docker & docker-compose 离线安装

向右看齐 2023-06-07 03:25 39阅读 0赞

Docker 离线安装的方法，其实官方已经给出了很明确的步骤。  
[官网链接][Link 1]  
[安装包下载地址][Link 2]  
本文当前docker最新版：docker-19.03.3.tgz  
docker-compose：1.24.1

其主要内容如下：

#### Install static binaries ####

1.  Download the static binary archive. Go to https://download.docker.com/linux/static/stable/ (or change stable to nightly or test), choose your hardware platform, and download the .tgz file relating to the version of Docker Engine - Community you want to install.
2.  Extract the archive using the tar utility. The dockerd and docker binaries are extracted.

$ tar xzvf /path/to/<FILE>.tar.gz

1.  Optional: Move the binaries to a directory on your executable path, such as /usr/bin/. If you skip this step, you must provide the path to the executable when you invoke docker or dockerd commands.

$ sudo cp docker/* /usr/bin/

1.  Start the Docker daemon:

$ sudo dockerd &

> If you need to start the daemon with additional options, modify the above command accordingly or create and edit the file /etc/docker/daemon.json to add the custom configuration options.

1.  Verify that Docker is installed correctly by running the hello-world image.

$ sudo docker run hello-world

> This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.

#### 配置docker为系统服务的具体操作如下三步 ####

`这里要注意了：按上面的方法确实可以正常安装和使用docker，按命令 sudo dockerd & 启动可以满足基本使用，但是docker 从1.11开始已经不是简单的通过Docker daemon来启动，而是集成了containerd、runC等多个组件。`

按照如下步骤，我们先配置 containerd，再配置 docker.socket，然后配置 docker.service 服务：

**一、配置 containerd**

mkdir /etc/containerd
    containerd config default > /etc/containerd/config.toml
    touch /usr/lib/systemd/system/containerd.service
    vi /usr/lib/systemd/system/containerd.service

containerd.service 内容如下：

[Unit]
    Description=containerd container runtime
    Documentation=https://containerd.io
    After=network.target
    
    [Service]
    ExecStartPre=/sbin/modprobe overlay
    ExecStart=/usr/bin/containerd  # 这是你 containerd  文件的放置路径
    Delegate=yes
    KillMode=process
    LimitNOFILE=1048576
    # 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
    
    [Install]
    WantedBy=multi-user.target

执行下面的命令启动 containerd 服务并查看服务的状态：

$ sudo systemctl daemon-reload
    $ sudo systemctl enable containerd.service
    $ sudo systemctl start containerd.service
    $ sudo systemctl status containerd.service

**二、配置 docker.socket**

groupadd docker
    touch /usr/lib/systemd/system/docker.socket
    vi /usr/lib/systemd/system/docker.socket

docker.socket 文件内容如下：

[Unit]
    Description=Docker Socket for the API
    PartOf=docker.service
    
    [Socket]
    ListenStream=/var/run/docker.sock
    SocketMode=0660
    SocketUser=root
    # 如果出现错误：chown socket at step GROUP: No such process, 可以修改下面的 SocketGroup=root 或创建 docker 用户组（命令 groupadd docker）
    SocketGroup=docker
    
    [Install]
    WantedBy=sockets.target

执行下面的命令启动 containerd 服务并查看服务的状态：

$ sudo systemctl daemon-reload
    $ sudo systemctl enable containerd.service
    $ sudo systemctl start containerd.service
    $ sudo systemctl status containerd.service

服务的 unmask 解禁操作（禁用是 mask，被禁用的服务手工启动服务和重启机器是都拉不起服务的）

systemctl unmask docker.service
    systemctl unmask docker.socket

**三、配置 docker.service 服务**

touch /usr/lib/systemd/system/docker.service
    vi /usr/lib/systemd/system/docker.service

docker.service 文件内容如下：

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

然后执行下面命令载入服务：

chmod +x /usr/lib/systemd/system/docker.service
    systemctl daemon-reload
    systemctl enable docker
    systemctl start docker

#### 安装 docker-compose ####

下载（docker-compose-Linux-x86\_64）：[docker-compose 官网下载地址][docker-compose]

然后操作拷贝和可执行权限并查看版本

sudo mv docker-compose-Linux-x86_64 /usr/local/bin/docker-compose 
    sudo chmod +x /usr/local/bin/docker-compose
    docker-compose -v

--------------------

（THE END）

[Link 1]: https://docs.docker.com/engine/install/binaries/
[Link 2]: https://download.docker.com/linux/static/stable/x86_64/
[docker-compose]: https://github.com/docker/compose/releases