commit dec7ecbbbcc5f68ab8c96d39ba3c62eaf0326242 · pyrox.dev/nixpkgs

+24

nixos/maintainers/scripts/openstack/nova-image.nix

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       { config, lib, pkgs, ... }:

     

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       with lib;

     

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       {

     

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         imports =

     

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           [ ../../../modules/installer/cd-dvd/channel.nix

     

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             ../../../modules/virtualisation/nova-config.nix

     

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           ];

     

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         system.build.novaImage = import ../../../lib/make-disk-image.nix {

     

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           inherit lib config;

     

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           pkgs = import ../../../.. { inherit (pkgs) system; }; # ensure we use the regular qemu-kvm package

     

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           diskSize = 8192;

     

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           format = "qcow2";

     

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           configFile = pkgs.writeText "configuration.nix"

     

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             ''

     

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               {

     

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                 imports = [ <nixpkgs/nixos/modules/virtualisation/nova-config.nix> ];

     

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               }

     

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             '';

     

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         };

     

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       }

+51

nixos/modules/virtualisation/nova-config.nix

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       { config, lib, pkgs, ... }:

     

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       with lib;

     

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       {

     

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         imports = [

     

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           ../profiles/qemu-guest.nix

     

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           ../profiles/headless.nix

     

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         ];

     

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         config = {

     

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           fileSystems."/".device = "/dev/disk/by-label/nixos";

     

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           boot.kernelParams = [ "console=ttyS0" ];

     

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           boot.loader.grub.device = "/dev/vda";

     

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           boot.loader.timeout = 0;

     

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           # Allow root logins

     

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           services.openssh.enable = true;

     

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           services.openssh.permitRootLogin = "prohibit-password";

     

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           # Put /tmp and /var on /ephemeral0, which has a lot more space.

     

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           # Unfortunately we can't do this with the `fileSystems' option

     

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           # because it has no support for creating the source of a bind

     

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           # mount.  Also, "move" /nix to /ephemeral0 by layering a unionfs-fuse

     

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           # mount on top of it so we have a lot more space for Nix operations.

     

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           /*

     

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           boot.initrd.postMountCommands =

     

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             ''

     

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               mkdir -m 1777 -p $targetRoot/ephemeral0/tmp

     

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               mkdir -m 1777 -p $targetRoot/tmp

     

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               mount --bind $targetRoot/ephemeral0/tmp $targetRoot/tmp

     

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               mkdir -m 755 -p $targetRoot/ephemeral0/var

     

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               mkdir -m 755 -p $targetRoot/var

     

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               mount --bind $targetRoot/ephemeral0/var $targetRoot/var

     

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               mkdir -p /unionfs-chroot/ro-nix

     

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               mount --rbind $targetRoot/nix /unionfs-chroot/ro-nix

     

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               mkdir -p /unionfs-chroot/rw-nix

     

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               mkdir -m 755 -p $targetRoot/ephemeral0/nix

     

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               mount --rbind $targetRoot/ephemeral0/nix /unionfs-chroot/rw-nix

     

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               unionfs -o allow_other,cow,nonempty,chroot=/unionfs-chroot,max_files=32768 /rw-nix=RW:/ro-nix=RO $targetRoot/nix

     

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             '';

     

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             boot.initrd.supportedFilesystems = [ "unionfs-fuse" ];

     

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           */

     

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         };

     

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       }

-65

nixos/modules/virtualisation/nova-image.nix

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       # Usage:

     

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       # $ NIXOS_CONFIG=`pwd`/nixos/modules/virtualisation/nova-image.nix nix-build '<nixpkgs/nixos>' -A config.system.build.novaImage

     

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       { config, lib, pkgs, ... }:

     

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       with lib;

     

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       {

     

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         system.build.novaImage = import ../../lib/make-disk-image.nix {

     

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           inherit pkgs lib config;

     

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           partitioned = true;

     

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           diskSize = 1 * 1024;

     

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           configFile = pkgs.writeText "configuration.nix"

     

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             ''

     

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               {

     

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                 imports = [ <nixpkgs/nixos/modules/virtualisation/nova-image.nix> ];

     

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               }

     

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             '';

     

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         };

     

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         imports = [

     

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           ../profiles/qemu-guest.nix

     

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           ../profiles/headless.nix

     

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         ];

     

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         fileSystems."/".device = "/dev/disk/by-label/nixos";

     

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         boot.kernelParams = [ "console=ttyS0" ];

     

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         boot.loader.grub.device = "/dev/vda";

     

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         boot.loader.timeout = 0;

     

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         # Allow root logins

     

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         services.openssh.enable = true;

     

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         services.openssh.permitRootLogin = "prohibit-password";

     

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         # Put /tmp and /var on /ephemeral0, which has a lot more space.

     

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         # Unfortunately we can't do this with the `fileSystems' option

     

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         # because it has no support for creating the source of a bind

     

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         # mount.  Also, "move" /nix to /ephemeral0 by layering a unionfs-fuse

     

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         # mount on top of it so we have a lot more space for Nix operations.

     

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         /*

     

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         boot.initrd.postMountCommands =

     

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           ''

     

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             mkdir -m 1777 -p $targetRoot/ephemeral0/tmp

     

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             mkdir -m 1777 -p $targetRoot/tmp

     

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             mount --bind $targetRoot/ephemeral0/tmp $targetRoot/tmp

     

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             mkdir -m 755 -p $targetRoot/ephemeral0/var

     

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             mkdir -m 755 -p $targetRoot/var

     

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             mount --bind $targetRoot/ephemeral0/var $targetRoot/var

     

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             mkdir -p /unionfs-chroot/ro-nix

     

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             mount --rbind $targetRoot/nix /unionfs-chroot/ro-nix

     

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             mkdir -p /unionfs-chroot/rw-nix

     

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             mkdir -m 755 -p $targetRoot/ephemeral0/nix

     

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             mount --rbind $targetRoot/ephemeral0/nix /unionfs-chroot/rw-nix

     

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             unionfs -o allow_other,cow,nonempty,chroot=/unionfs-chroot,max_files=32768 /rw-nix=RW:/ro-nix=RO $targetRoot/nix

     

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           '';

     

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           boot.initrd.supportedFilesystems = [ "unionfs-fuse" ];

     

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         */

     

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       }