openkruise/kruise v0.8.0

on GitHub

To install or upgrade to the latest version, see installation.

Changes since v0.7.0

Breaking changes

1. The flags for kruise-manager must start with -- instead of -. If you install Kruise with helm chart, ignore this.
2. SidecarSet has been refactored. Make sure there is no SidecarSet being upgrading when you upgrade Kruise,
   and read the latest doc for SidecarSet.
3. A new component named kruise-daemon comes in. It is deployed in kruise-system using DaemonSet, defaults on every Node.

Now Kruise includes two components:

• kruise-controller-manager: contains multiple controllers and webhooks, deployed using Deployment.
• kruise-daemon: contains bypass features like image pre-download and container restart in the future, deployed using DaemonSet.

New CRDs: NodeImage and ImagePullJob

Official doc

Kruise will create a NodeImage for each Node, and its spec contains the images that should be downloaded on this Node.

Also, users can create an ImagePullJob CR to declare an image should be downloaded on which nodes.

apiVersion: apps.kruise.io/v1alpha1
kind: ImagePullJob
metadata:
  name: test-imagepulljob
spec:
  image: nginx:latest
  completionPolicy:
    type: Always
  parallelism: 10
  pullPolicy:
    backoffLimit: 3
    timeoutSeconds: 300
  selector:
    matchLabels:
      node-label: xxx

SidecarSet

Official doc

• Refactor the controller and webhook for SidecarSet:
  • For spec:
    • Add namespace: indicates this SidecarSet will only inject for Pods in this namespace.
    • For spec.containers:
      • Add podInjectPolicy: indicates this sidecar container should be injected in the front or end of containers list.
      • Add upgradeStrategy: indicates the upgrade strategy of this sidecar container (currently it only supports ColdUpgrade)
      • Add shareVolumePolicy: indicates whether to share other containers' VolumeMounts in the Pod.
      • Add transferEnv: can transfer the names of env shared from other containers.
    • For spec.updateStrategy:
      • Add type: contains NotUpdate or RollingUpdate.
      • Add selector: indicates only update Pods that matched this selector.
      • Add partition: indicates the desired number of Pods in old revisions.
      • Add scatterStrategy: defines the scatter rules to make pods been scattered during updating.

CloneSet

• Add currentRevision field in status.
• Optimize CloneSet scale sequence.
• Fix condition for pod lifecycle state from Updated to Normal.
• Change annotations inplace-update-state => apps.kruise.io/inplace-update-state, inplace-update-grace => apps.kruise.io/inplace-update-grace.
• Fix maxSurge calculation when partition > replicas.

UnitedDeployment

• Support Deployment as template in UnitedDeployment.

Advanced StatefulSet

• Support lifecycle hook for in-place update and pre-delete.

BroadcastJob

• Add PodFitsResources predicates.
• Add --assign-bcj-pods-by-scheduler flag to control whether to use scheduler to assign BroadcastJob's Pods.

Others

• Add feature-gate to replace the CUSTOM_RESOURCE_ENABLE env.
• Add GetScale/UpdateScale into clientsets for scalable resources.
• Support multi-platform build in Makefile.
• Set different user-agent for controllers.

Thanks to all our contributors! 😊