commit 7d5b333dcdf12dc51b7df052ca0fe1969d91e7d4 · pyrox.dev/nixpkgs

+63 -11

nixos/modules/virtualisation/incus.nix

···

       105
       105
        
             path = "${pkgs.OVMFFull.fd}/FV/${ovmf-prefix}_VARS.fd";

     

       106
       106
        
           }

     

       107
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         ];

     

       108
       108
       +
       

     

       109
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       +
         environment = lib.mkMerge [

     

       110
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       +
           {

     

       111
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       +
             INCUS_LXC_TEMPLATE_CONFIG = "${pkgs.lxcfs}/share/lxc/config";

     

       112
       112
       +
             INCUS_OVMF_PATH = ovmf;

     

       113
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       +
             INCUS_USBIDS_PATH = "${pkgs.hwdata}/share/hwdata/usb.ids";

     

       114
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       +
             PATH = lib.mkForce serverBinPath;

     

       115
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       +
           }

     

       116
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       +
           (lib.mkIf (cfg.ui.enable) { "INCUS_UI" = cfg.ui.package; })

     

       117
       117
       +
         ];

     

       118
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       +
       

     

       119
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       +
         incus-startup = pkgs.writeShellScript "incus-startup" ''

     

       120
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       +
           case "$1" in

     

       121
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       +
               start)

     

       122
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       +
                 systemctl is-active incus.service -q && exit 0

     

       123
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       +
                 exec incusd activateifneeded

     

       124
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       +
               ;;

     

       125
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       +
       

     

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       +
               stop)

     

       127
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       +
                 systemctl is-active incus.service -q || exit 0

     

       128
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       +
                 exec incusd shutdown

     

       129
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       +
               ;;

     

       130
       130
       +
       

     

       131
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       +
               *)

     

       132
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       +
                 echo "unknown argument \`$1'" >&2

     

       133
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       +
                 exit 1

     

       134
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       +
               ;;

     

       135
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       +
           esac

     

       136
       136
       +
       

     

       137
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       +
           exit 0

     

       138
       138
       +
         '';

     

       108
       139
        
       in

     

       109
       140
        
       {

     

       110
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         meta = {

     
···

       135
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               default = cfg.package.client;

     

       136
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               defaultText = lib.literalExpression "config.virtualisation.incus.package.client";

     

       137
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               description = "The incus client package to use. This package is added to PATH.";

     

       169
       169
       +
             };

     

       170
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       +
       

     

       171
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       +
             softDaemonRestart = lib.mkOption {

     

       172
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       +
               type = lib.types.bool;

     

       173
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       +
               default = true;

     

       174
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       +
               description = ''

     

       175
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       +
                 Allow for incus.service to be stopped without affecting running instances.

     

       176
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       +
               '';

     

       138
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             };

     

       139
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       140
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             preseed = lib.mkOption {

     
···

       282
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           systemd.services.incus = {

     

       283
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             description = "Incus Container and Virtual Machine Management Daemon";

     

       284
       323
        
       

     

       324
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       +
             inherit environment;

     

       325
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       +
       

     

       285
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             wantedBy = lib.mkIf (!cfg.socketActivation) [ "multi-user.target" ];

     

       286
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             after = [

     

       287
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               "network-online.target"

     
···

       296
       337
        
       

     

       297
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             wants = [ "network-online.target" ];

     

       298
       339
        
       

     

       299
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       -
             environment = lib.mkMerge [

     

       300
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       -
               {

     

       301
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       -
                 INCUS_LXC_TEMPLATE_CONFIG = "${pkgs.lxcfs}/share/lxc/config";

     

       302
       302
       -
                 INCUS_OVMF_PATH = ovmf;

     

       303
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       -
                 INCUS_USBIDS_PATH = "${pkgs.hwdata}/share/hwdata/usb.ids";

     

       304
       304
       -
                 PATH = lib.mkForce serverBinPath;

     

       305
       305
       -
               }

     

       306
       306
       -
               (lib.mkIf (cfg.ui.enable) { "INCUS_UI" = cfg.ui.package; })

     

       307
       307
       -
             ];

     

       308
       308
       -
       

     

       309
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             serviceConfig = {

     

       310
       341
        
               ExecStart = "${cfg.package}/bin/incusd --group incus-admin";

     

       311
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               ExecStartPost = "${cfg.package}/bin/incusd waitready --timeout=${cfg.startTimeout}";

