这期内容当中小编将会给大家带来有关怎么实现docker环境搭建,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
vagrant、virtualbox、centos7、xshell:链接:https://pan.baidu.com/s/1iilSiJgOQ8Dk0Ol2JcZNzw 密码:kybq
官网下载:
Vagrant:https://www.vagrantup.com/
VirtualBox:https://www.virtualbox.org/
1、创建一个存放contos7的文件夹、并进入该目录(目录不要用中文)
2、在此目录输入cmd,运行:vagrant init centos/7,在此目录会生成一个Vagrantfile。
修改Vagrantfile:
# -*- 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. # 安装虚拟机 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 If you disable this, then # boxes will only be checked for updates when the user runs # `vagrant box outdated`.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. # 共用网络 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| # # Display the VirtualBox GUI when booting the machine # vb.gui = true # # # Customize the amount of memory on the VM: # vb.memory = "1024" # end config.vm.provider "virtualbox" do |vb| vb.memory = "3000" vb.name= "xj-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
3、将virtualbox.box文件添加到vagrant管理的镜像中
如文件virtualbox.box在E:\centOs\目录下:
vagrant box add centos/7 E:\centOs\virtualbox.box
4、查看本地是否安装成功:vagrant box list
5、启动contos7:vagrant up
进入创建的contos7:vagrant ssh
查看centos7状态:vagrant status
停止contos7:vagrant halt
删除contos7:vagrant destroy
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
1、查看contos7信息:vagrant ssh-config
关注IP:127.0.0.1、prot:2222、用户名/密码:vagrant/vagrant
文件:Identityfile指向的文件private-key
2、root设置密码:
sudo -i
vi /etc/ssh/sshd_config
修改PasswordAuthentication yes并保存
passwd root
systemctl restart sshd
使用账号root,密码root进行登录
1、退出虚拟机:vagrant halt
2、打包:vagrant package --output first-docker-centos7.box
3、得到first-docker-centos7.box
4、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
5、得到Vagrantfile:vagrant init first-docker-centos7
6、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]
1、如果非root用户登陆需在命令前面加上sudo,或者将当前用户添加到docker用户组;
sudo groupadd docker #添加docker用户组 sudo gpasswd -a $USER docker #将登陆用户加入到docker用户组中 newgrp docker #更新用户组
2、卸载之前安装的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
4、添加仓库:
官网仓库:
sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo
阿里云仓库:
sudo yum-config-manager \ --add-repo \ http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
设置阿里云加速器需注销阿里云账号:https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors
5、安装docker:
sudo yum install -y docker-ce docker-ce-cli containerd.io
6、启动docker:
sudo systemctl start docker
7、测试docker
sudo docker run hello-world
01 创建tomcat容器 下载镜像:docker pull tomcat 运行tomcat把8080端口映射到contos7的9090端口:docker run -d --name my-tomcat -p 9090:8080 tomcat 访问方式:contos7IP:9090(如果404检查webapps文件是否空文件,webapps.dist有内容) rm -rf webapps mv webapps.dist webapps 03 进入到容器里面 docker exec -it containerid /bin/bash docker pull 拉取镜像到本地 docker run 根据某个镜像创建容器 -d 让容器在后台运行,其实就是一个进程 --name 给容器指定一个名字 -p 将容器的端口映射到宿主机的端口 docker exec -it 进入到某个容器中并交互式运行
上述就是小编为大家分享的怎么实现docker环境搭建了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注亿速云行业资讯频道。
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