linux离线安装docker与compose

前言

• 系统版本：centos 7、ubuntu 20.04
• docker版本：v19.03.9。官方下载地址
• docker-compose版本：v2.2.3。官方下载地址

官方提供免安装的二进制程序包，解压后就能用。

docker-compose下载后会带有一些版本信息后缀，手动修改成docker-compose，然后挪到/usr/local/bin目录，并授予可执行权限即可。

步骤

1. 官网下载安装包。
2. 解压安装包，将安装包内的二进制程序解压到/usr/local/bin目录。（如果未授予可执行权限和所属用户权限，手动授予。）
3. 建立docker的数据存放目录：

mkdir -p /home/data/docker

1. 创建docker的service文件（/usr/lib/systemd/system/docker.service）：

[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/local/bin/dockerd --data-root /home/data/docker

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

1. 使配置生效

systemctl daemon-reload
systemctl start docker
systemctl enable docker

1. 验证

docker info
docker-compose --version

默认从DockerHub下载docker镜像，在国内下载会比较慢，建议配置国内镜像源加速。相关教程：https://www.runoob.com/docker/docker-mirror-acceleration.html

/etc/docker/daemon.json示例

• 注意修改自己的docker加速地址
• data-root跟services文件不能同时配
• 检查json文件格式是否正确：cat /etc/docker/daemon.json | python3 -m json.tool
• 修改完需要执行systemctl daemon-reload

{
    "exec-opts": [
        "native.cgroupdriver=systemd"
    ],
    "log-driver": "json-file",
    "log-level": "warn",
    "log-opts": {
        "max-size": "100m"
    },
    "storage-driver": "overlay2",
    "storage-opts": [
        "overlay2.override_kernel_check=true"
    ],
    "registry-mirrors": [
        "https://qwerty.mirror.aliyuncs.com"
    ],
    "ip-forward": true,
    "ip-masq": false,
    "iptables": false,
    "ipv6": false,
    "live-restore": true,
    "selinux-enabled": false,
    "bip": "172.17.200.1/24",
    "data-root": "/home/data/docker"
}