longer compares the current configuration to the previous
configuration, but instead compares the current Upstart state to the
intended state. Thus, if the switch script is interrupted, running
nixos-rebuild again will resume starting/stopping Upstart jobs where
the previous run left off.
We determine if an Upstart job has changed by having the pre-start
script of each Upstart job put a symlink to its .conf file in
/var/run/upstart-jobs. So if this symlink differs from the target
of /etc/init/<job>.conf, then the job has changed. This also
prevents multiple restarts of dependent jobs. E.g., if job B has
"start on started A" and "stop on stopping A", then restarting A
will cause B to be restarted, so B shouldn't B restarted a second
time.
We only start jobs that are not running if 1) they're tasks that
have been previously run (like mountall); or 2) they're jobs that
have a "start on" condition. This seems a reasonable heuristic.
svn path=/nixos/trunk/; revision=33222
starts the given job and waits until it's running; "stop_check"
checks that the current job hasn't been asked to stop.
svn path=/nixos/trunk/; revision=33214
monitor the life of postfix)
Adding an assert to upstart jobs, so those with preStop will always need an exec or
script, otherwise the preStop will not be run.
svn path=/nixos/trunk/; revision=22225
This ensures that they're gone by the time the shutdown job runs, so
it doesn't have to stop them itself.
* Don't respawn tasks, as it doesn't seem useful (if they fail they're
likely to fail again if they're restarted).
svn path=/nixos/trunk/; revision=22099
is "ready". This prevents ugly race conditions, e.g. HAL failing to
start because dbus hasn't finished starting yet.
* Support post-start scripts. These are executed after the job's main
process has started but before the job's "started" event is
emitted. For instance, the udev job uses this to perform "udevadm
trigger / settle" to create all devices. Previously this had to be
done in the pre-start script, so the daemon had to started in the
pre-start script as well.
svn path=/nixos/branches/upstart-0.6/; revision=18211
style of declaring Upstart jobs. While at it, converted them to the
current NixOS module style and improved some option descriptions.
Hopefully I didn't break too much :-)
svn path=/nixos/trunk/; revision=17761
Purpose: Allow overwriding of properties such as:
config.jobAttrs.sshd.startOn = "never";
thanks to Nicolas Pierron for reviewing and
extending nixpkgs to make this possible
I'll convert most of the jobs ASAP so please don't care
about the depreceateion much right now
svn path=/nixos/trunk/; revision=17650
jobs, e.g. (from the nscd job)
{ name = "nscd";
description = "Name Service Cache Daemon";
startOn = "startup";
stopOn = "shutdown";
environment = { LD_LIBRARY_PATH = nssModulesPath; };
preStart =
''
mkdir -m 0755 -p /var/run/nscd
mkdir -m 0755 -p /var/db/nscd
'';
exec = "${pkgs.glibc}/sbin/nscd -f ${./nscd.conf} -d 2> /dev/null";
};
The Upstart job is generated from this. The main goal is to provide
some abstraction from the Upstart syntax. For instance, this should
make it easier to upgrade to newer versions of Upstart, to switch to
an entirely different process management system (e.g. initng or
launchd), or to test a job independantly from Upstart. (However the
startOn and stopOn attributes are tied to Upstart's event model.)
svn path=/nixos/branches/modular-nixos/; revision=16376
empty now), do more of bashrc.sh declaratively, and moved nsswitch
generation to modules/config/nsswitch.nix.
svn path=/nixos/branches/modular-nixos/; revision=15754
