主机网络没有包含 docker 主机网络模型接口 IP 的 IP 段

Question

我得到了docker网络快照的四种模型类型：

主机模型（开放容器）附加到主机的逻辑主机接口和环回接口。

在我的例子中，我创建了宿主模型容器：

$ docker run --name container-bridge --network=host  -it --rm busybox:latest

并且在容器中它有 10 个虚拟接口。

/ # ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 brd 127.255.255.255 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 02:50:00:00:00:01 brd ff:ff:ff:ff:ff:ff
    inet 192.168.65.3/24 brd 192.168.65.255 scope global deprecated dynamic noprefixroute eth0
       valid_lft 1415sec preferred_lft 0sec
    inet6 fe80::50:ff:fe00:1/64 scope link 
       valid_lft forever preferred_lft forever
3: tunl0@NONE: <NOARP> mtu 1480 qdisc noop qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
4: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop qlen 1000
    link/tunnel6 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 brd 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
5: services1@if6: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue 
    link/ether c2:db:47:39:c7:fc brd ff:ff:ff:ff:ff:ff
    inet 192.168.65.4 peer 192.168.65.5/32 scope global services1
       valid_lft forever preferred_lft forever
    inet6 fe80::c0db:47ff:fe39:c7fc/64 scope link 
       valid_lft forever preferred_lft forever
7: br-b7cc12043647: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue 
    link/ether 02:42:30:d7:06:a7 brd ff:ff:ff:ff:ff:ff
    inet 192.168.49.1/24 brd 192.168.49.255 scope global br-b7cc12043647
       valid_lft forever preferred_lft forever
    inet6 fe80::42:30ff:fed7:6a7/64 scope link 
       valid_lft forever preferred_lft forever
8: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue 
    link/ether 02:42:9e:26:2d:f9 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:9eff:fe26:2df9/64 scope link 
       valid_lft forever preferred_lft forever
10: veth2fba778@if9: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue master br-b7cc12043647 
    link/ether 52:64:9d:7f:d1:01 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::5064:9dff:fe7f:d101/64 scope link 
       valid_lft forever preferred_lft forever

主界面是 eth0 用于连接主机（我的 macos），主机的 IP 地址为 192.168.65.3/24

但是在我的 macOS 中，我没有在网段 192.168.65.0/24.

下找到 IP 地址

$ ifconfig -a | grep 192.168.65

Answer 1

参见 Use host networking，它清楚地提到 --net=host 不适用于 macos：

The host networking driver only works on Linux hosts, and is not supported on Docker Desktop for Mac, Docker Desktop for Windows, or Docker EE for Windows Server.

所以，容器中的网络肯定与您macos中的网络不同。

主机网络没有包含 docker 主机网络模型接口 IP 的 IP 段

Host network do not have a IP segment who contains the docker host network model's interface IP

docker

docker-network