CentOS7.4安装docker

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所属分类:linux技术
摘要

此处在Centos7进行安装,可以使用以下命令查看CentOS版本在 CentOS 7安装docker要求系统为64位、系统内核版本为 3.10 以上,可以使用以下命令查看


1、安装环境

此处在Centos7进行安装,可以使用以下命令查看CentOS版本

lsb_release -a

CentOS7.4安装docker

在 CentOS 7安装docker要求系统为64位、系统内核版本为 3.10 以上,可以使用以下命令查看

uname -r

CentOS7.4安装docker

2、用yum源安装

2.1 查看是否已安装docker列表

yum list installed | grep docker

CentOS7.4安装docker

2.2 安装docker

yum -y install docker

-y表示不询问安装,直到安装成功,安装完后再次查看安装列表

CentOS7.4安装docker

2.3 启动docker

systemctl start docker

2.4 查看docker服务状态

systemctl status docker

CentOS7.4安装docker

以上说明docker安装成功

3、离线安装模式

3.1 安装包官方地址https://download.docker.com/linux/static/stable/x86_64/

可以先下载到本地,然后通过ftp工具上传到服务器上,或者在服务器上使用命令下载

wget https://download.docker.com/linux/static/stable/x86_64/docker-18.06.3-ce.tgz

3.2 解压

tar -zxvf docker-18.06.3-ce.tgz

3.3 将解压出来的docker文件复制到 /usr/bin/ 目录下

cp docker/* /usr/bin/

3.4 在/etc/systemd/system/目录下新增docker.service文件,内容如下,这样可以将docker注册为service服务

CentOS7.4安装docker
[Unit] Description=Docker Application Container Engine Documentation=https://docs.docker.com After=network-online.target firewalld.service Wants=network-online.target    [Service] Type=notify # the default is not to use systemd for cgroups because the delegate issues still # exists and systemd currently does not support the cgroup feature set required # for containers run by docker ExecStart=/usr/bin/dockerd --selinux-enabled=false --insecure-registry=127.0.0.1 ExecReload=/bin/kill -s HUP $MAINPID # Having non-zero Limit*s causes performance problems due to accounting overhead # in the kernel. We recommend using cgroups to do container-local accounting. LimitNOFILE=infinity LimitNPROC=infinity LimitCORE=infinity # Uncomment TasksMax if your systemd version supports it. # Only systemd 226 and above support this version. #TasksMax=infinity TimeoutStartSec=0 # set delegate yes so that systemd does not reset the cgroups of docker containers Delegate=yes # kill only the docker process, not all processes in the cgroup KillMode=process # restart the docker process if it exits prematurely Restart=on-failure StartLimitBurst=3 StartLimitInterval=60s    [Install] WantedBy=multi-user.target
CentOS7.4安装docker

此处的--insecure-registry=127.0.0.1(此处改成你私服ip)设置是针对有搭建了自己私服Harbor时允许docker进行不安全的访问,否则访问将会被拒绝。

3.5 启动docker

给docker.service文件添加执行权限

chmod +x /etc/systemd/system/docker.service 

重新加载配置文件(每次有修改docker.service文件时都要重新加载下)

systemctl daemon-reload                

启动

systemctl start docker

设置开机启动

systemctl enable docker.service

查看docker服务状态

systemctl status docker

CentOS7.4安装docker

上图表示docker已安装成功

 

本文转载自:https://www.cnblogs.com/kingsonfu/p/11576797.html