Pixiu Autoscaler
pixiu-autoscaler 通过为 deployment / statefulset 添加 annotations 的方式，自动维护对应 HorizontalPodAutoscaler 的生命周期.
Prerequisites
在 kubernetes 集群中， 需要先完成 Metrics Server 组件的安装，请参考 Metrics Server
kubectl top node/pod 验证 Metrics Server 已成功安装
# kubectl top node
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
kubez 333m 16% 1225Mi 65%
# kubectl top pod
NAME CPU(cores) MEMORY(bytes)
test1-54cd855b77-q67h6 1m 3MiInstalling
The steps can be found in Installation
Getting Started
在 deployment / statefulset 的 annotations 中添加所需注释即可自动创建对应的 HPA
apiVersion: apps/v1
kind: Deployment
metadata:
annotations:
...
# 可选，默认 minReplicas 为 1
hpa.caoyingjunz.io/minReplicas: "2" # MINPODS
# 必填
hpa.caoyingjunz.io/maxReplicas: "6" # MAXPODS
...
# 支持多种 TARGETS 类型，若开启，至少选择一种，可同时支持多个 TARGETS
# CPU, in cores. (500m = .5 cores)
# Memory, in bytes. (500Gi = 500GiB = 500 * 1024 * 1024 * 1024)
# 使用率 examples
cpu.hpa.caoyingjunz.io/targetAverageUtilization: "80"
memory.hpa.caoyingjunz.io/targetAverageUtilization: "60"
# 使用值 examples
cpu.hpa.caoyingjunz.io/targetAverageValue: 600m
memory.hpa.caoyingjunz.io/targetAverageValue: 60Mi
# TODO: prometheus 暂不支持
...
name: test1
namespace: default
...pixiu-autoscaler-controller 会根据注释的变化，自动同步 HPA 的生命周期.
Copyright 2019 caoyingjun ([email protected]) Apache License 2.0