如何配置docker官方源并用yum安装docker
本文介绍了如何配置docker官方源并用yum安装docker，分享给大家，希望对各位有帮助
一、docker的官方安装文档：
https://docs.docker.com/engine/installation/linux/centos/
由docker给的文档可以看出它也只是去配置了一个docker的yum源、然后就通过这个源来安装docker了；在这个文档下我们采用手工配置
的方式
二、配置一个docker用的源：
1、为docker增加一个新的yum配置文件；touch/etc/yum.repos.d/docker.repo
touch/etc/yum.repos.d/docker.repo
2、docker.repo的内容如下
[docker-ce-stable] name=DockerCEStable-$basearch baseurl=https://download.docker.com/linux/centos/7/$basearch/stable enabled=1 gpgcheck=0#我把这里设置成了0、说明我信任了这个源，不对它的rpm进行检察 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-stable-debuginfo] name=DockerCEStable-Debuginfo$basearch baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/stable enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-stable-source] name=DockerCEStable-Sources baseurl=https://download.docker.com/linux/centos/7/source/stable enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-edge] name=DockerCEEdge-$basearch baseurl=https://download.docker.com/linux/centos/7/$basearch/edge enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-edge-debuginfo] name=DockerCEEdge-Debuginfo$basearch baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/edge enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-edge-source] name=DockerCEEdge-Sources baseurl=https://download.docker.com/linux/centos/7/source/edge enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-test] name=DockerCETest-$basearch baseurl=https://download.docker.com/linux/centos/7/$basearch/test enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-test-debuginfo] name=DockerCETest-Debuginfo$basearch baseurl=https://download.docker.com/linux/centos/7/debug-$basearch/test enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg [docker-ce-test-source] name=DockerCETest-Sources baseurl=https://download.docker.com/linux/centos/7/source/test enabled=0 gpgcheck=1 gpgkey=https://download.docker.com/linux/centos/gpg
三、安装docker:
sudoyuminstalldocker-ce Loadedplugins:fastestmirror,langpacks Loadingmirrorspeedsfromcachedhostfile ResolvingDependencies -->Runningtransactioncheck --->Packagedocker-ce.x86_640:17.03.1.ce-1.el7.centoswillbeinstalled -->ProcessingDependency:docker-ce-selinux>=17.03.1.ce-1.el7.centosforpackage:docker-ce-17.03.1.ce-1.el7.centos.x86_64 -->Runningtransactioncheck --->Packagedocker-ce-selinux.noarch0:17.03.1.ce-1.el7.centoswillbeinstalled -->FinishedDependencyResolution DependenciesResolved ===================================================================================================================================== PackageArchVersionRepositorySize ===================================================================================================================================== Installing: docker-cex86_6417.03.1.ce-1.el7.centosdocker-ce-stable19M Installingfordependencies: docker-ce-selinuxnoarch17.03.1.ce-1.el7.centosdocker-ce-stable28k TransactionSummary ===================================================================================================================================== Install1Package(+1Dependentpackage) Totaldownloadsize:19M Installedsize:19M Isthisok[y/d/N]:y
四、直接下载rpm包的方式来安装：
1、我在安装docker的时候发现下载的速度只有3kB/s然而文件大小有19M；就在我感觉安装无望的时候、我机智的想到了自己直接把rpm下载下来
看了下docker.repo、发现centos7的源地址是https://download.docker.com/linux/centos/7/$basearch/stable所以我只要去
https://download.docker.com/linux/centos/7/x86_64/stable/Packages/
用迅雷(我是会员有加速)把rpm包下载下来就行了
下载如下文件：
docker-ce-17.03.0.ce-1.el7.centos.x86_64.rpm
docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch.rpm
五、安装docker:
