Files
kata-containers/kernel
Julio Montes 3b18544a99 kernel/configs: enable swap extension (CONFIG_MEMCG_SWAP)
libcontainer limits the memory+swap usage by writing the limit at
/sys/fs/cgroup/memory/docker/$CONTID/memory.memsw.limit_in_bytes, this path
doesn't exist if CONFIG_MEMCG_SWAP and CONFIG_MEMCG_SWAP_ENABLED are not
enabled.

fixes #103

Signed-off-by: Julio Montes <julio.montes@intel.com>
2018-08-01 11:42:53 -05:00
..
2018-04-25 12:11:39 -05:00
2018-07-23 17:01:58 -05:00

Build Kata Containers Kernel

This document explains the steps to build a compatible kernel with Kata Containers. To do this use build-kernel.sh, this script automates the process to build a kernel for Kata Containers.

Setup kernel source code

./build-kernel.sh setup

The script ./build-kernel.sh tries to apply the patches from ${GOPATH}/src/github.com/kata-containers/packaging/kernel/patches/ when it sets up a kernel. If you want to add a source modification, add a patch on this directory.

The script also adds a kernel config file from ${GOPATH}/src/github.com/kata-containers/packaging/kernel/configs/ to .config in the kernel source code. You can modify it as needed.

Build the kernel

After the kernel source code is ready it is possible to build the kernel.

./build-kernel.sh build

Install the Kernel in the default path for Kata

Kata Containers uses some default path to search a kernel to boot. To install on this path, the following command will install it to the default Kata containers path.

./build-kernel.sh install