Add modsecurity_enabled toggle to Ingress managed app

This replaces the previous behavior hid behind the `ingress_modsecurity`
feature flag, instead requiring "opt-in" to enable modsecurity during
ingress installation

See https://gitlab.com/gitlab-org/gitlab/issues/39140 for details

app/assets/javascripts/clusters/clusters_bundle.js

@@ -53,6 +53,7 @@ export default class Clusters {
       helpPath,
       ingressHelpPath,
       ingressDnsHelpPath,
+      ingressModSecurityHelpPath,
       environmentsHelpPath,
       clustersHelpPath,
       deployBoardsHelpPath,
@@ -69,6 +70,7 @@ export default class Clusters {
       helpPath,
       ingressHelpPath,
       ingressDnsHelpPath,
+      ingressModSecurityHelpPath,
       environmentsHelpPath,
       clustersHelpPath,
       deployBoardsHelpPath,
@@ -169,6 +171,7 @@ export default class Clusters {
             ingressHelpPath: this.state.ingressHelpPath,
             managePrometheusPath: this.state.managePrometheusPath,
             ingressDnsHelpPath: this.state.ingressDnsHelpPath,
+            ingressModSecurityHelpPath: this.state.ingressModSecurityHelpPath,
             cloudRunHelpPath: this.state.cloudRunHelpPath,
             providerType: this.state.providerType,
             preInstalledKnative: this.state.preInstalledKnative,

app/assets/javascripts/clusters/components/applications.vue

@@ -56,6 +56,11 @@ export default {
       required: false,
       default: '',
     },
+    ingressModSecurityHelpPath: {
+      type: String,
+      required: false,
+      default: '',
+    },
     cloudRunHelpPath: {
       type: String,
       required: false,
@@ -112,6 +117,9 @@ export default {
     ingressInstalled() {
       return this.applications.ingress.status === APPLICATION_STATUS.INSTALLED;
     },
+    ingressEnableModsecurity() {
+      return this.applications.ingress.modsecurity_enabled;
+    },
     ingressExternalEndpoint() {
       return this.applications.ingress.externalIp || this.applications.ingress.externalHostname;
     },
@@ -127,6 +135,18 @@ export default {
     enableClusterApplicationElasticStack() {
       return gon.features && gon.features.enableClusterApplicationElasticStack;
     },
+    ingressModSecurityDescription() {
+      const escapedUrl = _.escape(this.ingressModSecurityHelpPath);
+
+      return sprintf(
+        s__('ClusterIntegration|Learn more about %{startLink}ModSecurity%{endLink}'),
+        {
+          startLink: `<a href="${escapedUrl}" target="_blank" rel="noopener noreferrer">`,
+          endLink: '</a>',
+        },
+        false,
+      );
+    },
     ingressDescription() {
       return sprintf(
         _.escape(
@@ -135,9 +155,9 @@ export default {
           ),
         ),
         {
-          pricingLink: `<strong><a href="https://cloud.google.com/compute/pricing#lb"
+          pricingLink: `<a href="https://cloud.google.com/compute/pricing#lb"
               target="_blank" rel="noopener noreferrer">
-              ${_.escape(s__('ClusterIntegration|pricing'))}</a></strong>`,
+              ${_.escape(s__('ClusterIntegration|pricing'))}</a>`,
         },
         false,
       );
@@ -311,6 +331,9 @@ Crossplane runs inside your Kubernetes cluster and supports secure connectivity
         :request-reason="applications.ingress.requestReason"
         :installed="applications.ingress.installed"
         :install-failed="applications.ingress.installFailed"
+        :install-application-request-params="{
+          modsecurity_enabled: applications.ingress.modsecurity_enabled,
+        }"
         :uninstallable="applications.ingress.uninstallable"
         :uninstall-successful="applications.ingress.uninstallSuccessful"
         :uninstall-failed="applications.ingress.uninstallFailed"
@@ -326,6 +349,26 @@ Crossplane runs inside your Kubernetes cluster and supports secure connectivity
             }}
           </p>
 
