMvZ/ezJj8j97hok3Odpn4lr2H
+6hMTpK7HmDBX+kmdJJ+yBrm9hG1Pzpl7QU0dkxZ+qJNFjYMLnziiTwkv0c5ZaA9E
+NykZUcOv3Sjb6spu1A/E2BSq4WTjkIjrogFlfimE1vmUmObTRJOqUB0Vky1kHEwN
+pg7QqIJQmof1EAIaSM/YpUWXyumBwGLDUEud1JUz05In9Q4IZjEwZSJwbQW4fUia
+A93m9rk3Lw3xsFcaUdPMFIXk0rPoF1IgmV/oqb0gK95lOWRLbN+AV8qpKPpcKXOc
+TkIdFE47ZisEDhIdF6wC1izEMLeMEsPAO7/Y6MY4nRxsinSe95lRaw+yQpzx+mvJ
+Q7n1kiHI9Pd5M3+CiQda0d/GO1o5ORJnUGJRvr9HKuNmE7Lif0As/N0AlywjzE7A
+6Z8AEiWyRV1ffshu1k2UKmzvZuZeGGKRtrIjbJIRAtpRVtVZZGzhq5/sojCLoJ+u
+texqFBUo/4mFRZa4pDItUdyOlDy2/LO/ag==
+-----END CERTIFICATE-----
diff --git a/spec/models/clusters/cluster_spec.rb b/spec/models/clusters/cluster_spec.rb
new file mode 100644
index 00000000000..e53ce8497f5
--- /dev/null
+++ b/spec/models/clusters/cluster_spec.rb
@@ -0,0 +1,180 @@
+require 'spec_helper'
+
+describe Clusters::Cluster do
+  it { is_expected.to belong_to(:user) }
+  it { is_expected.to have_many(:projects) }
+  it { is_expected.to have_one(:provider_gcp) }
+  it { is_expected.to have_one(:platform_kubernetes) }
+  it { is_expected.to delegate_method(:status).to(:provider) }
+  it { is_expected.to delegate_method(:status_reason).to(:provider) }
+  it { is_expected.to delegate_method(:status_name).to(:provider) }
+  it { is_expected.to delegate_method(:on_creation?).to(:provider) }
+  it { is_expected.to respond_to :project }
+
+  describe '.enabled' do
+    subject { described_class.enabled }
+
+    let!(:cluster) { create(:cluster, enabled: true) }
+
+    before do
+      create(:cluster, enabled: false)
+    end
+
+    it { is_expected.to contain_exactly(cluster) }
+  end
+
+  describe '.disabled' do
+    subject { described_class.disabled }
+
+    let!(:cluster) { create(:cluster, enabled: false) }
+
+    before do
+      create(:cluster, enabled: true)
+    end
+
+    it { is_expected.to contain_exactly(cluster) }
+  end
+
+  describe 'validation' do
+    subject { cluster.valid? }
+
+    context 'when validates name' do
+      context 'when provided by user' do
+        let!(:cluster) { build(:cluster, :provided_by_user, name: name) }
+
+        context 'when name is empty' do
+          let(:name) { '' }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is nil' do
+          let(:name) { nil }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is present' do
+          let(:name) { 'cluster-name-1' }
+
+          it { is_expected.to be_truthy }
+        end
+      end
+
+      context 'when provided by gcp' do
+        let!(:cluster) { build(:cluster, :provided_by_gcp, name: name) }
+
+        context 'when name is shorter than 1' do
+          let(:name) { '' }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is longer than 63' do
+          let(:name) { 'a' * 64 }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name includes invalid character' do
+          let(:name) { '!!!!!!' }
+
+          it { is_expected.to be_falsey }
+        end
+
+        context 'when name is present' do
+          let(:name) { 'cluster-name-1' }
+
+          it { is_expected.to be_truthy }
+        end
+
+        context 'when record is persisted' do
+          let(:name) { 'cluster-name-1' }
+
+          before do
+            cluster.save!
