Updated on 2024-12-18 GMT+08:00

Notes and Constraints

Use Restrictions

  • Worker nodes in CCE Autopilot clusters are fully hosted. For this reason, certain features like hostPath and hostNetwork, which rely on node features, are not supported.

    Unavailable Feature

    Description

    Recommended Alternative Solution

    DaemonSet

    Deploys pods on each node.

    Deploy multiple images in a pod using sidecars.

    Setting hostPath in a pod

    Mounts local files of a node to a container.

    Use emptyDir or cloud storage of any type.

    Setting hostNetwork in a pod

    Maps a node port to a container port.

    Use Services of the LoadBalancer type.

    NodePort Service

    Makes a node port open to access containers.

    Use Services of the LoadBalancer type.

  • When a CCE Autopilot cluster is used, each pod in the workload provides 30 GiB of free disk space by default (maximum IOPS of 2,500 and maximum burst IOPS of 16,000). In addition to the resources reserved for the OS and CCE platform, the total available space for images, containers, and temporary storage is about 20 GiB. If the container image is too large (generally greater than 5 GiB) or a large number of files are created in the container root directory or temporary storage, you are advised to increase the temporary storage capacity of the pod. For details, see "Increasing the Ephemeral Storage Space of a Pod" in the CCE Autopilot User Guide.
  • By default, no more than 500 pods can be created in a CCE Autopilot cluster. The add-on instances may occupy some pod quotas. You need to plan the pod quota appropriately. To increase the quota, submit a service ticket.
  • If a CCE Autopilot cluster is used, workloads that use Arm images are not supported.

Cloud Product Quota Limits

The table below shows the maximum number of resources that can be created per account in a region.

Category

Item

Quota

CCE cluster

Total number of clusters

50

VPC

VPCs

5

Subnets

100

Security groups

100

Security group rules

5000

Routes per route table

100

Routes per VPC

100

VPC peering connections

50

Network ACLs

200

ELB

Load balancers

50

Load balancer listeners

100

Load balancer certificates

120

Load balancer forwarding policies

500

Load balancer backend server groups

500

Load balancer backend servers

500

VPCEP

Endpoints

50

DNS

Private zones

50

DNS record sets

500

If your current quota is insufficient, submit a service ticket to request an increase.