1 files changed, 0 insertions, 87 deletions
diff --git a/app/services/clusters/applications/prometheus_health_check_service.rb b/app/services/clusters/applications/prometheus_health_check_service.rb
deleted file mode 100644
index eda47f56e72..00000000000
--- a/app/services/clusters/applications/prometheus_health_check_service.rb
+++ /dev/null
@@ -1,87 +0,0 @@
-# frozen_string_literal: true
-
-module Clusters
-  module Applications
-    class PrometheusHealthCheckService
-      include Gitlab::Utils::StrongMemoize
-      include Gitlab::Routing
-
-      def initialize(cluster)
-        @cluster = cluster
-        @logger = Gitlab::AppJsonLogger.build
-      end
-
-      def execute
-        raise 'Invalid cluster type. Only project types are allowed.' unless @cluster.project_type?
-
-        return unless prometheus_application.installed?
-
-        project = @cluster.clusterable
-
-        @logger.info(
-          message: 'Prometheus health check',
-          cluster_id: @cluster.id,
-          newly_unhealthy: became_unhealthy?,
-          currently_healthy: currently_healthy?,
-          was_healthy: was_healthy?
-        )
-
-        send_notification(project) if became_unhealthy?
-
-        prometheus_application.update_columns(healthy: currently_healthy?) if health_changed?
-      end
-
-      private
-
-      def prometheus_application
-        strong_memoize(:prometheus_application) do
-          @cluster.application_prometheus
-        end
-      end
-
-      def currently_healthy?
-        strong_memoize(:currently_healthy) do
-          prometheus_application.prometheus_client.healthy?
-        end
-      end
-
-      def became_unhealthy?
-        strong_memoize(:became_unhealthy) do
-          (was_healthy? || was_healthy?.nil?) && !currently_healthy?
-        end
-      end
-
-      def was_healthy?
-        strong_memoize(:was_healthy) do
-          prometheus_application.healthy
-        end
-      end
-
-      def health_changed?
-        was_healthy? != currently_healthy?
-      end
-
-      def send_notification(project)
-        notification_payload = build_notification_payload(project)
-        integration = project.alert_management_http_integrations.active.first
-
-        Projects::Alerting::NotifyService.new(project, notification_payload).execute(integration&.token, integration)
-
-        @logger.info(message: 'Successfully notified of Prometheus newly unhealthy', cluster_id: @cluster.id, project_id: project.id)
-      end
-
-      def build_notification_payload(project)
-        cluster_path = namespace_project_cluster_path(
-          project_id: project.path,
-          namespace_id: project.namespace.path,
-          id: @cluster.id
-        )
-
-        {
-          title: "Prometheus is Unhealthy. Cluster Name: #{@cluster.name}",
-          description: "Prometheus is unhealthy for the cluster: [#{@cluster.name}](#{cluster_path}) attached to project #{project.name}."
-        }
-      end
-    end
-  end
-end