Usage notes of log collection for control plane components in professional ACK clusters - Simple Log Service

Log Service and Container Service for Kubernetes (ACK) jointly launched the log collection feature for control plane components. You can use the feature to deliver the logs of control plane components in a professional ACK cluster to Log Service for query and analysis. This topic describes the assets and billing of the log collection feature.

Assets

Dedicated project and dedicated Logstores

Important

Before you disable log collection, do not delete the related Log Service project and Logstore. Otherwise, logs cannot be delivered to Log Service.
If you have enabled the pay-by-ingested-data billing mode, Log Service creates a dedicated Logstore that uses the pay-by-ingested-data billing mode by default. If you want to switch the billing mode from pay-by-ingested-data to pay-by-feature, modify the configurations of the Logstore. For more information, see Manage a logstore.

If you select an existing project when you enable log collection for the control plane components in a professional ACK cluster, Log Service creates multiple dedicated Logstores in the project, as shown in the following table.

If you select Create Project when you enable log collection for the control plane components in a professional ACK cluster, Log Service creates a project named k8s-log-<Cluster ID> in the region where the cluster resides and multiple dedicated Logstores in the project, as shown in the following table.

Logstore	Component	Description
`apiserver-<Cluster ID>`	kube-apiserver	Stores the logs of the kube-apiserver component. kube-apiserver is used to expose the Kubernetes API. For more information, see kube-apiserver.
`ccm-<Cluster ID>`	Cloud Controller Manager	Stores the logs of the Cloud Controller Manager component. The CCM component allows you to integrate Kubernetes with Alibaba Cloud services, such as Classic Load Balancer (CLB) and Virtual Private Cloud (VPC). CLB is formerly known as Server Load Balancer (SLB). CCM manages the service features, such as load balancing and cross-node communication. For more information, see CCM.
`scheduler-<Cluster ID>`	kube-scheduler	Stores the logs of the kube-scheduler component. kube-scheduler is the default scheduler of a Kubernetes cluster. For more information, see kube-scheduler.
`kcm-<Cluster ID>`	kube-controller-manager	Stores the logs of the kube-controller-manager component. kube-controller-manager is the control center of a Kubernetes cluster and runs controller processes. For more information, see kube-controller-manager.

Dedicated dashboards
After you enable the feature, Log Service does not generate dedicated dashboards. You can create a custom dashboard to visualize query results. For more information, see Create a dashboard.

Billing

You are not charged for the log collection feature for control plane components in professional ACK clusters.
If the billing mode of the related Logstore is pay-by-feature, you are charged based on the storage usage, read traffic, number of requests, data transformation, and data shipping after the logs of control plane components in a professional ACK cluster are delivered to Log Service. For more information, see Billable items of pay-by-feature.
If the billing mode of the related Logstore is pay-by-feature, you are charged only for the read traffic over the Internet after the logs of control plane components in a professional ACK cluster are delivered to Log Service. For more information, see Billable items of pay-by-ingested-data.

Enable log collection for control plane components in a professional ACK cluster

Enable log collection when you create a cluster

Log on to the ACK console.
On the Clusters page, click Create Kubernetes Cluster.
In the Component Configurations step of the Create Cluster page, select Enable in the Log Collection for Control Plane Components section and select a project. For more information about other parameters, see Create an ACK managed cluster.

Enable log collection for an existing cluster

Log on to the ACK console.
On the Clusters page, click the cluster that you want to manage.
In the left-side navigation pane, choose Operations > Log Center.
On the Logs of Control Plane Components tab, select a project and click Enable Component Log Collection.
You can select an existing project or create a project.

Related operations

Operation	Description
View logs	You can view logs in the ACK console or Log Service console. For more information, see Query the logs of control plane components.
Disable log collection	On the Log of Control Plane Components tab, click Close. For more information, see Disable the log collection feature for control plane components. Important If you disable the log collection feature, the project and pushed logs are not automatically deleted. To prevent additional fees, you can delete the corresponding project that is used to store logs in the Log Service console after you disable the log collection feature. For more information, see Delete a project.

What to do next

After the logs of control plane components in a professional ACK cluster are delivered to Log Service, you can query, analyze, download, ship, and transform the logs in the Log Service console. You can also create alert rules for the logs. For more information, see Common operations on logs of Alibaba Cloud services.