Docker

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[[OpenStack]]也在其最新发行版(代号Havana)中引入了Docker。
 
[[OpenStack]]也在其最新发行版(代号Havana)中引入了Docker。
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[[文件:Docker-logo.png|right]]
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==原理==
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Docker 是封装自 [[LXC]] 和 [[cgroup]] 的虚拟化技术。
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Docker的overlay存储驱动建立在OverlayFS文件系统之上,它允许将一个文件系统与另一个文件系统重叠(overlay),在上层的文件系统中记录更改,而下层的文件系统保持不变,OverlayFS从Linux 3.18版本以后已进入内核主线。
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==指南==
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下载Docker,如[https://docs.docker.com/docker-for-mac/install/ macOS] 或
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Docker Toolbox包含:
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* Docker Client
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* Docker Machine
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* Docker Compose
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* Docker Kitematic
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* [[VirtualBox]]
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下载安装[https://www.docker.com/docker-toolbox Docker Toolbox]
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$ docker version
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$ docker-machine version
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$ docker-compose version
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$ docker run debian /bin/echo hello world
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一些配置参考:cat /etc/docker/daemon.json
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{
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  "registry-mirrors": ["https://registry.docker-cn.com"],
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  "insecure-registries": ["172.30.2.245:5000"],
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  "exec-opts": ["native.cgroupdriver=systemd"]
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}
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进入一个正在运行容器,如:
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docker exec -t -i <id/container_name>  /bin/bash
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清理所有Docker容器、容器卷和镜像 [https://www.digitalocean.com/community/tutorials/how-to-remove-docker-images-containers-and-volumes How To Remove Docker Images, Containers, and Volumes]
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docker rm -f $(docker ps -qa)
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docker volume rm $(docker volume ls -q)
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docker rmi -f $(docker images -q)
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清除所有未使用或悬挂(Unused or Dangling)的镜像、容器、卷和网络
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docker container prune
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docker system prune
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==[[Debian]]==
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[https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-debian-10 How To Install and Use Docker on Debian 10]
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$ sudo apt update
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$ sudo apt install apt-transport-https ca-certificates curl gnupg2 software-properties-common
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$ curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
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$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
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$ sudo apt update
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$ apt-cache policy docker-ce
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$ sudo apt install docker-ce
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$ sudo systemctl status docker
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==CentOS==
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[[CentOS]] 8 install Docker
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curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
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or yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
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yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm
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yum install docker-ce
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systemctl start docker
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==Python==
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*[https://github. com/docker/docker-py docker-py]
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*[https://github.com/docker/compose Compose]
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*[https://github.com/docker/openstack-docker openstack-docker]
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*[https://github.com/docker/openstack-heat-docker openstack-heat-docker]
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*[https://github.com/docker/docker-status docker-status]
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*[https://github.com/docker/docker-registry docker-registry] 创建自己的私有注册库
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==项目==
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*[https://github.com/shipyard/shipyard Shipyard]
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*[https://github.com/squidnyan/docker-registry-ui Docker Registry UI]
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*[https://github.com/kevana/ui-for-docker UI For Docker]
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*[[docker/seagull|Seagull]]
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*[https://github.com/openstack/kolla Kolla] - Deploying [[OpenStack]] using Docker
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==部署==
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Docker的多种部署方式:
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* 通过[[OpenStack]]管理Docker,采用Nova Docker Driver方案来集成,京东采用。
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* 通过[[Apache Mesos]]管理Docker,Twitter、Paypal、数人云、灵雀云采用。
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* 通过[[kubernetes]]管理Docker,UCloud采用。
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* 通过[https://github.com/docker/swarm/ Docker Swarm]部署Docker集群。
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[http://docs.huihoo.com/infoq/qconshanghai/2015/%E5%AE%B9%E5%99%A8%E4%B8%8E%E4%BA%91%E8%AE%A1%E7%AE%97/ >>>更多细节]
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*[http://docs.huihoo.com/docker/OpenStack-Heat+Docker.pdf Docker plugin for Heat]
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*[https://github.com/ContainerSolutions/ImageWolf ImageWolf] - Fast Distribution of Docker Images on Clusters
  
