Docker簡介

Docker?是一個開源的應(yīng)用容器引擎，讓開發(fā)者可以打包他們的應(yīng)用以及依賴包到一個可移植的容器中，然后發(fā)布到任何流行的?Linux?機器上，也可以實現(xiàn)虛擬化。容器是完全使用沙箱機制，相互之間不會有任何接口（類似 iPhone 的 app）。幾乎沒有性能開銷,可以很容易地在機器和數(shù)據(jù)中心中運行。最重要的是,他們不依賴于任何語言、框架包括系統(tǒng)。?
前提

首先，你的Centos的系統(tǒng)一定要是64位的，不管版本是什么。并且內(nèi)核版本至少是3.10以上。?
用以下命令去查看你的內(nèi)核版本：

$ uname -r 3.10.0-229.el7.x86_64

最后，建議你更新你的系統(tǒng)，因為最新內(nèi)核可能會修復(fù)了舊版本的一些bug。

安裝

用yum安裝

用具有sudo或者root權(quán)限的用戶登錄系統(tǒng)。

確保你的yum包已經(jīng)更新

$ sudo yum update

添加yum倉庫

$ sudo tee /etc/yum.repos.d/docker.repo <<-'EOF' [dockerrepo] name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/ enabled=1 gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg EOF

安裝Docker包

$ sudo yum install docker-engine

• 開啟docker deamon

$ sudo service docker start

驗證docker是否成功安裝

$ sudo docker run hello-world Unable to find image 'hello-world:latest' locallylatest: Pulling from hello-worlda8219747be10: Pull complete91c95931e552: Already existshello-world:latest: The image you are pulling has been verified. Important: image verification is a tech preview feature and should not be relied on to provide security.Digest: sha256:aa03e5d0d5553b4c3473e89c8619cf79df368babd1.7.1cf5daeb82aab55838dStatus: Downloaded newer image for hello-world:latestHello from Docker.This message shows that your installation appears to be working correctly.To generate this message, Docker took the following steps:1. The Docker client contacted the Docker daemon.2. The Docker daemon pulled the "hello-world" image from the Docker Hub.(Assuming it was not already locally available.)3. The Docker daemon created a new container from that image which runs theexecutable that produces the output you are currently reading.4. The Docker daemon streamed that output to the Docker client, which sent itto your terminal.To try something more ambitious, you can run an Ubuntu container with:$ docker run -it ubuntu bashFor more examples and ideas, visit:http://docs.docker.com/userguide/

開機自啟動

$ sudo chkconfig docker on

卸載

列出你安裝過的包

$ yum list installed | grep docker yum list installed | grep docker docker-engine.x86_64 1.7.1-1.el7 @/docker-engine-1.7.1-1.el7.x86_64.rpm

刪除安裝包

$ sudo yum - y remove docker-engine.x86_64

刪除鏡像/容器等

$ rum -rf /var/lib/docker

詳情請參閱：官網(wǎng)教程

轉(zhuǎn)載于:https://www.cnblogs.com/beautiful-code/p/6245528.html

總結(jié)

以上是生活随笔為你收集整理的CentOS系统下docker的安装与卸载的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。