Revert "Merge branch '48098-mutual-auth-cluster-applications' into 'master'"

This reverts merge request !20801

34 files changed, 178 insertions, 534 deletions

diff --git a/app/models/clusters/applications/helm.rb b/app/models/clusters/applications/helm.rb
index b566edae7bb..58de3448577 100644
--- a/app/models/clusters/applications/helm.rb
+++ b/app/models/clusters/applications/helm.rb
@@ -1,26 +1,13 @@
-require 'openssl'
-
 module Clusters
   module Applications
     class Helm < ActiveRecord::Base
       self.table_name = 'clusters_applications_helm'
 
-      attr_encrypted :ca_key,
-        mode: :per_attribute_iv,
-        key: Settings.attr_encrypted_db_key_base_truncated,
-        algorithm: 'aes-256-cbc'
-
       include ::Clusters::Concerns::ApplicationCore
       include ::Clusters::Concerns::ApplicationStatus
 
       default_value_for :version, Gitlab::Kubernetes::Helm::HELM_VERSION
 
-      before_create :create_keys_and_certs
-
-      def issue_client_cert
-        ca_cert_obj.issue
-      end
-
       def set_initial_status
         return unless not_installable?
 
@@ -28,41 +15,7 @@ module Clusters
       end
 
       def install_command
-        Gitlab::Kubernetes::Helm::InitCommand.new(
-          name: name,
-          files: files
-        )
-      end
-
-      def has_ssl?
-        ca_key.present? && ca_cert.present?
-      end
-
-      private
-
-      def files
-        {
-          'ca.pem': ca_cert,
-          'cert.pem': tiller_cert.cert_string,
-          'key.pem': tiller_cert.key_string
-        }
-      end
-
-      def create_keys_and_certs
-        ca_cert = Gitlab::Kubernetes::Helm::Certificate.generate_root
-        self.ca_key = ca_cert.key_string
-        self.ca_cert = ca_cert.cert_string
-      end
-
-      def tiller_cert
-        @tiller_cert ||= ca_cert_obj.issue(expires_in: Gitlab::Kubernetes::Helm::Certificate::INFINITE_EXPIRY)
-      end
-
-      def ca_cert_obj
-        return unless has_ssl?
-
-        Gitlab::Kubernetes::Helm::Certificate
-          .from_strings(ca_key, ca_cert)
+        Gitlab::Kubernetes::Helm::InitCommand.new(name)
       end
     end
   end
diff --git a/app/models/clusters/applications/ingress.rb b/app/models/clusters/applications/ingress.rb
index 64810812531..27fc3b85465 100644
--- a/app/models/clusters/applications/ingress.rb
+++ b/app/models/clusters/applications/ingress.rb
@@ -32,9 +32,9 @@ module Clusters
 
       def install_command
         Gitlab::Kubernetes::Helm::InstallCommand.new(
-          name: name,
+          name,
           chart: chart,
-          files: files
+          values: values
         )
       end
 
diff --git a/app/models/clusters/applications/jupyter.rb b/app/models/clusters/applications/jupyter.rb
index cff5a423acb..975d434e1a4 100644
--- a/app/models/clusters/applications/jupyter.rb
+++ b/app/models/clusters/applications/jupyter.rb
@@ -35,9 +35,9 @@ module Clusters
 
       def install_command
         Gitlab::Kubernetes::Helm::InstallCommand.new(
-          name: name,
+          name,
           chart: chart,
-          files: files,
+          values: values,
           repository: repository
         )
       end
diff --git a/app/models/clusters/applications/prometheus.rb b/app/models/clusters/applications/prometheus.rb
index 22815cc1219..ea6ec4d6b03 100644
--- a/app/models/clusters/applications/prometheus.rb
+++ b/app/models/clusters/applications/prometheus.rb
@@ -43,10 +43,10 @@ module Clusters
 
       def install_command
         Gitlab::Kubernetes::Helm::InstallCommand.new(
-          name: name,
+          name,
           chart: chart,
           version: version,
-          files: files
+          values: values
         )
       end
 
diff --git a/app/models/clusters/applications/runner.rb b/app/models/clusters/applications/runner.rb
index 4c894b5376d..e6f795f3e0b 100644
--- a/app/models/clusters/applications/runner.rb
+++ b/app/models/clusters/applications/runner.rb
@@ -28,9 +28,9 @@ module Clusters
 
       def install_command
         Gitlab::Kubernetes::Helm::InstallCommand.new(
-          name: name,
+          name,
           chart: chart,
-          files: files,
+          values: values,
           repository: repository
         )
       end
diff --git a/app/models/clusters/concerns/application_data.rb b/app/models/clusters/concerns/application_data.rb
index d66f09d48b5..96ac757e99e 100644
--- a/app/models/clusters/concerns/application_data.rb
+++ b/app/models/clusters/concerns/application_data.rb
@@ -12,34 +12,8 @@ module Clusters
           File.read(chart_values_file)
         end
 
-        def files
-          @files ||= begin
-            files = { 'values.yaml': values }
-
-            files.merge!(certificate_files) if cluster.application_helm.has_ssl?
-
-            files
-          end
-        end
-
         private
 
-        def certificate_files
-          {
-            'ca.pem': ca_cert,
-            'cert.pem': helm_cert.cert_string,
-            'key.pem': helm_cert.key_string
-          }
-        end
-
-        def ca_cert
-          cluster.application_helm.ca_cert
-        end
-
-        def helm_cert
-          @helm_cert ||= cluster.application_helm.issue_client_cert
-        end
-
         def chart_values_file
           "#{Rails.root}/vendor/#{name}/values.yaml"
         end
diff --git a/changelogs/unreleased/48098-mutual-auth-cluster-applications.yml b/changelogs/unreleased/48098-mutual-auth-cluster-applications.yml
deleted file mode 100644
index 36e39cf31db..00000000000
--- a/changelogs/unreleased/48098-mutual-auth-cluster-applications.yml
+++ /dev/null
@@ -1,6 +0,0 @@
----
-title: Ensure installed Helm Tiller For GitLab Managed Apps Is protected by mutual
-  auth
-merge_request: 20801
-author:
-type: changed
diff --git a/db/migrate/20180612103626_add_columns_for_helm_tiller_certificates.rb b/db/migrate/20180612103626_add_columns_for_helm_tiller_certificates.rb
deleted file mode 100644
index d9f15b6b67d..00000000000
--- a/db/migrate/20180612103626_add_columns_for_helm_tiller_certificates.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-class AddColumnsForHelmTillerCertificates < ActiveRecord::Migration
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-
-  def change
-    add_column :clusters_applications_helm, :encrypted_ca_key, :text
-    add_column :clusters_applications_helm, :encrypted_ca_key_iv, :text
-    add_column :clusters_applications_helm, :ca_cert, :text
-  end
-end
diff --git a/db/schema.rb b/db/schema.rb
index 0638de8c6ff..a5f7b8149c6 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -636,9 +636,6 @@ ActiveRecord::Schema.define(version: 20180722103201) do
     t.integer "status", null: false
     t.string "version", null: false
     t.text "status_reason"
-    t.text "encrypted_ca_key"
-    t.text "encrypted_ca_key_iv"
-    t.text "ca_cert"
   end
 
