I would like to set a specific package version for some packages when using disk-image-builder to create images for use with OpenStack. In this case a Ubuntu base image is used and apt for installation. The "package-installs.yaml" file configures which packages to install, but there does not seem to be any way to specify an exact version to use during installation. There is no example in the documentation (searching the net also fails to provide an answer).
Example content of package-installs.yaml:
Maybe there is some other way to configure the package version to use, that I have overlooked?