我正在尝试在Azure VM（Ubuntu 18.04 LTS）上配置Docker。目标是使用Jenkins将我的应用程序部署到我的Kubernetes集群中（遵循this tutorial）。
但是，当我尝试在此VM中构建docker映像时，在“运行apt-get更新”期间出现403错误。虽然VM本身可以访问这些URL，但是只有在构建docker映像的过程中才会出现403错误。
输出示例：
Err:33 http://archive.ubuntu.com/ubuntu xenial-backports/main amd64 Packages
403 Forbidden [IP: 91.189.88.149 80]
Ign:34 http://archive.ubuntu.com/ubuntu xenial-backports/main all Packages
Ign:35 http://archive.ubuntu.com/ubuntu xenial-backports/restricted amd64 Packages
Ign:36 http://archive.ubuntu.com/ubuntu xenial-backports/restricted all Packages
Ign:37 http://archive.ubuntu.com/ubuntu xenial-backports/universe amd64 Packages
Ign:38 http://archive.ubuntu.com/ubuntu xenial-backports/universe all Packages
Ign:39 http://archive.ubuntu.com/ubuntu xenial-backports/multiverse amd64 Packages
Ign:40 http://archive.ubuntu.com/ubuntu xenial-backports/multiverse all Packages
Reading package lists...
W: The repository 'http://archive.ubuntu.com/ubuntu xenial-updates Release' does not have a Release file.
W: The repository 'http://archive.ubuntu.com/ubuntu xenial-backports Release' does not have a Release file.
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/main/binary-amd64/Packages 403 Forbidden [IP: 91.189.88.161 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/main/binary-amd64/Packages 403 Forbidden [IP: 91.189.88.149 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/binary-amd64/Packages 403 Forbidden [IP: 91.189.88.149 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial-backports/main/binary-amd64/Packages 403 Forbidden [IP: 91.189.88.149 80]
我发现了类似this one之类的类似问题，但没有一个答案有效，也无法确切解释Azure中发生的情况（我想是docker网络无法正确使用防火墙或透明代理）。
是否为docker，azure VM等提供了特定的配置？？
谢谢。