1 files changed, 8 insertions, 0 deletions
diff --git a/app/models/clusters/agent.rb b/app/models/clusters/agent.rb
index cf6d95fc6df..98490a13351 100644
--- a/app/models/clusters/agent.rb
+++ b/app/models/clusters/agent.rb
@@ -4,6 +4,8 @@ module Clusters
   class Agent < ApplicationRecord
     self.table_name = 'cluster_agents'
 
+    INACTIVE_AFTER = 1.hour.freeze
+
     belongs_to :created_by_user, class_name: 'User', optional: true
     belongs_to :project, class_name: '::Project' # Otherwise, it will load ::Clusters::Project
 
@@ -16,6 +18,8 @@ module Clusters
     has_many :project_authorizations, class_name: 'Clusters::Agents::ProjectAuthorization'
     has_many :authorized_projects, class_name: '::Project', through: :project_authorizations, source: :project
 
+    has_many :activity_events, -> { in_timeline_order }, class_name: 'Clusters::Agents::ActivityEvent', inverse_of: :agent
+
     scope :ordered_by_name, -> { order(:name) }
     scope :with_name, -> (name) { where(name: name) }
 
@@ -31,5 +35,9 @@ module Clusters
     def has_access_to?(requested_project)
       requested_project == project
     end
+
+    def active?
+      agent_tokens.where("last_used_at > ?", INACTIVE_AFTER.ago).exists?
+    end
   end
 end