Docker容器的網(wǎng)絡管理和網(wǎng)絡隔離的實現(xiàn)
發(fā)布日期：2022-02-05 10:48 | 文章來源：腳本之家
一、Docker網(wǎng)絡的管理
1、Docker容器的方式
1）Docker訪問外網(wǎng)
Docker容器連接到宿主機的Docker0網(wǎng)橋訪問外網(wǎng)；默認自動將docker0網(wǎng)橋添加到docker容器中。
2）容器和容器之間通信
需要管理員創(chuàng)建網(wǎng)橋；將不同的容器連接到網(wǎng)橋上實現(xiàn)容器和容器之間相互訪問。
3）外部網(wǎng)絡訪問容器
通過端口映射或者同步docker宿主機網(wǎng)絡配置實現(xiàn)通信。
2、Docker容器網(wǎng)絡通信的模式
1）bridge
默認容器訪問外網(wǎng)通信使用；依賴docker0網(wǎng)橋。
2）none
需要給容器創(chuàng)建獨立的網(wǎng)絡命名空間；不會給創(chuàng)建的容器配置TCP/IP信息。
3）container
容器和容器通信使用；容器需要共享容器名稱空間，通過共享容器名稱空間實現(xiàn)不同容器通信。
4）host
容器內(nèi)部網(wǎng)絡和宿主機保持同步。
3、配置bridge網(wǎng)絡通信模式
[root@centos01 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
<!--安裝centos7源-->
[root@centos01 ~]# yum -y install docker <!--安裝docker-->
[root@centos01 ~]# systemctl start docker <!--啟動docker-->
[root@centos01 ~]# systemctl enable docker <!--設置docker開機自動啟動-->
[root@centos01 ~]# echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf <!--開啟路由功能-->
[root@centos01 ~]# sysctl -p <!--刷新配置-->
net.ipv4.ip_forward = 1
[root@centos01 ~]# docker pull hub.c.163.com/public/centos:7.2-tools <!--下載鏡像-->
[root@centos01 ~]# docker images <!--查看鏡像-->
REPOSITORY TAG IMAGE ID CREATED SIZE
hub.c.163.com/public/centos 7.2-tools 4a4618db62b9 3 years ago 515 MB
[root@centos01 ~]# docker run -d --net=bridge --name centos7.201 hub.c.163.com/public/centos:7.2-tools
<!--配置創(chuàng)建的容器橋接網(wǎng)絡通信，容器訪問互聯(lián)網(wǎng)使用-->
b308fb5c097fd455073f2f4a280d2660e6943fe1a62d6409e8ebcd3b86469438
[root@centos01 ~]# docker ps <!--查看運行的容器-->
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b308fb5c097f hub.c.163.com/public/centos:7.2-tools "/usr/bin/supervisord" 20 seconds ago Up 19 seconds 22/tcp centos7.201
[root@centos01 ~]# ifconfig <!--查看Docker宿主機IP地址信息-->
docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
[root@centos01 ~]# docker exec -it centos7.201 /bin/bash <!--登錄centos7.201容器-->
[root@b308fb5c097f /]# ifconfig <!--查看IP地址-->
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.2 netmask 255.255.0.0 broadcast 0.0.0.0
[root@b308fb5c097f /]# ping www.baidu.com <!--centos7.201容器ping公網(wǎng)測試-->
PING www.a.shifen.com (39.156.66.18) 56(84) bytes of data.
64 bytes from 39.156.66.18: icmp_seq=1 ttl=50 time=18.4 ms
64 bytes from 39.156.66.18: icmp_seq=2 ttl=50 time=18.3 ms
64 bytes from 39.156.66.18: icmp_seq=3 ttl=50 time=16.9 ms
[root@b308fb5c097f /]# ping 192.168.100.10 <!--ping宿主機IP測試 -->
PING 192.168.100.10 (192.168.100.10) 56(84) bytes of data.
