Centos 6 Docker配置桥接网络

客官°小女子只卖身不卖艺 2022-07-11 12:12 285阅读 0赞

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）

  1. [root@localhost ~]# cd /etc/sysconfig/network-scripts/
  2. [root@localhost network-scripts]# ls
  3. ifcfg-eth0   ifdown-ib    ifdown-ppp     ifup-aliases  ifup-ipv6   ifup-ppp       init.ipv6-global
  4. ifcfg-lo     ifdown-ippp  ifdown-routes  ifup-bnep     ifup-isdn   ifup-routes    net.hotplug
  5. ifdown       ifdown-ipv6  ifdown-sit     ifup-eth      ifup-plip   ifup-sit       network-functions
  6. ifdown-bnep  ifdown-isdn  ifdown-tunnel  ifup-ib       ifup-plusb  ifup-tunnel    network-functions-ipv6
  7. ifdown-eth   ifdown-post  ifup           ifup-ippp     ifup-post   ifup-wireless
  8. [root@localhost network-scripts]# cp ifcfg-eth0 ifcfg-br0
  12.    1
  13.    2
  14.    3
  15.    4
  16.    5
  17.    6
  18.    7
  19.    8
  20.    9
  24.    1
  25.    2
  26.    3
  27.    4
  28.    5
  29.    6
  30.    7
  31.    8
  32.    9
  34. [root@localhost network-scripts]# vi ifcfg-eth0
  35. DEVICE=eth0
  36. HWADDR=00:0C:29:DB:B2:28
  37. TYPE=Ethernet
  38. UUID=b2268aab-fa2e-49e9-bd67-2572f29e5790
  39. ONBOOT=yes
  40. NM_CONTROLLED=yes
  41. BOOTPROTO=static
  42. IPADDR=192.168.1.179
  43. NETMASK=255.255.255.0
  44. GATEWAY=192.168.1.1
  45. DNS1=114.114.114.114
  46. DNS2=8.8.4.4
  50.    1
  51.    2
  52.    3
  53.    4
  54.    5
  55.    6
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  57.    8
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  63.    14
  67.    1
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  72.    6
  73.    7
  74.    8
  75.    9
  76.    10
  77.    11
  78.    12
  79.    13
  80.    14

增加BRIDGE=br0，删除IPADDR、NETMASK、GATEWAY、DNS

  1. DEVICE=eth0
  2. HWADDR=00:0C:29:DB:B2:28
  3. TYPE=Ethernet
  4. UUID=b2268aab-fa2e-49e9-bd67-2572f29e5790
  5. ONBOOT=yes
  6. BRIDGE=br0
  7. BOOTPROTO=none
  8. #IPADDR=192.168.1.179
  9. #NETMASK=255.255.255.0
  10. #GATEWAY=192.168.1.1
  11. #DNS1=114.114.114.114
  12. #DNS2=8.8.4.4
  16.    1
  17.    2
  18.    3
  19.    4
  20.    5
  21.    6
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  28.    13
  32.    1
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  37.    6
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  39.    8
  40.    9
  41.    10
  42.    11
  43.    12
  44.    13

保存退出

  1. [root@localhost network-scripts]# vi ifcfg-br0
  2. DEVICE=eth0
  3. HWADDR=00:0C:29:DB:B2:28
  4. TYPE=Ethernet
  5. UUID=b2268aab-fa2e-49e9-bd67-2572f29e5790
  6. ONBOOT=yes
  7. NM_CONTROLLED=yes
  8. BOOTPROTO=static
  9. IPADDR=192.168.1.179
  10. NETMASK=255.255.255.0
  11. GATEWAY=192.168.1.1
  12. DNS1=114.114.114.114
  13. DNS2=8.8.4.4
  17.    1
  18.    2
  19.    3
  20.    4
  21.    5
  22.    6
  23.    7
  24.    8
  25.    9
  26.    10
  27.    11
  28.    12
  29.    13
  30.    14
  34.    1
  35.    2
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  39.    6
  40.    7
  41.    8
  42.    9
  43.    10
  44.    11
  45.    12
  46.    13
  47.    14

