k8s+docker(学习.....)

xinxuaw231

　　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