feat: add pod storage metrics (#1047)

* feat: add pod storage metrics

* build: make clean build

* fix: tests

charts/feature-cluster-metrics/default-allow-lists/kube-state-metrics.yaml

@@ -3,6 +3,7 @@
 - kube_daemonset.*
 - kube_deployment_metadata_generation
 - kube_deployment_spec_replicas
+- kube_deployment_status_condition
 - kube_deployment_status_observed_generation
 - kube_deployment_status_replicas_available
 - kube_deployment_status_replicas_updated
@@ -13,7 +14,12 @@
 - kube_job.*
 - kube_namespace_status_phase
 - kube_node.*
+- kube_persistentvolume_status_phase
+- kube_persistentvolumeclaim_access_mode
+- kube_persistentvolumeclaim_info
+- kube_persistentvolumeclaim_labels
 - kube_persistentvolumeclaim_resource_requests_storage_bytes
+- kube_persistentvolumeclaim_status_phase
 - kube_pod_container_info
 - kube_pod_container_resource_limits
 - kube_pod_container_resource_requests
@@ -22,6 +28,7 @@
 - kube_pod_container_status_waiting_reason
 - kube_pod_info
 - kube_pod_owner
+- kube_pod_spec_volumes_persistentvolumeclaims_info
 - kube_pod_start_time
 - kube_pod_status_phase
 - kube_pod_status_reason

charts/feature-cluster-metrics/default-allow-lists/kubelet.yaml

@@ -1,6 +1,6 @@
 ---
 # The minimal set of metrics from the Kubelet required for Kubernetes Monitoring
-- container_cpu_usage_seconds_total
+- go_goroutines
 - kubelet_certificate_manager_client_expiration_renew_errors
 - kubelet_certificate_manager_client_ttl_seconds
 - kubelet_certificate_manager_server_ttl_seconds
@@ -25,9 +25,13 @@
 - kubelet_volume_stats_available_bytes
 - kubelet_volume_stats_capacity_bytes
 - kubelet_volume_stats_inodes
+- kubelet_volume_stats_inodes_free
 - kubelet_volume_stats_inodes_used
+- kubelet_volume_stats_used_bytes
 - kubernetes_build_info
 - namespace_workload_pod
+- process_cpu_seconds_total
+- process_resident_memory_bytes
 - rest_client_requests_total
 - storage_operation_duration_seconds_count
 - storage_operation_errors_total

charts/feature-cluster-metrics/tests/control_plane_test.yaml

@@ -28,7 +28,7 @@ tests:
             
