CNCF Live Webinar: Kubernetes 1.23

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What’s New in Kubernetes 1.23

© 2022 Cloud Native Computing Foundation
2
Karen Chu
1.23 Communications Lead
@karenhchu
Presenters
Xander Grzywinski
1.23...

© 2022 Cloud Native Computing Foundation
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Agenda
★ 1.24 Release Updates
★ 1.23 Highlights
★ SIG Updates
★ Q&A

1.24 Release Updates

© 2022 Cloud Native Computing Foundation
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Overview
★ 1.24 Release Timeline
○ Start Date: Monday, January 10th 2022
○ Enha...

1.23 Highlights

© 2022 Cloud Native Computing Foundation
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Overview
★ 47 total enhancements tracked in 1.23
○ 11 Stable Enhancements
○ 16 ...

© 2022 Cloud Native Computing Foundation
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★ Dual-stack IPv4/IPv6 Networking
★ PodSecurity Admission
★ HorizontalPodAutosc...

© 2022 Cloud Native Computing Foundation
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★ TTL Controller
★ Simplified Multi-Point Plugin Configuration for
Scheduler
★...

© 2022 Cloud Native Computing Foundation
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★ Skip Volume Ownership Change
★ Allow CSI Drivers to Opt-In Volume and
Permis...

© 2022 Cloud Native Computing Foundation
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★ Expression Validation for CRD
★ OpenAPI v3
★ Server Side Field Validation
★ ...

SIG Updates

API Machinery

© 2022 Cloud Native Computing Foundation
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Priority and Fairness for API Server Requests
● Extends the API server’s overl...

© 2022 Cloud Native Computing Foundation
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Custom Resource Definition (CRD) Validation
Expression Language
● Admission we...

© 2022 Cloud Native Computing Foundation
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Add Server-Side Unknown Field Validation
● This feature adds the ability to op...

© 2022 Cloud Native Computing Foundation
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OpenAPI Enum Types
● This feature defines Enum Types support to
detect Enum Ty...

© 2022 Cloud Native Computing Foundation
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OpenAPI V3
● OpenAPI v3 is more transparent and
expressive. With OpenAPI v2 se...

Apps

© 2022 Cloud Native Computing Foundation
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CronJobs
● CronJobs have been stable since 1.21,
the work in 1.23 is cleanup w...

© 2022 Cloud Native Computing Foundation
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TTL After Finish Controller
● This features adds a TTL controller to clean
up ...

© 2022 Cloud Native Computing Foundation
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Auto Remove PVCs Created by StatefulSets
● PVCs created automatically by the
S...

© 2022 Cloud Native Computing Foundation
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Job Tracking Without Lingering Pods
● The current Job controller currently rel...

© 2022 Cloud Native Computing Foundation
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minReadySeconds on StatefulSets
● This feature allows a user to specify
minimu...

© 2022 Cloud Native Computing Foundation
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Add Count of Ready Pods in Job Status
● This feature adds a field `ready` that...

Auth

© 2022 Cloud Native Computing Foundation
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PodSecurity Admission (PSP replacement)
● Replaces Pod Security Policies that ...

Autoscaling

© 2022 Cloud Native Computing Foundation
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Graduate HorizontalPodAutoscaler (HPA) API to GA
● This feature promotes the
H...

CLI

© 2022 Cloud Native Computing Foundation
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kubectl events
● This feature adds a new command,
`kubectl events`, that adds ...

Cluster Lifecycle

© 2022 Cloud Native Computing Foundation
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● This feature simplifies the naming of the
default kubelet configuration Conf...

Instrumentation

© 2022 Cloud Native Computing Foundation
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● This feature defines a standard structure
for Kubernetes log messages, adds
...

© 2022 Cloud Native Computing Foundation
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Deprecate klog Specific Flags in Kubernetes
Components
● This feature deprecat...

Network

© 2022 Cloud Native Computing Foundation
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IPv4/IPv6 Dual-Stack Support
● This feature adds IPv4/IPv6 dual-stack
support ...

