docker-- environment to build

    My computer is win10, win10 although it also began to support docker, but in linux machine will be more suitable, so I'll use VMware to create a linux virtual machine --Centos7

Install a virtual machine than that, now installed docker

1, delete docker (if any)

yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-selinux \
                  docker-engine-selinux \
                  docker-engine

2, install some systems the necessary tools

sudo yum install -y yum-utils device-mapper-persistent-data lvm2

3, get yum source of docker

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4, yum update cache

yum makecache fast

5, the installation docker

yum -y install docker-ce

6, start docker

systemctl start docker

7, test run

docker run hello-world

 

8, because it is to learn, so I also installed some tools

yum install -y git vim gcc glibc-static telnet bridge-utils net-tools

 

9, see the image locally owned, hello world is downloaded when run seventh step image.

[root@localhost ~]# docker image ls
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
hello-world         latest              fce289e99eb9        6 months ago        1.84kB
[root@localhost ~]# 

 

image follows, bootfs is the kernel, the top has a different base image, which is a variety of distributions, Centos, Ubuntu, Debian, etc., can be mounted on the base image software (eg apache) to form a new image # 2, in the image mysql installation # 2 may be formed on the new image # 4,

image2 image # 4 and can share the same layer, which is base image.