docker跨主机容器通信

系统管理员 2021-11-05 11:24 368阅读 0赞

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实验准备：server1，server2 安装并启动docker-ce 添加**双网卡**

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设置server1和server2的eth1网卡的混杂模式
    
    [root@server1 ~]# ip link set eth1 promisc on
    
    [root@server2 ~]# ip link set eth1 promisc on
    
    创建macvlan网络
    
    root@server1 ~]# docker network create -d macvlan --subnet 172.20.0.0/24 --gateway 172.20.0.1 -o parent-eth1 macvlan1
    
    [root@server2 ~]# docker network create -d macvlan --subnet 172.20.0.0/24 --gateway 172.20.0.1 -o parent-eth1 macvlan1
    
    
    使用macvlan1网络创建容器
    [root@server1 ~]# docker run -it --name vm1 --network macvlan1 --ip 172.20.0.11 ubuntu
    
    [root@server2 ~]# docker run -it --name vm2 --network macvlan1 --ip 172.20.0.12 ubuntu

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3ZhbnZhbl8_size_16_color_FFFFFF_t_70 5][]

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vm1，vm2容器中可以互相通信。

**macvlan会独占主机的网卡的解决方案**

前面说过macvlan会独占主机网卡,但可以使用vlan子接口实现多macvlan网络
    vlan可以将物理二层网络划分为4094个逻辑网络,彼此隔离,vlan id取值为1~4094
    我们只需要在创建容器时使用vlan子接口就可以i解决：

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