SteamOS VSCode + Docker guide

steamos-vscode-docker-guide.md

SteamOS VSCode + Docker guide

1. Install Docker:

   sudo pacman -S docker

2. Enable Docker systemctl unit:

   sudo systemctl enable docker.service
   sudo systemctl enable containerd.service

3. Allow X access to containers:

   xhost +si:localuser:$USER

4. Install distrobox:

   curl -s https://raw.githubusercontent.com/89luca89/distrobox/main/install | sudo sh

5. Create an ubuntu distrobox image with mounted docker.sock:

   distrobox create --name ubuntu-22-04 --image ubuntu:22.04 --volume /var/run/docker.sock:/var/run/docker.sock

6. The following steps should be executed in the distrobox container. Enter the distrobox container shell:

   distrobox enter ubuntu-22-04

7. Install Docker CLI and common plugins (Docker installation taken from official docs):

   sudo chmod 666 /var/run/docker.sock
   sudo apt-get update
   sudo apt-get install ca-certificates curl gnupg lsb-release
   sudo mkdir -m 0755 -p /etc/apt/keyrings
   curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
   echo \
     "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
     $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
   sudo apt-get update
   sudo apt-get install docker-ce-cli docker-buildx-plugin docker-compose-plugin
   sudo usermod -aG docker $USER
   docker info

8. Install VSCode (download x64 .deb package here):

   sudo dpkg -i ~/Downloads/code_1.76.2-1678817801_amd64.deb
   sudo apt-get -f install

9. Allow host xdg-open to process requests from inside the distrobox container:

   sudo ln -s /usr/bin/distrobox-host-exec /usr/local/bin/xdg-open

10. Export VSCode shortcut:

    distrobox-export --app code

Everything else should work as usual.

Fails on step 5:

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Someone will roast me for this, but I ended up installing Homebrew to get Docker on here so I could bypass using sudo, using pacman, adding an Ubuntu distrobox, and/or constantly toggling steamos readonly filesystem on and off.

The Homebrew docker from what I understand is essentially the correct docker-ce edition that we want, but it doesn't have Docker Engine, which is where Colima comes in.

So I did

brew install colima docker
colima start

Although something hinky happened and I did a brew uninstall qemu colima and brew install qemu colima once again and it worked.