© 2022 Cloud Native Computing Foundation
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Namespace Scoped Ingress Class Parameters
● This feature adds a new Scope and
...

© 2022 Cloud Native Computing Foundation
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Topology Aware Hints
● This feature adds an automatic topology
aware hinting m...

Node

© 2022 Cloud Native Computing Foundation
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Ephemeral Containers (kubectl debug)
● This feature adds a mechanism to run an...

© 2022 Cloud Native Computing Foundation
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Kubelet CRI Support
● The Container Runtime Interface (CRI) v1
API is promoted...

© 2022 Cloud Native Computing Foundation
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cAdvisor-less, CRI-full Container and Pod Stats
● This feature enhances the CR...

© 2022 Cloud Native Computing Foundation
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Extend Pod Resources API to Report Allocatable
Resources
● This feature adds t...

© 2022 Cloud Native Computing Foundation
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CPU Manager Policies
● This feature guarantees that no physical
core is shared...

© 2022 Cloud Native Computing Foundation
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Pod Priority Based Graceful Node Shutdown
● Kubelet graceful shutdown should t...

© 2022 Cloud Native Computing Foundation
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gRPC Probe to Pod
● This feature adds the use of gRPC to
Liveness, Readiness, ...

© 2022 Cloud Native Computing Foundation
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CPUManager policy option to distribute CPUs across
NUMA nodes
● This feature a...

Scheduling

© 2022 Cloud Native Computing Foundation
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Scheduler Component Config API
● This feature provides a configuration API
tha...

© 2022 Cloud Native Computing Foundation
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Simplified Multi-point Plugin Configuration for
Scheduler
● This feature defin...

© 2022 Cloud Native Computing Foundation
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Allow Updating Scheduling Directives of Jobs
● This feature makes node affinit...

Security

© 2022 Cloud Native Computing Foundation
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Defend Against Logging Secrets via Static Analysis
● Taint propagation analysi...

Storage

© 2022 Cloud Native Computing Foundation
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Skip Volume Ownership Change (FSGroup)
● This feature allows the user to speci...

© 2022 Cloud Native Computing Foundation
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AWS EBS In-Tree to CSI Driver Migration
● This feature migrates the internals ...

© 2022 Cloud Native Computing Foundation
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GCE PD In-Tree to CSI Driver Migration
● This feature migrates the internals o...

© 2022 Cloud Native Computing Foundation
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Azure Disk In-Tree to CSI Driver Migration
● This feature migrates the interna...

© 2022 Cloud Native Computing Foundation
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Config FSGroup Policy in CSI Driver object
● This feature allows CSI drivers t...

© 2022 Cloud Native Computing Foundation
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Generic Inline Ephemeral Volumes
● This feature allows any existing storage
dr...

© 2022 Cloud Native Computing Foundation
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Recovering From Resize Failures
● A PVC may be expanded to an
unsupported size...

© 2022 Cloud Native Computing Foundation
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Delegate FSGroup to CSI Driver instead of Kubelet
● When fsgroup is specified,...

© 2022 Cloud Native Computing Foundation
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Portworx File In-Tree to CSI Driver Migration
● This feature migrates the inte...

© 2022 Cloud Native Computing Foundation
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Always Honor Reclaim Policy
● If the PersistentVolume (PV) is deleted
before t...

© 2022 Cloud Native Computing Foundation
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Ceph RBD In-Tree Provisioner to CSI Driver Migration
● This feature migrates t...

Testing

© 2022 Cloud Native Computing Foundation
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Reduce Kubernetes Build Maintenance
● This feature reduces Kubernetes build
ma...

Windows

© 2022 Cloud Native Computing Foundation
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Windows Privileged Containers
● Some functionality in Kubernetes requires
priv...

Release Team Shadow Program

© 2022 Cloud Native Computing Foundation
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Release Team Shadow Program
★ Release Team Roles
○ Release Team Lead
○ Enhance...

Questions?

Thank You

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