64 bytes from 192.168.100.10: icmp_seq=1 ttl=64 time=0.043 ms
64 bytes from 192.168.100.10: icmp_seq=2 ttl=64 time=0.086 ms
64 bytes from 192.168.100.10: icmp_seq=3 ttl=64 time=0.150 ms
4、配置none網(wǎng)絡通信模式
[root@centos01 ~]# docker run -d --net=none --name centos7.202 hub.c.163.com/public/centos:7.2-tools
<!--配置docker容器不需要連接到網(wǎng)絡，容器無法通信-->
e2c4837d67818e7ef4d7cedf964db21d98cabb594d12091d7f69da4e8fb3f30f
[root@centos01 ~]# docker ps <!--查看運行的容器-->
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e2c4837d6781 hub.c.163.com/public/centos:7.2-tools "/usr/bin/supervisord" 57 seconds ago Up 56 seconds centos7.202
b308fb5c097f hub.c.163.com/public/centos:7.2-tools "/usr/bin/supervisord" 7 minutes ago Up 7 minutes 22/tcp centos7.201
[root@centos01 ~]# docker exec -it centos7.202 /bin/bash <!--登錄centos7.202容器-->
[root@e2c4837d6781 /]# ifconfig <!--查看IP地址-->
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
[root@e2c4837d6781 /]# ping www.baidu.com <!--ping公網(wǎng)發(fā)現(xiàn)是不通的-->
ping: unknown host www.baidu.com
[root@e2c4837d6781 /]#
[root@e2c4837d6781 /]# ping 192.168.100.10 <!--ping宿主機IP地址發(fā)現(xiàn)是不通的-->
connect: Network is unreachable
5、配置host網(wǎng)絡通信模式
[root@centos01 ~]# docker run -d --net=host --name centos7.203 -v /data1 hub.c.163.com/public/centos:7.2-tools
<!--配置運行的容器和宿主機網(wǎng)絡保持同步-->
2911358be486720c4ee93c8de22cd77301236f48c5baf22ea63bb3c54450032e
[root@centos01 ~]# ls /var/lib/docker/volumes/ <!--查看創(chuàng)建的數(shù)據(jù)卷-->
dc755f3b6036f167471435629918d06264e1c2c6a8b175426fa80da36143a87e metadata.db
[root@centos01 ~]# docker ps <!--查看運行的容器-->
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2911358be486 hub.c.163.com/public/centos:7.2-tools "/usr/bin/supervisord" About a minute ago Up About a minute centos7.203
e2c4837d6781 hub.c.163.com/public/centos:7.2-tools "/usr/bin/supervisord" 15 minutes ago Up 15 minutes centos7.202
b308fb5c097f hub.c.163.com/public/centos:7.2-tools "/usr/bin/supervisord" 21 minutes ago Up 21 minutes 22/tcp centos7.201
[root@centos01 ~]# docker exec -it centos7.203 /bin/bash <!--登錄到centos7.203容器-->
[root@centos01 /]# ifconfig <!--查看IP地址-->
docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.10 netmask 255.255.255.0 broadcast 192.168.100.255
ens34: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.126 netmask 255.255.255.0 broadcast 192.168.0.255
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
vethc39178a: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::7c4b:a6ff:fe1c:a37f prefixlen 64 scopeid 0x20<link>
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
[root@centos01 ~]# docker exec -it centos7.203 /bin/bash <!--登錄centos7.203容器-->
[root@centos01 /]# ping www.baidu.com <!--ping公網(wǎng)測試-->
PING www.a.shifen.com (39.156.66.14) 56(84) bytes of data.
64 bytes from 39.156.66.14: icmp_seq=1 ttl=51 time=20.0 ms
64 bytes from 39.156.66.14: icmp_seq=2 ttl=51 time=19.1 ms
64 bytes from 39.156.66.14: icmp_seq=3 ttl=51 time=15.9 ms
[root@centos01 /]# ping 192.168.100.10 <!--ping宿主機IP地址測試-->
PING 192.168.100.10 (192.168.100.10) 56(84) bytes of data.
