Docker-compose限制容器CPU等

在docker-compose文件中使用deploy->resources->limits来限制容器使用的硬件资源。

yaml

version: '3'
services:
  mysql:
    image: mysql:8.0.27
    container_name: mysql-test
    restart: always
    volumes:
      - mysqlData:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      MYSQL_DATABASE: test
      TZ: Asia/Shanghai
    ports:
        - "3306:3306"
    deploy:
      resources:
        limits:
          cpus: '0.50' # 容器最高使用50%的CPU
          memory: 500M # 容器最高使用500M内存
    
volumes:
  mysqlData:

启动的时候要加上--compatibility参数：docker-compose --compatibility up -d

启动后，使用docker inspect mysql-test | grep 'Cpu\|Memory'查看容器的CPU和内存：

bash

% docker inspect mysql-test | grep 'Cpu\|Memory' 
            "CpuShares": 0,
            "Memory": 524288000, # 524288000 Byte/1024/1024 = 500 MB
            "NanoCpus": 500000000, # 是满CPU的50%
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "KernelMemory": 0,
            "KernelMemoryTCP": 0,
            "MemoryReservation": 0,
            "MemorySwap": 1048576000,
            "MemorySwappiness": null,
            "CpuCount": 0,
            "CpuPercent": 0,

Docker-compose限制容器CPU等 ​

Docker-compose限制容器CPU等