为了使本地网络中的机器和Docker容器更方便的通信，我们经常会有将Docker容器配置到和主机同一网段的需求。这个需求其实很容易实现，我们只要将Docker容器和宿主机的网卡桥接起来，再给Docker容器配上IP就可以了。
Centos 6按照下面的方法操作（6与7的操作有所不同）
[root
@localhost ~]
[root
@localhost network-scripts]
ifcfg-eth0 ifdown-ib ifdown-ppp ifup-aliases ifup-ipv6 ifup-ppp init.ipv6-
global
ifcfg-lo ifdown-ippp ifdown-routes ifup-bnep ifup-isdn ifup-routes net.hotplug
ifdown ifdown-ipv6 ifdown-sit ifup-eth ifup-plip ifup-sit network-functions
ifdown-bnep ifdown-isdn ifdown-tunnel ifup-ib ifup-plusb ifup-tunnel network-functions-ipv6
ifdown-eth ifdown-post ifup ifup-ippp ifup-post ifup-wireless
[root
@localhost network-scripts]
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[root@localhost network-scripts]
DEVICE=eth0
HWADDR=00:0C:29:DB:B2:28
TYPE=Ethernet
UUID=b2268aab-fa2e-49e9-bd67-2572f29e5790
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.1.179
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DNS1=114.114.114.114
DNS2=8.8.4.4
增加BRIDGE=br0，删除IPADDR、NETMASK、GATEWAY、DNS
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DEVICE=eth0
HWADDR=00:0C:29:DB:B2:28
TYPE=Ethernet
UUID=b2268aab-fa2e-49e9-bd67-2572f29e5790
ONBOOT=yes
BRIDGE=br0
BOOTPROTO=none
保存退出
# vi ifcfg-br0
DEVICE=eth0
HWADDR=00:0C:29:DB:B2:28
TYPE=Ethernet
UUID=b2268aab-fa2e-49e9-bd67-2572f29e5790
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.1.179
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DNS1=114.114.114.114
DNS2=8.8.4.4
修改DEVICE为br0，Type为Bridge，把eth0的网络设置设置到这里来
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DEVICE=br0
TYPE=Bridge
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.179
NETMASK=255.255.255.0
GATEWAY=1.1
DNS1=114.114.114.114
DNS2=8.8.4.4
保存退出
1
[root
@localhost network-scripts]
这一步我出现了问题，不过重启宿主机后就OK了。
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[root
@localhost ~]
br
0 Link encap:Ethernet HWaddr 00:0
C:29:DB:B2:28
inet
addr:1.179 Bcast1.255 Mask255.0
inet6
addr: fe80:20c:ff:fedb:b228/
64 Scope:Link
UP broADCAST RUNNING MULTICAST MTU1500 Metric1
RX packets:137 errors:0 dropped:overruns:frame:0
TX 93 carrier:0
collisions:txqueuelen:0
RX bytes:13745 (
13.4 KiB)
TX 11095 (
10.8 KiB)
docker
0 Link encap:Ethernet HWaddr C60170:AF:C6:E4
inet
172.17.
42.1 Bcast0.
0 Mask0
inet6
:c401feaf:c6e4/
6 0 (
0 b)
TX 468 (
468.0 b)
eth
0 Link 28
inet6
101 1000
RX 15663 (
15.2 KiB)
TX 11959 (
11.6 KiB)
lo
Link encap:Local Loopback
inet
127.0.
1 Mask255.0.
:1/
128 Scope:Host
UP LOOPBACK RUNNING MTU65536 Metric16 960 (
960.0 b)
TX 960.0 b)
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[root
# git
-
bash: git: command
not found
[root
# yum install -y git
[root
# cd /etc/sysconfig/network-scripts/
[root
# git clone https://github.com/jpetazzo/pipework
pipework是由Docker的工程师Jérôme Petazzoni开发的一个Docker网络配置工具
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[root
# ls
ifcfg-br
0 ifdown-eth ifdown-post ifup ifup-ippp ifup-post ifup-wireless pipework
ifcfg-eth
0 ifdown-ib ifdown-ppp ifup-aliases ifup-ipv6 ifup-ppp init.ipv6-global
ifcfg-lo ifdown-ippp ifdown-routes ifup-bnep ifup-isdn ifup-routes net.hotplug
ifdown ifdown-ipv6 ifdown-sit ifup-eth ifup-plip ifup-sit network-functions
ifdown-bnep ifdown-isdn ifdown-tunnel ifup-ib ifup-plusb ifup-tunnel network-functions-ipv6
[root
# cp pipework/pipework /usr/local/bin/
[root
# cd
[root
# docker run -itd --net=none --name docker_bridge centos_with_httpd:genesis bash
5417847d3edf9381acf4bcc94c5345002521f4500415d835f081b022f6d48723
[root
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5417847d3edf
centos_with_httpd:ge
nesis
"bash" 8 seconds ago
Up 6 seconds docker_bridge
[root
# docker exec -it docker_bridge bash
[root
@5417847d3edf /]
lo: flags=
73<
UP,
LOOPBACK,
RUNNING> mtu
65536
inet
1 netmask
0
inet6
1 prefixlen
128 s
copeid
0x10<host>
loop txqueuelen
0 (
Local Loopback)
RX packets
0 bytes
0 B)
RX errors
0 dropped
0 overruns
0 frame
0
TX packets
0 B)
TX errors
0 overruns
0 carrier
0 collisions
0
[root
# exit
# rpm -Uvh https://repos.fedorapeople.org/openstack/EOL/openstack-grizzly/epel-6/iproute-2.6.32-130.el6ost.netns.2.x86_64.rpm
不升级会报错Object “netns” is unkNown,try “ip help”
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[root
# pipework br0 docker_bridge 192.168.1.187/24
[root
eth1: flags=
4163<
UP,
broADCAST,
RUNNING,
MULTICAST> mtu
1500
inet
1.187 netmask
255.0 broadcast
1.255
inet6
:bcf29cff:fe1e:4796 prefixlen
64 s
copeid
0x20<link>
ether
be:f2:1e:4796 txqueuelen
1000 (
Ethernet)
RX packets
7 bytes
528 (
528.0 B)
RX errors
510 (
510.0 B)
TX errors
0
0
ping一下网关
[root@5417847d3edf /]
PING 192.168.1.1 (.1) 56(84) bytes of data.
64 bytes from .1: icmp_seq=1 ttl=64 time=63.1 ms
2 ttl=2.12 ms
^C
2 packets transmitted,2 received,102); Box-sizing: border-Box;">0% packet loss,time 1001ms
rtt min/avg/max/mdev = 2.125/32.637/63.150/30.513 ms
转自：
http://www.jb51.cc/article/p-djlddazl-bew.html
原文地址：https://www.jb51.cc/centos/379358.html
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