Extend /help/instance_configuration with package file size limits

app/models/instance_configuration.rb

@@ -14,6 +14,7 @@ def settings
         host: host,
         gitlab_pages: gitlab_pages,
         gitlab_ci: gitlab_ci,
+        package_file_size_limits: package_file_size_limits,
         rate_limits: rate_limits }.deep_symbolize_keys
     end
   end
@@ -44,6 +45,22 @@ def gitlab_ci
                                          default: 100.megabytes })
   end
+  def package_file_size_limits
+    Plan.all.to_h { |plan| [plan.name.capitalize, plan_file_size_limits(plan)] }
+  end
+
+  def plan_file_size_limits(plan)
+    {
+      conan: plan.actual_limits[:conan_max_file_size],
+      maven: plan.actual_limits[:maven_max_file_size],
+      npm: plan.actual_limits[:npm_max_file_size],
+      nuget: plan.actual_limits[:nuget_max_file_size],
+      pypi: plan.actual_limits[:pypi_max_file_size],
+      terraform_module: plan.actual_limits[:terraform_module_max_file_size],
+      generic: plan.actual_limits[:generic_packages_max_file_size]
+    }
+  end
+
   def rate_limits
     {
       unauthenticated: {

app/views/help/instance_configuration.html.haml

@@ -8,6 +8,7 @@
   = render 'help/instance_configuration/ssh_info'
   = render 'help/instance_configuration/gitlab_pages'
   = render 'help/instance_configuration/gitlab_ci'
+  = render 'help/instance_configuration/package_registry'
   = render 'help/instance_configuration/rate_limits'
   %p
     %strong= _("Table of contents")

app/views/help/instance_configuration/_package_registry.html.haml

+- package_file_size_limits = @instance_configuration.settings[:package_file_size_limits]
+- content_for :table_content do
+  - if package_file_size_limits.present?
+    %li= link_to _('Package Registry'), '#package-registry'
+
+- content_for :settings_content do
+  - if package_file_size_limits.present?
+    %h2#package-registry
+      = _('Package Registry')
+
+    %p
+      = _('There are several file size limits in place for the Package Registry.')
+    .table-responsive
+      %table
+        %thead
+          %tr
+            %th= _('Package type')
+            - package_file_size_limits.each_key do |title|
+              %th= title
+        %tbody
+          %tr
+            %td= 'Conan'
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:conan])
+          %tr
+            %td= 'Maven'
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:maven])
+          %tr
+            %td= 'npm'
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:npm])
+          %tr
+            %td= 'NuGet'
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:nuget])
+          %tr
+            %td= 'PyPI'
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:pypi])
+          %tr
+            %td= 'Terraform Module'
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:terraform_module])
+          %tr
+            %td= _('Generic')
+            - package_file_size_limits.each_value do |limits|
+              %td= instance_configuration_human_size_cell(limits[:generic])

locale/gitlab.pot

@@ -14705,6 +14705,9 @@ msgstr ""
 msgid "Generate site and private keys at"
 msgstr ""
+msgid "Generic"
+msgstr ""
+
 msgid "Generic package file size in bytes"
 msgstr ""
@@ -23652,6 +23655,9 @@ msgstr ""
 msgid "Package recipe already exists"
 msgstr ""
+msgid "Package type"
+msgstr ""
+
 msgid "Package type must be Conan"
 msgstr ""
@@ -33562,6 +33568,9 @@ msgstr ""
 msgid "There are running deployments on the environment. Please retry later."
 msgstr ""
+msgid "There are several file size limits in place for the Package Registry."
+msgstr ""
+
 msgid "There are several rate limits in place to protect the system."
 msgstr ""

spec/models/instance_configuration_spec.rb

@@ -97,6 +97,41 @@ def stub_pub_file(path)
         end
       end
+      describe '#package_file_size_limits' do
+        let_it_be(:plan1) { create(:plan, name: 'plan1', title: 'Plan 1') }
+        let_it_be(:plan2) { create(:plan, name: 'plan2', title: 'Plan 2') }
+
+        before do
+          create(:plan_limits,
+            plan: plan1,
+            conan_max_file_size: 1001,
+            maven_max_file_size: 1002,
+            npm_max_file_size: 1003,
+            nuget_max_file_size: 1004,
+            pypi_max_file_size: 1005,
+            terraform_module_max_file_size: 1006,
+            generic_packages_max_file_size: 1007
+          )
+          create(:plan_limits,
+            plan: plan2,
+            conan_max_file_size: 1101,
+            maven_max_file_size: 1102,
+            npm_max_file_size: 1103,
+            nuget_max_file_size: 1104,
+            pypi_max_file_size: 1105,
+            terraform_module_max_file_size: 1106,
+            generic_packages_max_file_size: 1107
+          )
+        end
+
+        it 'returns package file size limits' do
+          file_size_limits = subject.settings[:package_file_size_limits]
+
+          expect(file_size_limits[:Plan1]).to eq({ conan: 1001, maven: 1002, npm: 1003, nuget: 1004, pypi: 1005, terraform_module: 1006, generic: 1007 })
+          expect(file_size_limits[:Plan2]).to eq({ conan: 1101, maven: 1102, npm: 1103, nuget: 1104, pypi: 1105, terraform_module: 1106, generic: 1107 })
+        end
+      end
+
       describe '#rate_limits' do
         before do
           Gitlab::CurrentSettings.current_application_settings.update!(