Default Prometheus metrics configuration in Azure Monitor

Artikkeli
11/29/2024

This article lists the default targets, dashboards, and recording rules when you configure Prometheus metrics to be scraped from an Azure Kubernetes Service (AKS) cluster for any AKS cluster.

Minimal ingestion profile

Minimal ingestion profile is a setting that helps reduce ingestion volume of metrics, as only metrics used by default dashboards, default recording rules & default alerts are collected. For addon based collection, Minimal ingestion profile setting is enabled by default. You can modify collection to enable collecting more metrics, as specified below.

Scrape frequency

The default scrape frequency for all default targets and scrapes is 30 seconds.

Targets scraped by default

Following targets are enabled/ON by default - meaning you don't have to provide any scrape job configuration for scraping these targets, as metrics addon will scrape these targets automatically by default.

cadvisor (job=cadvisor)
nodeexporter (job=node)
kubelet (job=kubelet)
kube-state-metrics (job=kube-state-metrics)
networkobservabilityRetina (job=networkobservabilityRetina)

The following targets are enabled/ON when you enable control plane metrics (preview) feature. You can use control plane metrics to maximize overall observability and maintain operational excellence for your AKS cluster. For more information, see Control plane metrics (preview).

controlplane-apiserver (job=controlplane-apiserver)
controlplane-etcd (job=controlplane-etcd)

The following targets are enabled/ON when you enable Container Network Observability which is a feature of the Advanced Container Networking Services suite and is compatible with all Linux workloads seamlessly integrating with Hubble for both Cilium or non-Cilium based data plane. This allows flexibility for your container networking needs. For more information, see Advanced Container Networking Services.

networkobservabilityHubble (job=networkobservabilityHubble)
networkobservabilityCilium (job=networkobservabilityCilium)

Metrics collected from default targets

The following metrics are collected by default from each default target. All other metrics are dropped through relabeling rules.

cadvisor (job=cadvisor)

container_spec_cpu_period
container_spec_cpu_quota
container_cpu_usage_seconds_total
container_memory_rss
container_network_receive_bytes_total
container_network_transmit_bytes_total
container_network_receive_packets_total
container_network_transmit_packets_total
container_network_receive_packets_dropped_total
container_network_transmit_packets_dropped_total
container_fs_reads_total
container_fs_writes_total
container_fs_reads_bytes_total
container_fs_writes_bytes_total
container_memory_working_set_bytes
container_memory_cache
container_memory_swap
container_cpu_cfs_throttled_periods_total
container_cpu_cfs_periods_total
container_memory_usage_bytes
kubernetes_build_info"

kubelet (job=kubelet)

kubelet_volume_stats_used_bytes
kubelet_node_name
kubelet_running_pods
kubelet_running_pod_count
kubelet_running_containers
kubelet_running_container_count
volume_manager_total_volumes
kubelet_node_config_error
kubelet_runtime_operations_total
kubelet_runtime_operations_errors_total
kubelet_runtime_operations_duration_seconds kubelet_runtime_operations_duration_seconds_bucket kubelet_runtime_operations_duration_seconds_sum kubelet_runtime_operations_duration_seconds_count
kubelet_pod_start_duration_seconds kubelet_pod_start_duration_seconds_bucket kubelet_pod_start_duration_seconds_sum kubelet_pod_start_duration_seconds_count
kubelet_pod_worker_duration_seconds kubelet_pod_worker_duration_seconds_bucket kubelet_pod_worker_duration_seconds_sum kubelet_pod_worker_duration_seconds_count
storage_operation_duration_seconds storage_operation_duration_seconds_bucket storage_operation_duration_seconds_sum storage_operation_duration_seconds_count
storage_operation_errors_total
kubelet_cgroup_manager_duration_seconds kubelet_cgroup_manager_duration_seconds_bucket kubelet_cgroup_manager_duration_seconds_sum kubelet_cgroup_manager_duration_seconds_count
kubelet_pleg_relist_duration_seconds kubelet_pleg_relist_duration_seconds_bucket kubelet_pleg_relist_duration_sum kubelet_pleg_relist_duration_seconds_count
kubelet_pleg_relist_interval_seconds kubelet_pleg_relist_interval_seconds_bucket kubelet_pleg_relist_interval_seconds_sum kubelet_pleg_relist_interval_seconds_count
rest_client_requests_total
rest_client_request_duration_seconds rest_client_request_duration_seconds_bucket rest_client_request_duration_seconds_sum rest_client_request_duration_seconds_count
process_resident_memory_bytes
process_cpu_seconds_total
go_goroutines
kubelet_volume_stats_capacity_bytes
kubelet_volume_stats_available_bytes
kubelet_volume_stats_inodes_used
kubelet_volume_stats_inodes
kubernetes_build_info"

