Kubernetes 1.36 killed your webhooks. Here are 10 other things it quietly changed.

It sounds like Kubernetes version 1.36 introduces several significant improvements and features aimed at enhancing observability, security, resource management, and operational efficiency. Here's a summary of the key points:

Key Features in Kubernetes v1.36

1. HPA Scale-to-Zero

• Feature: Support for HPA (Horizontal Pod Autoscaler) to scale down pods to zero replicas when there is no demand.
• Configuration:

  yaml
   
  1spec:
  2  minReplicas: 0
  3  maxReplicas: 50
  4  metrics:
  5    - type: External
  6      external:
  7        metric:
  8          name: sqs_queue_length
  9        target:
  10          type: AverageValue
  11          value: "10"

• Benefits: Enables serverless-like behavior without the overhead of a managed FaaS layer, allowing pods to scale down when idle and spin up again as needed.

2. Node Log Queries

• Feature: Ability to query logs directly from nodes via kubectl.
• Usage:

  bash
   
  1kubectl get --raw "/api/v1/nodes/<node-name>/proxy/logs/kubelet"

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