ubuntu系统下安装docker

灰太狼 2023-05-31 15:18 36阅读 0赞

### 一、安装docker ###

*  **检查安装环境是否满足docker安装要求**
 *  检查kernel内核是否在3.10以上：

uname -a
    // Linux dlserver 4.15.0-33-generic #36~16.04.1-Ubuntu SMP Wed Aug 15 17:21:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

*  检查Device Mapper：

sudo grep device-mapper /proc/devices
    // 253 device-mapper

*  **确保apt能使用https方式并且CA证书已安装**

sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common

*  **卸载可能存在的旧版本**

sudo apt-get remove docker docker-engine docker-ce docker.io

*  **添加Docker官方的gpg密钥**

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

*  **设置stable存储库**

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

*  **更新apt**

sudo apt-get update

*  **查看docker版本，安装指定版本或最新版**

apt-cache madison docker-ce

*  **安装指定版本**
 *  **docker下载网址：**[https://download.docker.com/linux/centos/7/x86\_64/stable/Packages/][https_download.docker.com_linux_centos_7_x86_64_stable_Packages]

sudo apt-get install -y docker-ce=版本号

*  **安装最新版**

sudo apt-get install -y docker-ce

### 二、修改docker的默认存储路径 ###

*  **停止docker服务：**

sudo service docker stop

*  **编辑文件docker-overlay.conf**

*  进入目录

cd /etc/systemd/system/docker.service.d
    如果没有docker.service.d 则创建这个路径:
    cd /etc/systemd/system/
    mkdir docker.service.d

*  编辑文件

sudo vim docker-overlay.conf
    如果没有则创建这个文件 touch docker-overlay.conf

*   
 *  在文件中添加一下内容，并保存退出  
    点击`insert`按钮,将内容设置好之后,点击`esc`按钮,输入`:wq`进行保存

[Service]
    ExecStart=
    ExecStart=/usr/bin/dockerd --graph="新的存储路径" --storage-driver=overlay

*  **重启docker**

systemctl daemon-reload
    sudo service docker start

*  **查看docker信息，确认是否修改成功**

sudo docker info

docker下载地址：[https://download.docker.com/linux/centos/7/x86\_64/stable/Packages/docker-ce-selinux-17.03.3.ce-1.el7.noarch.rpm][https_download.docker.com_linux_centos_7_x86_64_stable_Packages_docker-ce-selinux-17.03.3.ce-1.el7.noarch.rpm]

[https://download.docker.com/linux/centos/7/x86\_64/stable/Packages/docker-ce-19.03.9-3.el7.x86\_64.rpm][https_download.docker.com_linux_centos_7_x86_64_stable_Packages_docker-ce-19.03.9-3.el7.x86_64.rpm]

[https_download.docker.com_linux_centos_7_x86_64_stable_Packages]: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/
[https_download.docker.com_linux_centos_7_x86_64_stable_Packages_docker-ce-selinux-17.03.3.ce-1.el7.noarch.rpm]: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-selinux-17.03.3.ce-1.el7.noarch.rpm
[https_download.docker.com_linux_centos_7_x86_64_stable_Packages_docker-ce-19.03.9-3.el7.x86_64.rpm]: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-19.03.9-3.el7.x86_64.rpm