Thanks again for your detailed answer. Currently I think the simplest way forward for us is to check versions of dependent services in the monitoring health ch

Thanks again for your detailed answer. Currently I think the simplest way forward for us is to check versions of dependent services in the monitoring health check, so that at least the operators have a simple way to figure out missing dependencies. All other options (blue/green, rolling, ...) require too much infrastructure automation that we don't yet have. Though it still itches me to write some generic, remote dependency management that's flexible enough to be used in different deployment scenarios and with diverse tools. Maybe later :-)