利用febootstrap制作镜像

安装基本的工具

yum install epel-release
yum clean all
yum install febootstrap

离线安装febootstrap

centos7上没有febootstrap，需要从 centos上复制或者自行下载

# febootstrap下载地址链接：https://pan.baidu.com/s/1rPxp3-G1KryX9slJ9OrakA   提取码：ih72 

rpm -Uvh *.rpm --nodeps --force

制作镜像（在物理机上执行）

# 1.创建安装文件夹
mkdir /home/centos7

# 2.执行指令
febootstrap -i bash -i wget -i yum -i iputils -i iproute -i man -i vim -i openssh-server -i openssh-clients -i tar -i p7zip -i net-tools -i "GNOME Desktop" -i  tigervnc-server -i tigervnc-server-module -i gnome-classic-session -i gnome-terminal  -i nautilus-open-terminal -i control-center -i liberation-mono-fonts -i bzip2 centos7.6 /home/centos7 http://mirrors.163.com/centos/7.6.1810/os/x86_64/
#(-i 安装package， centos7 操作系统版本，/home/centos7安装目录，最后是源地址)


### 3.执行结果如下
Complete!
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory

load镜像

tar -c .|docker import - centos7:v1

/home/edu/novnc/novnc/noVNC-1.0.0/utils/websockify/run --web /home/edu/novnc/novnc/noVNC-1.0.0 --target-config /home/edu/novnc/novnc/vnc_tokens 6080

制作ssh可登陆

FROM centos7.6:v1
MAINTAINER liuyunsheng
WORKDIR /root
USER 0

RUN echo "root:111111" | chpasswd \
&& echo "root ALL=(ALL)  ALL" >> /etc/sudoers


EXPOSE 22
CMD ["/usr/sbin/init"]

特权模式启动容器

docker run --privileged  -ti  centos7:ssh /usr/sbin/init

制作vnc服务

#复制vncserver@:1.service即可
cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service

vncserver@:1.service内容

[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
Type=forking

# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/sbin/runuser -l <USER> -c "/usr/bin/vncserver %i"
PIDFile=/home/<USER>/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target

vncserver@:1.service内容修改为root

[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
Type=forking

# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/sbin/runuser -l root -c "/usr/bin/vncserver %i"
PIDFile=/root/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target

使服务生效

vncpasswd    #为root用户设置密码，为123456
systemctl daemon-reload
systemctl start vncserver@:1.service
systemctl enable vncserver@:1.service 
systemctl status vncserver@:1.service