Flannel Manifest

manifest.yml

---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1

metadata:
  name: flannel
  labels:
    tier: node
    app: flannel

rules:
  - apiGroups:
      - ""
    resources:
      - "pods"
    verbs:
      - "get"
  - apiGroups:
      - ""
    resources:
      - "nodes"
    verbs:
      - "list"
      - "watch"
  - apiGroups:
      - ""
    resources:
      - "nodes/status"
    verbs:
      - "patch"

...
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1

metadata:
  name: flannel
  labels:
    tier: node
    app: flannel

roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: flannel
subjects:
  - kind: ServiceAccount
    name: flannel
    namespace: kube-system

...
---
apiVersion: v1
kind: ServiceAccount

metadata:
  name: flannel
  namespace: kube-system
  labels:
    tier: node
    app: flannel

...
---
kind: ConfigMap
apiVersion: v1

metadata:
  name: flannel
  namespace: kube-system
  labels:
    tier: node
    app: flannel

data:
  cni-conf.json: |
    {
      "name": "cbr0",
      "cniVersion": "0.3.1",
      "plugins": [
        {
          "type": "flannel",
          "delegate": {
            "hairpinMode": true,
            "isDefaultGateway": true
          }
        },
        {
          "type": "portmap",
          "capabilities": {
            "portMappings": true
          }
        }
      ]
    }
  net-conf.json: |
    {
      "Network": "10.0.0.0/8",
      "Backend": {
        "Type": "vxlan"
      }
    }

...
---
apiVersion: apps/v1
kind: DaemonSet

metadata:
  name: flannel
  namespace: kube-system
  labels:
    tier: node
    app: flannel

spec:
  selector:
    matchLabels:
      tier: node
      app: flannel
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      serviceAccountName: flannel
      hostNetwork: true
      priorityClassName: system-node-critical

      tolerations:
        - operator: Exists
          effect: NoSchedule
        - operator: Exists
          effect: NoSchedule

      nodeSelector:
        kubernetes.io/os: linux

      initContainers:
        - name: install-plugin
          image: rancher/mirrored-flannelcni-flannel-cni-plugin:v1.0.0
          imagePullPolicy: IfNotPresent

          command:
            - cp
          args:
            - -f
            - /flannel
            - /opt/cni/bin/flannel

          resources:
            requests:
              cpu: "100m"
              memory: "50Mi"
            limits:
              cpu: "100m"
              memory: "50Mi"

          volumeMounts:
            - name: plugin
              mountPath: /opt/cni/bin

        - name: install-cnicfg
          image: quay.io/coreos/flannel:v0.15.1
          imagePullPolicy: IfNotPresent

          command:
            - cp
          args:
            - -f
            - /etc/kube-flannel/cni-conf.json
            - /etc/cni/net.d/10-flannel.conflist

          resources:
            requests:
              cpu: "100m"
              memory: "50Mi"
            limits:
              cpu: "100m"
              memory: "50Mi"

          volumeMounts:
            - name: cni
              mountPath: /etc/cni/net.d
            - name: flannel
              mountPath: /etc/kube-flannel/

      containers:
        - name: flannel
          image: quay.io/coreos/flannel:v0.15.1
          imagePullPolicy: IfNotPresent

          command:
            - /opt/bin/flanneld

          args:
            - --ip-masq
            - --kube-subnet-mgr
            - --iface
            - ens10

          securityContext:
            privileged: false
            capabilities:
              add:
                - NET_ADMIN
                - NET_RAW

          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace

          resources:
            requests:
              cpu: "100m"
              memory: "50Mi"
            limits:
              cpu: "100m"
              memory: "50Mi"

          volumeMounts:
            - name: run
              mountPath: /run/flannel
            - name: flannel
              mountPath: /etc/kube-flannel/

      volumes:
        - name: run
          hostPath:
            path: /run/flannel
        - name: plugin
          hostPath:
            path: /opt/cni/bin
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel
          configMap:
            name: flannel

...