Addon-manager

附加组件管理器（Addon-manager）是运行在 Kubernetes 集群 Master 节点、用来管理附加组件（Addons）的服务。它管理着 $ADDON_PATH （默认是 /etc/kubernetes/addons/ ）目录中的所有扩展，保证它们始终运行在期望状态。

Addon-manager 支持两种标签

将下面的 YAML 存入所有 Master 节点的 /etc/kubernetes/manifests/kube-addon-manager.yaml 文件中：

apiVersion: v1
kind: Pod
metadata:
  name: kube-addon-manager
  namespace: kube-system
  annotations:
    scheduler.alpha.kubernetes.io/critical-pod: ''
    seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
  labels:
    component: kube-addon-manager
spec:
  hostNetwork: true
  containers:
  - name: kube-addon-manager
    image: k8s.gcr.io/kube-addon-manager:v8.6
    command:
    - /bin/bash
    - exec /opt/kube-addons.sh 1>>/var/log/kube-addon-manager.log 2>&1
    resources:
      requests:
        cpu: 5m
        memory: 50Mi
    volumeMounts:
    - mountPath: /etc/kubernetes/
      name: addons
      readOnly: true
    - mountPath: /var/log
      name: varlog
      readOnly: false
  volumes:
  - hostPath:
      path: /etc/kubernetes/
    name: addons
  - hostPath:
      path: /var/log
    name: varlog
Addon-manager 的源码维护在 https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/addon-manager。