64 bytes from 192.168.100.10: icmp_seq=1 ttl=64 time=0.020 ms
64 bytes from 192.168.100.10: icmp_seq=2 ttl=64 time=0.060 ms
64 bytes from 192.168.100.10: icmp_seq=3 ttl=64 time=0.030 ms
<!---Centos7.203容器安裝Nginx-->
[root@centos01 ~]# cp /mnt/nginx-1.6.0.tar.gz ./ <!--拷貝Nginx壓縮包-->
[root@centos01 ~]# ls
anaconda-ks.cfg initial-setup-ks.cfg nginx-1.6.0.tar.gz
[root@centos01 ~]# cp nginx-1.6.0.tar.gz /var/lib/docker/volumes/dc755f3b6036f167471435629918d06264e1c2c6a8b175426fa80da36143a87e/_data/
<!--將Nginx壓縮包通過數(shù)據(jù)卷共享到centos7.203容器-->
[root@centos01 ~]# docker exec -it centos7.203 /bin/bash <!--登錄到centos7.203容器-->
[root@centos01 /]# ls
anaconda-post.log bin data1 dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
[root@centos01 /]# cd data1/ <!--查看宿主機共享的數(shù)據(jù)-->
[root@centos01 data1]# ls
nginx-1.6.0.tar.gz
[root@centos01 /]# yum -y install pcre-devel zlib-devel <!--安裝Nginx依賴程序-->
[root@centos01 /]# useradd -M -s /sbin/nologin nginx <!--創(chuàng)建管理Nginx用戶-->
[root@centos01 /]# tar zxvf /data1/nginx-1.6.0.tar.gz -C /usr/src/ <!--解壓縮Nginx包-->
[root@centos01 /]#yum -y install gcc pcre-devel zlib-devel make <!--先安裝依賴-->
[root@centos01 /]# cd /usr/src/nginx-1.6.0/
[root@centos01 nginx-1.6.0]# ./configure --prefix=/usr/local/nginx --user=nginx --with-http_stub_status_module && make && make install
<!--配置Nginx并 編譯安裝nginx-->
[root@centos01 nginx-1.6.0]# ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/ <!--優(yōu)化Nginx執(zhí)行命令-->
[root@centos01 nginx-1.6.0]# echo "www.docker.nginx.com" > /usr/local/nginx/html/index.html
<!--修改Nginx網(wǎng)站主頁內(nèi)容-->
[root@centos01 nginx-1.6.0]# ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/
<!--在centos7.203容器中啟動Nginx服務-->
[root@centos01 nginx-1.6.0]# netstat -anptu | grep nginx <!--監(jiān)聽Nginx服務端口號是否正在運行-->
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 6268/nginx: master
[root@centos01 ~]# curl http://192.168.100.10 <!--docker宿主機訪問centos7.203容器中的nginx-->
www.docker.nginx.com
[root@centos01 nginx-1.6.0]# cat /usr/local/nginx/logs/access.log
<!--查看centos7.203容器中成功訪問Nginx的日志-->
192.168.100.10 - - [12/May/2020:21:42:47 +0800] "GET / HTTP/1.1" 200 21 "-" "curl/7.29.0"
6、配置docker0網(wǎng)卡參數(shù)
[root@centos01 ~]# ifconfig <!--查看docker宿主機IP地址-->
docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
[root@centos01 ~]# systemctl stop docker <!--停止docker服務-->
[root@centos01 ~]# ip link set dev docker0 down <!--停止docker0網(wǎng)橋-->
[root@centos01 ~]# brctl delbr docker0 <!--刪除系統(tǒng)默認的docker0網(wǎng)橋-->
[root@centos01 ~]# brctl addbr docker0 <!--創(chuàng)建新的網(wǎng)橋，名字是docker0-->
[root@centos01 ~]# ip addr add 192.168.20.1/24 dev dokcer0 <!--新的網(wǎng)橋docker0配置IP地址-->
[root@centos01 ~]# ip link set dev docker0 up <!--啟動新的docker0網(wǎng)橋-->
[root@centos01 ~]# vim /etc/docker/daemon.json
<!--修改docker配置文件加載新的網(wǎng)橋docker0-->
{"registry-mirrors":["https://6kx4zyno.mirror.aliyuncs.com"]}
{"bip":"192.168.20.1/24"} <!--加此行-->
[root@centos01 ~]# systemctl start docker <!--啟動docker服務-->
