Overview

Last updated: 2019-09-24 10:56:40

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A cluster is a collection of cloud resources required for containers to run, including several CVMs, load balancers and other Tencent Cloud resources.

Cluster Information

Cluster Type: Container clusters in VPCs are supported.

Cluster Configuration: When creating a cluster, you can configure CVM model, operating system, system disk and data disk size, login password, etc.

Cluster Structure: Prepaid and postpaid CVMs are supported.

Cluster Management

You can create clusters, scale up/down nodes, delete clusters and work with clusters directly by using Kubernetes APIs.

Retaining Resources for Cluster

Some resources are retained for each node in a cluster to keep Kubernetes running normally. Specific rules are as follows:

CPU

Total CPU capacity on node (in core) 1 2 4 8 16 32
Retained CPU capacity on node (in core) 0.06 0.07 0.08 0.09 0.11 0.14

Memory

Total memory capacity on node (in Gib) 1 2 4 8 12 16 24 32 48
Retained memory capacity on node (in Mib) 160 320 420 830 1200 1300 1660 1830 2420

Moreover, an extra 100 Mib of memory is retained for each node to avoid the OOM error.

After log collection feature is enabled for a cluster, about 0.3 core of CPU and 250 Mib of memory are used to run log collection plug-in.

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