   create_table "clusters_applications_ingress", force: :cascade do |t|
diff --git a/lib/gitlab/kubernetes/config_map.rb b/lib/gitlab/kubernetes/config_map.rb
index 9e55dae137c..8a8a59a9cd4 100644
--- a/lib/gitlab/kubernetes/config_map.rb
+++ b/lib/gitlab/kubernetes/config_map.rb
@@ -1,15 +1,15 @@
 module Gitlab
   module Kubernetes
     class ConfigMap
-      def initialize(name, files)
+      def initialize(name, values = "")
         @name = name
-        @files = files
+        @values = values
       end
 
       def generate
         resource = ::Kubeclient::Resource.new
         resource.metadata = metadata
-        resource.data = files
+        resource.data = { values: values }
         resource
       end
 
@@ -19,7 +19,7 @@ module Gitlab
 
       private
 
-      attr_reader :name, :files
+      attr_reader :name, :values
 
       def metadata
         {
diff --git a/lib/gitlab/kubernetes/helm/api.rb b/lib/gitlab/kubernetes/helm/api.rb
index d65374cc23b..c4de9a398cc 100644
--- a/lib/gitlab/kubernetes/helm/api.rb
+++ b/lib/gitlab/kubernetes/helm/api.rb
@@ -9,7 +9,7 @@ module Gitlab
 
         def install(command)
           namespace.ensure_exists!
-          create_config_map(command)
+          create_config_map(command) if command.config_map?
           kubeclient.create_pod(command.pod_resource)
         end
 
diff --git a/lib/gitlab/kubernetes/helm/base_command.rb b/lib/gitlab/kubernetes/helm/base_command.rb
index afcfd109de0..f9ebe53d6af 100644
--- a/lib/gitlab/kubernetes/helm/base_command.rb
+++ b/lib/gitlab/kubernetes/helm/base_command.rb
@@ -1,7 +1,13 @@
 module Gitlab
   module Kubernetes
     module Helm
-      module BaseCommand
+      class BaseCommand
+        attr_reader :name
+
+        def initialize(name)
+          @name = name
+        end
+
         def pod_resource
           Gitlab::Kubernetes::Helm::Pod.new(self, namespace).generate
         end
@@ -18,32 +24,16 @@ module Gitlab
           HEREDOC
         end
 
-        def pod_name
-          "install-#{name}"
-        end
-
-        def config_map_resource
-          Gitlab::Kubernetes::ConfigMap.new(name, files).generate
+        def config_map?
+          false
         end
 
-        def file_names
-          files.keys
-        end
-
-        def name
-          raise "Not implemented"
-        end
-
-        def files
-          raise "Not implemented"
+        def pod_name
+          "install-#{name}"
         end
 
         private
 
-        def files_dir
-          "/data/helm/#{name}/config"
-        end
-
         def namespace
           Gitlab::Kubernetes::Helm::NAMESPACE
         end
diff --git a/lib/gitlab/kubernetes/helm/certificate.rb b/lib/gitlab/kubernetes/helm/certificate.rb
deleted file mode 100644
index c344add82cd..00000000000
--- a/lib/gitlab/kubernetes/helm/certificate.rb
+++ /dev/null
@@ -1,72 +0,0 @@
-module Gitlab
-  module Kubernetes
-    module Helm
-      class Certificate
-        INFINITE_EXPIRY = 1000.years
-        SHORT_EXPIRY = 30.minutes
-
-        attr_reader :key, :cert
-
-        def key_string
-          @key.to_s
-        end
-
-        def cert_string
-          @cert.to_pem
-        end
-
-        def self.from_strings(key_string, cert_string)
-          key = OpenSSL::PKey::RSA.new(key_string)
-          cert = OpenSSL::X509::Certificate.new(cert_string)
-          new(key, cert)
-        end
-
-        def self.generate_root
-          _issue(signed_by: nil, expires_in: INFINITE_EXPIRY, certificate_authority: true)
-        end
-
-        def issue(expires_in: SHORT_EXPIRY)
-          self.class._issue(signed_by: self, expires_in: expires_in, certificate_authority: false)
-        end
-
-        private
-
-        def self._issue(signed_by:, expires_in:, certificate_authority:)
-          key = OpenSSL::PKey::RSA.new(4096)
-          public_key = key.public_key
-
-          subject = OpenSSL::X509::Name.parse("/C=US")
-
-          cert = OpenSSL::X509::Certificate.new
-          cert.subject = subject
-
-          cert.issuer = signed_by&.cert&.subject || subject
-
-          cert.not_before = Time.now
-          cert.not_after = expires_in.from_now
-          cert.public_key = public_key
-          cert.serial = 0x0
-          cert.version = 2
-
-          if certificate_authority
-            extension_factory = OpenSSL::X509::ExtensionFactory.new
-            extension_factory.subject_certificate = cert
-            extension_factory.issuer_certificate = cert
-            cert.add_extension(extension_factory.create_extension('subjectKeyIdentifier', 'hash'))
-            cert.add_extension(extension_factory.create_extension('basicConstraints', 'CA:TRUE', true))
-            cert.add_extension(extension_factory.create_extension('keyUsage', 'cRLSign,keyCertSign', true))
-          end
-
-          cert.sign(signed_by&.key || key, OpenSSL::Digest::SHA256.new)
-
-          new(key, cert)
-        end
-
-        def initialize(key, cert)
-          @key = key
-          @cert = cert
-        end
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/kubernetes/helm/init_command.rb b/lib/gitlab/kubernetes/helm/init_command.rb
index a4546509515..a02e64561f6 100644
--- a/lib/gitlab/kubernetes/helm/init_command.rb
+++ b/lib/gitlab/kubernetes/helm/init_command.rb
@@ -1,16 +1,7 @@
 module Gitlab
   module Kubernetes
     module Helm
-      class InitCommand
-        include BaseCommand
-
-        attr_reader :name, :files
-
-        def initialize(name:, files:)
-          @name = name
-          @files = files
-        end
-
+      class InitCommand < BaseCommand
         def generate_script
           super + [
             init_helm_command
@@ -20,12 +11,7 @@ module Gitlab
         private
 