[root@centos01 ~]# ifconfig <!--查看docker宿主機IP詳細信息-->
docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.20.1 netmask 255.255.255.0 broadcast 0.0.0.0
[root@centos01 ~]# docker run -it -d --name centos7.2v1 hub.c.163.com/public/centos:7.2-tools <!--創(chuàng)建一個容器在后臺運行-->
d0b5392e60cef37f3c44d79a9fb73916720cfc44faa7b73862bee05fb2d6ce7b
[root@centos01 ~]# docker exec -it centos7.2v1 /bin/bash <!--登錄centos7.2v1容器-->
[root@d0b5392e60ce /]# ifconfig <!--查看IP地址詳細信息-->
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.20.2 netmask 255.255.255.0 broadcast 0.0.0.0
二、Docker網(wǎng)絡隔離
1、Docker網(wǎng)絡隔離原理
需要管理創(chuàng)建網(wǎng)絡空間名稱；將不同的容器加載到不同的網(wǎng)絡空間名稱中實現(xiàn)隔離；默認不配置網(wǎng)絡隔離默認給容器分配的docker0網(wǎng)絡空間名稱。
2、Docker容器自帶的網(wǎng)絡空間名稱類型
- bridge：容器橋接到docker0網(wǎng)橋上；
- host：容器同步docker宿主機的網(wǎng)絡配置信息；
- none：不創(chuàng)建網(wǎng)絡，docker容器不需要配置TCP/IP信息；
3、配置Docker網(wǎng)絡名稱空間隔離
[root@centos01 ~]# docker network ls <!--查看docker默認的網(wǎng)絡名稱空間-->
NETWORK ID NAME DRIVER SCOPE
8bb953004416 bridge bridge local
2c18234cad82 host host local
67860e823c36 none null local
[root@centos01 ~]# docker network create -d bridge liyanxin <!--創(chuàng)建網(wǎng)絡名稱空間-->
0c69de4672ec173dc4c60b19e0bf93b361f45a804859f7bc2105d85ca83b1169
[root@centos01 ~]# docker network create -d bridge gongsunli <!--創(chuàng)建網(wǎng)絡名稱空間-->
35687468c9034262173a96e9c23e045cbb8b7ffa6648fc84e015504740815001
[root@centos01 ~]# ifconfig <!--查看docker宿主機網(wǎng)卡信息-->
br-0c69de4672ec: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.18.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
br-35687468c903: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.19.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
[root@centos01 ~]# docker run -it -d --name centos6.701 --network=liyanxin hub.c.163.com/public/centos:6.7-tools
<!--創(chuàng)建運行的容器添加到liyanxin網(wǎng)絡名稱空間中隔離-->
b85a2d8419a98756369ddc3b78247d3d42c178e8e563a936fe973f2f6611f951
[root@centos01 ~]# docker exec -it centos6.701 /bin/bash <!--登錄centos6.701容器-->
[root@b85a2d8419a9 /]# ifconfig <!--查看IP地址-->
eth0 Link encap:Ethernet HWaddr 02:42:AC:12:00:02
inet addr:172.18.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
[root@centos01 ~]# docker run -it -d --name centos6.702 --network=gongsunli hub.c.163.com/public/centos:6.7-tools
<!--創(chuàng)建運行的容器添加到gongsunli網(wǎng)絡名稱空間中隔離-->
9af0fb7b85af3270f3c7c44b62438f436b22289ac0a7604d6ed522604b7b185f
[root@centos01 ~]# docker exec -it centos6.702 /bin/bash <!--登錄centos6.702容器-->
[root@9af0fb7b85af /]# ifconfig <!--查看IP地址-->
eth0 Link encap:Ethernet HWaddr 02:42:AC:13:00:02
inet addr:172.19.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
三、配置網(wǎng)橋?qū)崿F(xiàn)網(wǎng)絡隔離
1、配置網(wǎng)橋?qū)崿F(xiàn)網(wǎng)絡隔離的目的
實現(xiàn)Docker宿主機的容器跨Docker宿主機的容器通信使用。
2、配置網(wǎng)橋?qū)崿F(xiàn)網(wǎng)絡隔離原理
將物理網(wǎng)卡橋接到創(chuàng)建的網(wǎng)橋網(wǎng)卡上；給網(wǎng)橋網(wǎng)卡配置IP地址；創(chuàng)建容器加載網(wǎng)橋網(wǎng)卡實現(xiàn)；docker宿主機容器跨docker宿主機容器通信；管理員管理docker宿主機通過網(wǎng)橋網(wǎng)卡進行遠程管理
