85 lines
2.4 KiB
Nix
85 lines
2.4 KiB
Nix
{ version }:
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{ pkgs, ... }:
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let
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client =
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{ config, pkgs, ... }:
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{ fileSystems = pkgs.lib.mkOverride 50
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[ { mountPoint = "/data";
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device = "server:${if version == 4 then "/" else "/data"}";
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fsType = "nfs";
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options = "vers=${toString version}";
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}
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];
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};
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in
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{
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nodes =
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{ client1 = client;
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client2 = client;
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server =
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{ config, pkgs, ... }:
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{ services.nfs.server.enable = true;
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services.nfs.server.exports =
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''
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/data 192.168.1.0/255.255.255.0(rw,no_root_squash,no_subtree_check,fsid=0)
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'';
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services.nfs.server.createMountPoints = true;
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};
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};
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testScript =
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''
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$server->waitForUnit("nfsd");
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$server->waitForUnit("network.target");
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startAll;
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$client1->waitForUnit("data.mount");
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$client1->succeed("echo bla > /data/foo");
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$server->succeed("test -e /data/foo");
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$client2->waitForUnit("data.mount");
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$client2->succeed("echo bla > /data/bar");
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$server->succeed("test -e /data/bar");
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# Test whether restarting ‘nfsd’ works correctly.
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$server->succeed("systemctl restart nfsd");
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$client2->succeed("echo bla >> /data/bar"); # will take 90 seconds due to the NFS grace period
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# Test whether we can get a lock.
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$client2->succeed("time flock -n -s /data/lock true");
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# Test locking: client 1 acquires an exclusive lock, so client 2
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# should then fail to acquire a shared lock.
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$client1->succeed("flock -x /data/lock -c 'touch locked; sleep 100000' &");
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$client1->waitForFile("locked");
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$client2->fail("flock -n -s /data/lock true");
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# Test whether client 2 obtains the lock if we reset client 1.
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$client2->succeed("flock -x /data/lock -c 'echo acquired; touch locked; sleep 100000' >&2 &");
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$client1->crash;
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$client1->start;
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$client2->waitForFile("locked");
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# Test whether locks survive a reboot of the server.
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$client1->waitForUnit("data.mount");
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$server->shutdown;
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$server->start;
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$client1->succeed("touch /data/xyzzy");
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$client1->fail("time flock -n -s /data/lock true");
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# Test whether unmounting during shutdown happens quickly.
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my $t1 = time;
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$client1->shutdown;
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my $duration = time - $t1;
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die "shutdown took too long ($duration seconds)" if $duration > 30;
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'';
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}
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