Expand to a full range of parameters for TopicSpec

[digikata]

allow size specification et al from Python client
enhance create topic to allow optional spec

[digikata]

Currently creation of a topic spec is very limited, or you can create a topic with default

def topic_partition_create(topic: str):
    admin = FluvioAdmin.connect()

    # create
    paritions = 3
    replication = 1
    topic_spec = TopicSpec.new_computed(paritions, replication, False)

    dry_run = False
    admin.create_topic_spec(topic, dry_run, topic_spec)

It would be nicer to expose at least all the parameters that fluvio topic create supports:

def topic_partition_create(topic: str):
    admin = FluvioAdmin.connect()

    topic_spec = TopicSpec.new() # default spec
    topic_spec.storage("1Gb")
    topic_spec.retention_sec(3600)
    topic_spec.segment_size("10M")
    # ... etc

    # make the create_topic(...) call a little more pythonic
    admin.create_topic(topic) # creates with default spec
    admin.create_topic(topic, topic_spec) # creates topic with more complex spec

Reference

$ fluvio topic create -h    
Create a Topic with the given name

fluvio topic create [OPTIONS] [name]

Arguments:
  [name]  The name of the Topic to create

Options:
  -p, --partitions <partitions>         The number of Partitions to give the Topic [default: 1]
  -r, --replication <integer>           The number of full replicas of the Topic to keep [default: 1]
  -i, --ignore-rack-assignment          Ignore racks while computing replica assignment
  -f, --replica-assignment <file.json>  Replica assignment file
  -m, --mirror-apply <file.json>        Mirror apply file
      --mirror                          Flag for a mirror topic
  -d, --dry-run                         Validates configuration, does not provision
      --retention-time <time>           Retention time (round to seconds) Ex: '1h', '2d 10s', '7 days' (default)
      --segment-size <bytes>            Segment size (by default measured in bytes) Ex: `2048`, '2 Ki', '10 MiB', `1 GB`
      --compression-type <compression>  Compression configuration for topic
      --max-partition-size <bytes>      Max partition size (by default measured in bytes) Ex: `2048`, '2 Ki', '10 MiB', `1 GB`
  -c, --config <PATH>                   Path to topic configuration file
      --home-to-remote                  signify that this topic can be mirror from home to edge
  -h, --help                            Print help (see more with '--help')

https://docs.rs/fluvio/latest/fluvio/metadata/topic/struct.TopicSpec.html

[digikata]

https://infinyon.github.io/fluvio-client-python/fluvio.html#MetadataTopicSpec output by calls like https://infinyon.github.io/fluvio-client-python/fluvio.html#FluvioAdmin.all_topics should also expand. It would be nice to could also simplfy this so input and output TopicSpec are the same (but this isn't a hard requirement). -> Filed as

Similar for https://infinyon.github.io/fluvio-client-python/fluvio.html#MetadataPartitionSpec returned by https://infinyon.github.io/fluvio-client-python/fluvio.html#FluvioAdmin.list_partitions.

This could be broken off into smaller sub-issues or multiple PRs as needed.

Filed issues:

• FluvioAdmin.all_topics() output MetadataTopicSpec should return full range of topic config info
• FluvioAdmin.list_partitions() return MetadataPartitionSpec should be populated with more info

[digikata]

TopicSpec fixed w/ #528, allows creation of topics with a full range of parameters