k8s 安装flannel网络插件

 

mkdir -p /etc/cni/net.d/

 

cat <<EOF> /etc/cni/net.d/10-flannel.conf

{

“name”: “cbr0”,

“type”: “flannel”,

“delegate”: {

“isDefaultGateway”: true

}

}

 

EOF

 

mkdir /usr/share/oci-umount/oci-umount.d -p

 

mkdir /run/flannel/

 

cat <<EOF> /run/flannel/subnet.env

FLANNEL_NETWORK=10.244.0.0/16

FLANNEL_SUBNET=10.244.1.0/24

FLANNEL_MTU=1450

FLANNEL_IPMASQ=true

 

EOF

 

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.9.1/Documentation/kube-flannel.yml

 

 

 

//查看kubernetes-dashboard create -f xxx.yaml 拉取失败的原因：ErrImagePull、ImagePullBackOff
命令：
 kubectl describe pod kubernetes-dashboard-669f9bbd46-dph47

 

kubectl 常用命令：

kubectl get pods --all-namespaces      //查看kube-flannel 状态    running 为安装正常

kubectl get pods --all-namespaces -o wide

kubectl get nodes

kubectl get cs

kubectl get csr

kubectl apply -f  xxxx.yaml

kubectl create -f xxxx.yaml

kubectl delete -f xxxxx.yaml

 

kubectl reset      //重置整个k8s集群，master node节点相同操作

 

查看dashboard 外网映射端口：

kubectl get svc kubernetes-dashboard -n kube-system