kubernetes network ovs plugin demo
centos7 Linux k8s-master 5.4.131-1.el7.elrepo.x86_64 #1 SMP Sun Jul 11 08:52:19 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux
kubernetes version v1.23.1
go 1.16 go version go1.16.10 linux/amd64
openvswitch ovs_version: "2.12.0"
vmware 15 添加第二张网卡
ens37 nat模式
添加阿里云 yum 源
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
关闭 selinux
vim /etc/selinux/config
重启 reboot
关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
安装 ovs
yum install -y centos-release-openstack-train.noarch
yum install -y openvswitch openvswitch-devel openvswitch-ipsec openvswitch-test
#网桥工具
yum -y install bridge-utils
这个问题 下载下面那个包
#net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory
#net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5)
#PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory
#PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4)
yum install libibverbs -y
systemctl enable openvswitch
systemctl start openvswitch
创建一个网桥
ovs-vsctl add-br ovs-br0
ifconfig ens37 up
将 物理网卡ens37 接到 ovs 端口
ovs-vsctl add-port ovs-br0 ens37
开启 交换机的 stp 生成树协议 防止二层环路
ovs-vsctl get Bridge ovs-br0 stp_enable
ovs-vsctl set Bridge ovs-br0 stp_enable=true
安装 docker
yum install -y docker
systemctl enable docker
systemctl start docker
kubeadm 安装 k8s
复制 ovscni 到 /opt/cni/bin/ovscni
修改 10-ovscni.conf 中的 cidr 和虚拟机一个网段
复制 10-ovscni.conf 到 /etc/cni/net.d/10-ovscni.conf
查看节点 状态
kubectl get node
运行一个pod 查看 创建 pod是否正常
kubectl run nginx --image=nginx