标签：centos multicast link tar 示例 def start code 相互
docker 启动时 会在 主机上创建一个 docker0 的网桥 ，同时 会随机分配给网桥一个 未分配的私有ip地址。
此后，启动的容器都会分配一个同网段的地址
当创建一个 Docker 容器的时候，同时会创建了一对 veth pair 接口（当数据包发送到一个
接口时，另外一个接口也可以收到相同的数据包）。这对接口一端在容器内，即 eth0 ；另
一端在本地并被挂载到 docker0 网桥，名称以 veth 开头（例如 下面示例中的 veth1596ba3@if64 和 vethaf230bd@if66
）。通过这种
方式，主机可以跟容器通信，容器之间也可以相互通信。Docker 就创建了在主机和所有容器
之间一个虚拟共享网络。
主机上
[root@jinkang-centos7 ~]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 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 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:16:3e:0b:89:7f brd ff:ff:ff:ff:ff:ff inet 192.168.0.76/24 brd 192.168.0.255 scope global dynamic eth0 valid_lft 315124844sec preferred_lft 315124844sec 3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 02:42:ed:2a:f2:11 brd ff:ff:ff:ff:ff:ff inet 172.17.0.1/16 scope global docker0 valid_lft forever preferred_lft forever 65: veth1596ba3@if64: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default link/ether ca:27:eb:f1:f0:2e brd ff:ff:ff:ff:ff:ff link-netnsid 10 67: vethaf230bd@if66: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default link/ether 1e:35:d8:f4:2f:b2 brd ff:ff:ff:ff:ff:ff link-netnsid 11
容器1
[root@b62c75fe78a3 /]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 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 inet6 ::1/128 scope host valid_lft forever preferred_lft forever 66: eth0@if67: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 02:42:ac:11:00:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 172.17.0.3/16 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::42:acff:fe11:3/64 scope link valid_lft forever preferred_lft forever
容器2
[root@da7f228a8a9d /]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 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 inet6 ::1/128 scope host valid_lft forever preferred_lft forever 64: eth0@if65: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 172.17.0.2/16 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::42:acff:fe11:2/64 scope link valid_lft forever preferred_lft forever
使用自定义网桥
$ sudo systemctl stop docker $ sudo ip link set dev docker0 down $ sudo brctl delbr docker0
$ sudo brctl addbr bridge0
$ sudo ip addr add 192.168.5.1/24 dev bridge0
$ sudo ip link set dev bridge0 up
/etc/docker/daemon.json 中新增
{
"bridge":"bridge0"
}
systemctl start docker
这时新建容器时，便会桥接到 bridge0 上，ip 便是 192.168.5.1 段的
标签：centos multicast link tar 示例 def start code 相互
原文地址：https://www.cnblogs.com/jkklearn/p/13283111.html