修改DEVICE为br0，Type为Bridge，把eth0的网络设置设置到这里来

  1. DEVICE=br0
  2. TYPE=Bridge
  3. ONBOOT=yes
  4. BOOTPROTO=static
  5. IPADDR=192.168.1.179
  6. NETMASK=255.255.255.0
  7. GATEWAY=192.168.1.1
  8. DNS1=114.114.114.114
  9. DNS2=8.8.4.4
  13.    1
  14.    2
  15.    3
  16.    4
  17.    5
  18.    6
  19.    7
  20.    8
  21.    9
  22.    10
  26.    1
  27.    2
  28.    3
  29.    4
  30.    5
  31.    6
  32.    7
  33.    8
  34.    9
  35.    10

保存退出

  1. [root@localhost network-scripts]# service network restart
  4.    1
  8.    1

这一步我出现了问题，不过重启宿主机后就OK了。

  1. [root@localhost ~]# ifconfig
  2. br0       Link encap:Ethernet  HWaddr 00:0C:29:DB:B2:28
  3.           inet addr:192.168.1.179  Bcast:192.168.1.255  Mask:255.255.255.0
  4.           inet6 addr: fe80::20c:29ff:fedb:b228/64 Scope:Link
  5.           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  6.           RX packets:137 errors:0 dropped:0 overruns:0 frame:0
  7.           TX packets:93 errors:0 dropped:0 overruns:0 carrier:0
  8.           collisions:0 txqueuelen:0
  9.           RX bytes:13745 (13.4 KiB)  TX bytes:11095 (10.8 KiB)
  11. docker0   Link encap:Ethernet  HWaddr C6:01:70:AF:C6:E4
  12.           inet addr:172.17.42.1  Bcast:0.0.0.0  Mask:255.255.0.0
  13.           inet6 addr: fe80::c401:70ff:feaf:c6e4/64 Scope:Link
  14.           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  15.           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
  16.           TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
  17.           collisions:0 txqueuelen:0
  18.           RX bytes:0 (0.0 b)  TX bytes:468 (468.0 b)
  20. eth0      Link encap:Ethernet  HWaddr 00:0C:29:DB:B2:28
  21.           inet6 addr: fe80::20c:29ff:fedb:b228/64 Scope:Link
  22.           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
  23.           RX packets:137 errors:0 dropped:0 overruns:0 frame:0
  24.           TX packets:101 errors:0 dropped:0 overruns:0 carrier:0
  25.           collisions:0 txqueuelen:1000
  26.           RX bytes:15663 (15.2 KiB)  TX bytes:11959 (11.6 KiB)
  28. lo        Link encap:Local Loopback
  29.           inet addr:127.0.0.1  Mask:255.0.0.0
  30.           inet6 addr: ::1/128 Scope:Host
  31.           UP LOOPBACK RUNNING  MTU:65536  Metric:1
  32.           RX packets:16 errors:0 dropped:0 overruns:0 frame:0
  33.           TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
  34.           collisions:0 txqueuelen:0
  35.           RX bytes:960 (960.0 b)  TX bytes:960 (960.0 b)
  39.    1
  40.    2
  41.    3
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  43.    5
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  74.    36
  78.    1
  79.    2
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  104.    27
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  110.    33
  111.    34
  112.    35
  113.    36
  115. [root@localhost ~]# git
  116. -bash: git: command not found
  117. [root@localhost ~]# yum install -y git
  118. [root@localhost ~]# cd /etc/sysconfig/network-scripts/
  119. [root@localhost network-scripts]# git clone https://github.com/jpetazzo/pipework
  123.    1
  124.    2
  125.    3
  126.    4
  127.    5
  128.    6
  132.    1
  133.    2
  134.    3
  135.    4
  136.    5
  137.    6