 
==文档==
 
==文档==
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*[http://docs.huihoo.com/javaone/2015/CON7506-Java-EE-Application-Servers-Multitenant-or-Containerized-Both.pdf Java EE Application Servers: Multitenant or Containerized? Both!]
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*[http://docs.huihoo.com/javaone/2015/CON6832-Debugging-Java-Apps-in-Containers-No-Heavy-Welding-Gear-Required.pdf Debugging Java Apps in Containers: No Heavy Welding Gear Required]
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*[http://docs.huihoo.com/javaone/2015/BOF7537-Running-Oracle-WebLogic-Server-on-Docker-Challenges-and-Workarounds.pdf Running Oracle WebLogic Server on Docker: Challenges and Workarounds]
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*[http://docs.huihoo.com/go/gopherchina/2015/1-8%20Go%20%e5%9c%a8%e6%8c%81%e7%bb%ad%e4%ba%a4%e4%bb%98%e4%b8%ad%e7%9a%84%e5%ae%9e%e8%b7%b5.pdf Golang, Microservices, Continuous Delivery and Docker]
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*[http://docs.huihoo.com/go/gopherchina/2015/2-8%20docker%e5%8e%9f%e7%90%86%e4%b8%8e%e5%ba%94%e7%94%a8%e5%ae%9e%e8%b7%b5.pdf Docker 原理与应用实践]
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*[http://docs.huihoo.com/infoq/archsummit/bj2015/1219/%e5%9f%ba%e7%a1%80%e6%9e%b6%e6%9e%84%e4%b9%8b%e6%8a%80%e6%9c%af%e6%bc%94%e8%bf%9b%ef%bc%88%e5%8e%82%e5%95%86%e5%85%b1%e5%bb%ba%e4%b8%93%e9%a2%98%ef%bc%89/ArchSummit%e5%8c%97%e4%ba%ac-%e3%80%8aDocker%e6%9e%b6%e6%9e%84%e4%b8%8b%e7%a7%81%e6%9c%89%e4%ba%91%e7%9a%84%e6%9c%ba%e9%81%87%e4%b8%8e%e6%8c%91%e6%88%98%e3%80%8b-%e7%8e%8b%e6%8c%af%e5%a8%81.pdf Docker架构私有云的机遇和挑战]
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*[http://docs.huihoo.com/infoq/archsummit/bj2015/1219/UCloud%e6%8a%80%e6%9c%af%e4%b8%93%e5%9c%ba%ef%bc%9a%e4%bc%81%e4%b8%9a%e5%ae%b9%e5%99%a8%e5%8c%96%e5%ba%94%e7%94%a8%e5%ae%9e%e8%b7%b5%ef%bc%88%e5%8e%82%e5%95%86%e5%85%b1%e5%bb%ba%e4%b8%93%e9%a2%98%ef%bc%89/ArchSummit%e5%8c%97%e4%ba%ac-%e3%80%8a%e7%bb%8f%e9%aa%8c%e5%88%86%e4%ba%ab%ef%bc%9a%e5%a4%a7%e4%bc%97%e7%82%b9%e8%af%84%e7%a7%81%e6%9c%89%e4%ba%91%e5%b9%b3%e5%8f%b0%e4%b9%8bDocker%e5%ae%9e%e8%b7%b5%e3%80%8b-%e7%9b%9b%e5%bb%b6%e6%95%8f.pdf 经验分享:大众点评私有云平台之Docker实践]
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*[http://docs.huihoo.com/infoq/archsummit/bj2015/1219/UCloud%e6%8a%80%e6%9c%af%e4%b8%93%e5%9c%ba%ef%bc%9a%e4%bc%81%e4%b8%9a%e5%ae%b9%e5%99%a8%e5%8c%96%e5%ba%94%e7%94%a8%e5%ae%9e%e8%b7%b5%ef%bc%88%e5%8e%82%e5%95%86%e5%85%b1%e5%bb%ba%e4%b8%93%e9%a2%98%ef%bc%89/ArchSummit%e5%8c%97%e4%ba%ac-%e3%80%8aCoding%e5%ae%b9%e5%99%a8%e5%8c%96%e5%ae%9e%e8%b7%b5%e5%88%86%e4%ba%ab%ef%bc%9aDocker%e7%90%86%e5%bf%b5%e8%a7%a3%e6%9e%90%e4%b8%8e%e6%8a%80%e6%9c%af%e5%a1%ab%e5%9d%91%e3%80%8b-%e5%ad%99%e5%ae%87%e8%81%aa.pdf Coding容器化实践分享:Docker理念解析与技术填坑]
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*[http://docs.huihoo.com/infoq/archsummit/bj2015/1219/UCloud%e6%8a%80%e6%9c%af%e4%b8%93%e5%9c%ba%ef%bc%9a%e4%bc%81%e4%b8%9a%e5%ae%b9%e5%99%a8%e5%8c%96%e5%ba%94%e7%94%a8%e5%ae%9e%e8%b7%b5%ef%bc%88%e5%8e%82%e5%95%86%e5%85%b1%e5%bb%ba%e4%b8%93%e9%a2%98%ef%bc%89/ArchSummit%e5%8c%97%e4%ba%ac-%e3%80%8aDocker%e4%b8%8eUCloud%20DataBase%e7%9a%84%e8%9e%8d%e5%90%88%e5%ae%9e%e8%b7%b5%e3%80%8b-%e5%90%b4%e6%96%8c%e7%82%9c.pdf Docker与UCloud DataBase的融合实践]
 