     

       312
       312
       -
               ExecStop = "${cfg.package}/bin/incus admin shutdown";

     

       343
       343
       +
               ExecStop = lib.optionalString (!cfg.softDaemonRestart) "${cfg.package}/bin/incus admin shutdown";

     

       313
       344
        
       

     

       314
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               KillMode = "process"; # when stopping, leave the containers alone

     

       315
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               Delegate = "yes";

     
···

       321
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               Restart = "on-failure";

     

       322
       353
        
               TimeoutStartSec = "${cfg.startTimeout}s";

     

       323
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               TimeoutStopSec = "30s";

     

       355
       355
       +
             };

     

       356
       356
       +
           };

     

       357
       357
       +
       

     

       358
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       +
           systemd.services.incus-startup = lib.mkIf cfg.softDaemonRestart {

     

       359
       359
       +
             description = "Incus Instances Startup/Shutdown";

     

       360
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       +
       

     

       361
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       +
             inherit environment;

     

       362
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       +
       

     

       363
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       +
             after = [

     

       364
       364
       +
               "incus.service"

     

       365
       365
       +
               "incus.socket"

     

       366
       366
       +
             ];

     

       367
       367
       +
             requires = [ "incus.socket" ];

     

       368
       368
       +
       

     

       369
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       +
             serviceConfig = {

     

       370
       370
       +
               ExecStart = "${incus-startup} start";

     

       371
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       +
               ExecStop = "${incus-startup} stop";

     

       372
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       +
               RemainAfterExit = true;

     

       373
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       +
               TimeoutStartSec = "600s";

     

       374
       374
       +
               TimeoutStopSec = "600s";

     

       375
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       +
               Type = "oneshot";

     

       324
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             };

     

       325
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           };

     

       326
       378

+45 -36

nixos/tests/incus/container.nix

···

       70
       70
        
               machine.succeed("incus exec container mount | grep 'lxcfs on /proc/cpuinfo type fuse.lxcfs'")

     

       71
       71
        
               machine.succeed("incus exec container mount | grep 'lxcfs on /proc/meminfo type fuse.lxcfs'")

     

       72
       72
        
       

     

       73
       73
       -
           with subtest("Container CPU limits can be managed"):

     

       74
       74
       -
               set_container("limits.cpu 1")

     

       75
       75
       -
               cpuinfo = machine.succeed("incus exec container grep -- -c ^processor /proc/cpuinfo").strip()

     

       76
       76
       -
               assert cpuinfo == "1", f"Wrong number of CPUs reported from /proc/cpuinfo, want: 1, got: {cpuinfo}"

     

       73
       73
       +
           with subtest("resource limits"):

     

       74
       74
       +
               with subtest("Container CPU limits can be managed"):

     

       75
       75
       +
                   set_container("limits.cpu 1")

     

       76
       76
       +
                   cpuinfo = machine.succeed("incus exec container grep -- -c ^processor /proc/cpuinfo").strip()

     

       77
       77
       +
                   assert cpuinfo == "1", f"Wrong number of CPUs reported from /proc/cpuinfo, want: 1, got: {cpuinfo}"

     

       78
       78
       +
       

     

       79
       79
       +
                   set_container("limits.cpu 2")

     

       80
       80
       +
                   cpuinfo = machine.succeed("incus exec container grep -- -c ^processor /proc/cpuinfo").strip()

     

       81
       81
       +
                   assert cpuinfo == "2", f"Wrong number of CPUs reported from /proc/cpuinfo, want: 2, got: {cpuinfo}"

     

       77
       82
        
       

     

       78
       78
       -
               set_container("limits.cpu 2")

     

       79
       79
       -
               cpuinfo = machine.succeed("incus exec container grep -- -c ^processor /proc/cpuinfo").strip()

     

       80
       80
       -
               assert cpuinfo == "2", f"Wrong number of CPUs reported from /proc/cpuinfo, want: 2, got: {cpuinfo}"

     

       83
       83
       +
               with subtest("Container memory limits can be managed"):

     

       84
       84
       +
                   set_container("limits.memory 64MB")

     

       85
       85
       +
                   meminfo = machine.succeed("incus exec container grep -- MemTotal /proc/meminfo").strip()

     

       86
       86
       +
                   meminfo_bytes = " ".join(meminfo.split(' ')[-2:])