3、配置docker網(wǎng)橋?qū)崿F(xiàn)網(wǎng)絡隔離
[root@centos01 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens32
<!--修改docker宿主機物理網(wǎng)卡橋接到網(wǎng)橋網(wǎng)卡br0-->
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
NAME=ens32
DEVICE=ens32
ONBOOT=yes
BRIDGE=br0 <!--添加此行-->
[root@centos01 ~]# cp /etc/sysconfig/network-scripts/ifcfg-ens32 /etc/sysconfig/network-scripts/ifcfg-br0
<!--創(chuàng)建并生成br0網(wǎng)橋-->
[root@centos01 ~]# vim /etc/sysconfig/network-scripts/ifcfg-br0 <!--編輯br0網(wǎng)卡配置文件-->
TYPE=Bridge <!--修改此行-->
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
NAME=br0 <!--修改名字-->
DEVICE=br0 <!--修改名字-->
ONBOOT=yes
IPADDR=192.168.100.10 <!--添加宿主機IP地址-->
NETMASK=255.255.255.0
[root@centos01 ~]# systemctl restart network <!--重新啟動docker宿主機網(wǎng)卡服務-->
[root@centos01 ~]# ifconfig <!--查看docker宿主機網(wǎng)卡信息-->
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.10 netmask 255.255.255.0 broadcast 192.168.100.255
br-0c69de4672ec: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.18.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
br-35687468c903: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.19.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 00:0c:29:18:d3:26 txqueuelen 1000 (Ethernet)
ens34: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::4ad2:dd37:4341:5d8e prefixlen 64 scopeid 0x20<link>
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
veth7b0bb5f: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::ccd3:86ff:fee6:5725 prefixlen 64 scopeid 0x20<link>
veth7e0f471: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::684c:fdff:fe13:b436 prefixlen 64 scopeid 0x20<link>
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
[root@centos01 ~]# yum -y install git <!--docker宿主機安裝git-->
[root@centos01 ~]# git clone https://github.com/jpetazzo/pipework
<!--下載docker容器網(wǎng)絡管理工具pipework-->
[root@centos01 ~]# cp pipework/pipework /usr/local/bin/ <!--優(yōu)化管理命令-->
[root@centos01 ~]# chmod +x /usr/local/bin/pipework <!--添加執(zhí)行權(quán)限-->
[root@centos01 ~]# docker run -d --name centos6.703 --network=none hub.c.163.com/public/centos:6.7-tools
<!--通過鏡像運行容器-->
adea0ad48bdde947ec595382d96cba06eb6522ec046e9b3c7bfcb1edb5c84545
[root@centos01 ~]# pipework br0 centos6.703 192.168.100.101/24
<!--給centos6.703容器配置IP地址-->
[root@centos01 ~]# docker exec -it centos6.703 /bin/bash <!--登錄centos6.703容器-->
[root@adea0ad48bdd /]# ifconfig <!--查看IP地址-->
eth1 Link encap:Ethernet HWaddr FA:3A:9D:ED:C0:FF
inet addr:192.168.100.101 Bcast:192.168.100.255 Mask:255.255.255.0
[root@adea0ad48bdd /]# ping 192.168.100.10
PING 192.168.100.10 (192.168.100.10) 56(84) bytes of data.
64 bytes from 192.168.100.10: icmp_seq=1 ttl=64 time=0.100 ms
64 bytes from 192.168.100.10: icmp_seq=2 ttl=64 time=0.097 ms
64 bytes from 192.168.100.10: icmp_seq=3 ttl=64 time=0.039 ms
4、配置docker宿主機容器和docker宿主機容器通信
[root@centos02 ~]# ping www.baidu.com <!--再新開一臺服務器，連接公網(wǎng)，安裝docker-->
PING www.a.shifen.com (39.156.66.18) 56(84) bytes of data.
