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Add the advanced network chapter
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##创建自己的桥接
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如果希望完全使用自己的桥接设置,可以在启动docker服务的时候,使用 -b BRIDGE or --bridge=BRIDGE 来告诉docker使用你的网桥。如果服务已经启动,旧的网桥还在使用中,那需要先停止服务,再删除旧的网桥
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```
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#停止旧网桥并删除
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$ sudo service docker stop
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$ sudo ip link set dev docker0 down
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$ sudo brctl delbr docker0
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```
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然后在开启服务前,创建你自己希望的网桥接口,这里建立一个网桥的配置:
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```
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# 创建自己的网桥
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$ sudo brctl addbr bridge0
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$ sudo ip addr add 192.168.5.1/24 dev bridge0
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$ sudo ip link set dev bridge0 up
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```
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```
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# 确认网桥启动
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$ ip addr show bridge0
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4: bridge0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state UP group default
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link/ether 66:38:d0:0d:76:18 brd ff:ff:ff:ff:ff:ff
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inet 192.168.5.1/24 scope global bridge0
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valid_lft forever preferred_lft forever
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```
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```
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# 告诉docker桥接设置,并启动docker服务(在ubuntu上)
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$ echo 'DOCKER_OPTS="-b=bridge0"' >> /etc/default/docker
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$ sudo service docker start
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```
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docker服务启动成功并绑定容器到新的网桥,新建一个容器,你会看到它的ip是我们的设置的新ip段,docker会自动检测到它。用brctl
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show可以看到容器启动或则停止后网桥的配置变化,在容器中使用```ip addr```和```ip route```来查看ip地址配置和路由信息。
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