在docker 容器中执行apt-get update有时候会报错，固然形成错误的缘由有不少状况，具体状况具体分析，docker
APT Hash sum mismatch错误的常看法决方法总结这篇博客写的不错，在此感谢博主提供的思路。ubuntu
如下是本人解决docker容器中执行apt-get update报错的解决办法（踩了好多坑，血淋淋的阿，终于好用了。）：缓存
root@33c5b2ae7edc:/# apt-get update
Err:1 http://archive.ubuntu.com/ubuntu xenial InRelease
Temporary failure resolving 'archive.ubuntu.com'
Err:2 http://security.ubuntu.com/ubuntu xenial-security InRelease
Temporary failure resolving 'security.ubuntu.com'
Err:3 http://archive.ubuntu.com/ubuntu xenial-updates InRelease
Temporary failure resolving 'archive.ubuntu.com'
Err:4 http://archive.ubuntu.com/ubuntu xenial-backports InRelease
Temporary failure resolving 'archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease Temporary failure resolving 'security.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
<1> 首先配置docker容器的DNS服务器
cat /etc/resolv.conf 该命令查看容器和宿主机的DNS设置，容器和宿主机的DNS设置应该一致。fetch
docker DNS的设置能够经过启动容器时添加参数 --dns 8.8.8.8 来设置（本次有效）ui
或者经过 /etc/default/docker的DNS参数来进行永久设置，而后重启DOCKER生效，代理
export http_proxy="http://10.1.9.100:808/"
DOCKER_OPTS="--dns 210.83.210.155 --dns 127.0.1.1"rest
sudo service docker restartdns
<2> 查看容器 /etc/apt/目录中是否有apt.conf文件，该文件配置了代理：ip
Acquire::http::proxy "http://10.1.9.100:8080/";
Acquire::ftp::proxy "ftp://10.1.9.100:8080/";
Acquire::https::proxy "https://10.1.9.100:8080/";
若是没有该文件，能够将宿主机中的apt.conf文件拷贝到容器对应目录中。
<3>对代理服务器进行设置：
还有些开发者遇到的问题，是由于公司的Proxy的设置。
若是读者朋友使用了Proxy，那么能够尝试，在容器的 /etc/apt/apt.conf.d/ 目录下建立一个名称为99fixbadproxy 的文件
$ sudo gedit /etc/apt/apt.conf.d/99fixbadproxy
把如下文本复制到上述文件中，而后保存退出：
Acquire::http::Pipeline-Depth 0;
Acquire::http::No-Cache true;
Acquire::BrokenProxy true;
<4> 清cache缓存：
$ sudo apt-get clean $ sudo apt-get update --fix-missing <5> 能够更改APT源，网上有挺多的国内源，能够搜索更改办法。