Docker目前支持很多Gnu/Linux平台,使用较多的是Ubuntu与RHEL平台。本文使用作者小白的Ubuntu PC来演示如何安装docker。
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$
sudo
apt-get update
$
sudo
apt-get
install
docker.io
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安装完毕,启动docker,
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$
sudo
service docker.io start
$
sudo
docker info
Containers: 18
Images: 12
Storage Driver: aufs
Root Dir:
/var/lib/docker/aufs
Dirs: 60
Execution Driver: native-0.2
Kernel Version: 3.13.0-55-generic
WARNING: No swap limit support
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然后,使用ifconfig再看一下本机的IP信息,系统里会多出一个docker0的网卡,
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$
ifconfig
docker0 Link encap:Ethernet HWaddr 56:84:7a:fe:97:99
inet addr:172.17.42.1 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::5484:7aff:fefe:9799
/64
Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:103571 errors:0 dropped:0 overruns:0 frame:0
TX packets:168898 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5959403 (5.9 MB) TX bytes:250822609 (250.8 MB)
eth0 Link encap:Ethernet HWaddr 11:11:11:11:11:11
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1
/128
Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:13818 errors:0 dropped:0 overruns:0 frame:0
TX packets:13818 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1315817 (1.3 MB) TX bytes:1315817 (1.3 MB)
veth9538 Link encap:Ethernet HWaddr 1e:5d:32:39:ad:c2
inet6 addr: fe80::1c5d:32ff:fe39:adc2
/64
Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:7 errors:0 dropped:1 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:648 (648.0 B) TX bytes:558 (558.0 B)
wlan0 Link encap:Ethernet HWaddr 10:10:10:10:10:10
inet addr:192.168.1.106 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::ae72:89ff:fef4:358a
/64
Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3740188 errors:0 dropped:0 overruns:0 frame:0
TX packets:2472330 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5267690063 (5.2 GB) TX bytes:246334898 (246.3 MB)
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接下来,进行安装debian的镜像,使用docker search来搜索一下关于debian的镜像,
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$
sudo
docker search debain
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
bailaohe
/java
Docker Image with Oracle JDK7 installed o... 0 [OK]
rangalo
/debian
Debain wheezy with some basic tools like w... 0 [OK]
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安装rangalo/debian的镜像,使用docker pull命令,
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$
sudo
docker pull rangalo
/debian
Pulling repository rangalo
/debian
ce6dc3910f8d: Download complete
511136ea3c5a: Download complete
2e5f1fce06be: Download complete
63f650c4db34: Download complete
431ffbc97c99: Download complete
52fc6fdb293f: Download complete
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查看系统中的docker镜像,使用docker images命令,
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$
sudo
docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu
/wget
nginx_v1 51bc7cd125d7 43 minutes ago 633.6 MB
ubuntu
/wget
nginx a4e70c05a75d 57 minutes ago 579.7 MB
ubuntu
/wget
latest 6c95a7fc2fd2 About an hour ago 134.7 MB
ubuntu latest 6d4946999d4f 2 weeks ago 188.3 MB
ubuntu 12.04 5c97af892079 3 weeks ago 133.4 MB
rangalo
/debian
latest ce6dc3910f8d 12 months ago 124.5 MB
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启动刚刚下载的rangalo/debian镜像,使用docker run命令,
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$
sudo
docker run -i -t rangalo
/debian
/bin/bash
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其中,-i, --interactive
-t, --tty
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root@1fbc03b63a70:/
#
root@1fbc03b63a70:/
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
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
29: eth0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link
/ether
02:53:a8:21:96:34 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.14
/16
scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::53:a8ff:fe21:9634
/64
scope link
valid_lft forever preferred_lft forever
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可以看到,该容器的IP地址为172.17.0.14,我们ping一下我们的宿主机,看是否能够通信?
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root@1fbc03b63a70:/
# ping -c 2 172.17.42.1
PING 172.17.42.1 (172.17.42.1): 48 data bytes
56 bytes from 172.17.42.1: icmp_seq=0 ttl=64
time
=0.167 ms
56 bytes from 172.17.42.1: icmp_seq=1 ttl=64
time
=0.124 ms
--- 172.17.42.1
ping
statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min
/avg/max/stddev
= 0.124
/0
.146
/0
.167
/0
.000 ms
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好了,休息一下吧。
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