               kubernetes.kubelet "scrape" {
                 clustering = true
-                keep_metrics = "up|container_cpu_usage_seconds_total|kubelet_certificate_manager_client_expiration_renew_errors|kubelet_certificate_manager_client_ttl_seconds|kubelet_certificate_manager_server_ttl_seconds|kubelet_cgroup_manager_duration_seconds_bucket|kubelet_cgroup_manager_duration_seconds_count|kubelet_node_config_error|kubelet_node_name|kubelet_pleg_relist_duration_seconds_bucket|kubelet_pleg_relist_duration_seconds_count|kubelet_pleg_relist_interval_seconds_bucket|kubelet_pod_start_duration_seconds_bucket|kubelet_pod_start_duration_seconds_count|kubelet_pod_worker_duration_seconds_bucket|kubelet_pod_worker_duration_seconds_count|kubelet_running_container_count|kubelet_running_containers|kubelet_running_pod_count|kubelet_running_pods|kubelet_runtime_operations_errors_total|kubelet_runtime_operations_total|kubelet_server_expiration_renew_errors|kubelet_volume_stats_available_bytes|kubelet_volume_stats_capacity_bytes|kubelet_volume_stats_inodes|kubelet_volume_stats_inodes_used|kubernetes_build_info|namespace_workload_pod|rest_client_requests_total|storage_operation_duration_seconds_count|storage_operation_errors_total|volume_manager_total_volumes"
+                keep_metrics = "up|go_goroutines|kubelet_certificate_manager_client_expiration_renew_errors|kubelet_certificate_manager_client_ttl_seconds|kubelet_certificate_manager_server_ttl_seconds|kubelet_cgroup_manager_duration_seconds_bucket|kubelet_cgroup_manager_duration_seconds_count|kubelet_node_config_error|kubelet_node_name|kubelet_pleg_relist_duration_seconds_bucket|kubelet_pleg_relist_duration_seconds_count|kubelet_pleg_relist_interval_seconds_bucket|kubelet_pod_start_duration_seconds_bucket|kubelet_pod_start_duration_seconds_count|kubelet_pod_worker_duration_seconds_bucket|kubelet_pod_worker_duration_seconds_count|kubelet_running_container_count|kubelet_running_containers|kubelet_running_pod_count|kubelet_running_pods|kubelet_runtime_operations_errors_total|kubelet_runtime_operations_total|kubelet_server_expiration_renew_errors|kubelet_volume_stats_available_bytes|kubelet_volume_stats_capacity_bytes|kubelet_volume_stats_inodes|kubelet_volume_stats_inodes_free|kubelet_volume_stats_inodes_used|kubelet_volume_stats_used_bytes|kubernetes_build_info|namespace_workload_pod|process_cpu_seconds_total|process_resident_memory_bytes|rest_client_requests_total|storage_operation_duration_seconds_count|storage_operation_errors_total|volume_manager_total_volumes"
                 scrape_interval = "60s"
                 max_cache_size = 100000
                 forward_to = argument.metrics_destinations.value
@@ -256,7 +256,7 @@ tests:
               kube_state_metrics.scrape "metrics" {
                 targets = kube_state_metrics.kubernetes.targets.output
                 clustering = true
-                keep_metrics = "up|kube_daemonset.*|kube_deployment_metadata_generation|kube_deployment_spec_replicas|kube_deployment_status_observed_generation|kube_deployment_status_replicas_available|kube_deployment_status_replicas_updated|kube_horizontalpodautoscaler_spec_max_replicas|kube_horizontalpodautoscaler_spec_min_replicas|kube_horizontalpodautoscaler_status_current_replicas|kube_horizontalpodautoscaler_status_desired_replicas|kube_job.*|kube_namespace_status_phase|kube_node.*|kube_persistentvolumeclaim_resource_requests_storage_bytes|kube_pod_container_info|kube_pod_container_resource_limits|kube_pod_container_resource_requests|kube_pod_container_status_last_terminated_reason|kube_pod_container_status_restarts_total|kube_pod_container_status_waiting_reason|kube_pod_info|kube_pod_owner|kube_pod_start_time|kube_pod_status_phase|kube_pod_status_reason|kube_replicaset.*|kube_resourcequota|kube_statefulset.*"
+                keep_metrics = "up|kube_daemonset.*|kube_deployment_metadata_generation|kube_deployment_spec_replicas|kube_deployment_status_condition|kube_deployment_status_observed_generation|kube_deployment_status_replicas_available|kube_deployment_status_replicas_updated|kube_horizontalpodautoscaler_spec_max_replicas|kube_horizontalpodautoscaler_spec_min_replicas|kube_horizontalpodautoscaler_status_current_replicas|kube_horizontalpodautoscaler_status_desired_replicas|kube_job.*|kube_namespace_status_phase|kube_node.*|kube_persistentvolume_status_phase|kube_persistentvolumeclaim_access_mode|kube_persistentvolumeclaim_info|kube_persistentvolumeclaim_labels|kube_persistentvolumeclaim_resource_requests_storage_bytes|kube_persistentvolumeclaim_status_phase|kube_pod_container_info|kube_pod_container_resource_limits|kube_pod_container_resource_requests|kube_pod_container_status_last_terminated_reason|kube_pod_container_status_restarts_total|kube_pod_container_status_waiting_reason|kube_pod_info|kube_pod_owner|kube_pod_spec_volumes_persistentvolumeclaims_info|kube_pod_start_time|kube_pod_status_phase|kube_pod_status_reason|kube_replicaset.*|kube_resourcequota|kube_statefulset.*"
                 scrape_interval = "60s"
                 max_cache_size = 100000
                 forward_to = argument.metrics_destinations.value