         def init_helm_command
-          tls_flags = "--tiller-tls" \
-            " --tiller-tls-verify --tls-ca-cert #{files_dir}/ca.pem" \
-            " --tiller-tls-cert #{files_dir}/cert.pem" \
-            " --tiller-tls-key #{files_dir}/key.pem"
-
-          "helm init #{tls_flags} >/dev/null"
+          "helm init >/dev/null"
         end
       end
     end
diff --git a/lib/gitlab/kubernetes/helm/install_command.rb b/lib/gitlab/kubernetes/helm/install_command.rb
index c7d6a9c5b4d..d2133a6d65b 100644
--- a/lib/gitlab/kubernetes/helm/install_command.rb
+++ b/lib/gitlab/kubernetes/helm/install_command.rb
@@ -1,16 +1,14 @@
 module Gitlab
   module Kubernetes
     module Helm
-      class InstallCommand
-        include BaseCommand
+      class InstallCommand < BaseCommand
+        attr_reader :name, :chart, :version, :repository, :values
 
-        attr_reader :name, :files, :chart, :version, :repository
-
-        def initialize(name:, chart:, files:, version: nil, repository: nil)
+        def initialize(name, chart:, values:, version: nil, repository: nil)
           @name = name
           @chart = chart
           @version = version
-          @files = files
+          @values = values
           @repository = repository
         end
 
@@ -22,6 +20,14 @@ module Gitlab
           ].compact.join("\n")
         end
 
+        def config_map?
+          true
+        end
+
+        def config_map_resource
+          Gitlab::Kubernetes::ConfigMap.new(name, values).generate
+        end
+
         private
 
         def init_command
@@ -33,27 +39,14 @@ module Gitlab
         end
 
         def script_command
-          "helm install" \
-          "#{optional_tls_flags} " \
-          "#{chart} " \
-          "--name #{name}" \
-          "#{optional_version_flag} " \
-          "--namespace #{Gitlab::Kubernetes::Helm::NAMESPACE} " \
-          "-f /data/helm/#{name}/config/values.yaml >/dev/null\n"
+          <<~HEREDOC
+          helm install #{chart} --name #{name}#{optional_version_flag} --namespace #{Gitlab::Kubernetes::Helm::NAMESPACE} -f /data/helm/#{name}/config/values.yaml >/dev/null
+          HEREDOC
         end
 
         def optional_version_flag
           " --version #{version}" if version
         end
-
-        def optional_tls_flags
-          return unless files.key?(:'ca.pem')
-
-          " --tls" \
-            " --tls-ca-cert #{files_dir}/ca.pem" \
-            " --tls-cert #{files_dir}/cert.pem" \
-            " --tls-key #{files_dir}/key.pem"
-        end
       end
     end
   end
diff --git a/lib/gitlab/kubernetes/helm/pod.rb b/lib/gitlab/kubernetes/helm/pod.rb
index 6e5d3388405..1e12299eefd 100644
--- a/lib/gitlab/kubernetes/helm/pod.rb
+++ b/lib/gitlab/kubernetes/helm/pod.rb
@@ -10,8 +10,10 @@ module Gitlab
         def generate
           spec = { containers: [container_specification], restartPolicy: 'Never' }
 
-          spec[:volumes] = volumes_specification
-          spec[:containers][0][:volumeMounts] = volume_mounts_specification
+          if command.config_map?
+            spec[:volumes] = volumes_specification
+            spec[:containers][0][:volumeMounts] = volume_mounts_specification
+          end
 
           ::Kubeclient::Resource.new(metadata: metadata, spec: spec)
         end
@@ -59,7 +61,7 @@ module Gitlab
               name: 'configuration-volume',
               configMap: {
                 name: "values-content-configuration-#{command.name}",
-                items: command.file_names.map { |name| { key: name, path: name } }
+                items: [{ key: 'values', path: 'values.yaml' }]
               }
             }
           ]
diff --git a/qa/qa/factory/resource/kubernetes_cluster.rb b/qa/qa/factory/resource/kubernetes_cluster.rb
index ef2ea72b170..1c9e5f94b22 100644
--- a/qa/qa/factory/resource/kubernetes_cluster.rb
+++ b/qa/qa/factory/resource/kubernetes_cluster.rb
@@ -44,11 +44,10 @@ module QA
               page.await_installed(:helm)
 
               page.install!(:ingress) if @install_ingress
-              page.install!(:prometheus) if @install_prometheus
-              page.install!(:runner) if @install_runner
-
               page.await_installed(:ingress) if @install_ingress
+              page.install!(:prometheus) if @install_prometheus
               page.await_installed(:prometheus) if @install_prometheus
+              page.install!(:runner) if @install_runner
               page.await_installed(:runner) if @install_runner
             end
           end
diff --git a/qa/qa/page/project/operations/kubernetes/show.rb b/qa/qa/page/project/operations/kubernetes/show.rb
index e831edeb89e..4923304133e 100644
--- a/qa/qa/page/project/operations/kubernetes/show.rb
+++ b/qa/qa/page/project/operations/kubernetes/show.rb
@@ -16,7 +16,6 @@ module QA
 
             def install!(application_name)
               within(".js-cluster-application-row-#{application_name}") do
-                page.has_button?('Install', wait: 30)
                 click_on 'Install'
               end
             end
diff --git a/spec/factories/clusters/applications/helm.rb b/spec/factories/clusters/applications/helm.rb
index 7c4a440b9a9..3e4277e4ba6 100644
--- a/spec/factories/clusters/applications/helm.rb
+++ b/spec/factories/clusters/applications/helm.rb
@@ -32,21 +32,11 @@ FactoryBot.define do
       updated_at ClusterWaitForAppInstallationWorker::TIMEOUT.ago
     end
 