+          <template>
+            <div class="form-group">
+              <div class="form-check form-check-inline">
+                <input
+                  v-model="applications.ingress.modsecurity_enabled"
+                  :disabled="ingressInstalled"
+                  type="checkbox"
+                  autocomplete="off"
+                  class="form-check-input"
+                />
+                <label class="form-check-label label-bold" for="ingress-enable-modsecurity">
+                  {{ s__('ClusterIntegration|Enable Web Application Firewall') }}
+                </label>
+              </div>
+              <p class="form-text text-muted">
+                <strong v-html="ingressModSecurityDescription"></strong>
+              </p>
+            </div>
+          </template>
+
           <template v-if="ingressInstalled">
             <div class="form-group">
               <label for="ingress-endpoint">{{ s__('ClusterIntegration|Ingress Endpoint') }}</label>
@@ -375,7 +418,9 @@ Crossplane runs inside your Kubernetes cluster and supports secure connectivity
             </p>
           </template>
           <template v-if="!ingressInstalled">
-            <div class="bs-callout bs-callout-info" v-html="ingressDescription"></div>
+            <div class="bs-callout bs-callout-info">
+              <strong v-html="ingressDescription"></strong>
+            </div>
           </template>
         </div>
       </application-row>

app/assets/javascripts/clusters/stores/clusters_store.js

@@ -52,6 +52,7 @@ export default class ClusterStore {
         ingress: {
           ...applicationInitialState,
           title: s__('ClusterIntegration|Ingress'),
+          modsecurity_enabled: false,
           externalIp: null,
           externalHostname: null,
         },
@@ -108,6 +109,7 @@ export default class ClusterStore {
     helpPath,
     ingressHelpPath,
     ingressDnsHelpPath,
+    ingressModSecurityHelpPath,
     environmentsHelpPath,
     clustersHelpPath,
     deployBoardsHelpPath,
@@ -116,6 +118,7 @@ export default class ClusterStore {
     this.state.helpPath = helpPath;
     this.state.ingressHelpPath = ingressHelpPath;
     this.state.ingressDnsHelpPath = ingressDnsHelpPath;
+    this.state.ingressModSecurityHelpPath = ingressModSecurityHelpPath;
     this.state.environmentsHelpPath = environmentsHelpPath;
     this.state.clustersHelpPath = clustersHelpPath;
     this.state.deployBoardsHelpPath = deployBoardsHelpPath;
@@ -207,6 +210,8 @@ export default class ClusterStore {
       if (appId === INGRESS) {
         this.state.applications.ingress.externalIp = serverAppEntry.external_ip;
         this.state.applications.ingress.externalHostname = serverAppEntry.external_hostname;
+        this.state.applications.ingress.modsecurity_enabled =
+          serverAppEntry.modsecurity_enabled || this.state.applications.ingress.modsecurity_enabled;
       } else if (appId === CERT_MANAGER) {
         this.state.applications.cert_manager.email =
           this.state.applications.cert_manager.email || serverAppEntry.email;

app/controllers/clusters/applications_controller.rb

@@ -47,7 +47,7 @@ class Clusters::ApplicationsController < Clusters::BaseController
   end
 
   def cluster_application_params
-    params.permit(:application, :hostname, :kibana_hostname, :email, :stack)
+    params.permit(:application, :hostname, :kibana_hostname, :email, :stack, :modsecurity_enabled)
   end
 
   def cluster_application_destroy_params

app/models/clusters/applications/ingress.rb

@@ -14,6 +14,7 @@ module Clusters
       include AfterCommitQueue
 
       default_value_for :ingress_type, :nginx
+      default_value_for :modsecurity_enabled, false
       default_value_for :version, VERSION
 
       enum ingress_type: {
@@ -73,7 +74,7 @@ module Clusters
       private
 
       def specification
-        return {} unless Feature.enabled?(:ingress_modsecurity)
+        return {} unless modsecurity_enabled
 
         {
           "controller" => {

app/serializers/cluster_application_entity.rb

@@ -11,6 +11,7 @@ class ClusterApplicationEntity < Grape::Entity
   expose :kibana_hostname, if: -> (e, _) { e.respond_to?(:kibana_hostname) }
   expose :email, if: -> (e, _) { e.respond_to?(:email) }
   expose :stack, if: -> (e, _) { e.respond_to?(:stack) }
+  expose :modsecurity_enabled, if: -> (e, _) { e.respond_to?(:modsecurity_enabled) }
   expose :update_available?, as: :update_available, if: -> (e, _) { e.respond_to?(:update_available?) }
   expose :can_uninstall?, as: :can_uninstall
 end

app/services/clusters/applications/base_service.rb

@@ -31,6 +31,10 @@ module Clusters
             application.stack = params[:stack]
           end
 