     

       87
       87
       +
                   assert meminfo_bytes == "62500 kB", f"Wrong amount of memory reported from /proc/meminfo, want: '62500 kB', got: '{meminfo_bytes}'"

     

       81
       88
        
       

     

       82
       82
       -
           with subtest("Container memory limits can be managed"):

     

       83
       83
       -
               set_container("limits.memory 64MB")

     

       84
       84
       -
               meminfo = machine.succeed("incus exec container grep -- MemTotal /proc/meminfo").strip()

     

       85
       85
       -
               meminfo_bytes = " ".join(meminfo.split(' ')[-2:])

     

       86
       86
       -
               assert meminfo_bytes == "62500 kB", f"Wrong amount of memory reported from /proc/meminfo, want: '62500 kB', got: '{meminfo_bytes}'"

     

       89
       89
       +
                   set_container("limits.memory 128MB")

     

       90
       90
       +
                   meminfo = machine.succeed("incus exec container grep -- MemTotal /proc/meminfo").strip()

     

       91
       91
       +
                   meminfo_bytes = " ".join(meminfo.split(' ')[-2:])

     

       92
       92
       +
                   assert meminfo_bytes == "125000 kB", f"Wrong amount of memory reported from /proc/meminfo, want: '125000 kB', got: '{meminfo_bytes}'"

     

       87
       93
        
       

     

       88
       88
       -
               set_container("limits.memory 128MB")

     

       89
       89
       -
               meminfo = machine.succeed("incus exec container grep -- MemTotal /proc/meminfo").strip()

     

       90
       90
       -
               meminfo_bytes = " ".join(meminfo.split(' ')[-2:])

     

       91
       91
       -
               assert meminfo_bytes == "125000 kB", f"Wrong amount of memory reported from /proc/meminfo, want: '125000 kB', got: '{meminfo_bytes}'"

     

       94
       94
       +
           with subtest("lxc-generator"):

     

       95
       95
       +
               with subtest("lxc-container generator configures plain container"):

     

       96
       96
       +
                   # reuse the existing container to save some time

     

       97
       97
       +
                   machine.succeed("incus exec container test -- -e /run/systemd/system/service.d/zzz-lxc-service.conf")

     

       98
       98
       +
                   check_sysctl("container")

     

       92
       99
        
       

     

       93
       93
       -
           with subtest("lxc-container generator configures plain container"):

     

       94
       94
       -
               # reuse the existing container to save some time

     

       95
       95
       -
               machine.succeed("incus exec container test -- -e /run/systemd/system/service.d/zzz-lxc-service.conf")

     

       96
       96
       -
               check_sysctl("container")

     

       100
       100
       +
               with subtest("lxc-container generator configures nested container"):

     

       101
       101
       +
                   machine.execute("incus delete --force container")

     

       102
       102
       +
                   machine.succeed("incus launch nixos container --config security.nesting=true")

     

       103
       103
       +
                   with machine.nested("Waiting for instance to start and be usable"):

     

       104
       104
       +
                     retry(instance_is_up)

     

       97
       105
        
       

     

       98
       98
       -
           with subtest("lxc-container generator configures nested container"):

     

       99
       99
       -
               machine.execute("incus delete --force container")

     

       100
       100
       -
               machine.succeed("incus launch nixos container --config security.nesting=true")

     

       101
       101
       -
               with machine.nested("Waiting for instance to start and be usable"):

     

       102
       102
       -
                 retry(instance_is_up)

     

       106
       106
       +
                   machine.fail("incus exec container test -- -e /run/systemd/system/service.d/zzz-lxc-service.conf")

     

       107
       107
       +
                   target = machine.succeed("incus exec container readlink -- -f /run/systemd/system/systemd-binfmt.service").strip()

     

       108
       108
       +
                   assert target == "/dev/null", "lxc generator did not correctly mask /run/systemd/system/systemd-binfmt.service"

     

       103
       109
        
       

     

       104
       104
       -
               machine.fail("incus exec container test -- -e /run/systemd/system/service.d/zzz-lxc-service.conf")

     

       105
       105
       -
               target = machine.succeed("incus exec container readlink -- -f /run/systemd/system/systemd-binfmt.service").strip()

     

       106
       106
       -
               assert target == "/dev/null", "lxc generator did not correctly mask /run/systemd/system/systemd-binfmt.service"

