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    Container Compute Service:CoreDNS

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    Container Compute Service:CoreDNS

    Last Updated:Oct 16, 2025

    CoreDNS is a DNS-based service discovery component, which can be installed in ACS clusters to conduct service discovery. The topic introduces CoreDNS and describes the usage notes and release notes for CoreDNS.

    Introduction

    CoreDNS provides DNS resolution capabilities within Kubernetes clusters. ACK maintains a mapping between CoreDNS versions and Kubernetes versions. When you create or update a Kubernetes cluster, the CoreDNS version that is installed or updated depends on the Kubernetes version of the cluster. For more information about the mapping, see CoreDNS version in Kubernetes.

    Usage notes

    For more information about the features of CoreDNS and how to use CoreDNS, see DNS policies and domain name resolution.

    Release notes

    Managed version

    Version number

    Modification Time

    Description

    Applicable cluster

    v1.12.1.2

    2025-10-10

    • Optimizations:

      • Updated to community version v1.12.1.

      • In clusters where the IPv6 dual-stack feature is disabled, queries for AAAA records directly return nodata.

      • The multisocket plugin is enabled by default to improve performance.

    ACS clusters that run Kubernetes 1.26 or later.

    v1.11.3.2-f57ea7ed6-aliyun

    2024-11-21

    • A new CoreDNS version is released.

    • Kubernetes events are generated if errors occur when configurations are synchronized to CoreDNS.

    ACS clusters that run Kubernetes 1.26 or later.

    v1.9.3.21-1f1e73c2a-aliyun

    2024-11-04

    The issue that the default address of the upstream DNS server is not PrivateZone is fixed.

    ACS clusters that run Kubernetes 1.26 or later.

    v1.9.3.20-8fd1da054-aliyun

    2024-09-13

    Managed CoreDNS can be configured using a CustomDNSConfig CR. For more information, see Configure custom parameters for managed CoreDNS.

    ACS clusters that run Kubernetes 1.26 or later.

    v1.9.3.10-7dfca203-aliyun

    2023-04-03

    • Pods can be scheduled based on zone anti-affinity.

    • The possibility of pod eviction in scenarios where auto scaling of nodes is enabled is reduced.

    ACS clusters that run Kubernetes 1.26 or later.

    Unmanaged version

    Version number

    Release date

    Description

    Applicable cluster

    v1.9.3.10-7dfca203-aliyun

    2023-04-03

    • Pods can be scheduled based on zone anti-affinity.

    • The possibility of pod eviction in scenarios where auto scaling of nodes is enabled is reduced.

    ACS clusters that run Kubernetes 1.26 or later.