Help Center/ Ubiquitous Cloud Native Service/ User Guide/ Observability/ Logging/ Collecting Control Plane Component Logs
Updated on 2025-02-14 GMT+08:00
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Collecting Control Plane Component Logs

Billing

LTS does not charge you for creating log groups and offers a free quota for log collection every month. You pay only for log volume that exceeds the quota.

Constraints

  • Huawei Cloud clusters must be of v1.21.7-r0 or later, v1.23.5-r0 or later, or v1.25.
  • There is required LTS resource quota. For details about the default LTS quota, see Basic Resources.

Control Plane Components

There are three types of control plane logs. Each log stream corresponds to a component of the Kubernetes control plane. To learn more about these components, see Kubernetes Components.

Table 1 Control plane components

Log Type

Component

Log Stream

Description

Control plane component logs

kube-apiserver

kube-apiserver-{{clusterID}}

It exposes Kubernetes APIs. For more information, see kube-apiserver.

kube-controller-manager

kube-controller-manager-{{clusterID}}

It manages controllers and embeds the core control loops shipped with Kubernetes. For more information, see kube-controller-manager.

kube-scheduler

kube-scheduler-{{clusterID}}

It manages when and where to run Pods in your cluster. For more information, see kube-scheduler.

Enabling Log Collection for an On-Premises Cluster

The Cloud Native Log Collection add-on is not installed in a cluster.

When installing the Cloud Native Log Collection add-on, you can select control plane component logs to create a default log collection policy, so that this add-on collects component logs and reports them to LTS. For details about the add-on installation, see Log Collection.

The Cloud Native Log Collection add-on has been installed in a cluster.

  1. Access the fleet console. In the navigation pane, choose Container Clusters. Then, click the cluster name to access the cluster console. In the navigation pane, choose Logging.
  2. In the upper right corner, click View Log Collection Policies. All log collection policies in the current cluster are displayed.
  3. Click Create Log Policy and configure parameters as required.

    Policy Template: If no log collection policy is enabled during add-on installation or the log collection policy is deleted, you can use this option to create a default log collection policy.

    Figure 1 Creating a log collection policy
  4. On the Logging page, click the Control Plane Logs tab. Select the log stream configured in the log policy to view the logs reported to LTS.
    Figure 2 Viewing logs

Enabling Log Collection for a Huawei Cloud Cluster

Enabling log collection during cluster creation

  1. Log in to the CCE console.
  2. Click Buy Cluster from the top menu.
  3. On the Select Add-on page, select Cloud Native Log Collection.

  4. On the Add-on Configuration page, select Custom Installation for Cloud Native Log Collection and then select control plane logs.

    • Stdout logs: If this option is enabled, a log collection policy named default-stdout will be created, which will report stdout logs from all namespaces to LTS.
    • Kubernetes events: If this option is enabled, a log collection policy named default-event will be created, which will report Kubernetes events from all namespaces to LTS.
  5. Click Next: Confirm configuration. On the displayed page, click Submit.

Enabling log collection for an existing cluster

  1. Access the fleet console. In the navigation pane, choose Container Clusters. Then, click the cluster name to access the cluster console. In the navigation pane, choose Logging.
  2. Click the Control Plane Logs tab, select the control plane components whose logs need to be collected, and click Enable.

Viewing Control Plane Component Logs

Viewing control plane component logs on the UCS console

  1. Access the fleet console. In the navigation pane, choose Container Clusters. Then, click the cluster name to access the cluster console. In the navigation pane, choose Logging.
  2. Click the Control Plane Logs tab and select the component whose logs to be viewed. For details about available control plane log types, see Control Plane Components. For details about operations on LTS, see LTS User Guide.

Viewing control plane component logs on the LTS console

  1. Log in to the LTS console and choose Log Management.
  2. Query the log group by cluster ID and click the log group name to view the log stream. For details, see LTS User Guide.

Disabling Log Collection of a Huawei Cloud Cluster

  1. Access the fleet console. In the navigation pane, choose Container Clusters. Then, click the cluster name to access the cluster console. In the navigation pane, choose Logging.
  2. Click the Control Plane Logs tab, click Configure Control Plane Component Logs in the upper right corner, and modify the log settings.

  3. Determine whether to enable logging for each component and click OK.

    After you disable control plane component logging, logs are no longer written to the original log stream, but existing logs will not be deleted and expenditures may be incurred for this.

Parent topic: Logging