Storage Units Port range customization

[aravindavk]

Global option to customize the Port allocation range.

kadalu config PROD storage-unit-port-start 5001
kadalu config PROD storage-unit-port-end 5100

Take start + 100 if the storage-unit-port-end is not configured.

[leelavg]

• Out of context, I don't know what above does however why not range with a single config op?
  kadalu config PROD storage-unit-port-range <start>-<end>

[aravindavk]

• Out of context, I don't know what above does however why not range with a single config op?
  kadalu config PROD storage-unit-port-range <start>-<end>

Looks good. Thanks.

When a Volume is started, each Storage Unit process(Brick Process) will get a Port. GlusterFS allocates the Brick ports dynamically on every restart of a Brick process. Kadalu/Moana decided to allocate Port once at the time of Volume creation and never change on Storage unit restart.

The Hardcoded port range used by Moana is 49252-49452 (https://github.com/kadalu/moana/blob/main/mgr/src/server/datastore/ports.cr#L16). With the above-proposed option, the user can configure the range.

GlusterFS uses 49152-60999 (https://github.com/gluster/glusterfs/blob/devel/extras/firewalld/glusterfs.xml#L13)

[aravindavk]

CLI should warn with something like the below,

$ kadalu config <POOL> storage-unit-port-range <start>-<end>
Port range updated successfully. Please note that this
configuration will not change the Ports that are already
allocated for existing Volumes.