---

layout: post
title: Kubernetes命名空间资源限制[学习]
categories: Java, Scala,Hadoop,Flink
description: Java, Scala,Hadoop,Flink

keywords: Java, Scala,Hadoop,Flink

Kubernetes命名空间资源限制主要是为了多个团队一起开发来区分资源使用情况。

1. ResourceQuota

  
apiVersion: v1  
kind: ResourceQuota  
metadata:  
  name: compute-resources  
  namespace: test  
spec:  
  hard:  
    requests.cpu: "1"  
    requests.memory: 2Gi  
    limits.cpu: "4"  
    limits.memory: 12Gi  
  

2. LimitRange

  
apiVersion: v1  
kind: LimitRange  
metadata:  
  name: limits  
spec:  
  limits:  
  - max:  
      cpu: "4"  
      memory: 2Gi  
    min:  
      cpu: 200m  
      memory: 6Mi  
    maxLimitRequestRatio:  
      cpu: 3  
      memory: 2  
    type: Pod  
  - default:  
      cpu: 300m  
      memory: 200Mi  
    defaultRequest:  
      cpu: 200m  
      memory: 100Mi  
    max:  
      cpu: "2"  
      memory: 1Gi  
    min:  
      cpu: 100m  
      memory: 3Mi  
    maxLimitRequestRatio:  
      cpu: 5  
      memory: 4  
    type: Container  
  
  

3.映射方案Ceph RBD

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: demo-app-server  
  namespace: [namespace]  
spec:  
  replicas: 1  
  selector:  
    app: demo-app-server  
  template:  
    metadata:  
      labels:  
        app: demo-app-server  
    spec:  
      containers:  
        - name: demo-app-server-container  
          image: image.firsh.io/demo-base/appserver:latest  
          imagePullPolicy: Always  
          ports:  
          - containerPort: 8080  
          env:  
            - name: APP_HOME_CONF_DIR  
              value: /home/demo-app/conf  
          command: ["java","-jar","/home/demo-app/demoapp.jar"]  
          volumeMounts:  
                - name: config-volume  
                  mountPath: /home/demo-app/conf  
                - name: app-log  
                  mountPath: /var/log/development  
      volumes:  
        - name: config-volume  
          configMap:  
            name: demo-app-server  
        - name: app-log  
          hostPath:  
            path: /kube/demo-apiserver/logs  
  
---  
apiVersion: v1  
kind: Service  
metadata:  
 name: demo-app-service  
 namespace: demo  
spec:  
   #type: ClusterIP  
   ports:  
   - name: demo-app-out-in  
     port: 1000  
     targetPort: 8080  
   externalIPs:  
   - [192.168.1.100]  
   selector:  
     app: demo-app-server  

感谢企业服务部牛总提供的解决方案