By default, it will run in `online` mode and try to register the cluster
on subnet. If the subnet license is not available in minio/mc config, it
will
- ask the user for login credentials
- use the credentials for authentication and call the registration api
- get the license from response of the api and store it in config
- use the stored license for any subsequent calls
In case the user belongs to multiple organizations in subnet, they will
be prompted to choose the appropriate organization from the list.
If the client machine is in an airgapped environment, user can choose to
use the `--offline` flag when running the command. In this case, it will
- generate and print the registration token
- ask the user to paste it in the subnet registration screen
- accept the license generated by subnet and store it in config
As part of this work, the `health` sub-command is also enhanced to:
- run in `online` mode by default, which tries to upload the health
report to subnet. Here the user will be prompted for subnet credentials
(if license not available in config) _before_ generating the health
report as it is a long running process.
- support a new flag `--offline` which can be used when subnet is not
reachable. When used, the health report will be generated in a local
json.gz file, which can then be uploaded on subnet.
The examples in help text of both the sub-commands are enhanced to list
multiple use cases.
When saving license to config, first preference is given to minio
config. If the minio server supports the `subnet license` key, the
license will be stored here. In case it is an older version of minio
that doesn't support this key, then the license will be stored in mc
host config.
