How do I find the IP address of a virtual machine using VMware Fusion?

VMWare provides, not surprisingly, a built in tool for this, vmrun. It's under /Applications/VMware Fusion.app/Contents/Library/vmrun although it has moved around in other Fusion releases a bit.

 vmrun list
    Total running VMs: 1
    .docker/machine/machines/myvm.vmx

  vmrun getGuestIPAddress ~/.docker/machine/machines/myvm.vmx
    172.16.213.128

Here's a tip in case it helps anyone. Install avahi-daemon on the VM. This allows you to connect via hostname vmname.local, where vmname is the name of your virtual machine. In my case, the VM's name is baremetal and on the host I can run:

ssh baremetal.local

No need to know the VM's IP. :)

As Mikhail T. said, "Because VMWare is providing the NAT-ing, it ought to be able to tell us, what addresses it is currently NAT-ing for." Indeed it does:

In my VMware Fusion 6 installation, the vmnet-dhcpd daemon writes its leases to the files /var/db/vmware/vmnet-dhcpd-vmnetX.leases, where "X" is 1 and 8. Empirically :-) I established that it is vmnet8 that I should look for. Here is an excerpt from the lease file /var/db/vmware/vmnet-dhcpd-vmnet8.leases:

lease 192.168.177.129 {
    starts 1 2014/02/17 09:34:19;
    ends 1 2014/02/17 09:36:56;
    hardware ethernet 00:0c:29:2b:2b:10;
    client-hostname "ubuntu";
}

The client-hostname is the name of the VM and the number after the word lease is its IP. You can parse these entries or just simply look at the most recent ones. Make sure the lease you are looking at is still valid.