78 lines
2.4 KiB
Nix
78 lines
2.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.virtualisation.azureImage;
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in
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{
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imports = [ ./azure-common.nix ];
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options = {
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virtualisation.azureImage.diskSize = mkOption {
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type = with types; either (enum [ "auto" ]) int;
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default = "auto";
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example = 2048;
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description = lib.mdDoc ''
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Size of disk image. Unit is MB.
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'';
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};
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virtualisation.azureImage.contents = mkOption {
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type = with types; listOf attrs;
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default = [ ];
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description = lib.mdDoc ''
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Extra contents to add to the image.
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'';
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};
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};
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config = {
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system.build.azureImage = import ../../lib/make-disk-image.nix {
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name = "azure-image";
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postVM = ''
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${pkgs.vmTools.qemu}/bin/qemu-img convert -f raw -o subformat=fixed,force_size -O vpc $diskImage $out/disk.vhd
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rm $diskImage
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'';
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configFile = ./azure-config-user.nix;
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format = "raw";
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inherit (cfg) diskSize contents;
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inherit config lib pkgs;
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};
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# Azure metadata is available as a CD-ROM drive.
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fileSystems."/metadata".device = "/dev/sr0";
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systemd.services.fetch-ssh-keys = {
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description = "Fetch host keys and authorized_keys for root user";
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wantedBy = [ "sshd.service" "waagent.service" ];
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before = [ "sshd.service" "waagent.service" ];
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path = [ pkgs.coreutils ];
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script =
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''
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eval "$(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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}
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