DaemonSet Kubernetes --- resource controllers

⒈DaemonSet introduction, what is DaemonSet

　　DaemonSet sure to run a Pod on all (or some) Node [Note copy of the master node does not participate in scheduling]. When Node joins the cluster will add a Pod for them. When a Node is removed from the cluster, the Pod will be recovered. Delete DaemonSet will delete all its created Pod

　　Use of some typical usage DaemonSet:

　　· Run clustered storage daemon, such as running glusterd on each Node, ceph

　　· Log collection daemon running on each Node, for example fluentd, logstash

　　· Monitoring daemon runs on each Node, such as Prometheus Node Exporter, collectd, Datadog agency, New Relic agent, or Ganglia gmond

⒉DaemonSet resource file example

apiVersion: apps/v1 
kind: DaemonSet 
metadata:
  name: deamonset-example 
  labels: 
    app: daemonset 
spec:
  selector:
    matchLabels:
      name: deamonset-example 
  template:
    metadata:
      1abels: 
        name: deamonset-example 
    spec: 
      containers:
      - name: daemonset-example 
        image: fanqisoft/myapp:v1

⒊