Simple Log Service：Gunakan Prometheus untuk mengumpulkan data metrik Kubernetes

Instal Prometheus di kluster Kubernetes yang dikelola sendiri

Jika Anda menggunakan kluster Kubernetes yang dikelola sendiri, kami sarankan mendaftarkan kluster tersebut di Container Service for Kubernetes (ACK). Untuk informasi lebih lanjut, lihat Ikhtisar Kluster Terdaftar. Setelah kluster didaftarkan, instal Prometheus. Untuk informasi lebih lanjut, lihat Instal Prometheus di Kluster yang Dikelola oleh ACK. Jika Anda tidak ingin mendaftarkan kluster yang dikelola sendiri, instal Prometheus menggunakan Paket Helm. Sebelum menginstal Prometheus, Anda harus membuat rahasia dan memodifikasi pengaturan dalam Paket Helm.

Instal Prometheus di kluster yang dikelola oleh ACK

Jika Anda menggunakan kluster yang dikelola oleh ACK, ikuti langkah-langkah berikut untuk menginstal dan mengonfigurasi Prometheus di konsol ACK:

1. Masuk ke Konsol ACK.

2. Di halaman Clusters, klik kluster yang ingin Anda kelola.

3. Buat namespace.

   1. Di panel navigasi di sebelah kiri, pilih Namespaces and Quotas.

   2. Klik Create.

   3. Masukkan monitoring di bidang Nama dan klik OK.

4. Buat rahasia.

   1. Di panel navigasi di sebelah kiri, pilih Configurations > Secrets.

   2. Di bagian atas halaman yang muncul, pilih namespace monitoring yang Anda buat di Langkah 3.

   3. Klik Create.

   4. Konfigurasikan parameter dan klik OK. Tabel berikut menjelaskan parameter tersebut.

      

      Parameter	Deskripsi
      Name	Tetapkan nilainya menjadi sls-sk.
      Type	Pilih Opaque dan tambahkan pasangan kunci-nilai berikut: Tetapkan Name menjadi username dan Value menjadi ID AccessKey dari pengguna Resource Access Management (RAM) Anda. Tetapkan Name menjadi password dan Value menjadi Rahasia AccessKey dari pengguna RAM Anda. Kami sarankan Anda menggunakan pasangan AccessKey dari pengguna RAM yang hanya memiliki izin tulis pada proyek Simple Log Service. Untuk informasi lebih lanjut, lihat Berikan izin tulis kepada pengguna RAM pada proyek.

5. Buat operator Prometheus.

   1. Kembali ke halaman utama Konsol ACK.

   2. Di panel navigasi di sebelah kiri, pilih Marketplace > Marketplace.

   3. Klik kartu ack-prometheus-operator.

   4. Klik Deploy.

   5. Di langkah Basic Information, pilih kluster dan namespace Anda, lalu klik Next.

   6. Di langkah Parameters, modifikasi pengaturan di bidang Parameters dan klik OK.

      • Tetapkan nilai parameter retention di parameter prometheusSpec menjadi 1d atau 12h.

      • Ganti nilai parameter yang diperlukan di parameter remoteWrite dengan nilai aktual. Untuk informasi lebih lanjut, lihat RemoteWriteSpec.

        Di parameter remoteWrite, tetapkan nilai parameter url menjadi URL aktual dari Metricstore Anda. Tentukan URL dalam format https://{project}.{sls-endpoint}/prometheus/{project}/{metricstore}/api/v1/write. Variabel {sls-endpoint} menentukan titik akhir Simple Log Service. Untuk informasi lebih lanjut, lihat Titik Akhir. Variabel {project} dan {metricstore} menentukan proyek dan Metricstore yang Anda buat di konsol Simple Log Service.

        Catatan

        Jika Anda menggunakan jaringan internal Alibaba Cloud, kami sarankan menggunakan titik akhir internal Simple Log Service.

