按照各大網(wǎng)站以及個人習(xí)慣我會使用下面這種方法添加Docker源：

root@ubuntu:~# sudo add-apt-repository "deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu $(lsb_release -cs) stable"

然而使用上面這條命令給我?guī)砹藷o盡的煩惱，甚至我都懷疑我是不是一個合格的linux工程師了，使用了這條命令提示以下錯誤:

Ign:1 https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu eoan InReleaseErr:2 https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu eoan Release404 Not Found [IP: 218.104.71.170 443]Hit:3 http://cn.archive.ubuntu.com/ubuntu eoan InReleaseHit:4 http://cn.archive.ubuntu.com/ubuntu eoan-updates InReleaseHit:5 http://cn.archive.ubuntu.com/ubuntu eoan-backports InReleaseHit:6 http://cn.archive.ubuntu.com/ubuntu eoan-security InReleaseReading package lists... Done E: The repository 'https://mirrors.ustc.edu.cn/docker-ce/linux/ubuntu eoan Release' does not have a Release file.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.

下面是apt源文件中的內(nèi)容：

deb [arch=amd64] https://download.docker.com/linux/ubuntu eoan stable# deb-src [arch=amd64] https://download.docker.com/linux/ubuntu eoan stabledeb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable 

發(fā)現(xiàn)是沒有任何錯誤的，但是你會發(fā)現(xiàn)在使用apt更新時會出現(xiàn)各種各樣報錯，最終還是沒有你想要的docker-ce安裝包，還是無法安裝：

root@uduntu:~# apt-get updateGet:1 http://cn.archive.ubuntu.com/ubuntu eoan InRelease [255 kB]Get:2 http://cn.archive.ubuntu.com/ubuntu eoan-updates InRelease [88.4 kB]Hit:3 http://cn.archive.ubuntu.com/ubuntu eoan-backports InReleaseGet:4 http://cn.archive.ubuntu.com/ubuntu eoan-security InRelease [92.9 kB]Ign:5 https://download.docker.com/linux/ubuntu eoan InRelease                            Err:6 https://download.docker.com/linux/ubuntu eoan Release                             404 Not Found [IP: 13.225.103.32 443]Reading package lists... Done                                    E: The repository 'https://download.docker.com/linux/ubuntu eoan Release' does not have a Release file.N: Updating from such a repository can't be done securely, and is therefore disabled by default.N: See apt-secure(8) manpage for repository creation and user configuration details.root@uduntu:~# apt search docker-ceroot@uduntu:~#

遇到這種問題我也覺得很頭疼，在網(wǎng)上找了很多解決方法都是不行，有人都說是網(wǎng)絡(luò)問題無法使用外網(wǎng)的源碼庫，我看到這個文章我都懵了，我還試過安裝網(wǎng)易、阿里以及科大的源都不能更好的解決問題，其實這個很簡單看一下阿里、科大和網(wǎng)易的他們的源碼庫是怎么往配置文件里面寫的，然后比葫蘆畫瓢畫一個不就完了

解決方法：

在sources.list添加下面這一條就可以：

deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable

更新apt源：

root@uduntu:~# apt-get updateGet:1 http://cn.archive.ubuntu.com/ubuntu eoan InRelease [255 kB]Get:2 http://cn.archive.ubuntu.com/ubuntu eoan-updates InRelease [88.4 kB]Hit:3 http://cn.archive.ubuntu.com/ubuntu eoan-backports InReleaseGet:4 http://cn.archive.ubuntu.com/ubuntu eoan-security InRelease [92.9 kB]Get:5 https://download.docker.com/linux/ubuntu bionic InRelease [64.4 kB] Get:6 https://download.docker.com/linux/ubuntu bionic/stable amd64 Packages [9,594 B] Fetched 511 kB in 11s (48.3 kB/s) Reading package lists... Doneroot@uduntu:~#