templated service dependency on systemd

Question

I have some templated Base Services. Let's call them basis@foo.service, basis@bar.service (and optionally more basis@xyz.service) . And I have a more complex service which should be started after all of these Base Services. Let's call this service complex.service

How can I make the complex.service start after all base services are started? What is the correct way for the file complex.service?

[Unit]
After=basis@.service
...

or

[Unit]
After=basis@*.service
...

Answer 1

After takes just a list of unit names, so it is After=basis@foo.service basis@bar.service basis@xyz.service, or from the other end Before=complex.service in basis@.service.