Add a link to docs in project description

Add to the service and migration both.

2 files changed, 89 insertions, 0 deletions

diff --git a/db/post_migrate/20190801072937_add_gitlab_instance_administration_project.rb b/db/post_migrate/20190801072937_add_gitlab_instance_administration_project.rb
new file mode 100644
index 00000000000..8b2cf7b3d76
--- /dev/null
+++ b/db/post_migrate/20190801072937_add_gitlab_instance_administration_project.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class AddGitlabInstanceAdministrationProject < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  def up
+    Gitlab::DatabaseImporters::SelfMonitoring::Project::CreateService.new.execute!
+  end
+
+  def down
+    ApplicationSetting.current_without_cache
+      &.instance_administration_project
+      &.owner
+      &.destroy!
+  end
+end
diff --git a/db/post_migrate/20190809072552_set_self_monitoring_project_alerting_token.rb b/db/post_migrate/20190809072552_set_self_monitoring_project_alerting_token.rb
new file mode 100644
index 00000000000..0c4faebc548
--- /dev/null
+++ b/db/post_migrate/20190809072552_set_self_monitoring_project_alerting_token.rb
@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+
+class SetSelfMonitoringProjectAlertingToken < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  module Migratable
+    module Alerting
+      class ProjectAlertingSetting < ApplicationRecord
+        self.table_name = 'project_alerting_settings'
+
+        belongs_to :project
+
+        validates :token, presence: true
+
+        attr_encrypted :token,
+          mode: :per_attribute_iv,
+          key: Settings.attr_encrypted_db_key_base_truncated,
+          algorithm: 'aes-256-gcm'
+
+        before_validation :ensure_token
+
+        private
+
+        def ensure_token
+          self.token ||= generate_token
+        end
+
+        def generate_token
+          SecureRandom.hex
+        end
+      end
+    end
+
+    class Project < ApplicationRecord
+      has_one :alerting_setting, inverse_of: :project, class_name: 'Alerting::ProjectAlertingSetting'
+    end
+
+    class ApplicationSetting < ApplicationRecord
+      self.table_name = 'application_settings'
+
+      belongs_to :instance_administration_project, class_name: 'Project'
+
+      def self.current_without_cache
+        last
+      end
+    end
+  end
+
+  def setup_alertmanager_token(project)
+    return unless License.feature_available?(:prometheus_alerts)
+
+    project.create_alerting_setting!
+  end
+
+  def up
+    Gitlab.ee do
+      project = Migratable::ApplicationSetting.current_without_cache&.instance_administration_project
+
+      if project
+        setup_alertmanager_token(project)
+      end
+    end
+  end
+
+  def down
+    Gitlab.ee do
+      Migratable::ApplicationSetting.current_without_cache
+        &.instance_administration_project
+        &.alerting_setting
+        &.destroy!
+    end
+  end
+end