Commit graph

38 commits

Author SHA1 Message Date
Luca Bruno 2beb43174f nixos-rebuild: use reload-or-restart for dbus. Closes #5767
Now that dbus reload has been moved before restarting units,
the reload may fail if dbus has been stopped before.
The reload-or-restart will reload dbus if it's active,
otherwise start it.
2015-01-14 16:08:47 +01:00
Eelco Dolstra c812e45292 switch-to-configuration: Ignore slice units 2014-12-18 01:47:36 +01:00
Eelco Dolstra 88412c865d Fix ANSI escape in warning messages
Seems to have been broken by accident in 7d1ddae58e.
2014-12-15 16:19:35 +01:00
Rene Donner 8bd2f6bfc1 some typos 2014-11-14 13:05:55 +01:00
Luca Bruno 510fba95e8 nixos-rebuild: reload dbus before starting other units. Closes #4546 2014-11-08 19:40:28 +01:00
Eelco Dolstra 785ed2b528 Don't silently ignore errors from the activation script 2014-08-15 02:14:34 +02:00
Luca Bruno 66ddb1c322 Add system.replaceRuntimeDependencies to quickly replace system dependencies 2014-06-06 21:17:31 +02:00
Eelco Dolstra d4ccfe3f6b Don't create /media
It's obsolete - udisks2 uses /run/media/<username>.
2014-05-21 15:55:49 +02:00
Eelco Dolstra c06786759c /var/run -> /run 2014-05-09 00:52:02 +02:00
Eelco Dolstra bac68f9747 switch-to-configuration: Honour RefuseManualStop
This prevents spurious errors about systemd-tmpfiles-setup.service.

Backport: 14.04
2014-05-05 16:46:58 +02:00
Eelco Dolstra 56b4b841ae switch-to-configuration: Use old systemctl to stop units
Otherwise, when switching from systemd 203 to 212, you get errors like:

  Failed to stop remote-fs.target: Bad message
  Failed to stop systemd-udevd-control.socket: Bad message
  ...
2014-04-28 08:28:44 +02:00
Eelco Dolstra 37e6e08cde switch-to-configuration: Use systemctl's --no-legend flag 2014-04-25 17:42:09 +02:00
Shea Levy 7d1ddae58e nixos: evaluate assertions at toplevel, not at systemPackages
Fixes #2340
2014-04-22 14:09:02 -04:00
Shea Levy 2a4282c811 Revert "Merge branch 'dbus-switch-to-configuration'"
This seems to have combined badly with the systemd upgrade, we'll revert
for now and revisit after the 14.04 branch.

This reverts commit ad80532881, reversing
changes made to 1c5d3c7883.
2014-04-21 18:30:05 -04:00
Oliver Charles 42ae633445 Merge branch 'master' into dbus-switch-to-configuration
Conflicts:
	nixos/modules/system/activation/switch-to-configuration.pl
2014-04-20 19:17:05 +01:00
Eelco Dolstra 82535e0f8f switch-to-configuration: Check overrides.conf for X-* options 2014-04-19 14:28:33 +02:00
Eelco Dolstra b03a2f9e90 Set personality when running a 32-bit container on a 64-bit host 2014-04-19 13:14:51 +02:00
Eelco Dolstra 313c38d5f1 switch-to-configuration: Handle systemctl output change 2014-04-18 19:04:45 +02:00
Eelco Dolstra 179acfb664 Allow upstream systemd units to be extended
If you define a unit, and either systemd or a package in
systemd.packages already provides that unit, then we now generate a
file /etc/systemd/system/<unit>.d/overrides.conf. This makes it
possible to use upstream units, while allowing them to be customised
from the NixOS configuration. For instance, the module nix-daemon.nix
now uses the units provided by the Nix package. And all unit
definitions that duplicated upstream systemd units are finally gone.

This makes the baseUnit option unnecessary, so I've removed it.
2014-04-17 18:52:31 +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
Eelco Dolstra 511b86d22d Add an option to reload rather than restart changed units 2014-03-17 15:02:53 +01:00
Eelco Dolstra f9e2af1e8b switch-to-configuration: Don't require /etc/NIXOS
Check /etc/os-release if /etc/NIXOS doesn't exist.
2014-03-17 14:16:10 +01:00
Eelco Dolstra f13bd41384 switch-to-configuration: Restart sockets.target 2014-03-17 14:10:48 +01:00
Eelco Dolstra 09c14cd8aa switch-to-configuration: Don't try to start masked units 2014-03-12 18:52:11 +01:00
Oliver Charles 0d18d39e98 switch-to-configuration.pl: Handle successful auto-restarts
switch-to-configuration.pl is currently hard-coded to assume that if a
unit is in the "auto-restart" state that something has gone wrong, but
this is not strictly true. For example, I run offlineimap as a oneshot
service restarting itself every minute (on success). NixOS currently
thinks that offlineimap has failed to start as it enters the
auto-restart state, because it doesn't consider why the unit failed.