charts/feature-cluster-metrics/tests/custom_rules_test.yaml

@@ -44,7 +44,7 @@ tests:
           
               kubernetes.kubelet "scrape" {
                 clustering = true
-                keep_metrics = "up|container_cpu_usage_seconds_total|kubelet_certificate_manager_client_expiration_renew_errors|kubelet_certificate_manager_client_ttl_seconds|kubelet_certificate_manager_server_ttl_seconds|kubelet_cgroup_manager_duration_seconds_bucket|kubelet_cgroup_manager_duration_seconds_count|kubelet_node_config_error|kubelet_node_name|kubelet_pleg_relist_duration_seconds_bucket|kubelet_pleg_relist_duration_seconds_count|kubelet_pleg_relist_interval_seconds_bucket|kubelet_pod_start_duration_seconds_bucket|kubelet_pod_start_duration_seconds_count|kubelet_pod_worker_duration_seconds_bucket|kubelet_pod_worker_duration_seconds_count|kubelet_running_container_count|kubelet_running_containers|kubelet_running_pod_count|kubelet_running_pods|kubelet_runtime_operations_errors_total|kubelet_runtime_operations_total|kubelet_server_expiration_renew_errors|kubelet_volume_stats_available_bytes|kubelet_volume_stats_capacity_bytes|kubelet_volume_stats_inodes|kubelet_volume_stats_inodes_used|kubernetes_build_info|namespace_workload_pod|rest_client_requests_total|storage_operation_duration_seconds_count|storage_operation_errors_total|volume_manager_total_volumes"
+                keep_metrics = "up|go_goroutines|kubelet_certificate_manager_client_expiration_renew_errors|kubelet_certificate_manager_client_ttl_seconds|kubelet_certificate_manager_server_ttl_seconds|kubelet_cgroup_manager_duration_seconds_bucket|kubelet_cgroup_manager_duration_seconds_count|kubelet_node_config_error|kubelet_node_name|kubelet_pleg_relist_duration_seconds_bucket|kubelet_pleg_relist_duration_seconds_count|kubelet_pleg_relist_interval_seconds_bucket|kubelet_pod_start_duration_seconds_bucket|kubelet_pod_start_duration_seconds_count|kubelet_pod_worker_duration_seconds_bucket|kubelet_pod_worker_duration_seconds_count|kubelet_running_container_count|kubelet_running_containers|kubelet_running_pod_count|kubelet_running_pods|kubelet_runtime_operations_errors_total|kubelet_runtime_operations_total|kubelet_server_expiration_renew_errors|kubelet_volume_stats_available_bytes|kubelet_volume_stats_capacity_bytes|kubelet_volume_stats_inodes|kubelet_volume_stats_inodes_free|kubelet_volume_stats_inodes_used|kubelet_volume_stats_used_bytes|kubernetes_build_info|namespace_workload_pod|process_cpu_seconds_total|process_resident_memory_bytes|rest_client_requests_total|storage_operation_duration_seconds_count|storage_operation_errors_total|volume_manager_total_volumes"
