关于docker中 WSL 配置与修改问题

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https://docs.microsoft.com/en-us/windows/wsl/wsl-config
.wslconfig

   

• Stored in your
  1. %UserProfile%

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  directory.   
  
• Used to configure settings globally across all installed Linux distributions running as the WSL 2 version.Can be usedonly for distributions run by WSL 2.   
  
• Distributions running as WSL 1 will not be affected by this configuration as they are not running as a virtual machine.   
  
• To get to your
  1. %UserProfile%

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  directory, in PowerShell, use
  1. cd ~

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  to access your home directory (which is typically your user profile,
  1. C:\Users\<UserName>

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  ) or you can open Windows File Explorer and enter
  1. %UserProfile%

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  in the address bar. The directory path should look something like:
  1. C:\Users\<UserName>\.wslconfig

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  .WSL will detect the existence of these files, read the contents, and automatically apply the configuration settings every time you launch WSL. If the file is missing or malformed (improper markup formatting), WSL will continue to launch as normal without the configuration settings applied.
  

Check which version of WSL you are running.
Note
Adjusting per-distribution settings with the wsl.conf file is only available in Windows Build 17093 and later.

Configuration setting for .wslconfig

The .wslconfig file configures settings globally for all Linux distributions running with WSL 2.(For per-distribution configuration seewsl.conf).
See.wslconfigfor info on where to store the .wslconfig file.
Note
Global configuration options with

1. .wslconfig

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is only available for distributions running as WSL 2 in Windows Build 19041 and later. Keep in mind you may need to run

1. wsl --shutdown

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to shut down the WSL 2 VM and then restart your WSL instance for these changes to take affect.
This file can contain the following options that affect the VM that powers any WSL 2 distribution:
Section label:

1. [wsl2]

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            key            value            default            notes                                    kernel            string            The Microsoft built kernel provided inbox            An absolute Windows path to a custom Linux kernel.                            memory            size            50% of total memory on Windows or 8GB, whichever is less; on builds before 20175: 80% of your total memory on Windows            How much memory to assign to the WSL 2 VM.                            processors            number            The same number of processors on Windows            How many processors to assign to the WSL 2 VM.                            localhostForwarding            boolean            true            Boolean specifying if ports bound to wildcard or localhost in the WSL 2 VM should be connectable from the host via localhost:port.                            kernelCommandLine            string            Blank            Additional kernel command line arguments.                            swap            size            25% of memory size on Windows rounded up to the nearest GB            How much swap space to add to the WSL 2 VM, 0 for no swap file. Swap storage is disk-based RAM used when memory demand exceeds limit on hardware device.                            swapFile            string            %USERPROFILE%\AppData\Local\Temp\swap.vhdx            An absolute Windows path to the swap virtual hard disk.                            pageReporting            boolean            true            Default true setting enables Windows to reclaim unused memory allocated to WSL 2 virtual machine.                            guiApplications            boolean*            true            Boolean to turn on or off support for GUI applications (WSLg) in WSL. Only available for Windows 11.                            debugConsole            boolean*            false            Boolean to turn on an output console Window that shows the contents of dmesg upon start of a WSL 2 distro instance. Only available for Windows 11.                            nestedVirtualization            boolean*            true            Boolean to turn on or off nested virtualization, enabling other nested VMs to run inside WSL 2. Only available for Windows 11.                            vmIdleTimeout            number*            60000            The number of milliseconds that a VM is idle, before it is shut down. Only available for Windows 11.        Entries with the

1. path

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value must be Windows paths with escaped backslashes, e.g:

1. C:\\Temp\\myCustomKernel

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Entries with the

1. size

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value must be a size followed by a unit, for example

1. 8GB

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or

1. 512MB

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.
Entries with an * after the value type are only available on Windows 11.
Example .wslconfig file

The

1. .wslconfig

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sample file below demonstrates some of the configuration options available. In this example, the file path is

1. C:\Users\<UserName>\.wslconfig

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.

1. # Settings apply across all Linux distros running on WSL 2
   
2. [wsl2]
   
3. 
   
4. # Limits VM memory to use no more than 4 GB, this can be set as whole numbers using GB or MB
   
5. memory=4GB
   
6. 
   
7. # Sets the VM to use two virtual processors
   
8. processors=2
   
9. 
   
10. # Specify a custom Linux kernel to use with your installed distros. The default kernel used can be found at https://github.com/microsoft/WSL2-Linux-Kernel
    
11. kernel=C:\\temp\\myCustomKernel
    
12. 
    
13. # Sets additional kernel parameters, in this case enabling older Linux base images such as Centos 6
    
14. kernelCommandLine = vsyscall=emulate
    
15. 
    
16. # Sets amount of swap storage space to 8GB, default is 25% of available RAM
    
17. swap=8GB
    
18. 
    
19. # Sets swapfile path location, default is %USERPROFILE%\AppData\Local\Temp\swap.vhdx
    
20. swapfile=C:\\temp\\wsl-swap.vhdx
    
21. 
    
22. # Disable page reporting so WSL retains all allocated memory claimed from Windows and releases none back when free
    
23. pageReporting=false
    
24. 
    
25. # Turn off default connection to bind WSL 2 localhost to Windows localhost
    
26. localhostforwarding=true
    
27. 
    
28. # Disables nested virtualization
    
29. nestedVirtualization=false
    
30. 
    
31. # Turns on output console showing contents of dmesg when opening a WSL 2 distro for debugging
    
32. debugConsole=true

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