CPU docker 构建命令期间的资源 Windows

Question

如何控制 Windows 上的 docker build 命令使用了多少个逻辑处理器？

我有这个 dockerfile:

FROM mcr.microsoft.com/windows/servercore:1803
SHELL ["powershell", "-NoLogo"]
RUN Get-ComputerInfo -Property *proc*
CMD Get-ComputerInfo -Property *proc*

当我构建图像时，我看到以下输出：

CsNumberOfLogicalProcessors : 2
CsNumberOfProcessors        : 1

请注意，我的计算机有 4 个逻辑处理器，当我使用运行带有 --cpus 4 选项的容器时，我得到了预期的结果：

CsNumberOfLogicalProcessors : 4
CsNumberOfProcessors        : 1

让我感到困惑的是为什么 docker build 不支持 --cpus 选项，因为它运行在创建图像层时是容器。

Docker 信息：

Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 41
Server Version: 18.09.0
Storage Driver: windowsfilter
 Windows:
Logging Driver: json-file
Plugins:
 Volume: local
 Network: ics l2bridge l2tunnel nat null overlay transparent
 Log: awslogs etwlogs fluentd gelf json-file local logentries splunk syslog
Swarm: inactive
Default Isolation: hyperv
Kernel Version: 10.0 17763 (17763.1.amd64fre.rs5_release.180914-1434)
Operating System: Windows 10 Pro Version 1809 (OS Build 17763.194)
OSType: windows
Architecture: x86_64
CPUs: 4
Total Memory: 7.891GiB
Name: Robo
ID: K3BP:UY7Z:JEXA:EJZ6:IYK6:WMW4:L4P4:5GTY:VR7K:SQKR:5QMO:AIEA
Docker Root Dir: C:\ProgramData\Docker
Debug Mode (client): false
Debug Mode (server): true
 File Descriptors: -1
 Goroutines: 28
 System Time: 2018-12-16T16:48:59.7060639Z
 EventsListeners: 1
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false
Product License: Community Engine

Answer 1

目前不支持。您可以在此处跟踪问题 https://github.com/moby/moby/issues/38387

CPU docker 构建命令期间的资源 Windows

CPU resources during docker build command on Windows

docker

docker-build

docker-for-windows