91 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
import ./make-test.nix ({ pkgs, version ? 4, ... }:
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let
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  client =
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    { pkgs, ... }:
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    { fileSystems = pkgs.lib.mkVMOverride
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        [ { mountPoint = "/data";
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            # nfs4 exports the export with fsid=0 as a virtual root directory
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            device = if (version == 4) then "server:/" else "server:/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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      networking.firewall.enable = false; # FIXME: only open statd
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    };
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in
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{
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  name = "nfs";
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  meta = with pkgs.stdenv.lib.maintainers; {
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    maintainers = [ eelco chaoflow wkennington ];
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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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        { ... }:
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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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          networking.firewall.enable = false; # FIXME: figure out what ports need to be allowed
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        };
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    };
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  testScript =
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    ''
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      $server->waitForUnit("nfs-server");
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      $server->succeed("systemctl start network-online.target");
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      $server->waitForUnit("network-online.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 ‘nfs-server’ works correctly.
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      $server->succeed("systemctl restart nfs-server");
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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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