      • Jika Anda ingin mengumpulkan sejumlah besar data metrik menggunakan Prometheus, tetapkan parameter queue_config ke nilai berikut:

        batchSendDeadline: 30s
        capacity: 204800
        maxBackoff: 5s
        maxSamplesPerSend: 4096
        minBackoff: 100ms
        minShards: 100
        maxShards: 2048

      Penting

      Untuk mengurangi jumlah data yang dikumpulkan, kami sarankan mengonfigurasi parameter writeRelabelConfigs di parameter remoteWrite. Parameter writeRelabelConfigs memungkinkan Anda menghapus metrik yang tidak Anda butuhkan. Secara default, metrik Kubernetes yang tidak umum digunakan dihapus.

            remoteWrite:
            - basicAuth:
                username:
                  name: sls-sk
                  key: username
                password:
                  name: sls-sk
                  key: password
              queueConfig:
                batchSendDeadline: 30s
                capacity: 204800
                maxBackoff: 5s
                maxSamplesPerSend: 4096
                minBackoff: 100ms
                minShards: 100
                maxShards: 2048
              writeRelabelConfigs:
              - action: drop
                regex: APIServiceOpenAPIAggregationControllerQueue1_adds|APIServiceOpenAPIAggregationControllerQueue1_depth|APIServiceOpenAPIAggregationControllerQueue1_queue_latency|APIServiceOpenAPIAggregationControllerQueue1_queue_latency_count|APIServiceOpenAPIAggregationControllerQueue1_queue_latency_sum|APIServiceOpenAPIAggregationControllerQueue1_retries|APIServiceOpenAPIAggregationControllerQueue1_work_duration|APIServiceOpenAPIAggregationControllerQueue1_work_duration_count|APIServiceOpenAPIAggregationControllerQueue1_work_duration_sum|APIServiceRegistrationController_adds|APIServiceRegistrationController_depth|APIServiceRegistrationController_queue_latency|APIServiceRegistrationController_queue_latency_count|APIServiceRegistrationController_queue_latency_sum|APIServiceRegistrationController_retries|APIServiceRegistrationController_work_duration|APIServiceRegistrationController_work_duration_count|APIServiceRegistrationController_work_duration_sum|AvailableConditionController_adds|AvailableConditionController_depth|AvailableConditionController_queue_latency|AvailableConditionController_queue_latency_count|AvailableConditionController_queue_latency_sum|AvailableConditionController_retries|AvailableConditionController_work_duration|AvailableConditionController_work_duration_count|AvailableConditionController_work_duration_sum|DiscoveryController_adds|DiscoveryController_depth|DiscoveryController_queue_latency|DiscoveryController_queue_latency_count|DiscoveryController_queue_latency_sum|DiscoveryController_retries|DiscoveryController_work_duration|DiscoveryController_work_duration_count|DiscoveryController_work_duration_sum|admission_quota_controller_adds|admission_quota_controller_depth|admission_quota_controller_queue_latency|admission_quota_controller_queue_latency_count|admission_quota_controller_queue_latency_sum|admission_quota_controller_work_duration|admission_quota_controller_work_duration_count|admission_quota_controller_work_duration_sum|alertmanager_alerts|alertmanager_alerts_invalid_total|alertmanager_alerts_received_total|alertmanager_build_info|alertmanager_cluster_failed_peers|alertmanager_cluster_health_score|alertmanager_cluster_members|alertmanager_cluster_messages_pruned_total|alertmanager_cluster_messages_queued|alertmanager_cluster_messages_received_size_total|alertmanager_cluster_messages_received_total|alertmanager_cluster_messages_sent_size_total|alertmanager_cluster_messages_sent_total|alertmanager_cluster_peers_joined_total|alertmanager_cluster_peers_left_total|alertmanager_cluster_peers_update_total|alertmanager_cluster_reconnections_failed_total|alertmanager_cluster_reconnections_total|alertmanager_cluster_refresh_join_failed_total|alertmanager_cluster_refresh_join_total|alertmanager_config_hash|alertmanager_config_last_reload_success_timestamp_seconds|alertmanager_config_last_reload_successful|alertmanager_http_request_duration_seconds_bucket|alertmanager_http_request_duration_seconds_count|alertmanager_http_request_duration_seconds_sum|alertmanager_http_response_size_bytes_bucket|alertmanager_http_response_size_bytes_count|alertmanager_http_response_size_bytes_sum|alertmanager_nflog_gc_duration_seconds|alertmanager_nflog_gc_duration_seconds_count|alertmanager_nflog_gc_duration_seconds_sum|alertmanager_nflog_gossip_messages_propagated_total|alertmanager_nflog_queries_total|alertmanager_nflog_query_duration_seconds_bucket|alertmanager_nflog_query_duration_seconds_count|alertmanager_nflog_query_duration_seconds_sum|alertmanager_nflog_query_errors_total|alertmanager_nflog_snapshot_duration_seconds|alertmanager_nflog_snapshot_duration_seconds_count|alertmanager_nflog_snapshot_duration_seconds_sum|alertmanager_nflog_snapshot_size_bytes|alertmanager_notification_latency_seconds_bucket|alertmanager_notification_latency_seconds_count|alertmanager_notification_latency_seconds_sum|alertmanager_notifications_failed_total|alertmanager_notifications_total|alertmanager_oversize_gossip_message_duration_seconds_bucket|alertmanager_oversize_gossip_message_duration_seconds_count|alertmanager_oversize_gossip_message_duration_seconds_sum|alertmanager_oversized_gossip_message_dropped_total|alertmanager_oversized_gossip_message_failure_total|alertmanager_oversized_gossip_message_sent_total|alertmanager_peer_position