*[http://docs.huihoo.com/redhat/summit/2015/11381_docker-recipes-for-java-developers.pdf Docker Recipes for Java Developers]
 
*[http://docs.huihoo.com/redhat/summit/2015/11381_docker-recipes-for-java-developers.pdf Docker Recipes for Java Developers]
 
*[http://docs.huihoo.com/redhat/summit/2015/12193_continuous-integration-continuous-delivery-via-containers.pdf Jenkins for continuous delivery of infrastructure via Docker]
 
*[http://docs.huihoo.com/redhat/summit/2015/12193_continuous-integration-continuous-delivery-via-containers.pdf Jenkins for continuous delivery of infrastructure via Docker]
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*[http://docs.huihoo.com/infoq/en/QConLondon-cluster-management-google-201502.pdf Google 容器引擎 Run Docker containers on Google Cloud Platform, powered by Kubernetes,每周启动超过20亿个容器]
 
*[http://docs.huihoo.com/infoq/en/QConLondon-cluster-management-google-201502.pdf Google 容器引擎 Run Docker containers on Google Cloud Platform, powered by Kubernetes,每周启动超过20亿个容器]
 
*[http://docs.huihoo.com/infoq/qconbeijing/2015/day2/%EF%BF%BC%EF%BF%BC%E5%9F%BA%E4%BA%8EDocker%E5%AE%B9%E5%99%A8%E7%9A%84%E4%BA%91%E8%AE%A1%E7%AE%97%E5%B9%B3%E5%8F%B0%E6%90%AD%E5%BB%BA%E5%AE%9E%E6%88%98.pdf 基于Docker容器的云计算平台搭建实战]
 
*[http://docs.huihoo.com/infoq/qconbeijing/2015/day2/%EF%BF%BC%EF%BF%BC%E5%9F%BA%E4%BA%8EDocker%E5%AE%B9%E5%99%A8%E7%9A%84%E4%BA%91%E8%AE%A1%E7%AE%97%E5%B9%B3%E5%8F%B0%E6%90%AD%E5%BB%BA%E5%AE%9E%E6%88%98.pdf 基于Docker容器的云计算平台搭建实战]
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*[http://docs.huihoo.com/docker/Baidu-BAE-and-Docker.pdf Docker在百度BAE的实战分享]、[http://docs.huihoo.com/docker/Docker-in-pratice-from-Baidu.pdf 英文版本]
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*[http://docs.huihoo.com/docker/Docker-at-Spotify.pdf Docker at Spotify]
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[http://docs.huihoo.com/docker/ >>>更多幻灯片]
  
 
==图书==
 
==图书==
*[http://yeasy.gitbooks.io/docker_practice/ 《Docker :从入门到实践》]
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*[http://yeasy.gitbooks.io/docker_practice/ 《Docker:从入门到实践》]
 
*[http://yuedu.baidu.com/ebook/d817967416fc700abb68fca1 《Docker入门实战》百度阅读]
 
*[http://yuedu.baidu.com/ebook/d817967416fc700abb68fca1 《Docker入门实战》百度阅读]
  
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*[http://blog.docker.com/category/baidu/ 百度应用在自己的PaaS平台:Baidu App Engine (BAE)]
 
*[http://blog.docker.com/category/baidu/ 百度应用在自己的PaaS平台:Baidu App Engine (BAE)]
 
*[http://weibo.com/p/1001603811301997572906 大规模Docker集群助力微博迎接春晚峰值挑战]
 