64 bytes from 39.156.66.18 (39.156.66.18): icmp_seq=1 ttl=51 time=19.5 ms
64 bytes from 39.156.66.18 (39.156.66.18): icmp_seq=2 ttl=51 time=17.3 ms
64 bytes from 39.156.66.18 (39.156.66.18): icmp_seq=3 ttl=51 time=18.1 ms
[root@centos02 ~]# cd /etc/yum.repos.d/
[root@centos02 yum.repos.d]# ls
local.repo
[root@centos02 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
<!--下載centos7源-->
[root@centos02 ~]# yum install docker -y <!--安裝docker-->
[root@centos02 ~]# systemctl start docker <!--啟動docker-->
[root@centos02 ~]# systemctl enable docker <!--設置開機自動啟動-->
[root@centos02 ~]# docker pull hub.c.163.com/public/centos:6.7-tools <!--下載鏡像-->
[root@centos02 ~]# docker images <!--查看鏡像-->
REPOSITORY TAG IMAGE ID CREATED SIZE
hub.c.163.com/public/centos 6.7-tools b2ab0ed558bb 3 years ago 602 MB
[root@centos02 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens32
<!--修改docker宿主機網(wǎng)卡配置信息橋接到br0網(wǎng)卡 -->
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
NAME=ens32
DEVICE=ens32
ONBOOT=yes
BRIDGE=br0 <!--添加此行-->
[root@centos02 ~]# cp /etc/sysconfig/network-scripts/ifcfg-ens32 /etc/sysconfig/network-scripts/ifcfg-br0 <!--創(chuàng)建并生成br0網(wǎng)橋-->
[root@centos02 ~]# vim /etc/sysconfig/network-scripts/ifcfg-br0 <!--編輯br0網(wǎng)卡配置文件-->
TYPE=Bridge <!--修改為Bridge-->
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
NAME=br0 <!--修改名字-->
DEVICE=br0 <!--修改為br0-->
ONBOOT=yes
IPADDR=192.168.100.20 <!--添加宿主機IP地址-->
NETMASK=255.255.255.0
[root@centos02 ~]# systemctl restart network <!--重新啟動docker宿主機網(wǎng)卡服務-->
[root@centos02 ~]# ifconfig <!--查看docker宿主機網(wǎng)卡信息-->
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.20 netmask 255.255.255.0 broadcast 192.168.100.255
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 172.17.0.1 netmask 255.255.0.0 broadcast 0.0.0.0
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 00:0c:29:97:5c:9f txqueuelen 1000 (Ethernet)
ens34: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.104 netmask 255.255.255.0 broadcast 192.168.0.255
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
[root@centos02 ~]# yum -y install git <!--安裝git-->
[root@centos02 ~]# git clone https://github.com/jpetazzo/pipework
<!--下載docker容器網(wǎng)絡管理工具pipework-->
[root@centos02 ~]# cp pipework/pipework /usr/local/bin/ <!--優(yōu)化管理命令-->
[root@centos02 ~]# chmod +x /usr/local/bin/pipework <!--添加執(zhí)行權(quán)限-->
[root@centos02 ~]# docker run -d --name centos6.7 --network=none hub.c.163.com/public/centos:6.7-tools <!--通過進行運行容器-->
abec0a6bd3822a2fd702dc44d1cf3043648aadd1a661e577c23701e30ee9df7a
[root@centos02 ~]# pipework br0 centos6.7 192.168.100.102/24
<!--給centos6.7容器配置IP地址-->
[root@centos02 ~]# docker exec -it centos6.7 /bin/bash <!--登錄centos6.7容器-->
[root@abec0a6bd382 /]# ifconfig <!--查看IP地址-->
eth1 Link encap:Ethernet HWaddr EE:01:B7:99:90:1C
inet addr:192.168.100.102 Bcast:192.168.100.255 Mask:255.255.255.0
[root@abec0a6bd382 /]# ping 192.168.100.101 <!---->
PING 192.168.100.101 (192.168.100.101) 56(84) bytes of data.
64 bytes from 192.168.100.101: icmp_seq=1 ttl=64 time=0.660 ms
64 bytes from 192.168.100.101: icmp_seq=2 ttl=64 time=0.865 ms
64 bytes from 192.168.100.101: icmp_seq=3 ttl=64 time=0.382 ms
[root@abec0a6bd382 /]# ping 192.168.100.10 <!---->
PING 192.168.100.10 (192.168.100.10) 56(84) bytes of data.
64 bytes from 192.168.100.10: icmp_seq=1 ttl=64 time=0.632 ms
64 bytes from 192.168.100.10: icmp_seq=2 ttl=64 time=0.732 ms
64 bytes from 192.168.100.10: icmp_seq=3 ttl=64 time=0.796 ms
[root@abec0a6bd382 /]# ping 192.168.100.20 <!---->
PING 192.168.100.20 (192.168.100.20) 56(84) bytes of data.
64 bytes from 192.168.100.20: icmp_seq=1 ttl=64 time=0.144 ms
64 bytes from 192.168.100.20: icmp_seq=2 ttl=64 time=0.094 ms
64 bytes from 192.168.100.20: icmp_seq=3 ttl=64 time=0.043 ms
到此這篇關(guān)于Docker容器的網(wǎng)絡管理和網(wǎng)絡隔離的實現(xiàn)的文章就介紹到這了,更多相關(guān)Docker 網(wǎng)絡管理和網(wǎng)絡隔離內(nèi)容請搜索本站以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持本站！
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