+          end
+
+          context 'when name is changed' do
+            before do
+              cluster.name = 'new-cluster-name'
+            end
+
+            it { is_expected.to be_falsey }
+          end
+
+          context 'when name is same' do
+            before do
+              cluster.name = name
+            end
+
+            it { is_expected.to be_truthy }
+          end
+        end
+      end
+    end
+
+    context 'when validates restrict_modification' do
+      context 'when creation is on going' do
+        let!(:cluster) { create(:cluster, :providing_by_gcp) }
+
+        it { expect(cluster.update(enabled: false)).to be_falsey }
+      end
+
+      context 'when creation is done' do
+        let!(:cluster) { create(:cluster, :provided_by_gcp) }
+
+        it { expect(cluster.update(enabled: false)).to be_truthy }
+      end
+    end
+  end
+
+  describe '#provider' do
+    subject { cluster.provider }
+
+    context 'when provider is gcp' do
+      let(:cluster) { create(:cluster, :provided_by_gcp) }
+
+      it 'returns a provider' do
+        is_expected.to eq(cluster.provider_gcp)
+        expect(subject.class.name.deconstantize).to eq(Clusters::Providers.to_s)
+      end
+    end
+
+    context 'when provider is user' do
+      let(:cluster) { create(:cluster, :provided_by_user) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+
+  describe '#platform' do
+    subject { cluster.platform }
+
+    context 'when platform is kubernetes' do
+      let(:cluster) { create(:cluster, :provided_by_user) }
+
+      it 'returns a platform' do
+        is_expected.to eq(cluster.platform_kubernetes)
+        expect(subject.class.name.deconstantize).to eq(Clusters::Platforms.to_s)
+      end
+    end
+  end
+
+  describe '#first_project' do
+    subject { cluster.first_project }
+
+    context 'when cluster belongs to a project' do
+      let(:cluster) { create(:cluster, :project) }
+      let(:project) { Clusters::Project.find_by_cluster_id(cluster.id).project }
+
+      it { is_expected.to eq(project) }
+    end
+
+    context 'when cluster does not belong to projects' do
+      let(:cluster) { create(:cluster) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+end
diff --git a/spec/models/clusters/platforms/kubernetes_spec.rb b/spec/models/clusters/platforms/kubernetes_spec.rb
new file mode 100644
index 00000000000..ec6ecee6ff2
--- /dev/null
+++ b/spec/models/clusters/platforms/kubernetes_spec.rb
@@ -0,0 +1,304 @@
+require 'spec_helper'
+
+describe Clusters::Platforms::Kubernetes, :use_clean_rails_memory_store_caching do
+  include KubernetesHelpers
+  include ReactiveCachingHelpers
+
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to be_kind_of(Gitlab::Kubernetes) }
+  it { is_expected.to be_kind_of(ReactiveCaching) }
+  it { is_expected.to respond_to :ca_pem }
+
+  describe 'before_validation' do
+    context 'when namespace includes upper case' do
+      let(:kubernetes) { create(:platform_kubernetes, namespace: namespace) }
+      let(:namespace) { 'ABC' }
+
+      it 'converts to lower case' do
+        expect(kubernetes.namespace).to eq('abc')
+      end
+    end
+  end
+
+  describe 'validation' do
+    subject { kubernetes.valid? }
+
+    context 'when validates namespace' do
+      let(:kubernetes) { build(:platform_kubernetes, namespace: namespace) }
+
+      context 'when namespace is blank' do
+        let(:namespace) { '' }
+
+        it { is_expected.to be_truthy }
+      end
+
+      context 'when namespace is longer than 63' do
+        let(:namespace) { 'a' * 64 }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when namespace includes invalid character' do
+        let(:namespace) { '!!!!!!' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when namespace is vaild' do
+        let(:namespace) { 'namespace-123' }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when validates api_url' do
+      context 'when updates a record' do
+        let(:kubernetes) { create(:platform_kubernetes) }
+
+        before do
+          kubernetes.api_url = api_url
+        end
+
+        context 'when api_url is invalid url' do
+          let(:api_url) { '!!!!!!' }
+
+          it { expect(kubernetes.save).to be_falsey }
+        end
+
+        context 'when api_url is nil' do
+          let(:api_url) { nil }
+
+          it { expect(kubernetes.save).to be_falsey }
+        end
+
+        context 'when api_url is valid url' do
