方法1：docker commit

jiqing@ThinkPad:~$ sudo docker commit 1949036422c3 centos:jiqing[sudo] password for jiqing: sha256:4be35dd8f7b4c975c4cf1d35414147ef4dfadbb7a6e1a11f21cebee1ff12428ejiqing@ThinkPad:~$ sudo docker imagesREPOSITORY                        TAG                 IMAGE ID            CREATED             SIZEcentos                            jiqing              4be35dd8f7b4        11 seconds ago      1.36GBhello-world                       latest              e38bc07ac18e        3 weeks ago         1.85kBimagine10255/centos6-lnmp-php56   latest              ecc74d703eca        18 months ago       1.31GB

jiqing@ThinkPad:~$ sudo docker run -it centos:jiqingStarting nginx:                                            [  OK  ]Starting php-fpm:                                          [  OK  ]Starting sshd:                                             [  OK  ][root@c10a4c3541f5 home]# ifconfigeth0      Link encap:Ethernet  HWaddr 02:42:AC:11:00:02            inet addr:172.17.0.2  Bcast:172.17.255.255  Mask:255.255.0.0          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:45 errors:0 dropped:0 overruns:0 frame:0          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:6345 (6.1 KiB)  TX bytes:0 (0.0 b)lo        Link encap:Local Loopback            inet addr:127.0.0.1  Mask:255.0.0.0          UP LOOPBACK RUNNING  MTU:65536  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:1           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

方法二：docker build

jiqing@ThinkPad:~$ sudo mkdir /docker-buildjiqing@ThinkPad:~$ cd /docker-build/jiqing@ThinkPad:/docker-build$ sudo touch Dockerfile

注，make自动化编译需要Makefile，自动化docker镜像需要Dockerfile

FROM centosMAINTAINER jiqing 
    
     RUN yum -y install httpdADD start.sh /usr/local/bin/start.shADD index.html /var/www/html/index.html
    

创建start.sh并设置为可执行

echo "/usr/sbin/httpd -DFOREGROUND" >  start.shchmod a+x start.sh

创建index.html

echo "docker image build test" > index.html

自定义创建对象

sudo docker build -t centos:httpd /docker-build

启动镜像

sudo docker run -it centos:httpd

开启http服务

start.sh

查看结果