6d89aa8f1d
… as suggested by @NiklasGollenstede in: https://github.com/NixOS/nixpkgs/pull/206951#issuecomment-1369020601 This simplifies the user experience for logging into and debugging the machine and also simplifies the instructions for shutting down the machine gracefully.
1.9 KiB
darwin.builder
darwin.builder provides a way to bootstrap a Linux builder on a macOS machine.
This requires macOS version 12.4 or later.
This also requires that port 22 on your machine is free (since Nix does not permit specifying a non-default SSH port for builders).
You will also need to be a trusted user for your Nix installation. In other
words, your /etc/nix/nix.conf should have something like:
extra-trusted-users = <your username goes here>
To launch the builder, run the following flake:
$ nix run nixpkgs#darwin.builder
That will prompt you to enter your sudo password:
+ sudo --reset-timestamp /nix/store/…-install-credentials.sh ./keys
Password:
… so that it can install a private key used to ssh into the build server.
After that the script will launch the virtual machine and automatically log you
in as the builder user:
<<< Welcome to NixOS 22.11.20220901.1bd8d11 (aarch64) - ttyAMA0 >>>
Run 'nixos-help' for the NixOS manual.
nixos login: builder (automatic login)
[builder@nixos:~]$
Note: When you need to stop the VM, run
shutdown nowas thebuilderuser.
To delegate builds to the remote builder, add the following options to your
nix.conf file:
# - Replace ${ARCH} with either aarch64 or x86_64 to match your host machine
# - Replace ${MAX_JOBS} with the maximum number of builds (pick 4 if you're not sure)
builders = ssh-ng://builder@localhost ${ARCH}-linux /etc/nix/builder_ed25519 ${MAX_JOBS} - - - c3NoLWVkMjU1MTkgQUFBQUMzTnphQzFsWkRJMU5URTVBQUFBSUpCV2N4Yi9CbGFxdDFhdU90RStGOFFVV3JVb3RpQzVxQkorVXVFV2RWQ2Igcm9vdEBuaXhvcwo=
# Not strictly necessary, but this will reduce your disk utilization
builders-use-substitutes = true
… and then restart your Nix daemon to apply the change:
$ sudo launchctl kickstart -k system/org.nixos.nix-daemon