docker_1">1、linux安装docker
1.1、官网安装文档
https://docs.docker.com/engine/install/binaries/
docker_4">1.2、下载docker安装包
官方下载链接:https://download.docker.com/linux/static/stable/
选择最新版 26.1.0 下载
文件名:docker-26.1.0.tgz
docker_2610_12">2、安装docker 26.1.0
上传docker-26.1.0.tgz到linux服务器
cd /path/to/docker-26.1.0.tgz
tar -xzvf docker-26.1.0.tgz
cp docker/* /usr/bin/
至此安装完成docker
查看docker版本
docker --version
docker_systemd_31">3、配置docker systemd服务
vi /etc/systemd/system/docker.service
插入以下内容
[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
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
为docker.service添加可执行权限
chmod +x /etc/systemd/system/docker.service
重新加载docker.service配置文件,使得systemctl识别docker.service
systemctl daemon-reload
配置docker.service开机自启动
systemctl enable docker.service
启动docker服务
systemctl start docker.service
查看docker服务
systemctl status docker.service
查看docker信息
docker info
得知docker默认的根目录是 /var/lib/docker
查看docker根目录的组织结构
ls -l /var/lib/docker
整个根目录大小是340K