Also strip that domain component from the labels collected.

Merge most of the code from the `customize-*.nix` nodes into the base modules.

See merge request !233

move all of the hosts from 192.168.67.x to 192.168.56.x

Closes #101

See merge request !232

The VirtualBox documentation says this is the network to use for host-only
networking.

use a different state directory for the issuer's voucher database

Closes privatestorageops#399

See merge request !226

mkfs silently truncates "zkapissuer-database" to "zkapissuer-datab" and
everything falls apart.

and the update takes care of starting it automatically

The point is this is where PaymentServer's persistent state goes.  That
includes vouchers but might include more stuff too.

The hardware modules can now configure this fileSystem in a way appropriate
for themselves and the issuer module can enable that configuration when it is
enabled itself.

now all nodes load the issuer module so we can always supply issuer
configuration, where it makes sense to do so, even on systems where the issuer
is not going to be enabled.

if that sounds silly read the comment in default.nix

Update nixpkgs.

See merge request !227

bump ZKAPAuthorizer to the fixed version

Closes bizops#220

See merge request !225

use the new one we're setting up on a new filesystem

Update nixpkgs.

See merge request !223

Monitoring/tahoe metrics collector: Add systemd dependency declarations

See merge request !220

Thanks go out to @tomprince!

Weekly nixpkgs update.

See merge request !221

Update nixpkgs.

See merge request !219