Merge branch 'zj-feature-flipper-disable-banner' into 'master'

Allow all AutoDevOps banners to be disabled

Closes #37653

See merge request !14218

app/helpers/auto_devops_helper.rb

 module AutoDevopsHelper
   def show_auto_devops_callout?(project)
+    Feature.get(:auto_devops_banner_disabled).off? &&
       show_callout?('auto_devops_settings_dismissed') &&
       can?(current_user, :admin_pipeline, project) &&
       project.has_auto_devops_implicitly_disabled?

changelogs/unreleased/zj-feature-flipper-disable-banner.yml

+---
+title: Allow all AutoDevOps banners to be turned off
+merge_request:
+author:
+type: changed

doc/topics/autodevops/index.md

@@ -323,6 +323,23 @@ container registry. **Restarting a pod, scaling a service, or other actions whic
 require on-going access to the registry will fail**. On-going secure access is
 planned for a subsequent release.
 
+## Disable the banner instance wide
+
+If an administrater would like to disable the banners on an instance level, this
+feature can be disabled either through the console:
+
+```basb
+$ gitlab-rails console
+[1] pry(main)> Feature.get(:auto_devops_banner_disabled).disable
+=> true
+```
+
+Or through the HTTP API with the admin access token:
+
+```
+curl --data "value=true" --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/features/auto_devops_banner_disabled
+```
+
 ## Troubleshooting
 
 - Auto Build and Auto Test may fail in detecting your language/framework. There

spec/helpers/auto_devops_helper_spec.rb

@@ -10,6 +10,8 @@ describe AutoDevopsHelper do
     before do
       allow(helper).to receive(:can?).with(user, :admin_pipeline, project) { allowed }
       allow(helper).to receive(:current_user) { user }
+
+      Feature.get(:auto_devops_banner_disabled).disable
     end
 
     subject { helper.show_auto_devops_callout?(project) }
@@ -18,6 +20,14 @@ describe AutoDevopsHelper do
       it { is_expected.to eq(true) }
     end
 
+    context 'when the banner is disabled by feature flag' do
+      it 'allows the feature flag to disable' do
+        Feature.get(:auto_devops_banner_disabled).enable
+
+        expect(subject).to be(false)
+      end
+    end
+
     context 'when dismissed' do
       before do
         helper.request.cookies[:auto_devops_settings_dismissed] = 'true'