Our Pipeline worked great for months, and it broke just now with the following error:

• apt-get update && apt-get -y install awscli
  Get:1 http://security.debian.org jessie/updates InRelease [63.1 kB]
  Get:2 http://security.debian.org jessie/updates/main amd64 Packages [547 kB]
  Ign http://deb.debian.org jessie InRelease
  Ign http://deb.debian.org jessie-updates InRelease
  Ign http://deb.debian.org jessie Release.gpg
  Ign http://deb.debian.org jessie-updates Release.gpg
  Ign http://deb.debian.org jessie Release
  Ign http://deb.debian.org jessie-updates Release
  Err http://deb.debian.org jessie/main amd64 Packages

Err http://deb.debian.org jessie-updates/main amd64 Packages

Err http://deb.debian.org jessie/main amd64 Packages

Err http://deb.debian.org jessie-updates/main amd64 Packages

Err http://deb.debian.org jessie/main amd64 Packages
404 Not Found [IP: 151.101.32.204 80]
Err http://deb.debian.org jessie-updates/main amd64 Packages
404 Not Found [IP: 151.101.32.204 80]
Fetched 610 kB in 3s (172 kB/s)
W: Failed to fetch http://deb.debian.org/debian/dists/jessie/main/binary-amd64/Packages 404 Not Found [IP: 151.101.32.204 80]
W: Failed to fetch http://deb.debian.org/debian/dists/jessie-updates/main/binary-amd64/Packages 404 Not Found [IP: 151.101.32.204 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.