*[http://weibo.com/p/1001603811301997572906 大规模Docker集群助力微博迎接春晚峰值挑战]
 +
*[http://dockone.io/article/416 新浪SCE Docker最佳实践]: SAE于2015年11月推出了基于Kuberntetes/Docker的容器云
 
*[http://p.t.qq.com/longweibo/page.php?lid=4214325636497486906 腾讯云刘永峰:容器技术将构建全新游戏自治系统]
 
*[http://p.t.qq.com/longweibo/page.php?lid=4214325636497486906 腾讯云刘永峰:容器技术将构建全新游戏自治系统]
*[http://dockone.io/article/416 新浪SCE Docker最佳实践]
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*腾讯Docker on Gaia,支撑公司实时计算、游戏云、广点通等不同业务的Docker作业。
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*[http://www.infoq.com/cn/news/2015/08/dianping-container-service 大众点评在2014年7月就基于Docker搭建了私有云平台],目前平台承担了大部分的线上的业务,实例数2800个左右,Docker物理集群300多台。
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*华为CCE容器云: 2015年7月发布公有云战略,12月推出基于[[Kubernetes]]和Docker技术打造的CCE容器云。
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*网易
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*蘑菇街基于Docker的私有云
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*京东在2015年启动了弹性云建设项目,以Docker为核心来构建弹性云,机器统一进行池化,按需进行服务容量伸缩。随着廊坊新数据中心在10月份建设完成并投入使用,所有在线应用在新机房都迁移到了Docker容器中,成功的支持了2015的双11大促。
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*爱奇艺在基于[[Apache Mesos]]、Docker 等技术构建私有 App Engine。
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*美团云Docker
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[https://www.docker.com/customers >>>更多用户]
  
 
==开发==
 
==开发==
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==图集==
 
==图集==
 
<gallery>
 
<gallery>
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image:Container-ecosystem.png|容器生态系统
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image:Docker-Container-App-Lifecycle.png|Docker应用生命周期
 
image:docker-architecture.jpg|架构
 
image:docker-architecture.jpg|架构
 
image:what-is-docker.png|Docker是什么
 
image:what-is-docker.png|Docker是什么
 
image:virtual-machines-and-docker.png|虚拟机和Docker
 
image:virtual-machines-and-docker.png|虚拟机和Docker
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image:virtual-machine-and-container.png|虚拟机和容器
 
image:docker-and-openstack.png|OpenStack
 
image:docker-and-openstack.png|OpenStack
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image:openstack-docker-hadoop.png|与OpenStack/Hadoop的融合
 
image:docker-and-lxc.png|Docker和LXC的关系
 
image:docker-and-lxc.png|Docker和LXC的关系
 
image:docker-at-redhat.png|红帽的方向
 
image:docker-at-redhat.png|红帽的方向
 
image:hadoop-docker.png|Hadoop镜像
 
image:hadoop-docker.png|Hadoop镜像
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image:github-jenkins-docker-ci-workflow.png|持续集成工作流
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image:docker-integrated-jenkins.png|集成Jenkins
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image:iaas-vs-paas.png|IaaS和PaaS
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image:openshift-all-in-one.png|OpenShift
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image:Red-Hat-Container-Stack.png|红帽容器堆栈
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image:OpenShift-Kubernetes-Docker-HDP.png|容器PaaS与大数据
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image:aliyun-docker-repo.png|阿里Docker镜像加速器
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image:harbor-cephfs.png|Harbor私有容器仓库
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image:data-containers.jpg|数据容器
 
</gallery>
 
</gallery>
  
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*[https://www.docker.io/ Docker官网]
 
*[https://www.docker.io/ Docker官网]
 
*[https://github.com/dotcloud/docker Docker @ GitHub]
 
*[https://github.com/dotcloud/docker Docker @ GitHub]
*[https://www.dockboard.org Docker中文社区]
+
*[https://htmlpreview.github.io/?https://github.com/redhat-developer/docker-java/blob/javaone2015/readme.html Docker for Java Developers]
 +
*[https://github.com/veggiemonk/awesome-docker Awesome Docker] [[image:awesome.png]]
 +
*[https://github.com/Friz-zy/awesome-linux-containers Awesome Linux Containers] [[image:awesome.png]]
 +
*[http://dockone.io/ DockOne.io]
 
*[https://wiki.openstack.org/wiki/Docker Docker for OpenStack]
 
*[https://wiki.openstack.org/wiki/Docker Docker for OpenStack]
 
*[https://github.com/dotcloud/docker/tree/master/hack/infrastructure Docker project infrastructure]
 
*[https://github.com/dotcloud/docker/tree/master/hack/infrastructure Docker project infrastructure]
第65行: 第185行:
 
*[http://dockone.io/article/373 Docker日志自动化: ElasticSearch、Logstash、Kibana以及Logspout]
 
*[http://dockone.io/article/373 Docker日志自动化: ElasticSearch、Logstash、Kibana以及Logspout]
 
*[http://segmentfault.com/a/1190000002989928 如何使用 Docker 组件开发 Django 项目?]
 
