04-docker-commit构建自定义镜像

linux环境ddocker环境

容器里面的操作，当容器被销毁了就没有了最好不要把数据存放在容器中我们的实际需求，基础镜像很多无法满足，所以我们需要自定义构建镜像

[yunweijia@localhost ~]$ sudo docker run -it centos:7 /bin/bash

[root@c84f1f4e5c37 /]# yum -y install net-tools[root@c84f1f4e5c37 /]# ifconfigeth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 172.17.0.2  netmask 255.255.0.0  broadcast 172.17.255.255        ether 02:42:ac:11:00:02  txqueuelen 0  (Ethernet)        RX packets 8  bytes 648 (648.0 B)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 0  bytes 0 (0.0 B)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536        inet 127.0.0.1  netmask 255.0.0.0        loop  txqueuelen 1000  (Local Loopback)        RX packets 0  bytes 0 (0.0 B)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 0  bytes 0 (0.0 B)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
[root@c84f1f4e5c37 /]#

[root@c84f1f4e5c37 /]# vi /usr/bin/yunweijiawhile true;do echo yunweijia; sleep 5; done[root@c84f1f4e5c37 /]# exit  # 退出容器

语法：docker commit 容器ID 镜像名:版本号  参数解释：    镜像名：随意，和原镜像无任何关系    版本号：随意，和原版本无任何关系实例：[yunweijia@localhost ~]$ sudo docker commit c84f1f4e5c37 centos:ceshi[yunweijia@localhost ~]$ sudo docker imagesREPOSITORY    TAG       IMAGE ID       CREATED          SIZEcentos        ceshi     adeae577d8b3   13 seconds ago   359MBhello-world   latest    feb5d9fea6a5   4 months ago     13.3kBcentos        7         eeb6ee3f44bd   4 months ago     204MB[yunweijia@localhost ~]$

[yunweijia@localhost ~]$ sudo docker run -d centos:ceshi /bin/bash -c yunweijia291ac4a08a8d7f746ec7690e92241bf17c683edb2b5694fb421ba7ba067d9725[yunweijia@localhost ~]$ [yunweijia@localhost ~]$ sudo docker psCONTAINER ID   IMAGE          COMMAND                  CREATED          STATUS         PORTS     NAMES291ac4a08a8d   centos:ceshi   "/bin/bash -c yunwei…"   8 seconds ago    Up 7 seconds             awesome_wiles

[yunweijia@localhost ~]$ sudo docker logs 291ac4a08a8dyunweijiayunweijiayunweijiayunweijiayunweijiayunweijia[yunweijia@localhost ~]$   # 说明我们指定的脚本在容器中运行呢

[yunweijia@localhost ~]$ sudo docker exec -it 291ac4a08a8d /bin/bash[root@291ac4a08a8d /]# ifconfigeth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 172.17.0.3  netmask 255.255.0.0  broadcast 172.17.255.255        ether 02:42:ac:11:00:03  txqueuelen 0  (Ethernet)        RX packets 8  bytes 648 (648.0 B)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 0  bytes 0 (0.0 B)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536        inet 127.0.0.1  netmask 255.0.0.0        loop  txqueuelen 1000  (Local Loopback)        RX packets 0  bytes 0 (0.0 B)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 0  bytes 0 (0.0 B)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
[root@291ac4a08a8d /]#