nodexporter (job=node)

node_cpu_seconds_total
node_memory_MemAvailable_bytes
node_memory_Buffers_bytes
node_memory_Cached_bytes
node_memory_MemFree_bytes
node_memory_Slab_bytes
node_memory_MemTotal_bytes
node_netstat_Tcp_RetransSegs
node_netstat_Tcp_OutSegs
node_netstat_TcpExt_TCPSynRetrans
node_load1``node_load5
node_load15
node_disk_read_bytes_total
node_disk_written_bytes_total
node_disk_io_time_seconds_total
node_filesystem_size_bytes
node_filesystem_avail_bytes
node_filesystem_readonly
node_network_receive_bytes_total
node_network_transmit_bytes_total
node_vmstat_pgmajfault
node_network_receive_drop_total
node_network_transmit_drop_total
node_disk_io_time_weighted_seconds_total
node_exporter_build_info
node_time_seconds
node_uname_info"

kube-state-metrics (job=kube-state-metrics)

kube_job_status_succeeded
kube_job_spec_completions
kube_daemonset_status_desired_number_scheduled
kube_daemonset_status_number_ready
kube_deployment_status_replicas_ready
kube_pod_container_status_last_terminated_reason
kube_pod_container_status_waiting_reason
kube_pod_container_status_restarts_total
kube_node_status_allocatable
kube_pod_owner
kube_pod_container_resource_requests
kube_pod_status_phase
kube_pod_container_resource_limits
kube_replicaset_owner
kube_resourcequota
kube_namespace_status_phase
kube_node_status_capacity
kube_node_info
kube_pod_info
kube_deployment_spec_replicas
kube_deployment_status_replicas_available
kube_deployment_status_replicas_updated
kube_statefulset_status_replicas_ready
kube_statefulset_status_replicas
kube_statefulset_status_replicas_updated
kube_job_status_start_time
kube_job_status_active
kube_job_failed
kube_horizontalpodautoscaler_status_desired_replicas
kube_horizontalpodautoscaler_status_current_replicas
kube_horizontalpodautoscaler_spec_min_replicas
kube_horizontalpodautoscaler_spec_max_replicas
kubernetes_build_info
kube_node_status_condition
kube_node_spec_taint
kube_pod_container_info
kube_resource_labels (ex - kube_pod_labels, kube_deployment_labels)
kube_resource_annotations (ex - kube_pod_annotations, kube_deployment_annotations)

controlplane-apiserver (job=controlplane-apiserver)

apiserver_request_total
apiserver_cache_list_fetched_objects_total
apiserver_cache_list_returned_objects_total
apiserver_flowcontrol_demand_seats_average
apiserver_flowcontrol_current_limit_seats
apiserver_request_sli_duration_seconds_bucket
apiserver_request_sli_duration_seconds_count
apiserver_request_sli_duration_seconds_sum
process_start_time_seconds
apiserver_request_duration_seconds_bucket
apiserver_request_duration_seconds_count
apiserver_request_duration_seconds_sum
apiserver_storage_list_fetched_objects_total
apiserver_storage_list_returned_objects_total
apiserver_current_inflight_requests

controlplane-etcd (job=controlplane-etcd)

etcd_server_has_leader
rest_client_requests_total
etcd_mvcc_db_total_size_in_bytes
etcd_mvcc_db_total_size_in_use_in_bytes
etcd_server_slow_read_indexes_total
etcd_server_slow_apply_total
etcd_network_client_grpc_sent_bytes_total
etcd_server_heartbeat_send_failures_total

networkobservabilityHubble (job=networkobservabilityHubble), and networkobservabilityCilium (job=networkobservabilityCilium)
For list of metrics collected by these targets, see Container Network Observability metrics

Default targets scraped for Windows

Following Windows targets are configured to scrape, but scraping isn't enabled (disabled/OFF) by default - meaning you don't have to provide any scrape job configuration for scraping these targets but they are disabled/OFF by default and you need to turn ON/enable scraping for these targets using ama-metrics-settings-configmap under default-scrape-settings-enabled section.