+          if application.has_attribute?(:modsecurity_enabled)
+            application.modsecurity_enabled = params[:modsecurity_enabled] || false
+          end
+
           if application.respond_to?(:oauth_application)
             application.oauth_application = create_oauth_application(application, request)
           end

app/views/clusters/clusters/show.html.haml

@@ -30,6 +30,7 @@
   help_path: help_page_path('user/project/clusters/index.md', anchor: 'installing-applications'),
   ingress_help_path: help_page_path('user/project/clusters/index.md', anchor: 'getting-the-external-endpoint'),
   ingress_dns_help_path: help_page_path('user/project/clusters/index.md', anchor: 'manually-determining-the-external-endpoint'),
+  ingress_mod_security_help_path: help_page_path('user/clusters/applications.md', anchor: 'web-application-firewall-modsecurity'),
   environments_help_path: help_page_path('ci/environments', anchor: 'defining-environments'),
   clusters_help_path: help_page_path('user/project/clusters/index.md', anchor: 'deploying-to-a-kubernetes-cluster'),
   deploy_boards_help_path: help_page_path('user/project/deploy_boards.html', anchor: 'enabling-deploy-boards'),

changelogs/unreleased/39140-toggle-modsecurity-enabled-for-managed-ingress.yml

+---
+title: Add enable_modsecurity setting to managed ingress
+merge_request: 21966
+author:
+type: added

doc/user/clusters/applications.md

@@ -248,10 +248,10 @@ use an A record. If your external endpoint is a hostname, use a CNAME record.
 
 #### Web Application Firewall (ModSecurity)
 
-> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/65192) in GitLab 12.3 (enabled using `ingress_modsecurity` [feature flag](../../development/feature_flags/development.md#enabling-a-feature-flag-in-development)).
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/merge_requests/21966) in GitLab 12.7.
 
 Out of the box, GitLab provides you real-time security monitoring with
-[`modsecurity`](https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/#modsecurity)
+[ModSecurity](https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/#modsecurity).
 
 Modsecurity is a toolkit for real-time web application monitoring, logging,
 and access control. With GitLab's offering, the [OWASP's Core Rule Set](https://www.modsecurity.org/CRS/Documentation/), which provides generic attack detection capabilities,
@@ -267,22 +267,18 @@ This feature:
   kubectl -n gitlab-managed-apps exec -it $(kubectl get pods -n gitlab-managed-apps | grep 'ingress-controller' | awk '{print $1}') -- tail -f /var/log/modsec/audit.log
   ```
 
-There is a small performance overhead by enabling `modsecurity`. If this is
-considered significant for your application, you can either:
+To enable ModSecurity, check the **Enable Web Application Firewall** checkbox
+when installing your [Ingress application](#ingress).
 
-- Disable ModSecurity's rule engine for your deployed application by setting
-  [the deployment variable](../../topics/autodevops/index.md)
-  `AUTO_DEVOPS_MODSECURITY_SEC_RULE_ENGINE` to `Off`. This will prevent ModSecurity from
-  processing any requests for the given application or environment.
-- Toggle the feature flag to false by running the following command within your
-  instance's Rails console:
+There is a small performance overhead by enabling ModSecurity. If this is
+considered significant for your application, you can disable ModSecurity's
+rule engine for your deployed application by setting
+[the deployment variable](../../topics/autodevops/index.md)
+`AUTO_DEVOPS_MODSECURITY_SEC_RULE_ENGINE` to `Off`. This will prevent ModSecurity
+from processing any requests for the given application or environment.
 
