ubuntu20.04离线安装docker和docker-compose

下载docker离线包

https://download.docker.com/linux/static/stable/x86_64/

解压

tar -zxvf docker-27.1.0.tgz

将docker二进制文件复制到/usr/bin/

cp docker/* /usr/bin/

添加服务文件

vim /usr/local/lib/systemd/system/docker.service

[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target docker.socket firewalld.service containerd.service
Wants=network-online.target
Requires=docker.socket containerd.service

[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 -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always

# Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229.
# Both the old, and new location are accepted by systemd 229 and up, so using the old location
# to make them work for either version of systemd.
StartLimitBurst=3

# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230.
# Both the old, and new name are accepted by systemd 230 and up, so using the old name to make
# this option work for either version of systemd.
StartLimitInterval=60s

# 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

# Comment TasksMax if your systemd version does not support it.
# Only systemd 226 and above support this option.
TasksMax=infinity

# 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
OOMScoreAdjust=-500

[Install]
WantedBy=multi-user.target

sudo vim vim /usr/local/lib/systemd/system/docker.socket

[Unit]
Description=Docker Socket for the API

[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target

vim /usr/local/lib/systemd/system/containerd.service

[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/bin/containerd

Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=infinity
# Comment TasksMax if your systemd version does not supports it.
# Only systemd 226 and above support this version.
TasksMax=infinity
OOMScoreAdjust=-999

[Install]
WantedBy=multi-user.target

更改镜像存储目录：

sudo vim /etc/docker/daemon.json

{
  "data-root": "/mnt/docker"
}

启动验证

groupadd docker	#添加docker组，否则docker.socket启动会报错
systemctl start containerd.service && systemctl enable containerd.service
systemctl start docker.socket && systemctl enable docker.socket
systemctl start docker.service && systemctl enable docker.service
docker info		#输出结果正常代表安装成功

下载docker-compose离线安装包

https://github.com/docker/compose/releases/tag/v2.29.3

安装

mv docker-compose-linux-x86_64 /usr/bin/
mv /usr/bin/docker-compose-linux-x86_64 /usr/bin/docker-compose
chmod +x /usr/bin/docker-compose