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* In the jobs attribute, support a more high-level way of specifying

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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
This commit is contained in:
Eelco Dolstra 2009-07-15 15:24:11 +00:00
parent 0e3bef4195
commit c45cf3a28e
2 changed files with 102 additions and 33 deletions
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35
modules/services/system/nscd.nix
View file

@ -17,31 +17,24 @@ in
description = "Name service cache daemon user";
};
jobs = singleton {
name = "nscd";
jobs = singleton
{ name = "nscd";
description = "Name Service Cache Daemon";
startOn = "startup";
stopOn = "shutdown";
environment = { LD_LIBRARY_PATH = nssModulesPath; };
job = ''
description \"Name Service Cache Daemon\"
start on startup
stop on shutdown
env LD_LIBRARY_PATH=${nssModulesPath}
start script
preStart =
''
mkdir -m 0755 -p /var/run/nscd
mkdir -m 0755 -p /var/db/nscd
'';
rm -f /var/db/nscd/* # for testing
end script
# !!! -d turns on debug info which probably makes nscd slower
# 2>/dev/null is to make it shut up
respawn ${pkgs.glibc}/sbin/nscd -f ${./nscd.conf} -d 2> /dev/null
'';
};
exec = "${pkgs.glibc}/sbin/nscd -f ${./nscd.conf} -d 2> /dev/null";
};
};
}