docker体验macvlan

docker所在的host初始化网络. 假设子网IP段为192.168.122.0/24, 网关为192.168.122.1, hostIP为192.168.122.77

    ip addr del 192.168.122.77/24 dev eth0
    ip link add link eth0 dev eth0m type macvlan mode bridge
    ip link set eth0m up
    ip addr add 192.168.122.77/24 dev eth0m
    route add default gw 192.168.122.1

创建一个macvlan类型的虚拟网卡

    # ip link add link eth0 name macvlan0 type macvlan

给macvlan0配置MAC

    #ip link set macvlan0 address 3a:46:0b:ca:bc:1b up

创建netns a. 查看container pid

  # docker inspect jovial_lumiere |grep pid -i
        "Pid": 4330,
        "PidMode": "",

b. 创建container netns链接(无此步骤，接下来没法操作), ip netns list将读取/var/run/netns文件夹。

    # mkdir -vp /var/run/netns
    # ln -s /proc/4330/ns/net /var/run/netns/4330

将macvlan0置于namespace中

  # ip link set macvlan0 netns 4430

给macvlan0 调转IP 地址

    # ip netns exec 4330 ifconfig macvlan0 192.168.122.101/24 up

修改容器的默认网关。

    # ip netns exec 4330 ip route replace default via 192.168.122.1

如果使用pipework一条命令就搞定了

    # pipework eth0 $container_name 192.168.122.234/24@192.168.122.1