-  ```ruby
-  Feature.disable(:ingress_modsecurity)
-  ```
-
-Once disabled, you must [uninstall](#uninstalling-applications) and reinstall your Ingress
-application for the changes to take effect.
+To permanently disable it, you must [uninstall](#uninstalling-applications) and
+reinstall your Ingress application for the changes to take effect.
 
 ### JupyterHub
 

locale/gitlab.pot

@@ -3851,6 +3851,9 @@ msgstr ""
 msgid "ClusterIntegration|Enable Cloud Run on GKE (beta)"
 msgstr ""
 
+msgid "ClusterIntegration|Enable Web Application Firewall"
+msgstr ""
+
 msgid "ClusterIntegration|Enable or disable GitLab's connection to your Kubernetes cluster."
 msgstr ""
 
@@ -4037,6 +4040,9 @@ msgstr ""
 msgid "ClusterIntegration|Learn more about %{help_link_start}zones%{help_link_end}."
 msgstr ""
 
+msgid "ClusterIntegration|Learn more about %{startLink}ModSecurity%{endLink}"
+msgstr ""
+
 msgid "ClusterIntegration|Learn more about %{startLink}Regions %{externalLinkIcon}%{endLink}."
 msgstr ""
 

spec/factories/clusters/applications/helm.rb

@@ -71,6 +71,7 @@ FactoryBot.define do
     end
 
     factory :clusters_applications_ingress, class: Clusters::Applications::Ingress do
+      modsecurity_enabled { false }
       cluster factory: %i(cluster with_installed_helm provided_by_gcp)
     end
 

spec/fixtures/api/schemas/cluster_status.json

@@ -38,6 +38,7 @@
         "kibana_hostname": { "type": ["string", "null"] },
         "email": { "type": ["string", "null"] },
         "stack": { "type": ["string", "null"] },
+        "modsecurity_enabled": { "type": ["boolean", "null"] },
         "update_available": { "type": ["boolean", "null"] },
         "can_uninstall": { "type": "boolean" }
       },

spec/frontend/clusters/components/applications_spec.js

@@ -190,6 +190,7 @@ describe('Applications', () => {
                 title: 'Ingress',
                 status: 'installed',
                 externalHostname: 'localhost.localdomain',
+                modsecurity_enabled: false,
               },
               helm: { title: 'Helm Tiller' },
               cert_manager: { title: 'Cert-Manager' },
@@ -473,7 +474,12 @@ describe('Applications', () => {
         vm = mountComponent(Applications, {
           applications: {
             ...APPLICATIONS_MOCK_STATE,
-            ingress: { title: 'Ingress', status: 'installed', externalIp: '1.1.1.1' },
+            ingress: {
+              title: 'Ingress',
+              status: 'installed',
+              externalIp: '1.1.1.1',
+              modsecurity_enabled: false,
+            },
             elastic_stack: { title: 'Elastic Stack', status: 'installed', kibana_hostname: '' },
           },
         });

spec/frontend/clusters/services/mock_data.js

@@ -150,7 +150,7 @@ const DEFAULT_APPLICATION_STATE = {
 
 const APPLICATIONS_MOCK_STATE = {
   helm: { title: 'Helm Tiller', status: 'installable' },
-  ingress: { title: 'Ingress', status: 'installable' },
+  ingress: { title: 'Ingress', status: 'installable', modsecurity_enabled: false },
   crossplane: { title: 'Crossplane', status: 'installable', stack: '' },
   cert_manager: { title: 'Cert-Manager', status: 'installable' },
   runner: { title: 'GitLab Runner' },

spec/frontend/clusters/stores/clusters_store_spec.js

@@ -86,6 +86,7 @@ describe('Clusters Store', () => {
             uninstallSuccessful: false,
             uninstallFailed: false,
             validationError: null,
+            modsecurity_enabled: false,
           },
           runner: {
             title: 'GitLab Runner',

spec/models/clusters/applications/ingress_spec.rb

@@ -142,11 +142,11 @@ describe Clusters::Applications::Ingress do
     let(:project) { build(:project) }
     let(:cluster) { build(:cluster, projects: [project]) }
 
-    context 'when ingress_modsecurity is enabled' do
+    context 'when modsecurity_enabled is enabled' do
       before do
-        stub_feature_flags(ingress_modsecurity: true)
-
         allow(subject).to receive(:cluster).and_return(cluster)
+
+        allow(subject).to receive(:modsecurity_enabled).and_return(true)
       end
 
       it 'includes modsecurity module enablement' do
@@ -173,10 +173,8 @@ describe Clusters::Applications::Ingress do
       end
     end
 
-    context 'when ingress_modsecurity is disabled' do
+    context 'when modsecurity_enabled is disabled' do
       before do
-        stub_feature_flags(ingress_modsecurity: false)
-
         allow(subject).to receive(:cluster).and_return(cluster)
       end
 

spec/services/clusters/applications/create_service_spec.rb

@@ -47,6 +47,33 @@ describe Clusters::Applications::CreateService do
         create(:clusters_applications_helm, :installed, cluster: cluster)
       end
 
+      context 'ingress application' do
+        let(:params) do
+          {
+            application: 'ingress',
+            modsecurity_enabled: true
+          }
+        end
+
+        before do
+          expect_any_instance_of(Clusters::Applications::Ingress)
+            .to receive(:make_scheduled!)
+            .and_call_original
+        end
+
+        it 'creates the application' do
+          expect do
+            subject
+
+            cluster.reload
+          end.to change(cluster, :application_ingress)
+        end
+
+        it 'sets modsecurity_enabled' do
+          expect(subject.modsecurity_enabled).to eq(true)
+        end
+      end
+
       context 'cert manager application' do
         let(:params) do
           {