Alibaba Cloud Service Mesh:Integrate a self-managed Prometheus for mesh monitoring

Install ack-prometheus-operator

This topic uses ack-prometheus-operator, an open source component for ACK clusters, as an example. If you install a self-managed Prometheus in your cluster by using other methods, you must add the content of additionalScrapeConfigs to the scrape configs of your Prometheus instance. For more information about scrape configs, see prometheus_scrape_config.

1. Log on to the ACK console. In the left navigation pane, click Clusters.

2. On the Clusters page, click the name of your cluster. In the left navigation pane, click Applications > Helm.

3. On the Helm page, find ack-prometheus-operator and click Update in the Actions column.

4. In the Update Release panel, modify the additionalScrapeConfigs field in the YAML text box, and then click OK.

   The YAML file is long. Press Ctrl+F to search for the additionalScrapeConfigs field. The modified additionalScrapeConfigs field is as follows:

   additionalScrapeConfigs:
   # Scrape config for envoy stats
   - job_name: 'envoy-stats'
     metrics_path: /stats/prometheus
     kubernetes_sd_configs:
     - role: pod
     relabel_configs:
     - source_labels: [__meta_kubernetes_pod_container_port_name]
       action: keep
       regex: '.*-envoy-prom'
     - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
       action: replace
       regex: ([^:]+)(?::\d+)?;(\d+)
       replacement: $1:15090
       target_label: __address__
     - action: labeldrop
       regex: __meta_kubernetes_pod_label_(.+)
     - source_labels: [__meta_kubernetes_namespace]
       action: replace
       target_label: namespace
     - source_labels: [__meta_kubernetes_pod_name]
       action: replace
       target_label: pod_name

Generate metrics

Verify the results

details=$(kubectl get pod -l app=details -o jsonpath={.items..metadata.name})
kubectl exec $details -c istio-proxy -- curl -s localhost:15090/stats/prometheus |grep istio