How to acquire Liferay PaaS logs in a file on a local machine without requiring browser interaction

Note: please note that Liferay has renamed its Liferay Experience Could offerings to Liferay SaaS (formerly LXC) and Liferay PaaS (formerly LXC-SM).

Issue

• Our team would like to transfer Liferay PaaS logging into a file on our local machines -- however, we would like to automate this if possible, and the regular UI logging and CLI lcp log options (including the piping example listed in the linked article) seem to require interaction with a browser.

Environment

• Liferay PaaS

Resolution

• This can be accomplished by providing authentication parameters to an lcp login command (either directly or via a script variable), prior to an lcp log and tee command combination
• As a simplistic example (which can be worked into into a more robust command and/or recurring script), the following terminal command can be used to pull all logs generated on Apr. 23 from an environment's webserver service into a text file (with the file being created without manually terminating the command, as the time fame is limited):
  

  echo [e-mail] 'password' | lcp login --no-browser; lcp log -u liferay-projectname-env.lfr.cloud --since "04/23/2021 00:00:00" --until "04/23/2021 23:59:59" | tee Apr23-webserver.txt

Additional Information

• The Liferay Cloud CLI Tool
• The Tee command
• Not able to download the logs of more than 10000 lines