google-compute-image: switch to use the common make-disk-image.nix
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@ -2,7 +2,7 @@
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with lib;
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with lib;
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let
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let
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diskSize = "1G";
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diskSize = 1024; # MB
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in
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in
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{
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{
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imports = [ ../profiles/headless.nix ../profiles/qemu-guest.nix ./grow-partition.nix ];
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imports = [ ../profiles/headless.nix ../profiles/qemu-guest.nix ./grow-partition.nix ];
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@ -10,89 +10,21 @@ in
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# https://cloud.google.com/compute/docs/tutorials/building-images
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# https://cloud.google.com/compute/docs/tutorials/building-images
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networking.firewall.enable = mkDefault false;
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networking.firewall.enable = mkDefault false;
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system.build.googleComputeImage =
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system.build.googleComputeImage = import ../../lib/make-disk-image.nix {
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pkgs.vmTools.runInLinuxVM (
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name = "google-compute-image";
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pkgs.runCommand "google-compute-image"
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postVM = ''
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{ preVM =
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PATH=$PATH:${pkgs.stdenv.lib.makeBinPath [ pkgs.gnutar pkgs.gzip ]}
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''
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pushd $out
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mkdir $out
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mv $diskImage disk.raw
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diskImage=$out/$diskImageBase
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tar -Szcf nixos-image-${config.system.nixosLabel}-${pkgs.stdenv.system}.tar.gz disk.raw
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truncate $diskImage --size ${diskSize}
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rm $out/disk.raw
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mv closure xchg/
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popd
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'';
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'';
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configFile = ./google-compute-config.nix;
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postVM =
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format = "raw";
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''
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inherit diskSize;
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PATH=$PATH:${pkgs.stdenv.lib.makeBinPath [ pkgs.gnutar pkgs.gzip ]}
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inherit config lib pkgs;
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pushd $out
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};
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mv $diskImageBase disk.raw
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tar -Szcf $diskImageBase.tar.gz disk.raw
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rm $out/disk.raw
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popd
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'';
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diskImageBase = "nixos-image-${config.system.nixosLabel}-${pkgs.stdenv.system}.raw";
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buildInputs = [ pkgs.utillinux pkgs.perl ];
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exportReferencesGraph =
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[ "closure" config.system.build.toplevel ];
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}
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''
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# Create partition table
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${pkgs.parted}/sbin/parted /dev/vda mklabel msdos
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${pkgs.parted}/sbin/parted /dev/vda mkpart primary ext4 1 ${diskSize}
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${pkgs.parted}/sbin/parted /dev/vda print
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. /sys/class/block/vda1/uevent
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mknod /dev/vda1 b $MAJOR $MINOR
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# Create an empty filesystem and mount it.
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${pkgs.e2fsprogs}/sbin/mkfs.ext4 -L nixos /dev/vda1
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${pkgs.e2fsprogs}/sbin/tune2fs -c 0 -i 0 /dev/vda1
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mkdir /mnt
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mount /dev/vda1 /mnt
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# The initrd expects these directories to exist.
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mkdir /mnt/dev /mnt/proc /mnt/sys
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mount --bind /proc /mnt/proc
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mount --bind /dev /mnt/dev
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mount --bind /sys /mnt/sys
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# Copy all paths in the closure to the filesystem.
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storePaths=$(perl ${pkgs.pathsFromGraph} /tmp/xchg/closure)
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mkdir -p /mnt/nix/store
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echo "copying everything (will take a while)..."
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${pkgs.rsync}/bin/rsync -a $storePaths /mnt/nix/store/
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# Register the paths in the Nix database.
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printRegistration=1 perl ${pkgs.pathsFromGraph} /tmp/xchg/closure | \
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chroot /mnt ${config.nix.package.out}/bin/nix-store --load-db --option build-users-group ""
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# Create the system profile to allow nixos-rebuild to work.
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chroot /mnt ${config.nix.package.out}/bin/nix-env \
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-p /nix/var/nix/profiles/system --set ${config.system.build.toplevel} \
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--option build-users-group ""
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# `nixos-rebuild' requires an /etc/NIXOS.
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mkdir -p /mnt/etc
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touch /mnt/etc/NIXOS
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# `switch-to-configuration' requires a /bin/sh
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mkdir -p /mnt/bin
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ln -s ${config.system.build.binsh}/bin/sh /mnt/bin/sh
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# Install a configuration.nix.
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mkdir -p /mnt/etc/nixos /mnt/boot/grub
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cp ${./google-compute-config.nix} /mnt/etc/nixos/configuration.nix
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# Generate the GRUB menu.
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ln -s vda /dev/sda
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chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot
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umount /mnt/proc /mnt/dev /mnt/sys
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umount /mnt
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''
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);
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fileSystems."/" = {
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fileSystems."/" = {
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device = "/dev/disk/by-label/nixos";
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device = "/dev/disk/by-label/nixos";
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