centos7-linux安装docker(离线方式) 情况描述
HCI上的虚拟机部署在客户的内网,需要采用离线的方式部署docker。
解决方法
1.准备docker的安装文件,并上传到linux虚拟机内
2. 将docker-18.09.5.tgz文件上传到centos7-linux系统上,用ftp工具上传即可
3. 解压docker.tgz文件 tar -zxvf docker-18.09.5.tgz
4.将解压出来的docker文件复制到 /usr/bin/ 目录下
cp docker/* /usr/bin/
5. 进入/etc/systemd/system/目录,并创建docker.service文件
cd /etc/systemd/system/
touch docker.service
6. 打开docker.service文件,将以下内容复制
vi docker.service
.
注意: --insecure-registry=192.168.200.128 此处改为你自己服务器ip
[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=192.200.90.12
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
7.给docker.service文件添加执行权限
chmod 777 /etc/systemd/system/docker.service
8.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
9. 设置开机启动docker
systemctl enable docker.service
10. 启动docker
systemctl start docker
11.查看docker状态
systemctl status docker
出现下面这个界面就代表docker安装成功。 |