pipework是由Docker的工程师Jérôme Petazzoni开发的一个Docker网络配置工具

  1. [root@localhost network-scripts]# ls
  2. ifcfg-br0    ifdown-eth   ifdown-post    ifup          ifup-ippp   ifup-post    ifup-wireless           pipework
  3. ifcfg-eth0   ifdown-ib    ifdown-ppp     ifup-aliases  ifup-ipv6   ifup-ppp     init.ipv6-global
  4. ifcfg-lo     ifdown-ippp  ifdown-routes  ifup-bnep     ifup-isdn   ifup-routes  net.hotplug
  5. ifdown       ifdown-ipv6  ifdown-sit     ifup-eth      ifup-plip   ifup-sit     network-functions
  6. ifdown-bnep  ifdown-isdn  ifdown-tunnel  ifup-ib       ifup-plusb  ifup-tunnel  network-functions-ipv6
  7. [root@localhost network-scripts]# cp pipework/pipework /usr/local/bin/
  8. [root@localhost network-scripts]# cd
  10. [root@localhost ~]# docker run -itd --net=none --name docker_bridge centos_with_httpd:genesis bash 5417847d3edf9381acf4bcc94c5345002521f4500415d835f081b022f6d48723
  11. [root@localhost ~]# docker ps
  12. CONTAINER ID        IMAGE                       COMMAND             CREATED             STATUS              PORTS               NAMES
  13. 5417847d3edf        centos_with_httpd:genesis   "bash"              8 seconds ago       Up 6 seconds                            docker_bridge
  14. [root@localhost ~]# docker exec -it docker_bridge bash
  15. [root@5417847d3edf /]# ifconfig
  16. lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
  17.         inet 127.0.0.1  netmask 255.0.0.0
  18.         inet6 ::1  prefixlen 128  scopeid 0x10<host>
  19.         loop  txqueuelen 0  (Local Loopback)
  20.         RX packets 0  bytes 0 (0.0 B)
  21.         RX errors 0  dropped 0  overruns 0  frame 0
  22.         TX packets 0  bytes 0 (0.0 B)
  23.         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
  24. [root@5417847d3edf /]# exit
  28.    1
  29.    2
  30.    3
  31.    4
  32.    5
  33.    6
  34.    7
  35.    8
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  57.    1
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  64.    8
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  74.    18
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  76.    20
  77.    21
  78.    22
  79.    23
  80.    24
  81.    25
  82.    26
  84. [root@localhost ~]# rpm -Uvh https://repos.fedorapeople.org/openstack/EOL/openstack-grizzly/epel-6/iproute-2.6.32-130.el6ost.netns.2.x86_64.rpm
  87.    1
  91.    1

不升级会报错Object “netns” is unknown, try “ip help”

  1. [root@localhost ~]# pipework br0 docker_bridge 192.168.1.187/24
  2. [root@localhost ~]# docker exec -it docker_bridge bash
  3. [root@5417847d3edf /]# ifconfig
  4. eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
  5.         inet 192.168.1.187  netmask 255.255.255.0  broadcast 192.168.1.255
  6.         inet6 fe80::bcf2:9cff:fe1e:4796  prefixlen 64  scopeid 0x20<link>
  7.         ether be:f2:9c:1e:47:96  txqueuelen 1000  (Ethernet)
  8.         RX packets 7  bytes 528 (528.0 B)
  9.         RX errors 0  dropped 0  overruns 0  frame 0
  10.         TX packets 7  bytes 510 (510.0 B)
  11.         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
  13. lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
  14.         inet 127.0.0.1  netmask 255.0.0.0
  15.         inet6 ::1  prefixlen 128  scopeid 0x10<host>
  16.         loop  txqueuelen 0  (Local Loopback)
  17.         RX packets 0  bytes 0 (0.0 B)
  18.         RX errors 0  dropped 0  overruns 0  frame 0
  19.         TX packets 0  bytes 0 (0.0 B)
  20.         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
  24.    1
  25.    2
  26.    3
  27.    4
  28.    5
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  64.    17
  65.    18
  66.    19
  67.    20
  68.    21

ping一下网关

  1. [root@5417847d3edf /]# ping 192.168.1.1
  2. PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
  3. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=63.1 ms
  4. 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=2.12 ms
  5. ^C
  6. --- 192.168.1.1 ping statistics ---
  7. 2 packets transmitted, 2 received, 0% packet loss, time 1001ms
  8. rtt min/avg/max/mdev = 2.125/32.637/63.150/30.513 ms

转自： http://blog.csdn.net/noob_f/article/details/52895026

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