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>
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