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95 lines
2.9 KiB
Nix
95 lines
2.9 KiB
Nix
import ../make-test-python.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 ];
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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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import time
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server.wait_for_unit("nfs-server")
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server.succeed("systemctl start network-online.target")
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server.wait_for_unit("network-online.target")
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start_all()
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client1.wait_for_unit("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.wait_for_unit("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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with subtest("restarting 'nfs-server' works correctly"):
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server.succeed("systemctl restart nfs-server")
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# will take 90 seconds due to the NFS grace period
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client2.succeed("echo bla >> /data/bar")
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with subtest("can get a lock"):
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client2.succeed("time flock -n -s /data/lock true")
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with subtest("client 2 fails to acquire lock held by client 1"):
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client1.succeed("flock -x /data/lock -c 'touch locked; sleep 100000' &")
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client1.wait_for_file("locked")
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client2.fail("flock -n -s /data/lock true")
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with subtest("client 2 obtains lock after resetting client 1"):
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client2.succeed(
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"flock -x /data/lock -c 'echo acquired; touch locked; sleep 100000' >&2 &"
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)
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client1.crash()
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client1.start()
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client2.wait_for_file("locked")
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with subtest("locks survive server reboot"):
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client1.wait_for_unit("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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with subtest("unmounting during shutdown happens quickly"):
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t1 = time.monotonic()
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client1.shutdown()
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duration = time.monotonic() - t1
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assert duration < 30, f"shutdown took too long ({duration} seconds)"
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'';
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})
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