nixpkgs/tests/nfs.nix
Eelco Dolstra a395e46192 * Fix the NFS Upstart dependencies. Mountd is now started before
nfsd, as suggested by the nfs-utils README.

  Also, rather than relying on Upstart events (which have all sorts of
  problems, especially if you have jobs that have multiple
  dependencies), we know just let jobs start their on prerequisites.
  That is, nfsd starts mountd in its preStart script; mountd starts
  statd; statd starts portmap.  Likewise, mountall starts statd to
  ensure that it can mount NFS filesystems.  This means that doing
  something like "start nfsd" from the command line will Do The Right
  Thing and start the dependencies of nfsd.

svn path=/nixos/trunk/; revision=33172
2012-03-16 20:10:14 +00:00

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{ pkgs, ... }:
let
client =
{ config, pkgs, ... }:
{ fileSystems = pkgs.lib.mkOverride 50
[ { mountPoint = "/data";
device = "server:/data";
fsType = "nfs";
options = "bootwait,vers=3";
}
];
};
in
{
nodes =
{ client1 = client;
client2 = client;
server =
{ config, pkgs, ... }:
{ services.nfsKernel.server.enable = true;
services.nfsKernel.server.exports =
''
/data 192.168.1.0/255.255.255.0(rw,no_root_squash)
'';
services.nfsKernel.server.createMountPoints = true;
};
};
testScript =
''
$server->waitForJob("nfsd");
startAll;
$client1->waitForJob("tty1"); # depends on filesystems
$client1->succeed("echo bla > /data/foo");
$server->succeed("test -e /data/foo");
$client2->waitForJob("tty1"); # depends on filesystems
$client2->succeed("echo bla > /data/bar");
$server->succeed("test -e /data/bar");
# Test whether restarting nfsd works correctly.
$server->succeed("stop nfsd; start nfsd");
$client2->succeed("echo bla >> /data/bar"); # will take 90 seconds due to the NFS grace period
# Test whether we can get a lock.
$client2->succeed("time flock -n -s /data/lock true");
# Test locking: client 1 acquires an exclusive lock, so client 2
# should then fail to acquire a shared lock.
$client1->succeed("flock -x /data/lock -c 'touch locked; sleep 100000' &");
$client1->waitForFile("locked");
$client2->fail("flock -n -s /data/lock true");
# Test whether client 2 obtains the lock if we reset client 1.
$client2->succeed("flock -x /data/lock -c 'echo acquired; touch locked; sleep 100000' >&2 &");
$client1->crash;
$client1->start;
$client2->waitForFile("locked");
# Test whether locks survive a reboot of the server.
$client1->waitForJob("tty1"); # depends on filesystems
$server->shutdown;
$server->start;
$client1->succeed("touch /data/xyzzy");
$client1->fail("time flock -n -s /data/lock true");
# Test whether unmounting during shutdown happens quickly.
my $t1 = time;
$client1->shutdown;
my $duration = time - $t1;
die "shutdown took too long ($duration seconds)" if $duration > 30;
'';
}