kubernetes flannel网络插件安装

有条件的可以去官方文档地址下载flannel的yaml文件

wget https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml

其中 Network 需要与你创建集群时  --pod-network-cidr=10.244.0.0/16 保持一致
   net-conf.json: |
    {
      "Network": "10.244.0.0/16",
      "Backend": {
        "Type": "vxlan"
      }
    }

可以通过查看

[root@k8s-master manifests]# cat kube-controller-manager.yaml | grep -e "--cluster-cidr"
    - --cluster-cidr=10.244.0.0/16

下面附上链接的yaml文件

[root@k-master ~]# cat kube-flunnel.yaml
---
kind: Namespace
apiVersion: v1
metadata:
  name: kube-flannel
  labels:
    k8s-app: flannel
    pod-security.kubernetes.io/enforce: privileged
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  labels:
    k8s-app: flannel
  name: flannel
rules:
- apiGroups:
  - ""
  resources:
  - pods
  verbs