ll total19096 -rwxrwxrwx1jianglexingjianglexing19521288May3020:05docker-ce-17.03.0.ce-1.el7.centos.x86_64.rpm -rw-r--r--1jianglexingjianglexing29108May3020:15docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch.rpm [root@workstudiodocker]#yumlocalinstall* Loadedplugins:fastestmirror,langpacks Examiningdocker-ce-17.03.0.ce-1.el7.centos.x86_64.rpm:docker-ce-17.03.0.ce-1.el7.centos.x86_64 Markingdocker-ce-17.03.0.ce-1.el7.centos.x86_64.rpmtobeinstalled Examiningdocker-ce-selinux-17.03.0.ce-1.el7.centos.noarch.rpm:docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch Markingdocker-ce-selinux-17.03.0.ce-1.el7.centos.noarch.rpmtobeinstalled ResolvingDependencies -->Runningtransactioncheck --->Packagedocker-ce.x86_640:17.03.0.ce-1.el7.centoswillbeinstalled --->Packagedocker-ce-selinux.noarch0:17.03.0.ce-1.el7.centoswillbeinstalled -->FinishedDependencyResolution DependenciesResolved ===================================================================================================================================== PackageArchVersionRepositorySize ===================================================================================================================================== Installing: docker-cex86_6417.03.0.ce-1.el7.centos/docker-ce-17.03.0.ce-1.el7.centos.x86_6465M docker-ce-selinuxnoarch17.03.0.ce-1.el7.centos/docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch43k TransactionSummary ===================================================================================================================================== Install2Packages Totalsize:65M Installedsize:65M Isthisok[y/d/N]:y Downloadingpackages: Runningtransactioncheck Runningtransactiontest Transactiontestsucceeded Runningtransaction Installing:docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch1/2 setsebool:SELinuxisdisabled. libsemanage.semanage_direct_install_info:Overridingdockermoduleatlowerpriority100withmoduleatpriority400. Installing:docker-ce-17.03.0.ce-1.el7.centos.x86_642/2 Verifying:docker-ce-17.03.0.ce-1.el7.centos.x86_641/2 Verifying:docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch2/2 Installed: docker-ce.x86_640:17.03.0.ce-1.el7.centosdocker-ce-selinux.noarch0:17.03.0.ce-1.el7.centos Complete!
六、启动docker:
[root@workstudiodocker]#systemctlstartdocker [root@workstudiodocker]#ps-ef|grepdocker root44581120:22?00:00:00/usr/bin/dockerd root44654458020:22?00:00:00docker-containerd-lunix:///var/run/docker/libcontainerd/docker-containerd.sock--metrics-interval=0--start-timeout2m--state-dir/var/run/docker/libcontainerd/containerd--shimdocker-containerd-shim--runtimedocker-runc root45894333020:22pts/100:00:00grep--color=autodocker
七、测试docker是否能成功运行：
[root@workstudiodocker]#dockerrunhello-world Unabletofindimage'hello-world:latest'locally latest:Pullingfromlibrary/hello-world 78445dd45222:Pullcomplete Digest:sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7 Status:Downloadednewerimageforhello-world:latest HellofromDocker! Thismessageshowsthatyourinstallationappearstobeworkingcorrectly. Togeneratethismessage,Dockertookthefollowingsteps: 1.TheDockerclientcontactedtheDockerdaemon. 2.TheDockerdaemonpulledthe"hello-world"imagefromtheDockerHub. 3.TheDockerdaemoncreatedanewcontainerfromthatimagewhichrunsthe executablethatproducestheoutputyouarecurrentlyreading. 4.TheDockerdaemonstreamedthatoutputtotheDockerclient,whichsentit toyourterminal. Totrysomethingmoreambitious,youcanrunanUbuntucontainerwith: $dockerrun-itubuntubash Shareimages,automateworkflows,andmorewithafreeDockerID: https://cloud.docker.com/ Formoreexamplesandideas,visit: https://docs.docker.com/engine/userguide/
如下是第一次运行hello-world这个docker-image由于它还不存在于本地、所以要下载它、这可能要用一点时间！
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。