Remove the image and the intermediate images. Otherwise, especially
for the initial runs, the disk fills up quickly.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
No actual source change, just make it easier to enable
kernel headers should they be needed.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Doing a "docker pull" to check if an image exist on hub
takes a long time for the number of images, in particular
in the linuxkit/kernel-mainline repo.
Instead, get a list of tags on Hub and check that way. This
does not check if the image was signed, but should be good
enough.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This only covers the 4.x Ubuntu kernels and for now does
not include the headers to build modules against.
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>