Kubernetes tmpfs

背景：

早上小伙伴打来电话，问我想要将内存挂载成硬盘使用（环境all in kubernetes）,这不是内存虚拟盘吗？tmpfs......没有搞过，google一下关键词：

kubernetes tmpfs

Kubernetes tmpfs

第一个链接打开是官方文档：

恩也有中文版：

简单的介绍都是。

yaml示例

谷歌的第二个链接打开yaml的示例一个可以参照一下：

最后修改一下我的yaml and apply:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: pvp-game-1
spec:
  replicas: 1
  strategy:
    rollingUpdate:
      maxSurge: 0
      maxUnavailable: 1
  selector:
    matchLabels:
      app: pvp-game-1
  template:
    metadata:
      labels:
        app: pvp-game-1
    spec:
      containers:
        - name: pvp-game-1
          image: registry.cn-beijing.aliyuncs.com/develop-xxxx/pvp-game:202211042229
          volumeMounts:
          - mountPath: /share_assets
            name: tmp
          env:
          - name: HOST_NAME
            value: pvp-game-1
          envFrom:
          - configMapRef:
              name: pvpgame1
          ports:
            - containerPort: 8955
              name: game-http
            - containerPort: 8970
              name: game1-http
            - containerPort: 28667
              name: nacos-tcp
          resources:
            requests:
              memory: "8192M"
              cpu: "4"
            limits:
              memory: "8192M"
              cpu: "4" 
          livenessProbe:
            httpGet:
              scheme: HTTP
              path: /keepalive
              port: 28667
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            failureThreshold: 3
          readinessProbe:
            httpGet:
              scheme: HTTP
              path: /keepalive
              port: 28667
            initialDelaySeconds: 20
            periodSeconds: 10
      volumes:
        - name: tmp
          emptyDir:
            medium: Memory
            sizeLimit: 500Mi
      imagePullSecrets:                                              
        - name: aliyun
---

apiVersion: v1
kind: Service
metadata:
  name: pvp-game-1
  labels:
    app: pvp-game-1
spec:
  ports:
  - port: 8955
    name: game-http
    targetPort: 8955
  - port: 8970
    name: game1-http
    targetPort: 8970
  - port: 28667
    name: nacos-tcp
    targetPort: 28667
  selector:
    app: pvp-game-1

参照官方文档medium sizeLimit .500Mi是程序小伙伴让设置的

最后apply yaml文件：

kubectl apply -f pvp-game1.yaml -n develop

验证一下：

kubectl get pods -n develop|grep pvp-game
kubectl exec -it pvp-game-1-c58694b5c-bf4nl bash -n develo
df -h

不求甚解，解决.......

可以参考的：

1. k8s pod 配置shareMemory

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