+          let(:api_url) { 'https://111.111.111.111' }
+
+          it { expect(kubernetes.save).to be_truthy }
+        end
+      end
+
+      context 'when creates a record' do
+        let(:kubernetes) { build(:platform_kubernetes) }
+
+        before do
+          kubernetes.api_url = api_url
+        end
+
+        context 'when api_url is nil' do
+          let(:api_url) { nil }
+
+          it { expect(kubernetes.save).to be_truthy }
+        end
+      end
+    end
+
+    context 'when validates token' do
+      context 'when updates a record' do
+        let(:kubernetes) { create(:platform_kubernetes) }
+
+        before do
+          kubernetes.token = token
+        end
+
+        context 'when token is nil' do
+          let(:token) { nil }
+
+          it { expect(kubernetes.save).to be_falsey }
+        end
+      end
+
+      context 'when creates a record' do
+        let(:kubernetes) { build(:platform_kubernetes) }
+
+        before do
+          kubernetes.token = token
+        end
+
+        context 'when token is nil' do
+          let(:token) { nil }
+
+          it { expect(kubernetes.save).to be_truthy }
+        end
+      end
+    end
+  end
+
+  describe '#actual_namespace' do
+    subject { kubernetes.actual_namespace }
+
+    let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
+    let(:kubernetes) { create(:platform_kubernetes, namespace: namespace) }
+
+    context 'when namespace is present' do
+      let(:namespace) { 'namespace-123' }
+
+      it { is_expected.to eq(namespace) }
+    end
+
+    context 'when namespace is not present' do
+      let(:namespace) { nil }
+
+      it { is_expected.to eq("#{cluster.project.path}-#{cluster.project.id}") }
+    end
+  end
+
+  describe '.namespace_for_project' do
+    subject { described_class.namespace_for_project(project) }
+
+    let(:project) { create(:project) }
+
+    it { is_expected.to eq("#{project.path}-#{project.id}") }
+  end
+
+  describe '#default_namespace' do
+    subject { kubernetes.default_namespace }
+
+    let(:kubernetes) { create(:platform_kubernetes) }
+
+    context 'when cluster belongs to a project' do
+      let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
+
+      it { is_expected.to eq("#{cluster.project.path}-#{cluster.project.id}") }
+    end
+
+    context 'when cluster belongs to nothing' do
+      let!(:cluster) { create(:cluster, platform_kubernetes: kubernetes) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+
+  describe '#predefined_variables' do
+    let!(:cluster) { create(:cluster, :project, platform_kubernetes: kubernetes) }
+    let(:kubernetes) { create(:platform_kubernetes, api_url: api_url, ca_cert: ca_pem, token: token) }
+    let(:api_url) { 'https://kube.domain.com' }
+    let(:ca_pem) { 'CA PEM DATA' }
+    let(:token) { 'token' }
+
+    let(:kubeconfig) do
+      config_file = expand_fixture_path('config/kubeconfig.yml')
+      config = YAML.load(File.read(config_file))
+      config.dig('users', 0, 'user')['token'] = token
+      config.dig('contexts', 0, 'context')['namespace'] = namespace
+      config.dig('clusters', 0, 'cluster')['certificate-authority-data'] =
+        Base64.strict_encode64(ca_pem)
+
+      YAML.dump(config)
+    end
+
+    shared_examples 'setting variables' do
+      it 'sets the variables' do
+        expect(kubernetes.predefined_variables).to include(
+          { key: 'KUBE_URL', value: api_url, public: true },
+          { key: 'KUBE_TOKEN', value: token, public: false },
+          { key: 'KUBE_NAMESPACE', value: namespace, public: true },
+          { key: 'KUBECONFIG', value: kubeconfig, public: false, file: true },
+          { key: 'KUBE_CA_PEM', value: ca_pem, public: true },
+          { key: 'KUBE_CA_PEM_FILE', value: ca_pem, public: true, file: true }
+        )
+      end
+    end
+
+    context 'namespace is provided' do
+      let(:namespace) { 'my-project' }
+
+      before do
+        kubernetes.namespace = namespace
+      end
+
+      it_behaves_like 'setting variables'
+    end
+
+    context 'no namespace provided' do
+      let(:namespace) { kubernetes.actual_namespace }
+
+      it_behaves_like 'setting variables'
+
+      it 'sets the KUBE_NAMESPACE' do
+        kube_namespace = kubernetes.predefined_variables.find { |h| h[:key] == 'KUBE_NAMESPACE' }
+
+        expect(kube_namespace).not_to be_nil
+        expect(kube_namespace[:value]).to match(/\A#{Gitlab::PathRegex::PATH_REGEX_STR}-\d+\z/)
+      end
+    end
