355 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			355 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
| { pkgs, system, ... }:
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| 
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| with pkgs.lib;
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| with import ../lib/qemu-flags.nix;
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| 
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| let
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| 
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|   # Build the ISO.  This is the regular installation CD but with test
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|   # instrumentation.
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|   iso =
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|     (import ../lib/eval-config.nix {
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|       inherit system;
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|       modules =
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|         [ ../modules/installer/cd-dvd/installation-cd-graphical.nix
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|           ../modules/testing/test-instrumentation.nix
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|           { key = "serial";
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|             boot.loader.grub.timeout = mkOverrideTemplate 0 {} 0;
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| 
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|             # The test cannot access the network, so any sources we
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|             # need must be included in the ISO.
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|             isoImage.storeContents =
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|               [ pkgs.glibcLocales
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|                 pkgs.sudo
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|                 pkgs.docbook5
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|                 pkgs.docbook5_xsl
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|                 pkgs.grub
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|                 pkgs.perlPackages.XMLLibXML
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|                 pkgs.unionfs-fuse
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|               ];
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|           }
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|         ];
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|     }).config.system.build.isoImage;
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| 
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| 
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|   # The configuration to install.
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|   config = { fileSystems, testChannel, grubVersion, grubDevice }: pkgs.writeText "configuration.nix"
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|     ''
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|       { config, pkgs, modulesPath, ... }:
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| 
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|       { imports =
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|           [ ./hardware-configuration.nix
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|             "''${modulesPath}/testing/test-instrumentation.nix"
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|           ];
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| 
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|         boot.loader.grub.version = ${toString grubVersion};
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|         ${optionalString (grubVersion == 1) ''
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|           boot.loader.grub.splashImage = null;
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|         ''}
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|         boot.loader.grub.device = "${grubDevice}";
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|         boot.loader.grub.extraConfig = "serial; terminal_output.serial";
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|         boot.initrd.kernelModules = [ "virtio_console" ];
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| 
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|         environment.systemPackages = [ ${optionalString testChannel "pkgs.rlwrap"} ];
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|       }
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|     '';
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| 
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|   rootFS =
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|     ''
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|       fileSystems."/".device = "/dev/disk/by-label/nixos";
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|     '';
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| 
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|   bootFS =
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|     ''
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|       fileSystems."/boot".device = "/dev/disk/by-label/boot";
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|     '';
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| 
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| 
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|   # Configuration of a web server that simulates the Nixpkgs channel
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|   # distribution server.
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|   webserver =
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|     { config, pkgs, ... }:
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| 
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|     { services.httpd.enable = true;
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|       services.httpd.adminAddr = "foo@example.org";
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|       services.httpd.servedDirs = singleton
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|         { urlPath = "/";
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|           dir = "/tmp/channel";
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|         };
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| 
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|       virtualisation.writableStore = true;
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|       virtualisation.pathsInNixDB = channelContents ++ [ pkgs.hello.src ];
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|       virtualisation.memorySize = 768;
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|     };
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| 
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|   channelContents = [ pkgs.rlwrap ];
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| 
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| 
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|   # The test script boots the CD, installs NixOS on an empty hard
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|   # disk, and then reboot from the hard disk.  It's parameterized with
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|   # a test script fragment `createPartitions', which must create
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|   # partitions and filesystems, and a configuration.nix fragment
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|   # `fileSystems'.
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|   testScriptFun = { createPartitions, fileSystems, testChannel, grubVersion, grubDevice }:
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|     let iface = if grubVersion == 1 then "scsi" else "virtio"; in
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|     ''
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|       createDisk("harddisk", 4 * 1024);
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| 
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|       my $machine = createMachine({ hda => "harddisk",
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|         hdaInterface => "${iface}",
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|         cdrom => glob("${iso}/iso/*.iso"),
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|         qemuFlags => '${optionalString testChannel (toString (qemuNICFlags 1 1 2))} ${optionalString (pkgs.stdenv.system == "x86_64-linux") "-cpu kvm64"}'});
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|       $machine->start;
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| 
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|       ${optionalString testChannel ''
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|         # Create a channel on the web server containing a few packages
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|         # to simulate the Nixpkgs channel.
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|         $webserver->start;
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|         $webserver->waitForUnit("httpd");
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|         $webserver->succeed(
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|             "nix-push --bzip2 --dest /tmp/channel --manifest --url-prefix http://nixos.org/channels/nixos-unstable " .
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|             "${toString channelContents} >&2");
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|         $webserver->succeed("mkdir /tmp/channel/sha256");
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|         $webserver->succeed("cp ${pkgs.hello.src} /tmp/channel/sha256/${pkgs.hello.src.outputHash}");
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|       ''}
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| 
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|       # Make sure that we get a login prompt etc.
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|       $machine->succeed("echo hello");
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|       #$machine->waitForUnit('getty@tty2');
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|       $machine->waitForUnit("rogue");
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|       $machine->waitForUnit("nixos-manual");
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|       $machine->waitForUnit("dhcpcd");
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| 
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|       ${optionalString testChannel ''
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|         # Allow the machine to talk to the fake nixos.org.