-    factory :clusters_applications_ingress, class: Clusters::Applications::Ingress do
-      cluster factory: %i(cluster with_installed_helm provided_by_gcp)
-    end
-
-    factory :clusters_applications_prometheus, class: Clusters::Applications::Prometheus do
-      cluster factory: %i(cluster with_installed_helm provided_by_gcp)
-    end
-
-    factory :clusters_applications_runner, class: Clusters::Applications::Runner do
-      cluster factory: %i(cluster with_installed_helm provided_by_gcp)
-    end
-
+    factory :clusters_applications_ingress, class: Clusters::Applications::Ingress
+    factory :clusters_applications_prometheus, class: Clusters::Applications::Prometheus
+    factory :clusters_applications_runner, class: Clusters::Applications::Runner
     factory :clusters_applications_jupyter, class: Clusters::Applications::Jupyter do
       oauth_application factory: :oauth_application
-      cluster factory: %i(cluster with_installed_helm provided_by_gcp)
     end
   end
 end
diff --git a/spec/factories/clusters/clusters.rb b/spec/factories/clusters/clusters.rb
index bbeba8ce8b9..0430762c1ff 100644
--- a/spec/factories/clusters/clusters.rb
+++ b/spec/factories/clusters/clusters.rb
@@ -36,9 +36,5 @@ FactoryBot.define do
     trait :production_environment do
       sequence(:environment_scope) { |n| "production#{n}/*" }
     end
-
-    trait :with_installed_helm do
-      application_helm factory: %i(clusters_applications_helm installed)
-    end
   end
 end
diff --git a/spec/features/projects/clusters/applications_spec.rb b/spec/features/projects/clusters/applications_spec.rb
index 71d715237f5..a65ca662350 100644
--- a/spec/features/projects/clusters/applications_spec.rb
+++ b/spec/features/projects/clusters/applications_spec.rb
@@ -46,14 +46,12 @@ describe 'Clusters Applications', :js do
           end
         end
 
-        it 'they see status transition' do
+        it 'he sees status transition' do
           page.within('.js-cluster-application-row-helm') do
             # FE sends request and gets the response, then the buttons is "Install"
             expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
             expect(page).to have_css('.js-cluster-application-install-button', exact_text: 'Install')
 
-            wait_until_helm_created!
-
             Clusters::Cluster.last.application_helm.make_installing!
 
             # FE starts polling and update the buttons to "Installing"
@@ -85,7 +83,7 @@ describe 'Clusters Applications', :js do
             end
           end
 
-          it 'they see status transition' do
+          it 'he sees status transition' do
             page.within('.js-cluster-application-row-ingress') do
               # FE sends request and gets the response, then the buttons is "Install"
               expect(page).to have_css('.js-cluster-application-install-button[disabled]')
@@ -118,14 +116,4 @@ describe 'Clusters Applications', :js do
       end
     end
   end
-
-  def wait_until_helm_created!
-    retries = 0
-
-    while Clusters::Cluster.last.application_helm.nil?
-      raise "Timed out waiting for helm application to be created in DB" if (retries += 1) > 3
-
-      sleep(1)
-    end
-  end
 end
diff --git a/spec/lib/gitlab/kubernetes/config_map_spec.rb b/spec/lib/gitlab/kubernetes/config_map_spec.rb
index fe65d03875f..e253b291277 100644
--- a/spec/lib/gitlab/kubernetes/config_map_spec.rb
+++ b/spec/lib/gitlab/kubernetes/config_map_spec.rb
@@ -3,7 +3,7 @@ require 'spec_helper'
 describe Gitlab::Kubernetes::ConfigMap do
   let(:kubeclient) { double('kubernetes client') }
   let(:application) { create(:clusters_applications_prometheus) }
-  let(:config_map) { described_class.new(application.name, application.files) }
+  let(:config_map) { described_class.new(application.name, application.values) }
   let(:namespace) { Gitlab::Kubernetes::Helm::NAMESPACE }
 
   let(:metadata) do
@@ -15,7 +15,7 @@ describe Gitlab::Kubernetes::ConfigMap do
   end
 
   describe '#generate' do
-    let(:resource) { ::Kubeclient::Resource.new(metadata: metadata, data: application.files) }
+    let(:resource) { ::Kubeclient::Resource.new(metadata: metadata, data: { values: application.values }) }
     subject { config_map.generate }
 
     it 'should build a Kubeclient Resource' do
diff --git a/spec/lib/gitlab/kubernetes/helm/api_spec.rb b/spec/lib/gitlab/kubernetes/helm/api_spec.rb
index 341f71a3e49..6e9b4ca0869 100644
--- a/spec/lib/gitlab/kubernetes/helm/api_spec.rb
+++ b/spec/lib/gitlab/kubernetes/helm/api_spec.rb
@@ -39,7 +39,7 @@ describe Gitlab::Kubernetes::Helm::Api do
     end
 
     context 'with a ConfigMap' do
-      let(:resource) { Gitlab::Kubernetes::ConfigMap.new(application.name, application.files).generate }
+      let(:resource) { Gitlab::Kubernetes::ConfigMap.new(application.name, application.values).generate }
 
       it 'creates a ConfigMap on kubeclient' do
         expect(client).to receive(:create_config_map).with(resource).once
diff --git a/spec/lib/gitlab/kubernetes/helm/base_command_spec.rb b/spec/lib/gitlab/kubernetes/helm/base_command_spec.rb
index d50616e95e8..7be8be54d5e 100644
--- a/spec/lib/gitlab/kubernetes/helm/base_command_spec.rb
+++ b/spec/lib/gitlab/kubernetes/helm/base_command_spec.rb
@@ -2,25 +2,7 @@ require 'spec_helper'
 
 describe Gitlab::Kubernetes::Helm::BaseCommand do
   let(:application) { create(:clusters_applications_helm) }
-  let(:test_class) do
-    Class.new do
-      include Gitlab::Kubernetes::Helm::BaseCommand
-
-      def name
-        "test-class-name"
-      end
-
-      def files
-        {
-          some: 'value'
-        }
-      end
-    end
-  end
-
-  let(:base_command) do
-    test_class.new
-  end
+  let(:base_command) { described_class.new(application.name) }
 
   subject { base_command }
 
@@ -36,9 +18,15 @@ describe Gitlab::Kubernetes::Helm::BaseCommand do
     end
   end
 
