7
使用Docker容器构建Linux云桌面环境
source link: https://blog.51cto.com/ixdba/5915709
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1、部署docker引擎
只有部署了docker引擎，docker容器才能在任何不同主机环境运行。
[root@master ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
[root@master ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@master ~]# yum makecache fast
[root@master ~]# yum install docker-ce -y
[root@master ~]# systemctl restart docker
[root@master ~]# systemctl enable docker
[root@master ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@master ~]# yum makecache fast
[root@master ~]# yum install docker-ce -y
[root@master ~]# systemctl restart docker
[root@master ~]# systemctl enable docker
2、部署docker-compose
docker-compose是用来做docker的多容器控制，有了docker-compose，我们可以把所有繁复的docker操作全都一条命令，自动化的完成。
编写好docker-compose.yml文件后,只需要运行一句：
docker-compose up -d
即可实现所有容器的启动
要使用docker-compose，需要安装一个docker-compose工具，安装方法很简单，在Linux 系统上直接下载对应的二进制包即可。
[root@localhost ~]# curl -L https://github.com/docker/compose/releases/download/1.28.3/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
[root@localhost ~]# chmod +x /usr/local/bin/docker-compose
[root@localhost ~]# chmod +x /usr/local/bin/docker-compose
3、下载Linux桌面云docker镜像
获取镜像是实现功能的第一步，这里分享一个我已经制作好的Linux云桌面镜像：下载镜像：
docker pull swr.cn-north-1.myhuaweicloud.com/iivey/linux-desk:v1.0
此镜像放在华为云镜像仓库中，可直接下载，无需登录。
4、运行Linux桌面云环境
下载镜像后，就可以直接运行镜像，这样镜像对应的容器服务就运行起来了。
下面是通过docker命令方式运行容器：
docker run -itd --shm-size 4G -p 6080:6080 -e VNC_PASSWD=admin123456 -e GEOMETRY='1366x768' -e DEPTH=32 -v /data3/Downloads:/root/Downloads -v /data3/Documents:/root/Documents -v /data3/Pictures:/root/Pictures -v /data3/Videos:/root/Videos -v /data3/Music:/root/Music -v /data3/Desktop:/root/Desktop --restart unless-stopped --name linuxdesk swr.cn-north-1.myhuaweicloud.com/iivey/linux-desk:v1.0
Docker命令方式运行docker容器，虽然简单，但是命令很长，比较容器出错，其实，也可以通过docker-compose方式启动和管理Linux云桌面环境。
右边是使用docker-compose方式启动Linux云桌面环境对应的docker-compose.yml文件内容。
version: '3.5'
services:
ubuntu-xfce-vnc:
container_name: linux-desk
image: swr.cn-north-1.myhuaweicloud.com/iivey/linux-desk:v1.0
shm_size: "1gb"
ports:
- 5900:5900
- 6080:6080
environment:
- VNC_PASSWD=admin123456
- GEOMETRY=1280x720
- DEPTH=24
volumes:
- ./Downloads:/root/Downloads
- ./Documents:/root/Documents
- ./Pictures:/root/Pictures
- ./Videos:/root/Videos
- ./Music:/root/Music
- ./Desktop:/root/Desktop
restart: unless-stopped
services:
ubuntu-xfce-vnc:
container_name: linux-desk
image: swr.cn-north-1.myhuaweicloud.com/iivey/linux-desk:v1.0
shm_size: "1gb"
ports:
- 5900:5900
- 6080:6080
environment:
- VNC_PASSWD=admin123456
- GEOMETRY=1280x720
- DEPTH=24
volumes:
- ./Downloads:/root/Downloads
- ./Documents:/root/Documents
- ./Pictures:/root/Pictures
- ./Videos:/root/Videos
- ./Music:/root/Music
- ./Desktop:/root/Desktop
restart: unless-stopped
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