DaemonSet¶
https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
确保所有或者部分Kubernetes集群节点上运行一个pod。当有新节点加入时,pod也会运行在上面。
常见例子:
kube-proxy 网络相关
log collectors
metric servers
Resource monitoring agent
storage daemons
语法¶
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: hello-ds
spec:
selector:
matchLabels:
app: hello-world
template:
metadata:
labels:
app: hello-world
spec:
containers:
- name: hello-world
image: nginx:1.14
可以指定Node,通过 nodeSelector
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: hello-ds
spec:
selector:
matchLabels:
app: hello-world
template:
metadata:
labels:
app: hello-world
spec:
nodeSelector:
node: hello-world
containers:
- name: hello-world
image: nginx:1.14
Update Strategy¶
RollingUpdate
OnDelete