                 scrape_interval = "60s"
                 max_cache_size = 100000
                 forward_to = argument.metrics_destinations.value
@@ -166,7 +166,7 @@ tests:
               kube_state_metrics.scrape "metrics" {
                 targets = discovery.relabel.kube_state_metrics.output
                 clustering = true
-                keep_metrics = "up|kube_daemonset.*|kube_deployment_metadata_generation|kube_deployment_spec_replicas|kube_deployment_status_observed_generation|kube_deployment_status_replicas_available|kube_deployment_status_replicas_updated|kube_horizontalpodautoscaler_spec_max_replicas|kube_horizontalpodautoscaler_spec_min_replicas|kube_horizontalpodautoscaler_status_current_replicas|kube_horizontalpodautoscaler_status_desired_replicas|kube_job.*|kube_namespace_status_phase|kube_node.*|kube_persistentvolumeclaim_resource_requests_storage_bytes|kube_pod_container_info|kube_pod_container_resource_limits|kube_pod_container_resource_requests|kube_pod_container_status_last_terminated_reason|kube_pod_container_status_restarts_total|kube_pod_container_status_waiting_reason|kube_pod_info|kube_pod_owner|kube_pod_start_time|kube_pod_status_phase|kube_pod_status_reason|kube_replicaset.*|kube_resourcequota|kube_statefulset.*"
+                keep_metrics = "up|kube_daemonset.*|kube_deployment_metadata_generation|kube_deployment_spec_replicas|kube_deployment_status_condition|kube_deployment_status_observed_generation|kube_deployment_status_replicas_available|kube_deployment_status_replicas_updated|kube_horizontalpodautoscaler_spec_max_replicas|kube_horizontalpodautoscaler_spec_min_replicas|kube_horizontalpodautoscaler_status_current_replicas|kube_horizontalpodautoscaler_status_desired_replicas|kube_job.*|kube_namespace_status_phase|kube_node.*|kube_persistentvolume_status_phase|kube_persistentvolumeclaim_access_mode|kube_persistentvolumeclaim_info|kube_persistentvolumeclaim_labels|kube_persistentvolumeclaim_resource_requests_storage_bytes|kube_persistentvolumeclaim_status_phase|kube_pod_container_info|kube_pod_container_resource_limits|kube_pod_container_resource_requests|kube_pod_container_status_last_terminated_reason|kube_pod_container_status_restarts_total|kube_pod_container_status_waiting_reason|kube_pod_info|kube_pod_owner|kube_pod_spec_volumes_persistentvolumeclaims_info|kube_pod_start_time|kube_pod_status_phase|kube_pod_status_reason|kube_replicaset.*|kube_resourcequota|kube_statefulset.*"
                 scrape_interval = "60s"
                 max_cache_size = 100000
                 forward_to = [prometheus.relabel.kube_state_metrics.receiver]