+  describe '#config_map?' do
+    subject { base_command.config_map? }
+
+    it { is_expected.to be_falsy }
+  end
+
   describe '#pod_name' do
     subject { base_command.pod_name }
 
-    it { is_expected.to eq('install-test-class-name') }
+    it { is_expected.to eq('install-helm') }
   end
 end
diff --git a/spec/lib/gitlab/kubernetes/helm/certificate_spec.rb b/spec/lib/gitlab/kubernetes/helm/certificate_spec.rb
deleted file mode 100644
index f8d00c95a36..00000000000
--- a/spec/lib/gitlab/kubernetes/helm/certificate_spec.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-require 'spec_helper'
-
-describe Gitlab::Kubernetes::Helm::Certificate do
-  describe '.generate_root' do
-    subject { described_class.generate_root }
-
-    it 'should generate a root CA that expires a long way in the future' do
-      expect(subject.cert.not_after).to be > 999.years.from_now
-    end
-  end
-
-  describe '#issue' do
-    subject { described_class.generate_root.issue }
-
-    it 'should generate a cert that expires soon' do
-      expect(subject.cert.not_after).to be < 60.minutes.from_now
-    end
-
-    context 'passing in INFINITE_EXPIRY' do
-      subject { described_class.generate_root.issue(expires_in: described_class::INFINITE_EXPIRY) }
-
-      it 'should generate a cert that expires a long way in the future' do
-        expect(subject.cert.not_after).to be > 999.years.from_now
-      end
-    end
-  end
-end
diff --git a/spec/lib/gitlab/kubernetes/helm/init_command_spec.rb b/spec/lib/gitlab/kubernetes/helm/init_command_spec.rb
index dcbc046cf00..89e36a298f8 100644
--- a/spec/lib/gitlab/kubernetes/helm/init_command_spec.rb
+++ b/spec/lib/gitlab/kubernetes/helm/init_command_spec.rb
@@ -2,9 +2,9 @@ require 'spec_helper'
 
 describe Gitlab::Kubernetes::Helm::InitCommand do
   let(:application) { create(:clusters_applications_helm) }
-  let(:commands) { 'helm init --tiller-tls --tiller-tls-verify --tls-ca-cert /data/helm/helm/config/ca.pem --tiller-tls-cert /data/helm/helm/config/cert.pem --tiller-tls-key /data/helm/helm/config/key.pem >/dev/null' }
+  let(:commands) { 'helm init >/dev/null' }
 
-  subject { described_class.new(name: application.name, files: {}) }
+  subject { described_class.new(application.name) }
 
   it_behaves_like 'helm commands'
 end
diff --git a/spec/lib/gitlab/kubernetes/helm/install_command_spec.rb b/spec/lib/gitlab/kubernetes/helm/install_command_spec.rb
index 51221e54d89..25c6fa3b9a3 100644
--- a/spec/lib/gitlab/kubernetes/helm/install_command_spec.rb
+++ b/spec/lib/gitlab/kubernetes/helm/install_command_spec.rb
@@ -1,82 +1,83 @@
 require 'rails_helper'
 
 describe Gitlab::Kubernetes::Helm::InstallCommand do
-  let(:files) { { 'ca.pem': 'some file content' } }
-  let(:repository) { 'https://repository.example.com' }
-  let(:version) { '1.2.3' }
-
-  let(:install_command) do
-    described_class.new(
-      name: 'app-name',
-      chart: 'chart-name',
-      files: files,
-      version: version, repository: repository
-    )
-  end
+  let(:application) { create(:clusters_applications_prometheus) }
+  let(:namespace) { Gitlab::Kubernetes::Helm::NAMESPACE }
+  let(:install_command) { application.install_command }
 
   subject { install_command }
 
-  it_behaves_like 'helm commands' do
-    let(:commands) do
-      <<~EOS
-      helm init --client-only >/dev/null
-      helm repo add app-name https://repository.example.com
-      helm install --tls --tls-ca-cert /data/helm/app-name/config/ca.pem --tls-cert /data/helm/app-name/config/cert.pem --tls-key /data/helm/app-name/config/key.pem chart-name --name app-name --version 1.2.3 --namespace gitlab-managed-apps -f /data/helm/app-name/config/values.yaml >/dev/null
-      EOS
+  context 'for ingress' do
+    let(:application) { create(:clusters_applications_ingress) }
+
+    it_behaves_like 'helm commands' do
+      let(:commands) do
+        <<~EOS
+         helm init --client-only >/dev/null
+         helm install #{application.chart} --name #{application.name} --namespace #{namespace} -f /data/helm/#{application.name}/config/values.yaml >/dev/null
+        EOS
+      end
     end
   end
 
-  context 'when there is no repository' do
-    let(:repository) { nil }
+  context 'for prometheus' do
+    let(:application) { create(:clusters_applications_prometheus) }
 
     it_behaves_like 'helm commands' do
       let(:commands) do
         <<~EOS
          helm init --client-only >/dev/null
-         helm install --tls --tls-ca-cert /data/helm/app-name/config/ca.pem --tls-cert /data/helm/app-name/config/cert.pem --tls-key /data/helm/app-name/config/key.pem chart-name --name app-name --version 1.2.3 --namespace gitlab-managed-apps -f /data/helm/app-name/config/values.yaml >/dev/null
+         helm install #{application.chart} --name #{application.name} --version #{application.version} --namespace #{namespace} -f /data/helm/#{application.name}/config/values.yaml >/dev/null
         EOS
       end
     end
   end
 
-  context 'when there is no ca.pem file' do
-    let(:files) { { 'file.txt': 'some content' } }
+  context 'for runner' do
+    let(:ci_runner) { create(:ci_runner) }
+    let(:application) { create(:clusters_applications_runner, runner: ci_runner) }
 
     it_behaves_like 'helm commands' do
       let(:commands) do
         <<~EOS
          helm init --client-only >/dev/null
-         helm repo add app-name https://repository.example.com
-         helm install chart-name --name app-name --version 1.2.3 --namespace gitlab-managed-apps -f /data/helm/app-name/config/values.yaml >/dev/null
+         helm repo add #{application.name} #{application.repository}
+         helm install #{application.chart} --name #{application.name} --namespace #{namespace} -f /data/helm/#{application.name}/config/values.yaml >/dev/null
         EOS
       end
     end
   end
 