This commit changes switch-to-configuration.pl to inspect the full
status of a unit in auto-restart state, and now only considers it failed
if the ExecMainStatus is non-zero.
2014-02-02 15:56:22 +01:00
Oliver Charles 41775167ac switch-to-configuration.pl: Interact via DBus
Currently switch-to-configuration.pl uses system() calls to interact
with DBus. This can be error prone, especially when we are parsing
output that could change. In this commit, almost all calls to the
systemctl binary have been replaced with equivalent operations via DBus.
2014-02-02 14:41:26 +00:00
Eelco Dolstra 09dd7f9afc Fix passing of kernel parameters
Broken in 9ee30cd9b5.  Reported by Arvin
Moezzi.
2013-12-02 11:56:58 -05:00
Eelco Dolstra 9ee30cd9b5 Add support for lightweight NixOS containers
You can now say:

  systemd.containers.foo.config =
    { services.openssh.enable = true;
      services.openssh.ports = [ 2022 ];
      users.extraUsers.root.openssh.authorizedKeys.keys = [ "ssh-dss ..." ];
    };

which defines a NixOS instance with the given configuration running
inside a lightweight container.

You can also manage the configuration of the container independently
from the host:

  systemd.containers.foo.path = "/nix/var/nix/profiles/containers/foo";

where "path" is a NixOS system profile.  It can be created/updated by
doing:

  $ nix-env --set -p /nix/var/nix/profiles/containers/foo \
      -f '<nixos>' -A system -I nixos-config=foo.nix

The container configuration (foo.nix) should define

  boot.isContainer = true;

to optimise away the building of a kernel and initrd.  This is done
automatically when using the "config" route.

On the host, a lightweight container appears as the service
"container-<name>.service".  The container is like a regular NixOS
(virtual) machine, except that it doesn't have its own kernel.  It has
its own root file system (by default /var/lib/containers/<name>), but
shares the Nix store of the host (as a read-only bind mount).  It also
has access to the network devices of the host.

Currently, if the configuration of the container changes, running
"nixos-rebuild switch" on the host will cause the container to be
rebooted.  In the future we may want to send some message to the
container so that it can activate the new container configuration
without rebooting.

Containers are not perfectly isolated yet.  In particular, the host's
/sys/fs/cgroup is mounted (writable!) in the guest.
2013-11-27 17:14:10 +01:00
Eelco Dolstra 785eaf2cea Add some primops to lib 2013-11-12 13:48:30 +01:00
Eelco Dolstra c1159edc65 Remove remaining references to Upstart 2013-10-31 13:26:06 +01:00
Eelco Dolstra 408b8b5725 Add lots of missing option types 2013-10-30 18:47:43 +01:00
Eelco Dolstra 862e3dd977 Substitute "types.uniq types.string" -> "types.str" 2013-10-30 14:57:42 +01:00
Eelco Dolstra 30a36f9a80 Remove remaining uses of mkOverrideTemplate 2013-10-28 22:45:58 +01:00
Eelco Dolstra d5047faede Remove uses of the "merge" option attribute
It's redundant because you can (and should) specify an option type, or
an apply function.
2013-10-28 22:45:56 +01:00
Eelco Dolstra 0e333688ce Big cleanup of the NixOS module system
The major changes are:

* The evaluation is now driven by the declared options.  In
  particular, this fixes the long-standing problem with lack of
  laziness of disabled option definitions.  Thus, a configuration like

    config = mkIf false {
      environment.systemPackages = throw "bla";
    };

  will now evaluate without throwing an error.  This also improves
  performance since we're not evaluating unused option definitions.

* The implementation of properties is greatly simplified.

* There is a new type constructor "submodule" that replaces
  "optionSet".  Unlike "optionSet", "submodule" gets its option
  declarations as an argument, making it more like "listOf" and other
  type constructors.  A typical use is:

    foo = mkOption {
      type = type.attrsOf (type.submodule (
        { config, ... }:
        { bar = mkOption { ... };
          xyzzy = mkOption { ... };
        }));
    };

  Existing uses of "optionSet" are automatically mapped to
  "submodule".

* Modules are now checked for unsupported attributes: you get an error
  if a module contains an attribute other than "config", "options" or
  "imports".

* The new implementation is faster and uses much less memory.
2013-10-28 22:45:55 +01:00
Eelco Dolstra 29014a47fb Allow options to be marked as "internal"
This means they're not for end users.  Currently they're filtered from
the manual, but we could include them in a separate section.
2013-10-23 20:08:21 +02:00
Eelco Dolstra e29b51bfb1 Improve option description 2013-10-23 20:08:21 +02:00
Eelco Dolstra 5c1f8cbc70 Move all of NixOS to nixos/ in preparation of the repository merge 2013-10-10 13:28:20 +02:00