|alertmanager_silences|alertmanager_silences_gc_duration_seconds|alertmanager_silences_gc_duration_seconds_count|alertmanager_silences_gc_duration_seconds_sum|alertmanager_silences_gossip_messages_propagated_total|alertmanager_silences_queries_total|alertmanager_silences_query_duration_seconds_bucket|alertmanager_silences_query_duration_seconds_count|alertmanager_silences_query_duration_seconds_sum|alertmanager_silences_query_errors_total|alertmanager_silences_snapshot_duration_seconds|alertmanager_silences_snapshot_duration_seconds_count|alertmanager_silences_snapshot_duration_seconds_sum|alertmanager_silences_snapshot_size_bytes|apiserver_admission_controller_admission_latencies_seconds_bucket|apiserver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he_flush_forced_total|prometheus_target_scrapes_exceeded_sample_limit_total|prometheus_target_scrapes_sample_duplicate_timestamp_total|prometheus_target_scrapes_sample_out_of_bounds_total|prometheus_target_scrapes_sample_out_of_order_total|prometheus_target_sync_length_seconds|prometheus_target_sync_length_seconds_count|prometheus_target_sync_length_seconds_sum|prometheus_template_text_expansion_failures_total|prometheus_template_text_expansions_total|prometheus_treecache_watcher_goroutines|prometheus_treecache_zookeeper_failures_total|prometheus_tsdb_blocks_loaded|prometheus_tsdb_checkpoint_creations_failed_total|prometheus_tsdb_checkpoint_creations_total|prometheus_tsdb_checkpoint_deletions_failed_total|prometheus_tsdb_checkpoint_deletions_total|prometheus_tsdb_compaction_chunk_range_seconds_bucket|prometheus_tsdb_compaction_chunk_range_seconds_count|prometheus_tsdb_compaction_chunk_range_seconds_sum|prometheus_tsdb_compaction_chunk_samples_bucket|prometheus_tsdb_compaction_chunk_samples_count|prometheus_tsdb_compaction_chunk_samples_sum|prometheus_tsdb_compaction_chunk_size_bytes_bucket|prometheus_tsdb_compaction_chunk_size_bytes_count|prometheus_tsdb_compaction_chunk_size_bytes_sum|prometheus_tsdb_compaction_duration_seconds_bucket|prometheus_tsdb_compaction_duration_seconds_count|prometheus_tsdb_compaction_duration_seconds_sum|prometheus_tsdb_compaction_populating_block|prometheus_tsdb_compactions_failed_total|prometheus_tsdb_compactions_total|prometheus_tsdb_compactions_triggered_total|prometheus_tsdb_head_active_appenders|prometheus_tsdb_head_chunks|prometheus_tsdb_head_chunks_created_total|prometheus_tsdb_head_chunks_removed_total|prometheus_tsdb_head_gc_duration_seconds_count|prometheus_tsdb_head_gc_duration_seconds_sum|prometheus_tsdb_head_max_time|prometheus_tsdb_head_max_time_seconds|prometheus_tsdb_head_min_time|prometheus_tsdb_head_min_time_seconds|prometheus_tsdb_head_samples_appended_total|prometheus_tsdb_head_series|prometheus_tsdb_head_series_created_total|prometheus_tsdb_head_series_not_found_total|prometheus_tsdb_head_series_removed_total|prometheus_tsdb_head_truncations_failed_total|prometheus_tsdb_head_truncations_total|prometheus_tsdb_lowest_timestamp|prometheus_tsdb_lowest_timestamp_seconds|prometheus_tsdb_reloads_failures_total|prometheus_tsdb_reloads_total|prometheus_tsdb_size_retentions_total|prometheus_tsdb_storage_blocks_bytes|prometheus_tsdb_symbol_table_size_bytes|prometheus_tsdb_time_retentions_total|prometheus_tsdb_tombstone_cleanup_seconds_bucket|prometheus_tsdb_tombstone_cleanup_seconds_count|prometheus_tsdb_tombstone_cleanup_seconds_sum|prometheus_tsdb_vertical_compactions_total|prometheus_tsdb_wal_completed_pages_total|prometheus_tsdb_wal_corruptions_total|prometheus_tsdb_wal_fsync_duration_seconds_count|prometheus_tsdb_wal_fsync_duration_seconds_sum|prometheus_tsdb_wal_page_flushes_total|prometheus_tsdb_wal_truncate_duration_seconds_count|prometheus_tsdb_wal_truncate_duration_seconds_sum|prometheus_tsdb_wal_truncations_failed_total|prometheus_tsdb_wal_truncations_total|prometheus_wal_watcher_current_segment|prometheus_wal_watcher_record_decode_failures_total|prometheus_wal_watcher_records_read_total|prometheus_wal_watcher_samples_sent_pre_tailing_total|reflector_items_per_list_count|reflector_items_per_list_sum|reflector_items_per_watch|reflector_items_per_watch_count|reflector_items_per_watch_sum|reflector_last_resource_version|reflector_list_duration_seconds_count|reflector_list_duration_seconds_sum|reflector_lists_total|reflector_short_watches_total|reflector_watch_duration_seconds|reflector_watch_duration_seconds_count|reflector_watch_duration_seconds_sum|reflector_watches_total|rest_client_request_latency_seconds_bucket|rest_client_request_latency_seconds_count|rest_client_request_latency_seconds_sum|ssh_tunnel_open_count|ssh_tunnel_open_fail_count|storage_operation_duration_seconds_bucket|storage_operation_duration_seconds_count|storage_operation_duration_seconds_sum|storage_operation_errors_total|volume_manager_total_volumesapiserver_current_inflight_requests
                sourceLabels:
                - __name__
              ### URL dari Metricstore. Format: https://{project}.{sls-endpoint}/prometheus/{project}/{metricstore}/api/v1/write.
              ### Ganti variabel {sls-endpoint} dengan titik akhir Simple Log Service untuk wilayah tempat proyek berada. Untuk informasi lebih lanjut, lihat Titik Akhir. 
              ### Ganti variabel {project} dengan nama proyek, dan ganti variabel {metricstore} dengan nama Metricstore. 
              url: https://sls-prometheus-test.cn-beijing.log.aliyuncs.com/prometheus/sls-prometheus-test/prometheus-raw/api/v1/write
                                      