     

       110
       110
       +
                   check_sysctl("container")

     

       107
       111
        
       

     

       108
       108
       -
               check_sysctl("container")

     

       112
       112
       +
               with subtest("lxc-container generator configures privileged container"):

     

       113
       113
       +
                   machine.execute("incus delete --force container")

     

       114
       114
       +
                   machine.succeed("incus launch nixos container --config security.privileged=true")

     

       115
       115
       +
                   with machine.nested("Waiting for instance to start and be usable"):

     

       116
       116
       +
                     retry(instance_is_up)

     

       109
       117
        
       

     

       110
       110
       -
           with subtest("lxc-container generator configures privileged container"):

     

       111
       111
       -
               machine.execute("incus delete --force container")

     

       112
       112
       -
               machine.succeed("incus launch nixos container --config security.privileged=true")

     

       113
       113
       -
               with machine.nested("Waiting for instance to start and be usable"):

     

       114
       114
       -
                 retry(instance_is_up)

     

       118
       118
       +
                   machine.succeed("incus exec container test -- -e /run/systemd/system/service.d/zzz-lxc-service.conf")

     

       115
       119
        
       

     

       116
       116
       -
               machine.succeed("incus exec container test -- -e /run/systemd/system/service.d/zzz-lxc-service.conf")

     

       120
       120
       +
                   check_sysctl("container")

     

       117
       121
        
       

     

       118
       118
       -
               check_sysctl("container")

     

       122
       122
       +
           with subtest("softDaemonRestart"):

     

       123
       123
       +
               with subtest("Instance remains running when softDaemonRestart is enabled and services is stopped"):

     

       124
       124
       +
                   pid = machine.succeed("incus info container | grep 'PID'").split(":")[1].strip()

     

       125
       125
       +
                   machine.succeed(f"ps {pid}")

     

       126
       126
       +
                   machine.succeed("systemctl stop incus")

     

       127
       127
       +
                   machine.succeed(f"ps {pid}")

     

       119
       128
        
         '';

     

       120
       129
        
       })

+1 -1

nixos/tests/incus/default.nix

···

       16
       16
        
             boot.initrd.systemd.enable = true;

     

       17
       17
        
           };

     

       18
       18
        
         };

     

       19
       19
       +
         incusd-options = import ./incusd-options.nix { inherit system pkgs; };

     

       19
       20
        
         lxd-to-incus = import ./lxd-to-incus.nix { inherit system pkgs; };

     

       20
       21
        
         openvswitch = import ./openvswitch.nix { inherit system pkgs; };

     

       21
       21
       -
         preseed = import ./preseed.nix { inherit system pkgs; };

     

       22
       22
        
         socket-activated = import ./socket-activated.nix { inherit system pkgs; };

     

       23
       23
        
         storage = import ./storage.nix { inherit system pkgs; };

     

       24
       24
        
         ui = import ./ui.nix { inherit system pkgs; };

+104

nixos/tests/incus/incusd-options.nix

···

       1
       1
       +
       # this is a set of tests for non-default options. typically the default options

     

       2
       2
       +
       # will be handled by the other tests

     

       3
       3
       +
       import ../make-test-python.nix (

     

       4
       4
       +
         { pkgs, lib, ... }:

     

       5
       5
       +
       

     

       6
       6
       +
         let

     

       7
       7
       +
           releases = import ../../release.nix {

     

       8
       8
       +
             configuration = {

     

       9
       9
       +
               # Building documentation makes the test unnecessarily take a longer time:

     

       10
       10
       +
               documentation.enable = lib.mkForce false;

     

       11
       11
       +
             };

     

       12
       12
       +
           };

     

       13
       13
       +
       

     

       14
       14
       +
           container-image-metadata = releases.lxdContainerMeta.${pkgs.stdenv.hostPlatform.system};

     

       15
       15
       +
           container-image-rootfs = releases.lxdContainerImage.${pkgs.stdenv.hostPlatform.system};

     

       16
       16
       +
         in

     

       17
       17
       +
         {

     

       18
       18
       +
           name = "incusd-options";

     

       19
       19
       +
       

     

       20
       20
       +
           meta = {

     

       21
       21
       +
             maintainers = lib.teams.lxc.members;

     

       22
       22
       +
           };

     

       23
       23
       +
       

     

       24
       24
       +
           nodes.machine = {

     

