我的环境:
在为 vm virbr0 桥创建的主机上,其 IP 地址为 192.168.122.1,并在 vm 实例上创建,接口为 ens3,IP 地址为 192.168.122.152。
192.168.122.1 - 是 192.168.122.0/24 网络的网关。
进入虚拟机:
创建网络:
# docker network create --subnet 192.168.122.0/24 --gateway 192.168.122.1 --driver macvlan -o parent=ens3 vmnet
创建 docker 容器:
# docker run -ti --network vmnet alpine ash
查看:
/ # ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
12: eth0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue state UP
link/ether 02:42:c0:a8:7a:02 brd ff:ff:ff:ff:ff:ff
inet 192.168.122.2/24 brd 192.168.122.255 scope global eth0
valid_lft forever preferred_lft forever
/ # ping 192.168.122.152
PING 192.168.122.152 (192.168.122.152): 56 data bytes
^C
--- 192.168.122.152 ping statistics ---
2 packets transmitted, 0 packets received, 100% packet loss
/ # ping 192.168.122.1
PING 192.168.122.1 (192.168.122.1): 56 data bytes
64 bytes from 192.168.122.1: seq=0 ttl=64 time=0.471 ms
^C
--- 192.168.122.1 ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 0.471/0.471/0.471 ms
好的,我启动了另一个 ip 地址为 192.168.122.73 的虚拟机并从 docker 检查:
/ # ping 192.168.122.73 -c2
PING 192.168.122.73 (192.168.122.73): 56 data bytes
64 bytes from 192.168.122.73: seq=0 ttl=64 time=1.630 ms
64 bytes from 192.168.122.73: seq=1 ttl=64 time=0.984 ms
--- 192.168.122.73 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 0.984/1.307/1.630 ms
从 docker 实例我无法 ping vm 上的接口,但我可以访问本地网络。
/ # ip n|grep 192.168.122.152
192.168.122.152 dev eth0 used 0/0/0 probes 6 FAILED
在 vm 上,我添加 macvlan0 nic:
# ip link add macvlan0 link ens3 type macvlan mode bridge
# ip addr add 192.168.122.100/24 dev macvlan0
# ip l set macvlan0 up
从 docker 我可以 ping 192.168.122.100:
/ # ping 192.168.122.100 -c2
PING 192.168.122.100 (192.168.122.100): 56 data bytes
64 bytes from 192.168.122.100: seq=0 ttl=64 time=0.087 ms
64 bytes from 192.168.122.100: seq=1 ttl=64 time=0.132 ms
--- 192.168.122.100 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 0.087/0.109/0.132 ms