charts/feature-cluster-metrics/tests/default_test.yaml

@@ -26,7 +26,7 @@ tests:
             
               kubernetes.kubelet "scrape" {
                 clustering = true
-                keep_metrics = "up|container_cpu_usage_seconds_total|kubelet_certificate_manager_client_expiration_renew_errors|kubelet_certificate_manager_client_ttl_seconds|kubelet_certificate_manager_server_ttl_seconds|kubelet_cgroup_manager_duration_seconds_bucket|kubelet_cgroup_manager_duration_seconds_count|kubelet_node_config_error|kubelet_node_name|kubelet_pleg_relist_duration_seconds_bucket|kubelet_pleg_relist_duration_seconds_count|kubelet_pleg_relist_interval_seconds_bucket|kubelet_pod_start_duration_seconds_bucket|kubelet_pod_start_duration_seconds_count|kubelet_pod_worker_duration_seconds_bucket|kubelet_pod_worker_duration_seconds_count|kubelet_running_container_count|kubelet_running_containers|kubelet_running_pod_count|kubelet_running_pods|kubelet_runtime_operations_errors_total|kubelet_runtime_operations_total|kubelet_server_expiration_renew_errors|kubelet_volume_stats_available_bytes|kubelet_volume_stats_capacity_bytes|kubelet_volume_stats_inodes|kubelet_volume_stats_inodes_used|kubernetes_build_info|namespace_workload_pod|rest_client_requests_total|storage_operation_duration_seconds_count|storage_operation_errors_total|volume_manager_total_volumes"
+                keep_metrics = "up|go_goroutines|kubelet_certificate_manager_client_expiration_renew_errors|kubelet_certificate_manager_client_ttl_seconds|kubelet_certificate_manager_server_ttl_seconds|kubelet_cgroup_manager_duration_seconds_bucket|kubelet_cgroup_manager_duration_seconds_count|kubelet_node_config_error|kubelet_node_name|kubelet_pleg_relist_duration_seconds_bucket|kubelet_pleg_relist_duration_seconds_count|kubelet_pleg_relist_interval_seconds_bucket|kubelet_pod_start_duration_seconds_bucket|kubelet_pod_start_duration_seconds_count|kubelet_pod_worker_duration_seconds_bucket|kubelet_pod_worker_duration_seconds_count|kubelet_running_container_count|kubelet_running_containers|kubelet_running_pod_count|kubelet_running_pods|kubelet_runtime_operations_errors_total|kubelet_runtime_operations_total|kubelet_server_expiration_renew_errors|kubelet_volume_stats_available_bytes|kubelet_volume_stats_capacity_bytes|kubelet_volume_stats_inodes|kubelet_volume_stats_inodes_free|kubelet_volume_stats_inodes_used|kubelet_volume_stats_used_bytes|kubernetes_build_info|namespace_workload_pod|process_cpu_seconds_total|process_resident_memory_bytes|rest_client_requests_total|storage_operation_duration_seconds_count|storage_operation_errors_total|volume_manager_total_volumes"
                 scrape_interval = "60s"
                 max_cache_size = 100000
                 forward_to = argument.metrics_destinations.value
@@ -139,7 +139,7 @@ tests:
               kube_state_metrics.scrape "metrics" {
                 targets = kube_state_metrics.kubernetes.targets.output
                 clustering = true
-                keep_metrics = "up|kube_daemonset.*|kube_deployment_metadata_generation|kube_deployment_spec_replicas|kube_deployment_status_observed_generation|kube_deployment_status_replicas_available|kube_deployment_status_replicas_updated|kube_horizontalpodautoscaler_spec_max_replicas|kube_horizontalpodautoscaler_spec_min_replicas|kube_horizontalpodautoscaler_status_current_replicas|kube_horizontalpodautoscaler_status_desired_replicas|kube_job.*|kube_namespace_status_phase|kube_node.*|kube_persistentvolumeclaim_resource_requests_storage_bytes|kube_pod_container_info|kube_pod_container_resource_limits|kube_pod_container_resource_requests|kube_pod_container_status_last_terminated_reason|kube_pod_container_status_restarts_total|kube_pod_container_status_waiting_reason|kube_pod_info|kube_pod_owner|kube_pod_start_time|kube_pod_status_phase|kube_pod_status_reason|kube_replicaset.*|kube_resourcequota|kube_statefulset.*"
+                keep_metrics = "up|kube_daemonset.*|kube_deployment_metadata_generation|kube_deployment_spec_replicas|kube_deployment_status_condition|kube_deployment_status_observed_generation|kube_deployment_status_replicas_available|kube_deployment_status_replicas_updated|kube_horizontalpodautoscaler_spec_max_replicas|kube_horizontalpodautoscaler_spec_min_replicas|kube_horizontalpodautoscaler_status_current_replicas|kube_horizontalpodautoscaler_status_desired_replicas|kube_job.*|kube_namespace_status_phase|kube_node.*|kube_persistentvolume_status_phase|kube_persistentvolumeclaim_access_mode|kube_persistentvolumeclaim_info|kube_persistentvolumeclaim_labels|kube_persistentvolumeclaim_resource_requests_storage_bytes|kube_persistentvolumeclaim_status_phase|kube_pod_container_info|kube_pod_container_resource_limits|kube_pod_container_resource_requests|kube_pod_container_status_last_terminated_reason|kube_pod_container_status_restarts_total|kube_pod_container_status_waiting_reason|kube_pod_info|kube_pod_owner|kube_pod_spec_volumes_persistentvolumeclaims_info|kube_pod_start_time|kube_pod_status_phase|kube_pod_status_reason|kube_replicaset.*|kube_resourcequota|kube_statefulset.*"
                 scrape_interval = "60s"
                 max_cache_size = 100000
                 forward_to = argument.metrics_destinations.value