飞天使-k8s知识点27-kubernetes温故知新2-deployment

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文章目录

- - - RC和RS
    - 无状态应用管理 deployment
    - 有状态应用statefulSet
    - daemonSet

RC和RS

RC不会使用在生产环境
RS 比RC 多了标签选择器 ，RS 用deployment管理，用于容器编排

无状态应用管理 deployment

apiVersion: apps/v1
kind: Deployment
metadata:name: nginx-deploymentlabels:app: nginx
spec:replicas: 3selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- name: nginximage: nginx:1.15.12ports:- containerPort: 80

deployment 涉及更新，回滚，根据标签去控制pod，扩容，缩容

有状态应用statefulSet

apiVersion: v1
kind: Service
metadata:name: nginxlabels:app: nginx
spec:ports:- port: 80name: webclusterIP: Noneselector:app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:name: web
spec:serviceName: "nginx"replicas: 2selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- name: nginximage: nginxports:- containerPort: 80name: web

daemonSet

apiVersion: apps/v1
kind: DaemonSet
metadata:labels:app: nginxname: nginx
spec:selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- image: nginx:1.15.12imagePullPolicy: IfNotPresentname: nginx

参考资料：宽哥

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