制作自己的镜像(一)

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制作自己的镜像(一)

对容器进行修改进行制作

我们运行个容器并进入,并进行定制化(安装修改)

[root@srv00 ~]# docker run -it centos
[root@8a15586148ee /]# cat << EOF > /etc/yum.repos.d/nginx.repo
> [nginx]
> name=nginx repo
> baseurl=http://nginx.org/packages/centos/7/\$basearch/ 
> gpgcheck=0
> enabled=1
> EOF
[root@8a15586148ee /]# yum install -y nginx
[root@8a15586148ee /]# exit

对容器的修改进行保存.有点像git commit

[root@srv00 ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                          PORTS                     NAMES
8a15586148ee        centos              "/bin/bash"         21 minutes ago      Exited (0) About a minute ago                             naughty_dubinsky
[root@srv00 ~]# docker commit -m "install nginx" -a "hippo" 8a15586148ee hippo/nginx:v1.10
sha256:1e20546f8434d72cb350ae2081fc77690bdc599dbd984b5cdec09a7868013042

-m 注释,-a 作者,8a15586148ee容器id,hippo/nginx镜像名,v1.10是tag名

查看下创建的镜像

[root@srv00 ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED              SIZE
hippo/nginx         v1.10               1e20546f8434        About a minute ago   281.1 MB
centos              latest              8596123a638e        2 days ago           196.7 MB

运行一下试试

[root@srv00 ~]# docker run -d -p 80 hippo/nginx:v1.10 nginx -g "daemon off;" 
616d942216ee7050ecff07ca66d2d7583d4093820e9d1448f96b417d7d779408
[root@srv00 ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS                          PORTS                     NAMES
616d942216ee        hippo/nginx:v1.10   "nginx -g 'daemon off"   4 seconds ago        Up 2 seconds                    0.0.0.0:32770->80/tcp     high_shockley
[root@srv00 ~]# curl -L localhost:32770




......

-d 后台运行,-p让容器端口映射到主机上.通过docker ps看到是映射到32770上. nginx -g "daemon off;"容器中运行的命令需要在前台运行.否则启动容器后,会马上退出.

未完待续...

//END

转载于:https://my.oschina.net/hippora/blog/678619