Configuração de métricas padrão do Prometheus no Azure Monitor

Este artigo lista os destinos, painéis e regras de gravação padrão ao configurar métricas do Prometheus para extração de um cluster do Serviço de Kubernetes do Azure (AKS) para qualquer cluster do AKS.

Perfil mínimo de ingestão

Minimal ingestion profile é uma configuração que ajuda a reduzir o volume de ingestão de métricas, pois somente as métricas usadas por painéis padrão, regras de gravação padrão e alertas padrão são coletados. Para a coleção baseada em complemento, a configuração Minimal ingestion profile é habilitada por padrão. Você pode modificar a coleção para habilitar a coleta de mais métricas, conforme especificado abaixo.

Frequência de extração

A frequência de extração padrão para todos os destinos e extrações padrão é de 30 segundos.

Destinos extraídas por padrão

Os destinos a seguir são habilitados/ON por padrão – o que significa que você não precisa fornecer nenhuma configuração de trabalho de extração para extrair esses destinos, pois o complemento de métricas extrairá esses destinos automaticamente por padrão.

• cadvisor (job=cadvisor)
• nodeexporter (job=node)
• kubelet (job=kubelet)
• kube-state-metrics (job=kube-state-metrics)
• controlplane-apiserver (job=controlplane-apiserver)
• controlplane-etcd (job=controlplane-etcd)

Métricas coletadas de destinos padrão

As métricas a seguir são coletadas por padrão de cada destino padrão. Todas as outras métricas são removidas por meio de regras de nova rotulagem.

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

Destinos padrão extraídos para o Windows

Os destinos do Windows a seguir são configurados para fazer extração, mas a extração não está habilitada (desabilitada/desativada) por padrão – o que significa que você não precisa fornecer nenhuma configuração de trabalho de extração para extrair esses destinos, mas eles estão desabilitados/desativados por padrão e você precisa ativar/habilitar a extração para esses destinos usando ama-metrics-settings-configmap na seção default-scrape-settings-enabled.

Duas tarefas padrão podem ser executadas no Windows que extraem as métricas necessárias para os painéis específicos do Windows.

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

Observação

Isso requer a aplicação ou atualização do configmap ama-metrics-settings-configmap e a instalação de windows-exporter em todos os nós do Windows. Para obter mais informações, confira o documento de habilitação.

Métricas extraídas do Windows

As métricas a seguir são coletadas quando o windows-exporter e o kube-proxy-windows estão habilitados.

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

Painéis

Os painéis padrão a seguir são provisionados e configurados automaticamente pelo serviço gerenciado para Prometheus do Azure Monitor ao vincular seu workspace do Azure Monitor a uma instância do Espaço Gerenciado do Azure para Grafana. O código-fonte desses painéis pode ser encontrado no repositório do GitHub. Os painéis abaixo serão provisionados na instância do Azure Grafana especificada na pasta Managed Prometheus no Grafana. Estes são os painéis de comunidade de código aberto padrão para monitorar os clusters do Kubernetes com o Prometheus e o 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)

Regras de gravação

As seguintes regras de gravação padrão são configuradas automaticamente pelo serviço gerenciado do Azure Monitor para Prometheus quando você configurar as métricas do Prometheus a serem raspadas de um cluster do Serviço de Kubernetes do Azure (AKS). O código-fonte dessas regras de gravação pode ser encontrado no repositório do GitHub. Estas são as regras padrão de gravação de código aberto usadas nos painéis acima.

• 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

Regras de gravação de visualização do Prometheus

Quando você usa os Insights do Contêiner baseados em Prometheus, mais regras de gravação são implantadas para dar suporte às visualizações do Prometheus.

• 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

As regras de gravação a seguir são necessárias para o suporte do Windows. Essas regras são implantadas junto com as regras acima; no entanto, elas não estão habilitadas por padrão. Siga as instruções para habilitar e desabilitar grupos de regras no workspace do Azure Monitor.

• 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

Próximas etapas

Personalize a extração de métricas do Prometheus.