安装ubuntu镜像
docker pull ubuntu

启动ubuntu
docker run -ti ubuntu /bin/bash
进入shell

在ubuntu中安装subversion
1)apt-get update
2)apt-get install nano
3)修改ubuntu的下载源 nano /etc/apt/sources.list
用阿里的替换

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse

4)安装subversion
apt-get install subversion

建好svn仓库，设置参数，参考 Ubuntu使用svn

将本container保存为docker的镜像，不保存的话前面安装配置的东西就都丢失了
docker commit 1979cf3371fb(确认好container的id) ubuntu-svn

启动刚保存的ubuntu-svn镜像
docker run -ti -p 3691:3690 ubuntu-svn sh -c "svnserve -d -r /svn && /bin/bash"
-p 3691:3690是把svn的默认端口3690映射给宿主机
sh -c 用于执行多条命令， 要先启用svn服务，然后进到shell

宿主机访问docker中的svn服务
确认docker的ip