-  context 'when there is no version' do
-    let(:version) { nil }
+  context 'for jupyter' do
+    let(:application) { create(:clusters_applications_jupyter) }
 
     it_behaves_like 'helm commands' do
       let(:commands) do
         <<~EOS
          helm init --client-only >/dev/null
-         helm repo add app-name https://repository.example.com
-         helm install --tls --tls-ca-cert /data/helm/app-name/config/ca.pem --tls-cert /data/helm/app-name/config/cert.pem --tls-key /data/helm/app-name/config/key.pem chart-name --name app-name --namespace gitlab-managed-apps -f /data/helm/app-name/config/values.yaml >/dev/null
+         helm repo add #{application.name} #{application.repository}
+         helm install #{application.chart} --name #{application.name} --namespace #{namespace} -f /data/helm/#{application.name}/config/values.yaml >/dev/null
         EOS
       end
     end
   end
 
+  describe '#config_map?' do
+    subject { install_command.config_map? }
+
+    it { is_expected.to be_truthy }
+  end
+
   describe '#config_map_resource' do
     let(:metadata) do
       {
-        name: "values-content-configuration-app-name",
-        namespace: 'gitlab-managed-apps',
-        labels: { name: "values-content-configuration-app-name" }
+        name: "values-content-configuration-#{application.name}",
+        namespace: namespace,
+        labels: { name: "values-content-configuration-#{application.name}" }
       }
     end
 
-    let(:resource) { ::Kubeclient::Resource.new(metadata: metadata, data: files) }
+    let(:resource) { ::Kubeclient::Resource.new(metadata: metadata, data: { values: application.values }) }
 
     subject { install_command.config_map_resource }
 
diff --git a/spec/lib/gitlab/kubernetes/helm/pod_spec.rb b/spec/lib/gitlab/kubernetes/helm/pod_spec.rb
index ec64193c0b2..43adc80d576 100644
--- a/spec/lib/gitlab/kubernetes/helm/pod_spec.rb
+++ b/spec/lib/gitlab/kubernetes/helm/pod_spec.rb
@@ -2,13 +2,14 @@ require 'rails_helper'
 
 describe Gitlab::Kubernetes::Helm::Pod do
   describe '#generate' do
-    let(:app) {  create(:clusters_applications_prometheus) }
+    let(:cluster) { create(:cluster) }
+    let(:app) {  create(:clusters_applications_prometheus, cluster: cluster) }
     let(:command) {  app.install_command }
     let(:namespace) { Gitlab::Kubernetes::Helm::NAMESPACE }
 
     subject { described_class.new(command, namespace) }
 
-    context 'with a command' do
+    shared_examples 'helm pod' do
       it 'should generate a Kubeclient::Resource' do
         expect(subject.generate).to be_a_kind_of(Kubeclient::Resource)
       end
@@ -40,6 +41,10 @@ describe Gitlab::Kubernetes::Helm::Pod do
         spec = subject.generate.spec
         expect(spec.restartPolicy).to eq('Never')
       end
+    end
+
+    context 'with a install command' do
+      it_behaves_like 'helm pod'
 
       it 'should include volumes for the container' do
         container = subject.generate.spec.containers.first
@@ -55,8 +60,24 @@ describe Gitlab::Kubernetes::Helm::Pod do
       it 'should mount configMap specification in the volume' do
         volume = subject.generate.spec.volumes.first
         expect(volume.configMap['name']).to eq("values-content-configuration-#{app.name}")
-        expect(volume.configMap['items'].first['key']).to eq(:'values.yaml')
-        expect(volume.configMap['items'].first['path']).to eq(:'values.yaml')
+        expect(volume.configMap['items'].first['key']).to eq('values')
+        expect(volume.configMap['items'].first['path']).to eq('values.yaml')
+      end
+    end
+
+    context 'with a init command' do
+      let(:app) { create(:clusters_applications_helm, cluster: cluster) }
+
+      it_behaves_like 'helm pod'
+
+      it 'should not include volumeMounts inside the container' do
+        container = subject.generate.spec.containers.first
+        expect(container.volumeMounts).to be_nil
+      end
+
+      it 'should not a volume inside the specification' do
+        spec = subject.generate.spec
+        expect(spec.volumes).to be_nil
       end
     end
   end
diff --git a/spec/models/clusters/applications/helm_spec.rb b/spec/models/clusters/applications/helm_spec.rb
index e5b2bdc8a4e..0eb1e3876e2 100644
--- a/spec/models/clusters/applications/helm_spec.rb
+++ b/spec/models/clusters/applications/helm_spec.rb
@@ -6,24 +6,13 @@ describe Clusters::Applications::Helm do
   describe '.installed' do
     subject { described_class.installed }
 
-    let!(:installed_cluster) { create(:clusters_applications_helm, :installed) }
+    let!(:cluster) { create(:clusters_applications_helm, :installed) }
 
     before do
       create(:clusters_applications_helm, :errored)
     end
 
-    it { is_expected.to contain_exactly(installed_cluster) }
-  end
-
-  describe '#issue_client_cert' do
-    let(:application) { create(:clusters_applications_helm) }
-    subject { application.issue_client_cert }
-
-    it 'returns a new cert' do
-      is_expected.to be_kind_of(Gitlab::Kubernetes::Helm::Certificate)
-      expect(subject.cert_string).not_to eq(application.ca_cert)
-      expect(subject.key_string).not_to eq(application.ca_key)
-    end
+    it { is_expected.to contain_exactly(cluster) }
   end
 
