Status: In Progress
Affects Version/s: 0.23.1
Fix Version/s: None
Add a new command line entry point "topo" with commands for preflight checking of a clusters topology setup.
The initial operations would be to list the implementation class of the mapper, and attempt to load it, resolve a set of supplied hostnames, then dump the topology map after the resolution process.
- ops teams trying to get a new/changed script working before deploying it on a cluster.
- someone trying to write their first script.
Resolve and list the rack mappings of the given host
This would load the hostnames from a given file, resolve all of them and list the results:
This version is intended for the ops team who have a list of hostnames, IP addresses.
- Rather than just list them, the ops team may want to mandate that there were no /default-rack mappings found, as that is invariably a sign that the script isn't handling a hostname properly.
- No attempt to be clever and do IP address resolution, FQDN to hostname mapping, etc.