Welcome to designate-mdns, rewritten in Go.

$ mdns --help
  -allowUnknownFlags
        Don't terminate the app if ini file contains unknown flags.
  -bind_address string
        IP to listen on (default "127.0.0.1")
  -bind_port string
        port to listen on (default "5358")
  -config string
        Path to ini config for using in go flags. May be relative to the current executable path.
  -configUpdateInterval duration
        Update interval for re-reading config file set via -config flag. Zero disables config file re-reading.
  -db string
        db connection string (default "root:password@tcp(127.0.0.1:3306)/designate")
  -debug
        enables debug mode
  -dumpflags
        Dumps values for all flags defined in the app into stdout in ini-compatible syntax and terminates the app.
  -version
        prints version information

There is a key assumption that this code makes that makes it different from the Python code. This does not listen on RabbitMQ for RPC calls from Designate. This is simply a translation between DNS Protocol and the Designate database.

This is an intentional decision. Because while it would certainly be possible to figure out how to answer to oslo_messaging, it's undesirable to chase RPC endpoints/versions. The worker model spec details a world without the need for a MiniDNS that sends NOTIFYs and queries nameservers. This is that.

It's pretty easy to get up and running, set up your Go working tree and clone this into src/github.com/rackerlabs/mdns.

Dependencies are managed with Glide so you'll need to install it brew install glide. Then glide install.

It accepts a config file with the -config flag. -help will show you what you need to configure + the defaults.

Yes. Listening on localhost, with the same Designate database, here are some basic benchmarks against the current designate-mdns. These were created using the bench tool located in /cmd.