kubespray/roles/network_plugin/flannel/templates/flannel-pod.yml

---
  kind: "Pod"
  apiVersion: "v1"
  metadata:
    name: "flannel"
    namespace: "kube-system"
    labels:
      app: "flannel"
      version: "v0.1"
  spec:
    volumes:
      - name: "subnetenv"
        hostPath:
          path: "/run/flannel"
      - name: "networkconfig"
        hostPath:
          path: "/etc/flannel-network.json"
    containers:
      - name: "flannel-server-helper"
        image: "{{ flannel_server_helper_image_repo }}:{{ flannel_server_helper_image_tag }}"
        args:
          - "--network-config=/etc/flannel-network.json"
          - "--etcd-prefix=/{{ cluster_name }}/network"
          - "--etcd-server={{ etcd_endpoint }}"
        volumeMounts:
          - name: "networkconfig"
            mountPath: "/etc/flannel-network.json"
        imagePullPolicy: "Always"
      - name: "flannel-container"
        image: "{{ flannel_image_repo }}:{{ flannel_image_tag }}"
        command:
          - "/bin/sh"
          - "-c"
          - "/opt/bin/flanneld -etcd-endpoints {{ etcd_access_endpoint }} -etcd-prefix /{{ cluster_name }}/network {% if flannel_interface is defined %}-iface {{ flannel_interface }}{% endif %} {% if flannel_public_ip is defined %}-public-ip {{ flannel_public_ip }}{% endif %}"
        ports:
          - hostPort: 10253
            containerPort: 10253
        resources:
          limits:
            cpu: "100m"
        volumeMounts:
          - name: "subnetenv"
            mountPath: "/run/flannel"
        securityContext:
          privileged: true
    hostNetwork: true