       25
       25
       +
             virtualisation = {

     

       26
       26
       +
               cores = 2;

     

       27
       27
       +
               memorySize = 1024;

     

       28
       28
       +
               diskSize = 4096;

     

       29
       29
       +
       

     

       30
       30
       +
               incus = {

     

       31
       31
       +
                 enable = true;

     

       32
       32
       +
                 softDaemonRestart = false;

     

       33
       33
       +
       

     

       34
       34
       +
                 preseed = {

     

       35
       35
       +
                   networks = [

     

       36
       36
       +
                     {

     

       37
       37
       +
                       name = "nixostestbr0";

     

       38
       38
       +
                       type = "bridge";

     

       39
       39
       +
                       config = {

     

       40
       40
       +
                         "ipv4.address" = "10.0.100.1/24";

     

       41
       41
       +
                         "ipv4.nat" = "true";

     

       42
       42
       +
                       };

     

       43
       43
       +
                     }

     

       44
       44
       +
                   ];

     

       45
       45
       +
                   profiles = [

     

       46
       46
       +
                     {

     

       47
       47
       +
                       name = "default";

     

       48
       48
       +
                       devices = {

     

       49
       49
       +
                         eth0 = {

     

       50
       50
       +
                           name = "eth0";

     

       51
       51
       +
                           network = "nixostestbr0";

     

       52
       52
       +
                           type = "nic";

     

       53
       53
       +
                         };

     

       54
       54
       +
                         root = {

     

       55
       55
       +
                           path = "/";

     

       56
       56
       +
                           pool = "nixostest_pool";

     

       57
       57
       +
                           size = "35GiB";

     

       58
       58
       +
                           type = "disk";

     

       59
       59
       +
                         };

     

       60
       60
       +
                       };

     

       61
       61
       +
                     }

     

       62
       62
       +
                   ];

     

       63
       63
       +
                   storage_pools = [

     

       64
       64
       +
                     {

     

       65
       65
       +
                       name = "nixostest_pool";

     

       66
       66
       +
                       driver = "dir";

     

       67
       67
       +
                     }

     

       68
       68
       +
                   ];

     

       69
       69
       +
                 };

     

       70
       70
       +
               };

     

       71
       71
       +
             };

     

       72
       72
       +
             networking.nftables.enable = true;

     

       73
       73
       +
           };

     

       74
       74
       +
       

     

       75
       75
       +
           testScript = ''

     

       76
       76
       +
             def instance_is_up(_) -> bool:

     

       77
       77
       +
                 status, _ = machine.execute("incus exec container --disable-stdin --force-interactive /run/current-system/sw/bin/systemctl -- is-system-running")

     

       78
       78
       +
                 return status == 0

     

       79
       79
       +
       

     

       80
       80
       +
             machine.wait_for_unit("incus.service")

     

       81
       81
       +
             machine.wait_for_unit("incus-preseed.service")

     

       82
       82
       +
       

     

       83
       83
       +
             with subtest("Container image can be imported"):

     

       84
       84
       +
                 machine.succeed("incus image import ${container-image-metadata}/*/*.tar.xz ${container-image-rootfs}/*/*.tar.xz --alias nixos")

     

       85
       85
       +
       

     

       86
       86
       +
             with subtest("Container can be launched and managed"):

     

       87
       87
       +
                 machine.succeed("incus launch nixos container")

     

       88
       88
       +
                 with machine.nested("Waiting for instance to start and be usable"):

     

       89
       89
       +
                   retry(instance_is_up)

     

       90
       90
       +
                 machine.succeed("echo true | incus exec container /run/current-system/sw/bin/bash -")

     

       91
       91
       +
       

     

       92
       92
       +
             with subtest("Verify preseed resources created"):

     

       93
       93
       +
                 machine.succeed("incus profile show default")

     

       94
       94
       +
                 machine.succeed("incus network info nixostestbr0")

     

       95
       95
       +
                 machine.succeed("incus storage show nixostest_pool")

     

       96
       96
       +
       

     

       97
       97
       +
             with subtest("Instance is stopped when softDaemonRestart is disabled and services is stopped"):

     

       98
       98
       +
                 pid = machine.succeed("incus info container | grep 'PID'").split(":")[1].strip()

     

       99
       99
       +
                 machine.succeed(f"ps {pid}")

     

       100
       100
       +
                 machine.succeed("systemctl stop incus")

