k8s+docker(学习.....)

docker安装（基于linux）

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=Docker CE Stable - $basearch
baseurl=https://download.docker.com/linux/centos/7/$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=Docker CE Stable - 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=Docker CE Stable - 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=Docker CE Edge - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/edge
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-edge-debuginfo]
name=Docker CE Edge - 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=Docker CE Edge - 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=Docker CE Test - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/test
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-ce-test-debuginfo]
name=Docker CE Test - 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=Docker CE Test - Sources
baseurl=https://download.docker.com/linux/centos/7/source/test
enabled=0
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg

 如多台主机部署docker同步docker源：

scp   /etc/yum.repos.d/docker.repo   IP:/etc/yum.repos.d/docker.repo

三、多台主机一次安装docker:

yum install docker-ce Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check ---> Package docker-ce.x86_64 0:17.03.1.ce-1.el7.centos will be installed --> Processing Dependency: docker-ce-selinux >= 17.03.1.ce-1.el7.centos for package: docker-ce-17.03.1.ce-1.el7.centos.x86_64 --> Running transaction check ---> Package docker-ce-selinux.noarch 0:17.03.1.ce-1.el7.centos will be installed --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================================== Package Arch Version Repository Size ===================================================================================================================================== Installing: docker-ce x86_64 17.03.1.ce-1.el7.centos docker-ce-stable 19 M Installing for dependencies: docker-ce-selinux noarch 17.03.1.ce-1.el7.centos docker-ce-stable 28 k Transaction Summary ===================================================================================================================================== Install 1 Package (+1 Dependent package) Total download size: 19 M Installed size: 19 M Is this ok [y/d/N]: y