How are the Official Ubuntu Vagrant boxes built and published to Atlas?

Solution 1:

You would be correct that the build process for Ubuntu images is all open!

For 16.04 and newer

Look at the livecd-rootfs package for how the images are built:

• https://code.launchpad.net/~ubuntu-core-dev/livecd-rootfs/trunk
• http://bazaar.launchpad.net/~ubuntu-core-dev/livecd-rootfs/trunk/view/head:/live-build/ubuntu-cpc/hooks/042-vagrant.binary

For older releases of Ubuntu

• https://code.launchpad.net/~ubuntu-on-ec2
• https://launchpad.net/vmbuilder

Specifically:

• https://code.launchpad.net/~ubuntu-on-ec2/vmbuilder/jenkins_kvm

And this is probably what you're looking for:

• http://bazaar.launchpad.net/~ubuntu-on-ec2/vmbuilder/jenkins_kvm/view/head:/jenkins/CloudImages_Vagrant.sh