准备
sudo apt-get update
sudo apt-get install -y git
sudo apt-get install -y libtool
sudo apt-get install -y m4
sudo apt-get install -y automake
sudo apt-get install -y pkg-config
sudo apt install -y libfuse-dev
git clone https://github.com/lxc/lxcfs.git
cd lxcfs
./bootstrap.sh
./configure
make
sudo make install
sudo mkdir -p /var/lib/lxcfs
/data下创建一个test.go,假设编译后名为test
package main
import (
"fmt"
"runtime"
)
func main() {
fmt.Println(runtime.NumCPU())
}
试验
开一个终端
sudo lxcfs /var/lib/lxcfs
开一个终端
docker run -it -m 256m --memory-swap 256m -v /var/lib/lxcfs/proc/cpuinfo:/proc/cpuinfo:rw -v /var/lib/lxcfs/proc/diskstats:/proc/diskstats:rw -v /var/lib/lxcfs/proc/meminfo:/proc/meminfo:rw -v /var/lib/lxcfs/proc/stat:/proc/stat:rw -v /var/lib/lxcfs/proc/swaps:/proc/swaps:rw -v /var/lib/lxcfs/proc/uptime:/proc/uptime:rw -v /data:/root --cpuset-cpus 1 ubuntu:18.04 /bin/bash
输入
/root/test
得到
1
