ToyRunC

Features

Implement the basic runC functionality.

Build

First, install x86_64-linux-musl-gcc

arch -x86_64 brew install FiloSottile/musl-cross/musl-cross

Second, build it.

CC=x86_64-linux-musl-gcc CGO_ENABLED=1 GOOS=linux GOARCH=amd64  go build -ldflags "-linkmode external -extldflags -static" -o runC /cmd/main.go

Usage

Ensure that the operating system runs linux.

run a sample bash.

./runC run -it ls -l

./runC run -it bin/sh

run with resource limit(cgroup)

Optional: you can choose stress in the usage below to start a resource hog program or provide it yourself

💡 if you choose stress then you can use command yum install stress install it.

# Limit memory
./runC run -it -m 100m stress --vm-bytes 200m --vm--keep -m 1
# Limit cpu ratio
./runC run -it -cpushare 512 stress --vm-bytes 200m --vm--keep -m 1
# Limit cpu 
./runC run -it -cpu 1 stress --vm-bytes 200m --vm-keep -m 1

USAGE:
   runC [global options] command [command options] [arguments...]

COMMANDS:
   exec     exec a command into container
   init     Init container process run user's process in container. Do not call it outside
   ps       list all containers
   logs     print logs of a container
   rm       remove unused container
   run      create a container: my-docker run -ti [command]
   stop     stop a container
   network  container network commands
   commit   commit a container to image
   image    image commands
   help, h  Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --help, -h  show help

Licensed under of either of

MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

eliasyaoyc/toy-runc

ToyRunC

Features

Build

Usage