[RPK] Readying RPK for GA

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List of pending changes

• Stability
  • mock testing of start stop, etc
  • ducktape tests
• windows support
• expose configuration management commands
  • replace a broker/node in a quorum
  • remove a node and shrink a quorum / replication factor
  • add a node and stretch a quorum / replication factor
  • move a broker to a different node
• discoverability + namespacing
• benchmarking
  • rpk produce should behave similarly to the kafka upstream benchmarks

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@rkruze @0x5d @dotnwat

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From a customer regarding benchmarks:

Hi - I was playing redpana container and rpk command. Great work!
regarding rpk api produce and consume - I know they are not documented 
but help comes up and I want them more compatible with kafka-console-produce.sh 
and kafka-console-consume.sh. In particular,produce should generate one 
message per line from input/file. 
And consume can limit the max-messages. Thanks. -Gene

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• testing

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#270

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• operator (user is a sysops)

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pulumi

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aws cdk

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terraform modules

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ansible modules

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helm chart integration

[rkruze]

I want to suggest that we put all the commands that deal with redpanda under a new namespace, rpk redpanda. I would assume we would put the following commands under this:

• config
• status
• check
• mode
• start
• stop
• tune

[rkruze]

It would also be nice to get more information about the cluster when running rpk status or rpk redpanda status. Currently today nothing is shown about the state of the cluster if no topics are created. Ideally, we should output something like the following: https://www.cockroachlabs.com/docs/v20.1/cockroach-node.html#show-the-status-of-all-nodes

[rystsov]

Added configuration management section. We don't have configuration management commands exposed via rpk and when a node dies we don't provide customers a way to replace it so if we do nothing the cluster eventually becomes unavailable.