[KUDU-3410] allow kudu master list as an argument

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: CLI
• Assignee: Unassigned
• Reporter: Gabor Zele
• Created: 24/Oct/22 14:45
• Updated: 24/Oct/22 14:45

Description

Currently, CLI commands accepts the master addresses at a fixed position:

kudu <command> <subcommand> <master_addresses>

While arguments (starting with "-") could be placed anywhere after "kudu". All of the below variants produce valid output:

# kudu master list <master_addresses> -format=csv
# kudu -format=csv master list <master_addresses>
# kudu master list -format=csv <master_addresses>

My problem is that I would like to create a shell alias for the "kudu" command, so I don't have to specify any <master_addresses> at all. Unfortunately this is not easy, as:

# alias kudu="kudu <master_addresses>"

won't work, as <master_addresses> are expected to be after the command/subcommand part.

However, if master list could be passed as an argument, then this would be easily possible:

# alias kudu="kudu -master_addresses=<master_addresses>" 
# alias kudu="kudu -master_addresses=@cluster_alias" 

as the "-master_addresses=" argument could be placed before the command/subcommand part.