import ./make-test-python.nix ( { pkgs, lib, ... }: let drbdPort = 7789; drbdConfig = { nodes, ... }: { virtualisation.emptyDiskImages = [ 1 ]; networking.firewall.allowedTCPPorts = [ drbdPort ]; services.drbd = { enable = true; config = '' global { usage-count yes; } common { net { protocol C; ping-int 1; } } resource r0 { volume 0 { device /dev/drbd0; disk /dev/vdb; meta-disk internal; } on drbd1 { address ${nodes.drbd1.networking.primaryIPAddress}:${toString drbdPort}; } on drbd2 { address ${nodes.drbd2.networking.primaryIPAddress}:${toString drbdPort}; } } ''; }; }; in { name = "drbd"; meta = with pkgs.lib.maintainers; { maintainers = [ ryantm astro birkb ]; }; nodes.drbd1 = drbdConfig; nodes.drbd2 = drbdConfig; testScript = { nodes }: '' drbd1.start() drbd2.start() drbd1.wait_for_unit("network.target") drbd2.wait_for_unit("network.target") drbd1.succeed( "drbdadm create-md r0", "drbdadm up r0", "drbdadm primary r0 --force", ) drbd2.succeed("drbdadm create-md r0", "drbdadm up r0") drbd1.succeed( "mkfs.ext4 /dev/drbd0", "mkdir -p /mnt/drbd", "mount /dev/drbd0 /mnt/drbd", "touch /mnt/drbd/hello", "umount /mnt/drbd", "drbdadm secondary r0", ) drbd1.sleep(1) drbd2.succeed( "drbdadm primary r0", "mkdir -p /mnt/drbd", "mount /dev/drbd0 /mnt/drbd", "ls /mnt/drbd/hello", ) ''; } )