Built on the open-source Metrics Server, this offline monitoring component collects pod CPU and memory metrics and exposes them through the Metrics API for HPA scaling and basic resource monitoring.
Metrics Server
, collects pod CPU and memory metrics and exposes them via the Metrics API for HPA scaling.
Release notes
June 2026
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.14-079483b-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.14-079483b-aliyun |
June 2026 |
Aligned the calculation of allocated container resources (requests) with the bin-packing logic of the Kubernetes scheduler. Fixed an issue where the allocated node resources displayed for init containers and sidecar containers did not match the scheduler's actual allocation. |
No impact on workloads. |
February 2026
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.12-08c15e8-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.12-08c15e8-aliyun |
February 2026 |
- Added basic resource monitoring for Hybrid nodes in hybrid cloud node pools.
- Added support for displaying the resource usage of each workload in the workload list of the ACK console through an aggregation API.
|
No impact on workloads. |
January 2024
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.9.7-85b3699-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.9.7-85b3699-aliyun |
January 2024 |
- Optimized monitoring performance for large-scale clusters.
- Stabilized HPA scaling during rolling updates. To enable, set
--enable-hpa-rolling-update-skipped=true. See FAQ about auto scaling.
|
No impact on workloads. |
June 2023
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.9.5-1e8461a-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.9.5-1e8461a-aliyun |
June 2023 |
- Improved component security.
- Reduced unnecessary log output.
|
No impact on workloads. |
May 2023
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.9.4-ff225cd-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.9.4-ff225cd-aliyun |
May 2023 |
Compatible with ACK clusters running Kubernetes 1.26. |
No impact on workloads. |
March 2023
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.9.3-ff225cd-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.9.3-ff225cd-aliyun |
March 2023 |
Fixed: metrics not collected from virtual nodes in ACK Edge clusters. |
No impact on workloads. |
| v0.3.9.3-628a248-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.9.3-628a248-aliyun |
February 2023 |
Fixed: CPU metrics spike when monitoring data collection is interrupted. |
No impact on workloads. |
July 2022
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.9-d554015-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.9-d554015-aliyun |
July 2022 |
- Patched container image vulnerabilities.
- Compatible with ACK clusters running Kubernetes 1.22.
|
No impact on workloads. |
May 2022
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.8.7-307cf45-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.8.5-307cf45-aliyun |
May 2022 |
Compatible with ACK clusters running Kubernetes 1.22. |
No impact on workloads. |
February 2022
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.8.6-307cf45-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.8.5-307cf45-aliyun |
February 2022 |
Compatible with ACK clusters running Kubernetes 1.22 and earlier. |
No impact on workloads. |
May 2021
| Version |
Image address |
Release date |
Description |
Impact |
| v0.3.8.5-307cf45-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.3.8.5-307cf45-aliyun |
May 2021 |
- Compatible with ACK clusters running Kubernetes 1.20 and earlier.
- Pod basic resource monitoring now supported by the latest CloudMonitor.
|
No impact on workloads. |
April 2021
| Version |
Image address |
Release date |
Description |
Impact |
| v0.2.2-b4bf266-aliyun |
registry.{REGION}.aliyuncs.com/acs/metrics-server:v0.2.2-b4bf266-aliyun |
April 2021 |
- Added metric collection for Windows and Linux nodes.
- Added scaling periods: 15, 20, 30, and 60 seconds.
- Fixed: HPA adds excess pods during rolling updates.
|
Update to the latest version. |