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flake: simplify the imgs/nixosConfigurations definition

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colin 2023-01-11 09:24:24 +00:00
parent a7ff90c843
commit a44a99e371
1 changed files with 22 additions and 28 deletions
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50
flake.nix
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@ -64,41 +64,35 @@
}
];
});
decl-bootable-host = { name, local, target }: rec {
nixosConfiguration = decl-host { inherit name local target; };
# this produces a EFI-bootable .img file (GPT with a /boot partition and a system (/ or /nix) partition).
# after building this:
# - flash it to a bootable medium (SD card, flash drive, HDD)
# - resize the root partition (use cfdisk)
# - mount the part
# - chown root:nixbld <part>/nix/store
# - chown root:root -R <part>/nix/store/*
# - chown root:root -R <part>/persist # if using impermanence
# - populate any important things (persist/, home/colin/.ssh, etc)
# - boot
# - if fs wasn't resized automatically, then `sudo btrfs filesystem resize max /`
# - checkout this flake into /etc/nixos AND UPDATE THE FS UUIDS.
# - `nixos-rebuild --flake './#<host>' switch`
img = nixosConfiguration.config.system.build.img;
};
hosts = {
servo = decl-bootable-host { name = "servo"; local = "x86_64-linux"; target = "x86_64-linux"; };
desko = decl-bootable-host { name = "desko"; local = "x86_64-linux"; target = "x86_64-linux"; };
lappy = decl-bootable-host { name = "lappy"; local = "x86_64-linux"; target = "x86_64-linux"; };
moby = decl-bootable-host { name = "moby"; local = "aarch64-linux"; target = "aarch64-linux"; };
in {
nixosConfigurations = {
servo = decl-host { name = "servo"; local = "x86_64-linux"; target = "x86_64-linux"; };
desko = decl-host { name = "desko"; local = "x86_64-linux"; target = "x86_64-linux"; };
lappy = decl-host { name = "lappy"; local = "x86_64-linux"; target = "x86_64-linux"; };
moby = decl-host { name = "moby"; local = "aarch64-linux"; target = "aarch64-linux"; };
# special cross-compiled variant, to speed up deploys from an x86 box to the arm target
# note that these *do* produce different store paths, because the closure for the tools used to cross compile
# v.s. emulate differ.
# so deploying foo-cross and then foo incurs some rebuilding.
moby-cross = decl-bootable-host { name = "moby"; local = "x86_64-linux"; target = "aarch64-linux"; };
rescue = decl-bootable-host { name = "rescue"; local = "x86_64-linux"; target = "x86_64-linux"; };
moby-cross = decl-host { name = "moby"; local = "x86_64-linux"; target = "aarch64-linux"; };
rescue = decl-host { name = "rescue"; local = "x86_64-linux"; target = "x86_64-linux"; };
};
in {
nixosConfigurations = builtins.mapAttrs (name: value: value.nixosConfiguration) hosts;
# unofficial output
imgs = builtins.mapAttrs (name: value: value.img) hosts;
# this produces a EFI-bootable .img file (GPT with a /boot partition and a system (/ or /nix) partition).
# after building this:
# - flash it to a bootable medium (SD card, flash drive, HDD)
# - resize the root partition (use cfdisk)
# - mount the part
# - chown root:nixbld <part>/nix/store
# - chown root:root -R <part>/nix/store/*
# - chown root:root -R <part>/persist # if using impermanence
# - populate any important things (persist/, home/colin/.ssh, etc)
# - boot
# - if fs wasn't resized automatically, then `sudo btrfs filesystem resize max /`
# - checkout this flake into /etc/nixos AND UPDATE THE FS UUIDS.
# - `nixos-rebuild --flake './#<host>' switch`
imgs = builtins.mapAttrs (name: value: value.config.system.build.img) self.nixosConfigurations;
overlays = rec {
default = pkgs;