mirror of
https://github.com/ilyakooo0/nixpkgs.git
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135 lines
4.6 KiB
Nix
135 lines
4.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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diskSize = "30720";
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in
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{
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system.build.azureImage =
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pkgs.vmTools.runInLinuxVM (
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pkgs.runCommand "azure-image"
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{ preVM =
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''
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mkdir $out
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diskImage=$out/$diskImageBase
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cyl=$(((${diskSize}*1024*1024)/(512*63*255)))
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size=$(($cyl*255*63*512))
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roundedsize=$((($size/(1024*1024)+1)*(1024*1024)))
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${pkgs.vmTools.qemu-220}/bin/qemu-img create -f raw $diskImage $roundedsize
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mv closure xchg/
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'';
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postVM =
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''
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mkdir -p $out
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${pkgs.vmTools.qemu-220}/bin/qemu-img convert -f raw -O vpc $diskImage $out/disk.vhd
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rm $diskImage
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'';
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diskImageBase = "nixos-image-${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 ${diskSize}M
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${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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cp -prd $storePaths /mnt/nix/store/
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echo 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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echo 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} --option build-users-group ""
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echo 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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echo 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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echo Install a configuration.nix.
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mkdir -p /mnt/etc/nixos /mnt/boot/grub
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cp ${./azure-config-user.nix} /mnt/etc/nixos/configuration.nix
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echo Generate the GRUB menu.
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ln -s vda /dev/sda
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chroot /mnt ${config.system.build.toplevel}/bin/switch-to-configuration boot
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echo Almost done
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umount /mnt/proc /mnt/dev /mnt/sys
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umount /mnt
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''
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);
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imports = [ ./azure-common.nix ];
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# Azure metadata is available as a CD-ROM drive.
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fileSystems."/metadata".device = "/dev/sr0";
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systemd.services.fetch-ssh-keys =
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{ description = "Fetch host keys and authorized_keys for root user";
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wantedBy = [ "sshd.service" "waagent.service" ];
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before = [ "sshd.service" "waagent.service" ];
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after = [ "local-fs.target" ];
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path = [ pkgs.coreutils ];
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script =
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''
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eval "$(cat /metadata/CustomData.bin)"
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if ! [ -z "$ssh_host_ecdsa_key" ]; then
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echo "downloaded ssh_host_ecdsa_key"
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echo "$ssh_host_ecdsa_key" > /etc/ssh/ssh_host_ed25519_key
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chmod 600 /etc/ssh/ssh_host_ed25519_key
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fi
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if ! [ -z "$ssh_host_ecdsa_key_pub" ]; then
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echo "downloaded ssh_host_ecdsa_key_pub"
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echo "$ssh_host_ecdsa_key_pub" > /etc/ssh/ssh_host_ed25519_key.pub
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chmod 644 /etc/ssh/ssh_host_ed25519_key.pub
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fi
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if ! [ -z "$ssh_root_auth_key" ]; then
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echo "downloaded ssh_root_auth_key"
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mkdir -m 0700 -p /root/.ssh
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echo "$ssh_root_auth_key" > /root/.ssh/authorized_keys
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chmod 600 /root/.ssh/authorized_keys
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fi
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'';
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serviceConfig.Type = "oneshot";
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serviceConfig.RemainAfterExit = true;
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serviceConfig.StandardError = "journal+console";
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serviceConfig.StandardOutput = "journal+console";
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};
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}
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