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Cluster Autoscaler 1.24.0
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@MaciekPytel MaciekPytel released this 16 May 14:57
· 86 commits to cluster-autoscaler-release-1.24 since this release
cluster-autoscaler-1.24.0
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Changelog

Known issues

  • Importing Cluster Autoscaler 1.24.0 code via go mod may lead to compilation errors (#4875). This is only relevant to other projects importing CA code and has no impact on anyone using official CA image.

General

  • CA would no longer block scale-down in entire cluster while some pods are waiting for booting up nodes. This allows scale-down in some NodeGroups to happen, while other NodeGroups are scaling-up (#4661).
  • Introduced gRPC expander (#4452).
  • Introduced debugging snapshot feature (#4552).
  • CA can now continue working even if it is unable to remove some of the VMs that failed to register in the cluster (#4810).
  • Added --node-info-cache-expire-time flag that controls how long node templates are cached (#4669).
  • Fixed an issue where large number of pods managed by a single controller with slightly different pod spec (ex. pods created by Jobs using completionMode: Indexed) could lead to extremely slow CA reaction (#4724).
  • Fixed multiple bugs related to CA not properly accounting for daemonsets in scale-up calculations (#4641, #4761).
  • Status ConfigMap now contains additional information about nodes with unready resources.

AWS

  • Abort early if ASG has no capacity. This allows CA retry a different ASG without waiting for 15 minute timeout (#4489).
  • Added support for colon (:) in the AWS ASG discovery tag keys (#4636)
  • Updated list of supported instance types (#4683).

Azure

  • Added support for NP-series VMs (#4648).
  • Updated list of instance types (#4818).

Cluster API

  • Fixed a bug where CA would only delete one node, when it intended to remove multiple ones (#4634).

Equinix Metal

  • Renamed provider from Packet (#4580).

Exoscale

  • Refactored the cloud provider to support both plain Instance Pools and SKS Nodepools scaling (#4247).

External gRPC

  • Added External gRPC provider (#4654).

GCE

  • Increased parallelism of fetching MIG instance templates, which should improve CA performance in clusters with very large number of MIGs (#4621).
  • Reduced the number of GCE API calls during large scale-downs (#4660).

OracleCloud

TencentCloud

  • Added TencentCloud provider (#4639).

Vultr

  • Added Vultr provider (#4653).

Images

  • k8s.gcr.io/autoscaling/cluster-autoscaler:v1.24.0
  • k8s.gcr.io/autoscaling/cluster-autoscaler-arm64:v1.24.0
  • k8s.gcr.io/autoscaling/cluster-autoscaler-amd64:v1.24.0
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