   describe '#install_command' do
@@ -36,16 +25,5 @@ describe Clusters::Applications::Helm do
     it 'should be initialized with 1 arguments' do
       expect(subject.name).to eq('helm')
     end
-
-    it 'should have cert files' do
-      expect(subject.files[:'ca.pem']).to be_present
-      expect(subject.files[:'ca.pem']).to eq(helm.ca_cert)
-
-      expect(subject.files[:'cert.pem']).to be_present
-      expect(subject.files[:'key.pem']).to be_present
-
-      cert = OpenSSL::X509::Certificate.new(subject.files[:'cert.pem'])
-      expect(cert.not_after).to be > 999.years.from_now
-    end
   end
 end
diff --git a/spec/models/clusters/applications/ingress_spec.rb b/spec/models/clusters/applications/ingress_spec.rb
index c76aae432f9..bb5b2ef3a47 100644
--- a/spec/models/clusters/applications/ingress_spec.rb
+++ b/spec/models/clusters/applications/ingress_spec.rb
@@ -74,43 +74,18 @@ describe Clusters::Applications::Ingress do
       expect(subject.name).to eq('ingress')
       expect(subject.chart).to eq('stable/nginx-ingress')
       expect(subject.version).to be_nil
-      expect(subject.files).to eq(ingress.files)
+      expect(subject.values).to eq(ingress.values)
     end
   end
 
-  describe '#files' do
-    let(:application) { ingress }
-    subject { application.files }
-    let(:values) { subject[:'values.yaml'] }
+  describe '#values' do
+    subject { ingress.values }
 
-    it 'should include ingress valid keys in values' do
-      expect(values).to include('image')
-      expect(values).to include('repository')
-      expect(values).to include('stats')
-      expect(values).to include('podAnnotations')
-    end
-
-    context 'when the helm application does not have a ca_cert' do
-      before do
-        application.cluster.application_helm.ca_cert = nil
-      end
-
-      it 'should not include cert files' do
-        expect(subject[:'ca.pem']).not_to be_present
-        expect(subject[:'cert.pem']).not_to be_present
-        expect(subject[:'key.pem']).not_to be_present
-      end
-    end
-
-    it 'should include cert files' do
-      expect(subject[:'ca.pem']).to be_present
-      expect(subject[:'ca.pem']).to eq(application.cluster.application_helm.ca_cert)
-
-      expect(subject[:'cert.pem']).to be_present
-      expect(subject[:'key.pem']).to be_present
-
-      cert = OpenSSL::X509::Certificate.new(subject[:'cert.pem'])
-      expect(cert.not_after).to be < 60.minutes.from_now
+    it 'should include ingress valid keys' do
+      is_expected.to include('image')
+      is_expected.to include('repository')
+      is_expected.to include('stats')
+      is_expected.to include('podAnnotations')
     end
   end
 end
diff --git a/spec/models/clusters/applications/jupyter_spec.rb b/spec/models/clusters/applications/jupyter_spec.rb
index a8cf44ac8a8..65750141e65 100644
--- a/spec/models/clusters/applications/jupyter_spec.rb
+++ b/spec/models/clusters/applications/jupyter_spec.rb
@@ -38,46 +38,23 @@ describe Clusters::Applications::Jupyter do
       expect(subject.chart).to eq('jupyter/jupyterhub')
       expect(subject.version).to be_nil
       expect(subject.repository).to eq('https://jupyterhub.github.io/helm-chart/')
-      expect(subject.files).to eq(jupyter.files)
+      expect(subject.values).to eq(jupyter.values)
     end
   end
 
-  describe '#files' do
-    let(:application) { create(:clusters_applications_jupyter) }
-    subject { application.files }
-    let(:values) { subject[:'values.yaml'] }
+  describe '#values' do
+    let(:jupyter) { create(:clusters_applications_jupyter) }
 
-    it 'should include cert files' do
-      expect(subject[:'ca.pem']).to be_present
-      expect(subject[:'ca.pem']).to eq(application.cluster.application_helm.ca_cert)
-
-      expect(subject[:'cert.pem']).to be_present
-      expect(subject[:'key.pem']).to be_present
-
-      cert = OpenSSL::X509::Certificate.new(subject[:'cert.pem'])
-      expect(cert.not_after).to be < 60.minutes.from_now
-    end
-
-    context 'when the helm application does not have a ca_cert' do
-      before do
-        application.cluster.application_helm.ca_cert = nil
-      end
-
-      it 'should not include cert files' do
-        expect(subject[:'ca.pem']).not_to be_present
-        expect(subject[:'cert.pem']).not_to be_present
-        expect(subject[:'key.pem']).not_to be_present
-      end
-    end
+    subject { jupyter.values }
 
     it 'should include valid values' do
-      expect(values).to include('ingress')
-      expect(values).to include('hub')
-      expect(values).to include('rbac')
-      expect(values).to include('proxy')
-      expect(values).to include('auth')
-      expect(values).to match(/clientId: '?#{application.oauth_application.uid}/)
-      expect(values).to match(/callbackUrl: '?#{application.callback_url}/)
+      is_expected.to include('ingress')
+      is_expected.to include('hub')
+      is_expected.to include('rbac')
+      is_expected.to include('proxy')
+      is_expected.to include('auth')
+      is_expected.to include("clientId: #{jupyter.oauth_application.uid}")
+      is_expected.to include("callbackUrl: #{jupyter.callback_url}")
     end
   end
 end
diff --git a/spec/models/clusters/applications/prometheus_spec.rb b/spec/models/clusters/applications/prometheus_spec.rb
index 313bd741f88..e4b61552033 100644
--- a/spec/models/clusters/applications/prometheus_spec.rb
+++ b/spec/models/clusters/applications/prometheus_spec.rb
@@ -153,44 +153,21 @@ describe Clusters::Applications::Prometheus do
       expect(command.name).to eq('prometheus')
       expect(command.chart).to eq('stable/prometheus')
       expect(command.version).to eq('6.7.3')
-      expect(command.files).to eq(prometheus.files)
+      expect(command.values).to eq(prometheus.values)
     end
   end
 
-  describe '#files' do
-    let(:application) { create(:clusters_applications_prometheus) }
-    subject { application.files }
-    let(:values) { subject[:'values.yaml'] }
-
-    it 'should include cert files' do
-      expect(subject[:'ca.pem']).to be_present
-      expect(subject[:'ca.pem']).to eq(application.cluster.application_helm.ca_cert)
-
-      expect(subject[:'cert.pem']).to be_present
-      expect(subject[:'key.pem']).to be_present
-
-      cert = OpenSSL::X509::Certificate.new(subject[:'cert.pem'])
-      expect(cert.not_after).to be < 60.minutes.from_now
-    end
-
-    context 'when the helm application does not have a ca_cert' do
-      before do
-        application.cluster.application_helm.ca_cert = nil
-      end
+  describe '#values' do
+    let(:prometheus) { create(:clusters_applications_prometheus) }
 
