Hi, everybody.
The design and development of SPI in the DolphinScheduler community has already begun, and the development of Alert spi is about to be completed. Therefore, we need relevant documents to tell users how to develop spi. We hope that interested friends in the community can participate in this work. If you are interesting this research, you can leave a comment below. thank you very muc

Introduce new command that read/tail error/info log

Possible read commands:

• leprechaun error-log
• leprechaun info-log

Possible tail commands:

• leprechaun tail-error-log
• leprechaun tail-info-log

These commands will try to read global error and info logs if they are specified as global. Every service can have it's own error and info log so we should include default commands in age