How to use Prometheus Service in a workflow cluster - Container Service for Kubernetes

A workflow cluster integrates with Application Real-Time Monitoring Service (ARMS) Prometheus Service to provide comprehensive observability. You can view the status of your workflows and the health of your cluster. This topic describes how to enable and use Prometheus Service in a workflow cluster.

Prerequisites

You have activated Distributed Cloud Container Platform for Kubernetes (ACK One).
You have activated Elastic Container Instance (ECI).
You have activated ARMS.
You have created a distributed workflow Argo cluster.
You have installed Alibaba Cloud CLI and configured its credentials. The CLI version must be 3.0.167 or later. For more information, see Install Alibaba Cloud CLI and Configure credentials.
You have granted the AliyunAdcpFullAccess permission to a Resource Access Management (RAM) user. For more information, see Grant permissions to a RAM user.

Billing

Monitoring a workflow cluster incurs additional fees. Before you enable this feature, carefully read the billing information.

Enable Prometheus Service

Enable through the console

Log on to the ACK One console. In the navigation pane on the left, choose Workflow Cluster > Cluster Monitoring.
On the Cluster Monitoring page, click Enable Workflow Cluster Monitoring. Then, click OK to enable monitoring for the workflow cluster.

Enable with a command

Run the following command to retrieve the ClusterID of the workflow cluster.
```
aliyun adcp DescribeHubClusters --Profile=XFlow
```
Run the following command to enable Prometheus Service.
```
aliyun adcp UpdateHubClusterFeature --MonitorEnabled true --ClusterId <cluster id>
```
After you enable Prometheus Service, an ARMS Prometheus instance is automatically created for the workflow cluster.

View the Prometheus dashboard

Log on to the ACK One console. In the navigation pane on the left, choose Workflow Cluster > Cluster Monitoring.
On the Workflow Monitoring tab, click the Argo workflow monitoring dashboard to view the running status of workflows.

Disable Prometheus Service

Shut down from the console

Log on to the ACK One console. In the navigation pane on the left, choose Workflow Cluster > Cluster Monitoring.
On the Cluster Monitoring page, click Disable Feature on the right. Then, click OK to disable monitoring for the workflow cluster.

Shut down using a command

Run the following command to disable Prometheus Service.

aliyun adcp UpdateHubClusterFeature --MonitorEnabled false --ClusterId <cluster id>