Docker 跨主机容器之间的通信macvlan

默认一个物理网卡，只有一个物理mac地址，虚拟多个mac地址
缺点：每次需要手动配置ip地址，容易ip地址冲突。类似于保存到execl表格里面。
两台物理机：docker-01和docker-02

创建macvlan网络

[root@docker-01 ~]# docker network create --driver macvlan --subnet 10.0.0.0/24 --gateway 10.0.0.254 -o parent=eth0 macvlan_1 
a2e790b4ac802c659e216b23096bb2f761361828f41498bf28392e8261fb7ea2
[root@docker-02 ~]# docker network create --driver macvlan --subnet 10.0.0.0/24 --gateway 10.0.0.254 -o parent=eth0 macvlan_1 
9c7839f953ba6f619d195872bc2a34791efa12b37c96754063041eadd876654e

创建使用macvlan网络的容器

[root@docker-01 ~]# docker run -itd --network macvlan_1 --ip=10.0.0.201 centos6_9_ssh_nginx:v1
[root@docker-02 ~]# docker run -itd --network macvlan_1 --ip=10.0.0.202 centos6_9_ssh_nginx:v1

互ping测试

[root@docker-01 ~]# docker exec -it lucid_mestorf /bin/bash
[root@cbeaf45ad4da /]# ifconfig |grep 10.0.0.
          inet addr:10.0.0.201  Bcast:10.0.0.255  Mask:255.255.255.0
[root@docker-02 ~]# docker exec -it 1e14992e9209 /bin/bash
[root@1e14992e9209 /]# ifconfig |grep 10.0.0.2
          inet addr:10.0.0.202  Bcast:10.0.0.255  Mask:255.255.255.0

在docker01的容器pingdocker02容器的ip地址
在docker02的容器pingdocker01容器的ip地址

[root@cbeaf45ad4da /]# ping 10.0.0.202 -c4
PING 10.0.0.202 (10.0.0.202) 56(84) bytes of data.
64 bytes from 10.0.0.202: icmp_seq=1 ttl=64 time=0.289 ms
64 bytes from 10.0.0.202: icmp_seq=2 ttl=64 time=1.44 ms
64 bytes from 10.0.0.202: icmp_seq=3 ttl=64 time=1.52 ms
64 bytes from 10.0.0.202: icmp_seq=4 ttl=64 time=1.31 ms

[root@1e14992e9209 /]# ping 10.0.0.201 -c4
PING 10.0.0.201 (10.0.0.201) 56(84) bytes of data.
64 bytes from 10.0.0.201: icmp_seq=1 ttl=64 time=2.64 ms
64 bytes from 10.0.0.201: icmp_seq=2 ttl=64 time=1.40 ms
64 bytes from 10.0.0.201: icmp_seq=3 ttl=64 time=0.521 ms
64 bytes from 10.0.0.201: icmp_seq=4 ttl=64 time=0.601 ms

设置eth0的网卡为混杂模式，ubuntu需要设置

ip link set eth1 promisc on