Two default jobs can be run for Windows that scrape metrics required for the dashboards specific to Windows.

windows-exporter (job=windows-exporter)
kube-proxy-windows (job=kube-proxy-windows)

Note

This requires applying or updating the ama-metrics-settings-configmap configmap and installing windows-exporter on all Windows nodes. For more information, see the enablement document.

Metrics scraped for Windows

The following metrics are collected when windows-exporter and kube-proxy-windows are enabled.

windows-exporter (job=windows-exporter)

windows_system_system_up_time
windows_cpu_time_total
windows_memory_available_bytes
windows_os_visible_memory_bytes
windows_memory_cache_bytes
windows_memory_modified_page_list_bytes
windows_memory_standby_cache_core_bytes
windows_memory_standby_cache_normal_priority_bytes
windows_memory_standby_cache_reserve_bytes
windows_memory_swap_page_operations_total
windows_logical_disk_read_seconds_total
windows_logical_disk_write_seconds_total
windows_logical_disk_size_bytes
windows_logical_disk_free_bytes
windows_net_bytes_total
windows_net_packets_received_discarded_total
windows_net_packets_outbound_discarded_total
windows_container_available
windows_container_cpu_usage_seconds_total
windows_container_memory_usage_commit_bytes
windows_container_memory_usage_private_working_set_bytes
windows_container_network_receive_bytes_total
windows_container_network_transmit_bytes_total

kube-proxy-windows (job=kube-proxy-windows)

kubeproxy_sync_proxy_rules_duration_seconds
kubeproxy_sync_proxy_rules_duration_seconds_bucket
kubeproxy_sync_proxy_rules_duration_seconds_sum
kubeproxy_sync_proxy_rules_duration_seconds_count
rest_client_requests_total
rest_client_request_duration_seconds
rest_client_request_duration_seconds_bucket
rest_client_request_duration_seconds_sum
rest_client_request_duration_seconds_count
process_resident_memory_bytes
process_cpu_seconds_total
go_goroutines

Dashboards

The following default dashboards are automatically provisioned and configured by Azure Monitor managed service for Prometheus when you link your Azure Monitor workspace to an Azure Managed Grafana instance. Source code for these dashboards can be found in this GitHub repository. The below dashboards will be provisioned in the specified Azure Grafana instance under Managed Prometheus folder in Grafana. These are the standard open source community dashboards for monitoring Kubernetes clusters with Prometheus and Grafana.

Kubernetes / Compute Resources / Cluster
Kubernetes / Compute Resources / Namespace (Pods)
Kubernetes / Compute Resources / Node (Pods)
Kubernetes / Compute Resources / Pod
Kubernetes / Compute Resources / Namespace (Workloads)
Kubernetes / Compute Resources / Workload
Kubernetes / Kubelet
Node Exporter / USE Method / Node
Node Exporter / Nodes
Kubernetes / Compute Resources / Cluster (Windows)
Kubernetes / Compute Resources / Namespace (Windows)
Kubernetes / Compute Resources / Pod (Windows)
Kubernetes / USE Method / Cluster (Windows)
Kubernetes / USE Method / Node (Windows)

Recording rules

The following default recording rules are automatically configured by Azure Monitor managed service for Prometheus when you configure Prometheus metrics to be scraped from an Azure Kubernetes Service (AKS) cluster. Source code for these recording rules can be found in this GitHub repository. These are the standard open source recording rules used in the dashboards above.

