ack-kubernetes-cronhpa-controller is a Kubernetes Horizontal Pod Autoscaler (HPA) controller that scales pods on a cron-based schedule. Unlike standard HPA, which scales in response to real-time metrics, Cron Horizontal Pod Autoscaler (CronHPA) lets you pre-scale workloads at predictable times — for example, scaling up before a known traffic surge or scaling down during off-peak hours.
CronHPA scales subresources in Kubernetes objects, including Deployments and StatefulSets. The subresources must belong to open source projects on GitHub.
Usage notes
For configuration details and usage instructions, see CronHPA.
Release notes
December 2023
| Version | Image address | Release date | Description | Impact |
|---|---|---|---|---|
| v1.4.4-d9f7d25-aliyun | registry-cn-beijing-vpc.ack.aliyuncs.com/acs/kubernetes-cronhpa-controller:v1.4.4-d9f7d25-aliyun | 2023-12-15 | Improved CronHPA Job validation to prevent delays in cleaning up CronHPA Jobs. | No impact on workloads. |
March 2023
| Version | Image address | Release date | Description | Impact |
|---|---|---|---|---|
| v1.4.3-8b73ecb-aliyun | registry-cn-beijing-vpc.ack.aliyuncs.com/acs/kubernetes-cronhpa-controller:v1.4.3-8b73ecb-aliyun | 2023-03-24 | Updated dependencies and optimized memory consumption. | No impact on workloads. |
February 2023
| Version | Image address | Release date | Description | Impact |
|---|---|---|---|---|
| v1.4.2-b08beb8-aliyun | registry-cn-beijing-vpc.ack.aliyuncs.com/acs/kubernetes-cronhpa-controller:v1.4.3-8b73ecb-aliyunv1.4.2-b08beb8-aliyun | 2023-02-27 | Fixed a concurrency conflict that occurred when scheduled tasks ran simultaneously. | No impact on workloads. |
July 2022
| Version | Image address | Release date | Description | Impact |
|---|---|---|---|---|
| v1.4.1-277c7d5-aliyun | registry.cn-hangzhou.aliyuncs.com/acs/kubernetes-cronhpa-controller:v1.4.1-277c7d5-aliyun | 2022-07-23 | Added retry logic for tasks that were not executed due to timeouts. | No impact on workloads. |
May 2021
| Version | Image address | Release date | Description | Impact |
|---|---|---|---|---|
| v1.4.0-a2f4954d-aliyun | registry.cn-hangzhou.aliyuncs.com/acs/kubernetes-cronhpa-controller:v1.4.0-a2f4954d-aliyun | 2021-05-27 | Fixed an authorization issue related to elastic workloads. | No impact on workloads. |
December 2020
| Version | Image address | Release date | Description | Impact |
|---|---|---|---|---|
| v1.4.0-fc4f6060-aliyun | registry.cn-hangzhou.aliyuncs.com/acs/kubernetes-cronhpa-controller:v1.4.0-fc4f6060-aliyun | 2020-12-18 | Supported basic CronHPA features and HPA compatibility. | No impact on workloads. |