*[http://segmentfault.com/a/1190000002989928 如何使用 Docker 组件开发 Django 项目?]
 +
*[https://github.com/jcloudpub/speedy Speedy:来自京东的Docker镜像存储系统]
 +
*[https://blog.openshift.com/openshift-v3-deep-dive-docker-kubernetes/ OpenShift V3 Deep Dive Tutorial | The Next Generation of PaaS]
 +
*[http://www.youruncloud.com/blog/105.html 当微服务遇见容器] [http://www.youruncloud.com/blog/100.html Docker定义存储-让应用无痛运行]
  
 +
[[category:virtualization]]
 +
[[category:container]]
 
[[category:cloud computing]]
 
[[category:cloud computing]]
 +
[[category:microservices]]
 
[[category:linux]]
 
[[category:linux]]
 
[[category:OpenStack]]
 
[[category:OpenStack]]
 
[[category:go]]
 
[[category:go]]
[[category:huihoo]]
 

2022年1月14日 (五) 05:06的最后版本

Docker: the Linux container engine

Docker是一款基于轻量级虚拟化技术的容器引擎,使用 Go 语言开发,采用 Apache V2 许可协议。

Docker可以在容器内部快速自动化部署应用,并可以通过内核虚拟化技术(namespaces及cgroups等)来提供容器的资源隔离与安全保障等。由于Docker通过操作系统层的虚拟化实现隔离,所以Docker容器在运行时,不需要类似虚拟机(VM)额外的操作系统开销,提高资源利用率,并且提升诸如IO等方面的性能。

OpenStack也在其最新发行版(代号Havana)中引入了Docker。

Docker-logo.png

目录

[编辑] 原理

Docker 是封装自 LXCcgroup 的虚拟化技术。

Docker的overlay存储驱动建立在OverlayFS文件系统之上,它允许将一个文件系统与另一个文件系统重叠(overlay),在上层的文件系统中记录更改,而下层的文件系统保持不变,OverlayFS从Linux 3.18版本以后已进入内核主线。

[编辑] 指南

下载Docker,如macOS

Docker Toolbox包含:

  • Docker Client
  • Docker Machine
  • Docker Compose
  • Docker Kitematic
  • VirtualBox

下载安装Docker Toolbox

$ docker version
$ docker-machine version
$ docker-compose version
$ docker run debian /bin/echo hello world

一些配置参考:cat /etc/docker/daemon.json

{
  "registry-mirrors": ["https://registry.docker-cn.com"],
  "insecure-registries": ["172.30.2.245:5000"],
  "exec-opts": ["native.cgroupdriver=systemd"]
}

进入一个正在运行容器,如:

docker exec -t -i <id/container_name>  /bin/bash

清理所有Docker容器、容器卷和镜像 How To Remove Docker Images, Containers, and Volumes

docker rm -f $(docker ps -qa)
docker volume rm $(docker volume ls -q)
docker rmi -f $(docker images -q)

清除所有未使用或悬挂(Unused or Dangling)的镜像、容器、卷和网络

docker container prune
docker system prune

[编辑] Debian

How To Install and Use Docker on Debian 10

$ sudo apt update
$ sudo apt install apt-transport-https ca-certificates curl gnupg2 software-properties-common
$ curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
$ sudo apt update
$ apt-cache policy docker-ce
$ sudo apt install docker-ce
$ sudo systemctl status docker


[编辑] CentOS

CentOS 8 install Docker

curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
or yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm
yum install docker-ce
systemctl start docker

[编辑] Python

[编辑] 项目

[编辑] 部署

Docker的多种部署方式:

  • 通过OpenStack管理Docker,采用Nova Docker Driver方案来集成,京东采用。
  • 通过Apache Mesos管理Docker,Twitter、Paypal、数人云、灵雀云采用。
  • 通过kubernetes管理Docker,UCloud采用。
  • 通过Docker Swarm部署Docker集群。

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