docker - 兼容模式不支持以下部署子键

Question

我必须为服务使用 500MB 的内存限制和设置为 0.6 的 CPU，我还需要在 docker-compose 文件中使用版本 3。

我尝试:$ docker-compose docker_compose.yml --compatibility up
我得到:
WARNING: The following deploy sub-keys are not supported in compatibility mode and have been ignored: resources.reservations.cpus

version: '3.3'

services:
   web:
     image: myimage:1.2.3
     volumes:
       - 'delle:/home/rh'
     deploy:
      resources:
        limits:
          memory: 500M
        reservations:
          cpus: '0.6'
     networks:
       - mynetwork
       - internal

networks:
  mynetwork:
    external: true
  internal:
volumes:
    delle:

有人可以帮忙吗？只有群吗？

Answer 1

不妨将 v2 用于 docker-compose file .

version: "2.4"

services:
   web:
     image: myimage:1.2.3
     volumes:
       - 'delle:/home/rh'
     cpu_count: 1
     cpus: 0.6
     cpu_percent: 30
     mem_limit: 500m
     networks:
       - mynetwork
       - internal

networks:
  mynetwork:
    external: true
  internal:
volumes:
    delle

对于 v3，这解释了为什么它不支持 resources.reservations.cpus和 resources.limits.cpus作为内存。见 thread

Docker Compose doesn't work with swarm mode (it deploys local containers), so there's no orchestrator to take those limits into account

正如@Kalpesh 指出的(在我的评论下方)，尝试删除 资源，预留cpu .
您可以通过以下方式检查它:

# run compatibility
docker-compose --compatibility up -d

docker inspect --format '{{json .HostConfig.Memory}}' <CONTAINER_NAME> | numfmt --to=iec

docker inspect --format '{{json .HostConfig.NanoCpus}}' <CONTAINER_NAME> | numfmt --to=iec