Commit graph

16 commits

Author SHA1 Message Date
Eelco Dolstra 6f6e2c430f test-instrumentation.nix: Only clear $PAGER in the backdoor shell 2016-02-23 11:56:09 +01:00
Eelco Dolstra 6d02d7e740 NixOS tests: Increase hung_task_timeout_secs
This hopefully fixes intermittent test failures like

  http://hydra.nixos.org/build/29962437

  router# [  240.128835] INFO: task mke2fs:99 blocked for more than 120 seconds.
  router# [  240.130135]       Not tainted 3.18.25 #1-NixOS
  router# [  240.131110] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

assuming that these are caused by high load on the host.
2016-01-04 16:53:42 +01:00
aszlig 00934bb908
nixos/tests: Revert setting min_free_kbytes
This reverts commit 02b568414d.

With a5bc11f and 6353f58 in place, we really don't need this anymore.

After running about 500 VM tests on my Hydra, it still didn't improve
very much.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-12-14 17:40:28 +01:00
aszlig 02b568414d
nixos/test-instrumentation: Set vm.min_free_kbytes
We hit page allocation failures a lot at random for VM tests, in case of
my own Hydra when it comes to the installer tests. The reason for this
is that once the memory of the VM gets heavily fragmented the kernel is
unable to allocate new pages.

Setting vm.min_free_kbytes to 16MB forces the kernel to keep a minimum
of 16 MB free.

I've done some testing accross repeated runs of the installer tests with
and without vm.min_free_kbytes set. So accross 30 test runs for each
settings, all of the tests with the option being set passed while 14
tests without that sysctl option triggered page allocation failures.

Sure, running 30 tests is not a guarantee that 16MB is enough, but we'll
see how it turns out in the long run across all VM tests.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-12-13 03:18:10 +01:00
Eelco Dolstra 24ce7ff3ea test-instrumentation.nix: Prevent calling a pager 2015-01-15 14:39:29 +01:00
aszlig 8e516de3e7
nixos: Fix priorities of initialHashedPassword.
Regression introduced in f496c3cbe4.

Previously when we used security.initialRootPassword, the default
priority for this option was 1001, because it was a default value set by
the option itself.

With the mentioned commit, it is no longer an option default but a
mkDefault, which is priority 1000.

I'm setting this to 150 now, as test-instrumentation.nix is using this
for overriding other options and because I think it still makes it
possible to simple-override it, because if no priority is given, we get
priority 100.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2014-11-04 05:19:07 +01:00
Eelco Dolstra f496c3cbe4 Obsolete security.initialPassword
You can now set users.extraUsers.root.initialHashedPassword instead.
2014-11-03 12:36:56 +01:00
Eelco Dolstra d5b5d763cd Fix evaluation 2014-08-06 19:44:13 +02:00
Eelco Dolstra 2b9ea7fd90 test-instrumentation.nix: Set an empty root password
This makes it easier to log in during interactive sessions.
2014-08-06 14:15:23 +02:00
Eelco Dolstra eab25b104a test-instrumentation.nix: Improve logging
In particular, don't clobber the serial console with duplicate output
from systemd and the journal, and increase the log level.
2014-08-06 14:15:18 +02:00
Shea Levy b3cfb9084b Get all lib functions from lib, not pkgs.lib, in modules 2014-07-02 12:28:18 -04:00
Eelco Dolstra 2fbb9aba43 Fix the installer test
http://hydra.nixos.org/build/10419676
2014-04-20 01:56:11 +02:00
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00
Shea Levy d18bc25b95 Rename linuxManualConfig to buildLinux
Signed-off-by: Shea Levy <shea@shealevy.com>
2014-01-21 20:05:55 -05:00
Eelco Dolstra 2b0aea1793 Allow running NixOS services outside of systemd
The attribute ‘config.systemd.services.<service-name>.runner’
generates a script that runs the service outside of systemd.  This is
useful for testing, and also allows NixOS services to be used outside
of NixOS.  For instance, given a configuration file foo.nix:

  { config, pkgs, ... }:

  { services.postgresql.enable = true;
    services.postgresql.package = pkgs.postgresql92;
    services.postgresql.dataDir = "/tmp/postgres";
  }

you can build and run PostgreSQL as follows:

  $ nix-build -A config.systemd.services.postgresql.runner -I nixos-config=./foo.nix
  $ ./result

This will run the service's ExecStartPre, ExecStart, ExecStartPost and
ExecStopPost commands in an appropriate environment.  It doesn't work
well yet for "forking" services, since it can't track the main
process.  It also doesn't work for services that assume they're always
executed by root.
2013-11-18 18:04:17 +01:00
Eelco Dolstra 5c1f8cbc70 Move all of NixOS to nixos/ in preparation of the repository merge 2013-10-10 13:28:20 +02:00