Hassan Selim hassanselim0

Backup and restore WSL2 vhdx, avoid 256GB vhdx limit for docker desktop WSL2 native

Review all steps to view the symptom this Gist addresses, customize a workaround to allow for >256GB Docker pulls safely on Windows, then perform a backup and recovery of the result (export and import). Please provide comments on any failures.

Determine the expected size of the docker-desktop-data volume

Get the base image size + additional + all docker volumes using docker system df
Add raw uncompressed size for alpine (50MB), docker for your version of windows (700MB) and linux (80MB)

docker system df

Enable `systemd` in WSL 2

**NOTE: If you have Windows 11 there is now an official way to do this in WSL 2, use it if possible - see MS post here (WINDOWS 11 ONLY)**

This guide will enable systemd to run as normal under WSL 2. This will enable services like microk8s, docker and many more to just work during a WSL session. Note: this was tested on Windows 10 Build 2004, running Ubuntu 20.04 LTS in WSL 2.

To enable systemd under WSL we require a tool called systemd-genie
Copy the contents of install-sg.sh to a new file /tmp/install-sg.sh:

Remote debugging in Docker (for Django apps)

In order to enable debugging for your Django app running in a Docker container, follow these steps using Visual Studio (Code):

Add ptvsd to your requirements.txt file

ptvsd == 4.3.2

To your launch.json, add this:

	// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
	// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
	(() => {
	const SHOW_SIDES = false; // color sides of DOM nodes?
	const COLOR_SURFACE = true; // color tops of DOM nodes?
	const COLOR_RANDOM = false; // randomise color?
	const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
	const MAX_ROTATION = 180; // set to 360 to rotate all the way round
	const THICKNESS = 20; // thickness of layers
	const DISTANCE = 10000; // ¯\\_(ツ)_/¯

	using System;
	using System.Collections.Concurrent;

	namespace ns
	{
	//even though this looks like it only takes functions with one input
	// by using C# tuple types, one can have any number of inputs (or outputs)
	// see example below
	public class Memoized<T, TResult>
	{

	from functools import partial

	import pydantic
	import logging

	from django.contrib.postgres.fields import JSONField
	from typing import Type, Union, Tuple

	from django.core.serializers.json import DjangoJSONEncoder

	#based on po75558Manuel Patrone comment on https://forums.docker.com/t/how-can-i-ssh-into-the-betas-mobylinuxvm/10991/8

	#get a privileged container with access to Docker daemon
	docker run --privileged -it --rm -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker alpine sh

	#run a container with full root access to MobyLinuxVM and no seccomp profile (so you can mount stuff)
	docker run --net=host --ipc=host --uts=host --pid=host -it --security-opt=seccomp=unconfined --privileged --rm -v /:/host alpine /bin/sh

	#switch to host FS
	chroot /host

	@echo off
	set username=DosAmp

	cd /D %appdata%\.minecraft
	start javaw -Xms512m -Xmx1024m -cp bin/lwjgl.jar;bin/lwjgl_util.jar;bin/jinput.jar;bin/minecraft.jar -Djava.library.path="%appdata%\.minecraft\bin\natives" net.minecraft.client.Minecraft "%username%"

	/*
	* Copyright (c) 2013 Calvin Rien
	*
	* Based on the JSON parser by Patrick van Bergen
	* http://techblog.procurios.nl/k/618/news/view/14605/14863/How-do-I-write-my-own-parser-for-JSON.html
	*
	* Simplified it so that it doesn't throw exceptions
	* and can be used in Unity iPhone with maximum code stripping.
	*
	* Permission is hereby granted, free of charge, to any person obtaining