-      it 'should not include cert files' do
-        expect(subject[:'ca.pem']).not_to be_present
-        expect(subject[:'cert.pem']).not_to be_present
-        expect(subject[:'key.pem']).not_to be_present
-      end
-    end
+    subject { prometheus.values }
 
     it 'should include prometheus valid values' do
-      expect(values).to include('alertmanager')
-      expect(values).to include('kubeStateMetrics')
-      expect(values).to include('nodeExporter')
-      expect(values).to include('pushgateway')
-      expect(values).to include('serverFiles')
+      is_expected.to include('alertmanager')
+      is_expected.to include('kubeStateMetrics')
+      is_expected.to include('nodeExporter')
+      is_expected.to include('pushgateway')
+      is_expected.to include('serverFiles')
     end
   end
 end
diff --git a/spec/models/clusters/applications/runner_spec.rb b/spec/models/clusters/applications/runner_spec.rb
index 65aaa1ee882..b12500d0acd 100644
--- a/spec/models/clusters/applications/runner_spec.rb
+++ b/spec/models/clusters/applications/runner_spec.rb
@@ -33,55 +33,31 @@ describe Clusters::Applications::Runner do
       expect(subject.chart).to eq('runner/gitlab-runner')
       expect(subject.version).to be_nil
       expect(subject.repository).to eq('https://charts.gitlab.io')
-      expect(subject.files).to eq(gitlab_runner.files)
+      expect(subject.values).to eq(gitlab_runner.values)
     end
   end
 
-  describe '#files' do
-    let(:application) { create(:clusters_applications_runner, runner: ci_runner) }
-
-    subject { application.files }
-    let(:values) { subject[:'values.yaml'] }
-
-    it 'should include cert files' do
-      expect(subject[:'ca.pem']).to be_present
-      expect(subject[:'ca.pem']).to eq(application.cluster.application_helm.ca_cert)
-
-      expect(subject[:'cert.pem']).to be_present
-      expect(subject[:'key.pem']).to be_present
-
-      cert = OpenSSL::X509::Certificate.new(subject[:'cert.pem'])
-      expect(cert.not_after).to be < 60.minutes.from_now
-    end
-
-    context 'when the helm application does not have a ca_cert' do
-      before do
-        application.cluster.application_helm.ca_cert = nil
-      end
+  describe '#values' do
+    let(:gitlab_runner) { create(:clusters_applications_runner, runner: ci_runner) }
 
-      it 'should not include cert files' do
-        expect(subject[:'ca.pem']).not_to be_present
-        expect(subject[:'cert.pem']).not_to be_present
-        expect(subject[:'key.pem']).not_to be_present
-      end
-    end
+    subject { gitlab_runner.values }
 
     it 'should include runner valid values' do
-      expect(values).to include('concurrent')
-      expect(values).to include('checkInterval')
-      expect(values).to include('rbac')
-      expect(values).to include('runners')
-      expect(values).to include('privileged: true')
-      expect(values).to include('image: ubuntu:16.04')
-      expect(values).to include('resources')
-      expect(values).to match(/runnerToken: '?#{ci_runner.token}/)
-      expect(values).to match(/gitlabUrl: '?#{Gitlab::Routing.url_helpers.root_url}/)
+      is_expected.to include('concurrent')
+      is_expected.to include('checkInterval')
+      is_expected.to include('rbac')
+      is_expected.to include('runners')
+      is_expected.to include('privileged: true')
+      is_expected.to include('image: ubuntu:16.04')
+      is_expected.to include('resources')
+      is_expected.to include("runnerToken: #{ci_runner.token}")
+      is_expected.to include("gitlabUrl: #{Gitlab::Routing.url_helpers.root_url}")
     end
 
     context 'without a runner' do
       let(:project) { create(:project) }
-      let(:cluster) { create(:cluster, :with_installed_helm, projects: [project]) }
-      let(:application) { create(:clusters_applications_runner, cluster: cluster) }
+      let(:cluster) { create(:cluster, projects: [project]) }
+      let(:gitlab_runner) { create(:clusters_applications_runner, cluster: cluster) }
 
       it 'creates a runner' do
         expect do
@@ -90,18 +66,18 @@ describe Clusters::Applications::Runner do
       end
 
       it 'uses the new runner token' do
-        expect(values).to match(/runnerToken: '?#{application.reload.runner.token}/)
+        expect(subject).to include("runnerToken: #{gitlab_runner.reload.runner.token}")
       end
 
       it 'assigns the new runner to runner' do
         subject
 
-        expect(application.reload.runner).to be_project_type
+        expect(gitlab_runner.reload.runner).to be_project_type
       end
     end
 
     context 'with duplicated values on vendor/runner/values.yaml' do
-      let(:stub_values) do
+      let(:values) do
         {
           "concurrent" => 4,
           "checkInterval" => 3,
@@ -120,11 +96,11 @@ describe Clusters::Applications::Runner do
       end
 
       before do
-        allow(application).to receive(:chart_values).and_return(stub_values)
+        allow(gitlab_runner).to receive(:chart_values).and_return(values)
       end
 
       it 'should overwrite values.yaml' do
-        expect(values).to match(/privileged: '?#{application.privileged}/)
+        is_expected.to include("privileged: #{gitlab_runner.privileged}")
       end
     end
   end
diff --git a/spec/services/clusters/applications/install_service_spec.rb b/spec/services/clusters/applications/install_service_spec.rb
index a744ec30b65..93199964a0e 100644
--- a/spec/services/clusters/applications/install_service_spec.rb
+++ b/spec/services/clusters/applications/install_service_spec.rb
@@ -47,7 +47,7 @@ describe Clusters::Applications::InstallService do
     end
 
     context 'when application cannot be persisted' do
-      let(:application) { create(:clusters_applications_helm, :scheduled) }
+      let(:application) { build(:clusters_applications_helm, :scheduled) }
 
       it 'make the application errored' do
         expect(application).to receive(:make_installing!).once.and_raise(ActiveRecord::RecordInvalid)