cluster:node_cpu:ratio_rate5m
namespace_cpu:kube_pod_container_resource_requests:sum
namespace_cpu:kube_pod_container_resource_limits:sum
:node_memory_MemAvailable_bytes:sum
namespace_memory:kube_pod_container_resource_requests:sum
namespace_memory:kube_pod_container_resource_limits:sum
namespace_workload_pod:kube_pod_owner:relabel
node_namespace_pod_container:container_cpu_usage_seconds_total:sum_irate
cluster:namespace:pod_cpu:active:kube_pod_container_resource_requests
cluster:namespace:pod_cpu:active:kube_pod_container_resource_limits
cluster:namespace:pod_memory:active:kube_pod_container_resource_requests
cluster:namespace:pod_memory:active:kube_pod_container_resource_limits
node_namespace_pod_container:container_memory_working_set_bytes
node_namespace_pod_container:container_memory_rss
node_namespace_pod_container:container_memory_cache
node_namespace_pod_container:container_memory_swap
instance:node_cpu_utilisation:rate5m
instance:node_load1_per_cpu:ratio
instance:node_memory_utilisation:ratio
instance:node_vmstat_pgmajfault:rate5m
instance:node_network_receive_bytes_excluding_lo:rate5m
instance:node_network_transmit_bytes_excluding_lo:rate5m
instance:node_network_receive_drop_excluding_lo:rate5m
instance:node_network_transmit_drop_excluding_lo:rate5m
instance_device:node_disk_io_time_seconds:rate5m
instance_device:node_disk_io_time_weighted_seconds:rate5m
instance:node_num_cpu:sum
node:windows_node:sum
node:windows_node_num_cpu:sum
:windows_node_cpu_utilisation:avg5m
node:windows_node_cpu_utilisation:avg5m
:windows_node_memory_utilisation:
:windows_node_memory_MemFreeCached_bytes:sum
node:windows_node_memory_totalCached_bytes:sum
:windows_node_memory_MemTotal_bytes:sum
node:windows_node_memory_bytes_available:sum
node:windows_node_memory_bytes_total:sum
node:windows_node_memory_utilisation:ratio
node:windows_node_memory_utilisation:
node:windows_node_memory_swap_io_pages:irate
:windows_node_disk_utilisation:avg_irate
node:windows_node_disk_utilisation:avg_irate
node:windows_node_filesystem_usage:
node:windows_node_filesystem_avail:
:windows_node_net_utilisation:sum_irate
node:windows_node_net_utilisation:sum_irate
:windows_node_net_saturation:sum_irate
node:windows_node_net_saturation:sum_irate
windows_pod_container_available
windows_container_total_runtime
windows_container_memory_usage
windows_container_private_working_set_usage
windows_container_network_received_bytes_total
windows_container_network_transmitted_bytes_total
kube_pod_windows_container_resource_memory_request
kube_pod_windows_container_resource_memory_limit
kube_pod_windows_container_resource_cpu_cores_request
kube_pod_windows_container_resource_cpu_cores_limit
namespace_pod_container:windows_container_cpu_usage_seconds_total:sum_rate

Prometheus visualization recording rules

When you use Prometheus based Container Insights, more recording rules will be deployed to support the Prometheus visualizations.

ux:cluster_pod_phase_count:sum
ux:node_cpu_usage:sum_irate
ux:node_memory_usage:sum
ux:controller_pod_phase_count:sum
ux:controller_container_count:sum
ux:controller_workingset_memory:sum
ux:controller_cpu_usage:sum_irate
ux:controller_rss_memory:sum
ux:controller_resource_limit:sum
ux:controller_container_restarts:max
ux:pod_container_count:sum
ux:pod_cpu_usage:sum_irate
ux:pod_workingset_memory:sum
ux:pod_rss_memory:sum
ux:pod_resource_limit:sum
ux:pod_container_restarts:max
ux:node_network_receive_drop_total:sum_irate
ux:node_network_transmit_drop_total:sum_irate

The following recording rules are required for Windows support. These rules are deployed along with the above rules, however, they aren't enabled by default. Follow the instructions for enabling and disabling rule groups in your Azure Monitor workspace.

ux:node_cpu_usage_windows:sum_irate
ux:node_memory_usage_windows:sum
ux:controller_cpu_usage_windows:sum_irate
ux:controller_workingset_memory_windows:sum
ux:pod_cpu_usage_windows:sum_irate
ux:pod_workingset_memory_windows:sum

Next steps

Customize scraping of Prometheus metrics.

Jaa