一、安装Vagrant
访问vagrant官网Vagrant下载对应系统的Vagrant安装命令行输入vagrant，测试是否安装成功
二、安装Virtual Box
访问virtualbox官网Virtual Box选择左侧的downloads选择下载对应的操作系统版本安装[win10中若出现]安装virtualbox快完成时立即回滚，并提示安装出现严重错误 (1)打开服务 (2)找到Device Install Service和Device Setup Manager，然后启动 (3)再次尝试安装
三、安装Centos7
创建first-docker-centos7文件夹，并进入其中[目录路径中不要有中文字符]在此目录下打开cmd，运行vagrant init centos/7 此时会在当前目录下生成Vagrantfile运行vagrant up [注意不要运行，拉取远端的centos7太慢] 此时会找centos7的镜像，本地有就用本地的，本地没有就会拉取远端的准备centos7的box a. 下载centos box Centos7 b. 将下载好的文件放到指定目录 c. 运行vagrant box add centos/7 D:\迅雷下载\virtualbox.box d. vagrant box list 查看本地的box[这时候可以看到centos/7] 在first-docker-centos7文件夹下创建Vagrantfile文件，文件内容如下：
# -*- mode: ruby -*-
# vi: set ft=ruby :
# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
# The most common configuration options are documented and commented below.
# For a complete reference, please see the online documentation at
# https://docs.vagrantup.com.
# Every Vagrant development environment requires a box. You can search for
# boxes at https://vagrantcloud.com/search.
config.vm.box = "centos/7"
# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
# NOTE: This will enable public access to the opened port
# config.vm.network "forwarded_port", guest: 80, host: 8080
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine and only allow access
# via 127.0.0.1 to disable public access
# config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# config.vm.network "private_network", ip: "192.168.33.10"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
config.vm.network "public_network"
# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"
# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
config.vm.provider "virtualbox" do |vb|
vb.memory = "3000"
vb.name= "my-centos7"
vb.cpus= 2
end
#
# View the documentation for the provider you are using for more
# information on available options.
# Enable provisioning with a shell script. Additional provisioners such as
# Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
# documentation for more information about their specific syntax and use.
# config.vm.provision "shell", inline: <<-SHELL
# apt-get update
# apt-get install -y apache2
# SHELL
end
根据本地的centos7 box创建虚拟机： vagrant up[打开virtual box，可以发现centos7创建成功]
vagrant基本操作 (1)vagrant ssh 进入刚才创建的centos7中 (2)vagrant status 查看centos7的状态 (3)vagrant halt 停止centos7 (4)vagrant destroy 删除centos7 (5)vagrant status 查看当前vagrant创建的虚拟机 (6)Vagrantfile中也可以写脚本命令，使得centos7更加丰富 但是要注意，修改了Vagrantfile，要想使正常运行的centos7生效，必须使用vagrant reload 至此，使用vagrant+virtualbox搭建centos7完成，后面可以修改Vagrantfile对虚拟机进行相应配置
通过vagrant ssh可以进入虚拟机：
通过ip a命令查看当前虚拟机的IP地址：
修改root账号的password:
vi /etc/ssh/sshd_config 修改PasswordAuthentication yes
systemctl restart sshd
现在就可以通过root账号登陆虚拟机了
四、box的打包分发
退出虚拟机 vagrant halt打包 vagrant package --output first-docker-centos7.box得到first-docker-centos7.box将first-docker-centos7.box添加到其他的vagrant环境中 vagrant box add first-docker-centos7 first-docker-centos7.box得到Vagrantfile vagrant init first-docker-centos7根据Vagrantfile启动虚拟机 vagrant up [此时可以得到和之前一模一样的环境，但是网络要重新配置]
五、安装docker
进入centos7 虚拟机卸载之前的docker
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
3. 安装必要的依赖
sudo yum install -y yum-utils \
device-mapper-persistent-data \
lvm2
设置docker仓库
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
添加阿里云镜像阿里云镜像
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://ns2jtf98.mirror.aliyuncs.com"]
}
EOF
安装docker
sudo yum install -y docker-ce docker-ce-cli containerd.io
启动docker
sudo systemctl start docker && sudo systemctl enable docker
测试docker是否安装成功
sudo docker run hello-world