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|         $machine->succeed(
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|             "rm /etc/hosts",
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|             "echo 192.168.1.1 nixos.org cache.nixos.org tarballs.nixos.org > /etc/hosts",
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|             "ifconfig eth1 up 192.168.1.2",
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|         );
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| 
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|         # Test nix-env.
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|         $machine->fail("hello");
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|         $machine->succeed("nix-env -i hello");
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|         $machine->succeed("hello") =~ /Hello, world/
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|             or die "bad `hello' output";
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|       ''}
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| 
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|       # Partition the disk.
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|       ${createPartitions}
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| 
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|       # Create the NixOS configuration.
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|       $machine->succeed(
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|           "nixos-generate-config --root /mnt",
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|       );
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| 
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|       $machine->succeed("cat /mnt/etc/nixos/hardware-configuration.nix >&2");
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| 
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|       $machine->copyFileFromHost(
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|           "${ config { inherit fileSystems testChannel grubVersion grubDevice; } }",
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|           "/mnt/etc/nixos/configuration.nix");
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| 
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|       # Perform the installation.
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|       $machine->succeed("nixos-install >&2");
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| 
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|       # Do it again to make sure it's idempotent.
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|       $machine->succeed("nixos-install >&2");
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| 
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|       $machine->shutdown;
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| 
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|       # Now see if we can boot the installation.
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|       my $machine = createMachine({ hda => "harddisk", hdaInterface => "${iface}" });
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| 
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|       # Did /boot get mounted, if appropriate?
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|       $machine->waitForUnit("local-fs.target");
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|       $machine->succeed("test -e /boot/grub");
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| 
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|       # Did the swap device get activated?
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|       $machine->waitForUnit("swap.target");
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|       $machine->succeed("cat /proc/swaps | grep -q /dev");
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| 
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|       $machine->succeed("nix-env -i coreutils >&2");
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|       $machine->succeed("type -tP ls | tee /dev/stderr") =~ /.nix-profile/
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|           or die "nix-env failed";
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| 
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|       $machine->succeed("nixos-rebuild switch >&2");
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| 
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|       # Test nixos-option.
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|       $machine->succeed("nixos-option boot.initrd.kernelModules | grep virtio_console");
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|       $machine->succeed("nixos-option -d boot.initrd.kernelModules | grep 'List of modules'");
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|       $machine->succeed("nixos-option -l boot.initrd.kernelModules | grep /etc/nixos/configuration.nix");
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| 
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|       $machine->shutdown;
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| 
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|       # And just to be sure, check that the machine still boots after
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|       # "nixos-rebuild switch".
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|       my $machine = createMachine({ hda => "harddisk", hdaInterface => "${iface}" });
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|       $machine->waitForUnit("network.target");
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|       $machine->shutdown;
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|     '';
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| 
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| 
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|   makeTest = { createPartitions, fileSystems, testChannel ? false, grubVersion ? 2, grubDevice ? "/dev/vda" }:
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|     { inherit iso;
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|       nodes = if testChannel then { inherit webserver; } else { };
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|       testScript = testScriptFun {
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|         inherit createPartitions fileSystems testChannel grubVersion grubDevice;
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|       };
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|     };
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| 
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| 
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| in {
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| 
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|   # !!! `parted mkpart' seems to silently create overlapping partitions.
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| 
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| 
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|   # The (almost) simplest partitioning scheme: a swap partition and
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|   # one big filesystem partition.
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|   simple = makeTest
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|     { createPartitions =
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|         ''
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|           $machine->succeed(
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|               "parted /dev/vda mklabel msdos",
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|               "parted /dev/vda -- mkpart primary linux-swap 1M 1024M",
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|               "parted /dev/vda -- mkpart primary ext2 1024M -1s",
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|               "udevadm settle",
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|               "mkswap /dev/vda1 -L swap",
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|               "swapon -L swap",
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|               "mkfs.ext3 -L nixos /dev/vda2",
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|               "mount LABEL=nixos /mnt",
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|           );
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|         '';
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|       fileSystems = rootFS;
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|       testChannel = true;
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|     };
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| 
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|   # Same as the previous, but now with a separate /boot partition.
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|   separateBoot = makeTest
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|     { createPartitions =
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|         ''
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|           $machine->succeed(
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|               "parted /dev/vda mklabel msdos",
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|               "parted /dev/vda -- mkpart primary ext2 1M 50MB", # /boot
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|               "parted /dev/vda -- mkpart primary linux-swap 50MB 1024M",
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|               "parted /dev/vda -- mkpart primary ext2 1024M -1s", # /
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|               "udevadm settle",
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|               "mkswap /dev/vda2 -L swap",
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|               "swapon -L swap",
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|               "mkfs.ext3 -L nixos /dev/vda3",
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|               "mount LABEL=nixos /mnt",
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|               "mkfs.ext3 -L boot /dev/vda1",
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|               "mkdir /mnt/boot",
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|               "mount LABEL=boot /mnt/boot",
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|           );
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|         '';
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|       fileSystems = rootFS + bootFS;
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|     };
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| 
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|   # Create two physical LVM partitions combined into one volume group
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|   # that contains the logical swap and root partitions.
