WSL2 + Docker odds & ends

Use more than 8GB RAM

[Details]. Docker + WSL2 defaults to only use 8GB system RAM. Bump it up to max.

1. Edit C:\Users\yourUserName\.wslconfig

   [wsl2]
   #kernel=C:\\temp\\myCustomKernel
   memory=4GB # Limits VM memory in WSL 2 to 4 GB
   #processors=2 # Makes the WSL 2 VM use two virtual processors
   

2. Restart WSL (wsl --shutdown in Powershell)

.profile tweaks

1. WSL2 uses .profile, but many installs default to .bashrc (eg Anaconda). Load .bashrc via .profile

   if [ -n "$BASH_VERSION" ]; then
       # include .bashrc if it exists
       if [ -f "$HOME/.bashrc" ]; then
           . "$HOME/.bashrc"
       fi
   fi
   

2. Tmux with colors: export TERM=xterm-256color

Clear cache (mem leak)

Docker on WSL2 has a memory leak. Periodically clear the cache

1. echo 1 | sudo tee /proc/sys/vm/drop_caches

Install Python

1. Download Anaconda for Linux
2. sh ./Anaconda-whatever.sh
3. If conda command not recognized after shell restart, try moving whatever it added to ~\.bashrc to ~\.profile

docker-compose w GPU support

[Details]

1. Install forked docker-compose via pip

   pip install git+https://github.com/docker/docker-py.git
   pip install git+https://github.com/yoanisgil/compose.git@device-requests --ignore-installed PyYAML
   

2. Edit ~/.profile: export COMPOSE_API_VERSION=auto
3. Looks like the above got merged into docker-compose, but still not working for me without forked docker-compose. Revisit.

Other

See more tricks here (note-to-self: add the useful ones into this post).

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