Nix Builder Image

This image serves as a Nix remote builder with an automatically started SSH server. You can provide your SSH public keys as arguments.

Usage

1. Add SSH Key: Ensure your SSH key is added using ssh-add. Verify that ssh-add -L lists your public keys.

2. Start Container: Run the container with:

   docker run --rm -dp 22:22 ghcr.io/litarvan/nix-builder:2.27.1 "$(ssh-add -L)"

3. Copy SSH Keys: Make your SSH keys accessible to the root user:

   sudo cp -r ~/.ssh /var/root

4. Register Builder: Add the builder to your Nix configuration:

   mkdir -p ~/.config/nix && cat <<EOF >> ~/.config/nix/nix.conf
   builders = ssh://root@127.0.0.1 aarch64-linux
   builders-use-substitutes = true
   EOF

5. Test Connection: Verify the setup by testing the SSH connection:

   sudo ssh root@127.0.0.1 nix --version

6. Trusted User: Ensure you are a trusted user in your Nix installation. Add your username to ~/.config/nix/nix.conf:

   extra-trusted-users = <your-username>

This setup enables you to use the Nix remote builder effectively.