ubuntu-minimal¶
The ubuntu-minimal
element uses debootstrap for generating a
minimal image. In contrast the ubuntu
element uses the cloud-image
as the initial base.
Note
You will need to install a working debootstrap for diskimage-builder. The version you install may not support all Debian and Ubuntu releases that you want to bootstrap. Consider using the zuul/nodepool-builder docker image instead as maximum compatibility is attempted there.
By default this element creates the latest LTS release. The exact setting can
be found in the ubuntu-common
element’s environment.d
directory in the variable DIB_RELEASE
. If a
different release of Ubuntu should be created, the variable DIB_RELEASE
can
be set appropriately.
Note that this element installs systemd-sysv
as the init system for
18.04+.
Environment Variables¶
- DIB_UBUNTU_KERNEL:
- Required:
No
- Default:
linux-image-generic
- Description:
Specifies the kernel meta package to install in the image.
- Example:
DIB_UBUNTU_KERNEL=linux-image-kvm
- Options:
linux-image-generic
,linux-image-kvm
,linux-image-virtual
- Notes:
The element must know about the package, otherwise it will select the default.
- DIB_UBUNTU_MIRROR_DISTS:
- Required:
No
- Default:
updates,security,backports
- Description:
Allow to manage ‘dists’ repos
- Example:
DIB_UBUNTU_MIRROR_DISTS=updates,security
- Notes:
For some deployment, is may be required to disable backport|update|etc packages integration.