+  end
+
+  describe '#terminals' do
+    subject { service.terminals(environment) }
+
+    let!(:cluster) { create(:cluster, :project, platform_kubernetes: service) }
+    let(:project) { cluster.project }
+    let(:service) { create(:platform_kubernetes) }
+    let(:environment) { build(:environment, project: project, name: "env", slug: "env-000000") }
+
+    context 'with invalid pods' do
+      it 'returns no terminals' do
+        stub_reactive_cache(service, pods: [{ "bad" => "pod" }])
+
+        is_expected.to be_empty
+      end
+    end
+
+    context 'with valid pods' do
+      let(:pod) { kube_pod(app: environment.slug) }
+      let(:terminals) { kube_terminals(service, pod) }
+
+      before do
+        stub_reactive_cache(
+          service,
+          pods: [pod, pod, kube_pod(app: "should-be-filtered-out")]
+        )
+      end
+
+      it 'returns terminals' do
+        is_expected.to eq(terminals + terminals)
+      end
+
+      it 'uses max session time from settings' do
+        stub_application_setting(terminal_max_session_time: 600)
+
+        times = subject.map { |terminal| terminal[:max_session_time] }
+        expect(times).to eq [600, 600, 600, 600]
+      end
+    end
+  end
+
+  describe '#calculate_reactive_cache' do
+    subject { service.calculate_reactive_cache }
+
+    let!(:cluster) { create(:cluster, :project, enabled: enabled, platform_kubernetes: service) }
+    let(:service) { create(:platform_kubernetes, :ca_cert) }
+    let(:enabled) { true }
+
+    context 'when cluster is disabled' do
+      let(:enabled) { false }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'when kubernetes responds with valid pods' do
+      before do
+        stub_kubeclient_pods
+      end
+
+      it { is_expected.to eq(pods: [kube_pod]) }
+    end
+
+    context 'when kubernetes responds with 500s' do
+      before do
+        stub_kubeclient_pods(status: 500)
+      end
+
+      it { expect { subject }.to raise_error(KubeException) }
+    end
+
+    context 'when kubernetes responds with 404s' do
+      before do
+        stub_kubeclient_pods(status: 404)
+      end
+
+      it { is_expected.to eq(pods: []) }
+    end
+  end
+end
diff --git a/spec/models/clusters/project_spec.rb b/spec/models/clusters/project_spec.rb
new file mode 100644
index 00000000000..7d75d6ab345
--- /dev/null
+++ b/spec/models/clusters/project_spec.rb
@@ -0,0 +1,6 @@
+require 'spec_helper'
+
+describe Clusters::Project do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to belong_to(:project) }
+end
diff --git a/spec/models/clusters/providers/gcp_spec.rb b/spec/models/clusters/providers/gcp_spec.rb
new file mode 100644
index 00000000000..99eb8c46e9a
--- /dev/null
+++ b/spec/models/clusters/providers/gcp_spec.rb
@@ -0,0 +1,183 @@
+require 'spec_helper'
+
+describe Clusters::Providers::Gcp do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to validate_presence_of(:zone) }
+
+  describe 'default_value_for' do
+    let(:gcp) { build(:provider_gcp) }
+
+    it "has default value" do
+      expect(gcp.zone).to eq('us-central1-a')
+      expect(gcp.num_nodes).to eq(3)
+      expect(gcp.machine_type).to eq('n1-standard-4')
+    end
+  end
+
+  describe 'validation' do
+    subject { gcp.valid? }
+
+    context 'when validates gcp_project_id' do
+      let(:gcp) { build(:provider_gcp, gcp_project_id: gcp_project_id) }
+
+      context 'when gcp_project_id is shorter than 1' do
+        let(:gcp_project_id) { '' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when gcp_project_id is longer than 63' do
+        let(:gcp_project_id) { 'a' * 64 }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when gcp_project_id includes invalid character' do
+        let(:gcp_project_id) { '!!!!!!' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when gcp_project_id is valid' do
+        let(:gcp_project_id) { 'gcp-project-1' }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when validates num_nodes' do
+      let(:gcp) { build(:provider_gcp, num_nodes: num_nodes) }
+
+      context 'when num_nodes is string' do
+        let(:num_nodes) { 'A3' }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when num_nodes is nil' do
+        let(:num_nodes) { nil }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when num_nodes is smaller than 1' do
+        let(:num_nodes) { 0 }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when num_nodes is valid' do