Gunakan Grafana untuk mengakses data yang dikumpulkan menggunakan Prometheus

1. Masuk ke Grafana.

2. Di panel navigasi di sebelah kiri, pilih > Data Sources.

3. Di tab Data Sources, klik Add data source.

4. Gerakkan pointer ke atas kartu Prometheus dan klik Select.

5. Di tab Settings, konfigurasikan parameter. Tabel berikut menjelaskan parameter tersebut.

   Parameter	Deskripsi
   Nama	Masukkan nama untuk sumber data. Contoh: Prometheus-01.
   HTTP	URL: Masukkan URL dari Metricstore dalam format https://{project}.{sls-endpoint}/prometheus/{project}/{metricstore}. Variabel {sls-endpoint} menentukan titik akhir Simple Log Service. Untuk informasi lebih lanjut, lihat Titik Akhir. Variabel {project} dan {metricstore} menentukan proyek dan Metricstore yang Anda buat di konsol Simple Log Service. Ganti nilai-nilai tersebut dengan nilai aktual. Dalam contoh ini, URL adalah https://sls-prometheus-test.cn-hangzhou.log.aliyuncs.com/prometheus/sls-prometheus-test/prometheus. Penting Jika Anda menggunakan jaringan internal Alibaba Cloud, kami sarankan Anda menggunakan titik akhir internal Simple Log Service. Untuk memastikan transmisi aman, Anda harus menggunakan HTTPS. Whitelisted Cookies: Tambahkan daftar putih. Parameter ini opsional.
   Auth	Pilih hanya kotak centang Basic Auth.
   Detail Basic Auth	User: Masukkan ID AccessKey dari akun Alibaba Cloud Anda. Password: Masukkan Rahasia AccessKey akun Alibaba Cloud Anda. Kami sarankan Anda menggunakan pasangan AccessKey dari pengguna RAM yang memiliki izin baca-saja pada proyek Simple Log Service. Untuk informasi lebih lanjut, lihat Berikan izin baca-saja kepada pengguna RAM pada proyek tertentu.

6. Klik Save&Test.

   Setelah Anda mengonfigurasi pengaturan, Anda dapat melihat data metrik di dasbor Grafana.