     

       101
       101
       +
                 machine.fail(f"ps {pid}")

     

       102
       102
       +
           '';

     

       103
       103
       +
         }

     

       104
       104
       +
       )

-63

nixos/tests/incus/preseed.nix

···

       1
       1
       -
       import ../make-test-python.nix ({ pkgs, lib, ... } :

     

       2
       2
       -
       

     

       3
       3
       -
       {

     

       4
       4
       -
         name = "incus-preseed";

     

       5
       5
       -
       

     

       6
       6
       -
         meta = {

     

       7
       7
       -
           maintainers = lib.teams.lxc.members;

     

       8
       8
       -
         };

     

       9
       9
       -
       

     

       10
       10
       -
         nodes.machine = { lib, ... }: {

     

       11
       11
       -
           virtualisation = {

     

       12
       12
       -
             incus.enable = true;

     

       13
       13
       -
       

     

       14
       14
       -
             incus.preseed = {

     

       15
       15
       -
               networks = [

     

       16
       16
       -
                 {

     

       17
       17
       -
                   name = "nixostestbr0";

     

       18
       18
       -
                   type = "bridge";

     

       19
       19
       -
                   config = {

     

       20
       20
       -
                     "ipv4.address" = "10.0.100.1/24";

     

       21
       21
       -
                     "ipv4.nat" = "true";

     

       22
       22
       -
                   };

     

       23
       23
       -
                 }

     

       24
       24
       -
               ];

     

       25
       25
       -
               profiles = [

     

       26
       26
       -
                 {

     

       27
       27
       -
                   name = "nixostest_default";

     

       28
       28
       -
                   devices = {

     

       29
       29
       -
                     eth0 = {

     

       30
       30
       -
                       name = "eth0";

     

       31
       31
       -
                       network = "nixostestbr0";

     

       32
       32
       -
                       type = "nic";

     

       33
       33
       -
                     };

     

       34
       34
       -
                     root = {

     

       35
       35
       -
                       path = "/";

     

       36
       36
       -
                       pool = "default";

     

       37
       37
       -
                       size = "35GiB";

     

       38
       38
       -
                       type = "disk";

     

       39
       39
       -
                     };

     

       40
       40
       -
                   };

     

       41
       41
       -
                 }

     

       42
       42
       -
               ];

     

       43
       43
       -
               storage_pools = [

     

       44
       44
       -
                 {

     

       45
       45
       -
                   name = "nixostest_pool";

     

       46
       46
       -
                   driver = "dir";

     

       47
       47
       -
                 }

     

       48
       48
       -
               ];

     

       49
       49
       -
             };

     

       50
       50
       -
           };

     

       51
       51
       -
           networking.nftables.enable = true;

     

       52
       52
       -
         };

     

       53
       53
       -
       

     

       54
       54
       -
         testScript = ''

     

       55
       55
       -
           machine.wait_for_unit("incus.service")

     

       56
       56
       -
           machine.wait_for_unit("incus-preseed.service")

     

       57
       57
       -
       

     

       58
       58
       -
           with subtest("Verify preseed resources created"):

     

       59
       59
       -
             machine.succeed("incus profile show nixostest_default")

     

       60
       60
       -
             machine.succeed("incus network info nixostestbr0")

     

       61
       61
       -
             machine.succeed("incus storage show nixostest_pool")

     

       62
       62
       -
         '';

     

       63
       63
       -
       })

nixos/tests/incus/virtual-machine.nix

···

       75
       75
        
               machine.succeed("incus config set ${instance-name} limits.cpu=2")

     

       76
       76
        
               count = int(machine.succeed("incus exec ${instance-name} -- nproc").strip())

     

       77
       77
        
               assert count == 2, f"Wrong number of CPUs reported, want: 2, got: {count}"

     

       78
       78
       +
       

     

       79
       79
       +
           with subtest("Instance remains running when softDaemonRestart is enabled and services is stopped"):

     

       80
       80
       +
               pid = machine.succeed("incus info ${instance-name} | grep 'PID'").split(":")[1].strip()

     

       81
       81
       +
               machine.succeed(f"ps {pid}")

     

       82
       82
       +
               machine.succeed("systemctl stop incus")

     

       83
       83
       +
               machine.succeed(f"ps {pid}")

     

       78
       84
        
         '';

     

       79
       85
        
       })