mirror of https://github.com/aljazceru/kata-containers.git synced 2026-02-05 06:34:21 +01:00

Files

Jia He 005c62a871 image_builder: Reduce the boundary mb for reducing image size on arm64

Qemu merely limits the memory-backend-file size to be aligned to page_size
instead of section size(arm64 1GB). Please see file_ram_alloc() in qemu
exec.c. If we use 1024MB, the generated image size will be 3-4 times bigger
than the original one.

After relaxing it, the image size will be changed from 1G to 300M+ on arm64
with Fedora 29 rootfs's default configuration.

I do see there are some different limitation for ram_block on other arches
(e.g. s390x). So gracefully keep other arches unchanged here.

Fixes #404
Signed-off-by: Jia He <justin.he@arm.com>

2020-02-11 16:28:38 +08:00

Dockerfile

osbuilder: Add USE_PODMAN as an alternate for USE_DOCKER

2019-10-02 21:58:02 +05:30

image_builder.sh

image_builder: Reduce the boundary mb for reducing image size on arm64

2020-02-11 16:28:38 +08:00

nsdax.gpl.c

image-builder: fill out device namespace information into kata image

2019-03-13 13:05:06 -06:00

README.md

docs: Fix link in README

2018-10-24 13:52:00 -04:00

Kata Containers image generation

A Kata Containers disk image is generated using the image_builder.sh script. This uses a rootfs directory created by the rootfs-builder/rootfs.sh script.

Creating a guest OS image

To create a guest OS image run:

$ sudo ./image_builder.sh path/to/rootfs

Where path/to/rootfs is the directory populated by rootfs.sh.

Note

: If you are building an image from an Alpine rootfs, see the important note here.

Further information

For more information about usage (including how to adjust the size of the image), run:

$ ./image_builder.sh -h