docker安装

1. 配置系统yum源，更新系统

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[root@localhost ~]# cat <<END>> /etc/yum.repos.d/163.repo [163] name=163 baseurl=http://mirrors.163.com/centos/7/os/x86_64/ enable=1 gpgcache=1 gpgkey=http://mirrors.163.com/centos/7/os/x86_64/RPM-GPG-KEY-CentOS-7 END   [root@localhost ~]# yum clean all [root@localhost ~]# yum makecache [root@localhost ~]# yum update

　　注意：使用自带系统镜像做yum源安装docker时可能会出现selinux的依赖问题

 

2.安装docker

检查是否有旧版本docker

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[root@localhost ~]# yum remove docker \                   docker-client \                   docker-client-latest \                   docker-common \                   docker-latest \                   docker-latest-logrotate \                   docker-logrotate \                   docker-engine

 安装docker

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[root@localhost ~]# yum install -y yum-utils   # 安装基础软件 [root@localhost ~]# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo   # 安装docker源 [root@localhost ~]# yum install docker-ce docker-ce-cli containerd.io    # 安装最新稳定版docker [root@localhost ~]# systemctl start docker [root@localhost ~]# systemctl enable docker [root@localhost ~]# docker info    # 查看docker版本信息 [root@localhost ~]# docker run hello-world    # 运行一个打印hello world的测试容器   [root@localhost ~]# yum list docker-ce --showduplicates | sort -r    #查看可安装的历史版本 [root@localhost ~]# yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io    # 安装历史版本格式 [root@localhost ~]# yum install docker-ce-18.09.5-3.el7 docker-ce-cli-18.09.5-3.el7 containerd.io   # 安装18.09.5版本的docker

　　

 配置docker的阿里云加速镜像

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[root@localhost ~]# cat <<END>> /etc/docker/daemon.json {   "registry-mirrors": ["https://wl335tow.mirror.aliyuncs.com"] } END [root@localhost ~]# systemctl daemon-reload [root@localhost ~]# systemctl restart docker