介绍

goldilocks是一个开源工具，帮助确定资源的resource request/limit

下载

  • 下载helm chart
helm repo add fairwinds-stable https://charts.fairwinds.com/stable
helm repo update fairwinds-stable
helm pull fairwinds-stable/goldilocks --version 9.0.1

配置

  • values文件
controller:
  flags:
    on-by-default: true
dashboard:
  flags:
    on-by-default: true

  ingress:
    enabled: true
    ingressClassName: nginx-default
    hosts:
    - host: goldilocks.hanxux.local
      paths:
      - path: /
        type: ImplementationSpecific
    tls:
      - secretName: goldilocks-tls-cert-secret
        hosts:
          - goldilocks.hanxux.local
    annotations:
      nginx.ingress.kubernetes.io/auth-url: "http://oauth2-proxy.oauth2-proxy.svc.cluster.local/oauth2/auth"
      nginx.ingress.kubernetes.io/auth-signin: "https://oauth2proxy.hanxux.local/oauth2/start?rd=https%3A%2F%2Fgoldilocks.hanxux.local"

在goldilocks controller的配置下添加args：

  • --on-by-default - create VPAs in all namespaces
  • --include-namespaces - create VPAs in these namespaces, in addition to any that are labeled
  • --exclude-namespaces - when --on-by-default is set, exclude this comma-separated list of namespaces
  • --ignore-controller-kind - comma-separated list of controller kinds to ignore from automatic VPA creation. For example: --ignore-controller-kind=Job,CronJob

安装

helm upgrade -i goldilocks fairwinds-stable/goldilocks --namespace goldilocks \
--history-max 5 \
--values goldilocks/values.yaml \
--create-namespace \
--version $VERSION

使用

UI

首先在本地hosts文件中添加goldilocks.hanxux.local的映射，浏览器访问goldilocks.hanxux.local即可看到UI

生成recommendation

生成recommendation的原理：goldilock从vpa的recommender读取资源值

How Does Goldilocks Generate Recommendations

切换updateMode

默认情况下是采用off mode，可以通过给某个namespace加label来对其中的pod改用Auto模式：Goldilocks Advanced Usage