+        let(:num_nodes) { 3 }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+  end
+
+  describe '#state_machine' do
+    context 'when any => [:created]' do
+      let(:gcp) { build(:provider_gcp, :creating) }
+
+      before do
+        gcp.make_created
+      end
+
+      it 'nullify access_token and operation_id' do
+        expect(gcp.access_token).to be_nil
+        expect(gcp.operation_id).to be_nil
+        expect(gcp).to be_created
+      end
+    end
+
+    context 'when any => [:creating]' do
+      let(:gcp) { build(:provider_gcp) }
+
+      context 'when operation_id is present' do
+        let(:operation_id) { 'operation-xxx' }
+
+        before do
+          gcp.make_creating(operation_id)
+        end
+
+        it 'sets operation_id' do
+          expect(gcp.operation_id).to eq(operation_id)
+          expect(gcp).to be_creating
+        end
+      end
+
+      context 'when operation_id is nil' do
+        let(:operation_id) { nil }
+
+        it 'raises an error' do
+          expect { gcp.make_creating(operation_id) }
+            .to raise_error('operation_id is required')
+        end
+      end
+    end
+
+    context 'when any => [:errored]' do
+      let(:gcp) { build(:provider_gcp, :creating) }
+      let(:status_reason) { 'err msg' }
+
+      it 'nullify access_token and operation_id' do
+        gcp.make_errored(status_reason)
+
+        expect(gcp.access_token).to be_nil
+        expect(gcp.operation_id).to be_nil
+        expect(gcp.status_reason).to eq(status_reason)
+        expect(gcp).to be_errored
+      end
+
+      context 'when status_reason is nil' do
+        let(:gcp) { build(:provider_gcp, :errored) }
+
+        it 'does not set status_reason' do
+          gcp.make_errored(nil)
+
+          expect(gcp.status_reason).not_to be_nil
+        end
+      end
+    end
+  end
+
+  describe '#on_creation?' do
+    subject { gcp.on_creation? }
+
+    context 'when status is creating' do
+      let(:gcp) { create(:provider_gcp, :creating) }
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when status is created' do
+      let(:gcp) { create(:provider_gcp, :created) }
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#api_client' do
+    subject { gcp.api_client }
+
+    context 'when status is creating' do
+      let(:gcp) { build(:provider_gcp, :creating) }
+
+      it 'returns Cloud Platform API clinet' do
+        expect(subject).to be_an_instance_of(GoogleApi::CloudPlatform::Client)
+        expect(subject.access_token).to eq(gcp.access_token)
+      end
+    end
+
+    context 'when status is created' do
+      let(:gcp) { build(:provider_gcp, :created) }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'when status is errored' do
+      let(:gcp) { build(:provider_gcp, :errored) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+end
diff --git a/spec/models/gcp/cluster_spec.rb b/spec/models/gcp/cluster_spec.rb
deleted file mode 100644
index 8f39fff6394..00000000000
--- a/spec/models/gcp/cluster_spec.rb
+++ /dev/null
@@ -1,264 +0,0 @@
-require 'spec_helper'
-
-describe Gcp::Cluster do
-  it { is_expected.to belong_to(:project) }
-  it { is_expected.to belong_to(:user) }
-  it { is_expected.to belong_to(:service) }
-
-  it { is_expected.to validate_presence_of(:gcp_cluster_zone) }
-
-  describe '.enabled' do
-    subject { described_class.enabled }
-
-    let!(:cluster) { create(:gcp_cluster, enabled: true) }
-
-    before do
-      create(:gcp_cluster, enabled: false)
-    end
-
-    it { is_expected.to contain_exactly(cluster) }
-  end
-
-  describe '.disabled' do
-    subject { described_class.disabled }
-
-    let!(:cluster) { create(:gcp_cluster, enabled: false) }
-
-    before do
-      create(:gcp_cluster, enabled: true)
-    end
-
-    it { is_expected.to contain_exactly(cluster) }
-  end
-
-  describe '#default_value_for' do
-    let(:cluster) { described_class.new }
-
-    it { expect(cluster.gcp_cluster_zone).to eq('us-central1-a') }
-    it { expect(cluster.gcp_cluster_size).to eq(3) }
-    it { expect(cluster.gcp_machine_type).to eq('n1-standard-4') }
-  end
-
-  describe '#validates' do
-    subject { cluster.valid? }
-
-    context 'when validates gcp_project_id' do
-      let(:cluster) { build(:gcp_cluster, gcp_project_id: gcp_project_id) }
-
-      context 'when valid' do
-        let(:gcp_project_id) { 'gcp-project-12345' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when empty' do
-        let(:gcp_project_id) { '' }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when too long' do