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|   lvm = makeTest
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|     { createPartitions =
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|         ''
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|           $machine->succeed(
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|               "parted /dev/vda mklabel msdos",
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|               "parted /dev/vda -- mkpart primary 1M 2048M", # first PV
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|               "parted /dev/vda -- set 1 lvm on",
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|               "parted /dev/vda -- mkpart primary 2048M -1s", # second PV
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|               "parted /dev/vda -- set 2 lvm on",
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|               "udevadm settle",
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|               "pvcreate /dev/vda1 /dev/vda2",
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|               "vgcreate MyVolGroup /dev/vda1 /dev/vda2",
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|               "lvcreate --size 1G --name swap MyVolGroup",
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|               "lvcreate --size 2G --name nixos MyVolGroup",
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|               "mkswap -f /dev/MyVolGroup/swap -L swap",
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|               "swapon -L swap",
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|               "mkfs.xfs -L nixos /dev/MyVolGroup/nixos",
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|               "mount LABEL=nixos /mnt",
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|           );
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|         '';
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|       fileSystems = rootFS;
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|     };
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| 
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|   /*
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|   swraid = makeTest
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|     { createPartitions =
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|         ''
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|           $machine->succeed(
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|               "parted /dev/vda --"
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|               . " mklabel msdos"
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|               . " mkpart primary ext2 1M 30MB" # /boot
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|               . " mkpart extended 30M -1s"
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|               . " mkpart logical 31M 1531M" # md0 (root), first device
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|               . " mkpart logical 1540M 3040M" # md0 (root), second device
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|               . " mkpart logical 3050M 3306M" # md1 (swap), first device
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|               . " mkpart logical 3320M 3576M", # md1 (swap), second device
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|               "udevadm settle",
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|               "ls -l /dev/vda* >&2",
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|               "cat /proc/partitions >&2",
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|               "mdadm --create --force /dev/md0 --metadata 1.2 --level=raid1 --raid-devices=2 /dev/vda5 /dev/vda6",
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|               "mdadm --create --force /dev/md1 --metadata 1.2 --level=raid1 --raid-devices=2 /dev/vda7 /dev/vda8",
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|               "udevadm settle",
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|               "mkswap -f /dev/md1 -L swap",
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|               "swapon -L swap",
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|               "mkfs.ext3 -L nixos /dev/md0",
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|               "mount LABEL=nixos /mnt",
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|               "mkfs.ext3 -L boot /dev/vda1",
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|               "mkdir /mnt/boot",
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|               "mount LABEL=boot /mnt/boot",
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|               "udevadm settle",
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|               "mdadm -W /dev/md0", # wait for sync to finish; booting off an unsynced device tends to fail
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|               "mdadm -W /dev/md1",
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|           );
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|         '';
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|       fileSystems = rootFS + bootFS;
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|     };
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|   */
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| 
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|   # Test a basic install using GRUB 1.
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|   grub1 = makeTest
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|     { createPartitions =
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|         ''
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|           $machine->succeed(
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|               "parted /dev/sda mklabel msdos",
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|               "parted /dev/sda -- mkpart primary linux-swap 1M 1024M",
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|               "parted /dev/sda -- mkpart primary ext2 1024M -1s",
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|               "udevadm settle",
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|               "mkswap /dev/sda1 -L swap",
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|               "swapon -L swap",
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|               "mkfs.ext3 -L nixos /dev/sda2",
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|               "mount LABEL=nixos /mnt",
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|           );
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|         '';
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|       fileSystems = rootFS;
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|       grubVersion = 1;
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|       grubDevice = "/dev/sda";
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|     };
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| 
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|   # Rebuild the CD configuration with a little modification.
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|   rebuildCD =
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|     { inherit iso;
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|       nodes = { };
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|       testScript =
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|         ''
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|           my $machine = createMachine({ cdrom => glob("${iso}/iso/*.iso"), qemuFlags => '-m 768' });
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|           $machine->start;
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| 
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|           # Enable sshd service.
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|           $machine->succeed(
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|             "sed -i 's,^}\$,systemd.services.sshd.wantedBy = pkgs.lib.mkOverride 0 [\"multi-user.target\"]; },' /etc/nixos/configuration.nix"
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|           );
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| 
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|           $machine->succeed("cat /etc/nixos/configuration.nix >&2");
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| 
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|           # Apply the new CD configuration.
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|           $machine->succeed("nixos-rebuild test");
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| 
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|           # Connect to it-self.
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|           $machine->waitForUnit("sshd");
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|           $machine->waitForOpenPort(22);
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| 
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|           $machine->shutdown;
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|         '';
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|     };
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| }
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