dockerfile就是用来构建docker镜像的构建文件,就是一个命令脚本。由于镜像是一层一层的,脚本也是一个个的命令,代表一层一层的镜像。
dockerfile也可以实现挂载,示例如下:
我们在/home/docker-test-volume的dockerfile1里写入如下脚本
FROM centos
VOLUME ["volume01","volume02"]
CMD echo "------end-----"
CMD /bin/bash
[root@wangstudy docker-test-volume]# docker build -f dockerfile1 -t wang/centos .
Sending build context to Docker daemon 2.048kB
Step 1/4 : FROM centos
---> 470671670cac
Step 2/4 : VOLUME ["volume01","volume02"]
---> Running in afcfd0ed0d77
Removing intermediate container afcfd0ed0d77
---> 4936b8e8924a
Step 3/4 : CMD echo "------end-----"
---> Running in 5cde4d48d667
Removing intermediate container 5cde4d48d667
---> fe92d9708f50
Step 4/4 : CMD /bin/bash
---> Running in a28609ac50e3
Removing intermediate container a28609ac50e3
---> 531f66453bed
Successfully built 531f66453bed
Successfully