-        let(:gcp_project_id) { 'A' * 64 }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when includes abnormal character' do
-        let(:gcp_project_id) { '!!!!!!' }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates gcp_cluster_name' do
-      let(:cluster) { build(:gcp_cluster, gcp_cluster_name: gcp_cluster_name) }
-
-      context 'when valid' do
-        let(:gcp_cluster_name) { 'test-cluster' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when empty' do
-        let(:gcp_cluster_name) { '' }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when too long' do
-        let(:gcp_cluster_name) { 'A' * 64 }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when includes abnormal character' do
-        let(:gcp_cluster_name) { '!!!!!!' }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates gcp_cluster_size' do
-      let(:cluster) { build(:gcp_cluster, gcp_cluster_size: gcp_cluster_size) }
-
-      context 'when valid' do
-        let(:gcp_cluster_size) { 1 }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when zero' do
-        let(:gcp_cluster_size) { 0 }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates project_namespace' do
-      let(:cluster) { build(:gcp_cluster, project_namespace: project_namespace) }
-
-      context 'when valid' do
-        let(:project_namespace) { 'default-namespace' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when empty' do
-        let(:project_namespace) { '' }
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when too long' do
-        let(:project_namespace) { 'A' * 64 }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when includes abnormal character' do
-        let(:project_namespace) { '!!!!!!' }
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when validates restrict_modification' do
-      let(:cluster) { create(:gcp_cluster) }
-
-      before do
-        cluster.make_creating!
-      end
-
-      context 'when created' do
-        before do
-          cluster.make_created!
-        end
-
-        it { is_expected.to be_truthy }
-      end
-
-      context 'when creating' do
-        it { is_expected.to be_falsey }
-      end
-    end
-  end
-
-  describe '#state_machine' do
-    let(:cluster) { build(:gcp_cluster) }
-
-    context 'when transits to created state' do
-      before do
-        cluster.gcp_token = 'tmp'
-        cluster.gcp_operation_id = 'tmp'
-        cluster.make_created!
-      end
-
-      it 'nullify gcp_token and gcp_operation_id' do
-        expect(cluster.gcp_token).to be_nil
-        expect(cluster.gcp_operation_id).to be_nil
-        expect(cluster).to be_created
-      end
-    end
-
-    context 'when transits to errored state' do
-      let(:reason) { 'something wrong' }
-
-      before do
-        cluster.make_errored!(reason)
-      end
-
-      it 'sets status_reason' do
-        expect(cluster.status_reason).to eq(reason)
-        expect(cluster).to be_errored
-      end
-    end
-  end
-
-  describe '#project_namespace_placeholder' do
-    subject { cluster.project_namespace_placeholder }
-
-    let(:cluster) { create(:gcp_cluster) }
-
-    it 'returns a placeholder' do
-      is_expected.to eq("#{cluster.project.path}-#{cluster.project.id}")
-    end
-  end
-
-  describe '#on_creation?' do
-    subject { cluster.on_creation? }
-
-    let(:cluster) { create(:gcp_cluster) }
-
-    context 'when status is creating' do
-      before do
-        cluster.make_creating!
-      end
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when status is created' do
-      before do
-        cluster.make_created!
-      end
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#api_url' do
-    subject { cluster.api_url }
-
-    let(:cluster) { create(:gcp_cluster, :created_on_gke) }
-    let(:api_url) { 'https://' + cluster.endpoint }
-
-    it { is_expected.to eq(api_url) }
-  end
-
-  describe '#restrict_modification' do
-    subject { cluster.restrict_modification }
-
-    let(:cluster) { create(:gcp_cluster) }
-
-    context 'when status is created' do
-      before do
-        cluster.make_created!
-      end
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when status is creating' do
-      before do
-        cluster.make_creating!
-      end
-
-      it { is_expected.to be_falsey }
-
-      it 'sets error' do
-        is_expected.to be_falsey
-        expect(cluster.errors).not_to be_empty
-      end
-    end
-  end
-end