k8s1.12以上版本设置LXCFS

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安装依赖包

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yum -y install fuse-devel fuse fuse-libs

使用k8s Daemonsets部署lxcfs

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apiVersion: apps/v1beta2
kind: DaemonSet
metadata:
  name: lxcfs
  namespace: default
  labels:
    app: lxcfs
spec:
  selector:
    matchLabels:
      app: lxcfs
  template:
    metadata:
      labels:
        app: lxcfs
    spec:
      hostPID: true
      tolerations:
      - key: node-role.kubernetes.io/master
        effect: NoSchedule
      containers:
      - name: lxcfs
        image: registry.cn-hangzhou.aliyuncs.com/denverdino/lxcfs:3.0.4
        imagePullPolicy: Always
        securityContext:
          privileged: true
        volumeMounts:
        - name: cgroup
          mountPath: /sys/fs/cgroup
        - name: lxcfs
          mountPath: /var/lib/lxcfs
          mountPropagation: Bidirectional
        - name: usr-local
          mountPath: /usr/local
      volumes:
      - name: cgroup
        hostPath:
          path: /sys/fs/cgroup
      - name: usr-local
        hostPath:
          path: /usr/local
      - name: lxcfs
        hostPath:
          path: /var/lib/lxcfs
          type: DirectoryOrCreate

例子

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apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    "initializer.kubernetes.io/lxcfs": "true"
  labels:
    app: web
  name: web
spec:
  replicas: 1
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      containers:
        - name: web
          image: httpd:2.4.32
          volumeMounts:
            - name: cpuinfo
              mountPath: /proc/cpuinfo
            - name: meminfo
              mountPath: /proc/meminfo
            - name: diskstats
              mountPath: /proc/diskstats
            - name: stat
              mountPath: /proc/stat
            - name: swaps
              mountPath: /proc/swaps
            - name: uptime
              mountPath: /proc/uptime
          imagePullPolicy: Always
          resources:
            requests:
              memory: "1024Mi"
              cpu: "100m"
            limits:
              memory: "1024Mi"
              cpu: "100m"

      volumes:
      - name: cpuinfo
        hostPath:
          path: /var/lib/lxcfs/proc/cpuinfo
          type: File
      - name: meminfo
        hostPath:
          path: /var/lib/lxcfs/proc/meminfo
          type: File
      - name: diskstats
        hostPath:
          path: /var/lib/lxcfs/proc/diskstats
          type: File
      - name: stat
        hostPath:
          path: /var/lib/lxcfs/proc/stat
          type: File
      - name: swaps
        hostPath:
          path: /var/lib/lxcfs/proc/swaps
          type: File
      - name: uptime
        hostPath:
          path: /var/lib/lxcfs/proc/uptime
          type: File
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