@Oren Thank you so much for your efforts. I've tried your suggestion without success. I'm sure I restart the whole service with 'docker-compose down', and then 'up -d.'
By the way, did you add the line in the docker-compose.yml? The file doesn't accept '=' for key value mapping. So, I used following lines.

webserver:
command:
- webserver
container_name: clearml-webserver
environment:
WEBSERVER__fileBaseUrl: "http//192.168.1.145:8081"
# CLEARML_SERVER_SUB_PATH : cl...

@<1523703097560403968:profile|CumbersomeCormorant74> , Attached are two zip files like below.
normal-log.zip contains docker-compose.yml and a webserver log when volumes is not used.
volume-log.zip have files when volumes is added to webserver section.
Thanks

I also checked the log and it doesn't contain any case of fileBaseURL.

The log is around 900kb and fileBaseURL is not found.

@<1523703097560403968:profile|CumbersomeCormorant74> Added the last two lines below in my docker-compose.yml without any success. Tried both http and https.

webserver:
command:
- webserver
container_name: clearml-webserver
environment:
WEBSERVER__fileBaseUri: https//192.168.1.145:8081

@Oren I've noticed typo in my setting. I used fileBaseUri instead of fileBaseUrl. However, fixing the typo doesn't solve the problem.

I'm using 80 instead of 8080. So, I tried None . The, I got {}.

@<1523703097560403968:profile|CumbersomeCormorant74> , Thanks a lot for your help. It is working now with your docker-compose.yml. The value of file_server is correctly displayed on the 'create credentials' page. Thank you so much!!!

@<1523703097560403968:profile|CumbersomeCormorant74> , Where can I find the web server log? I have an apiserver.log and a fileserver.log in /opt/clearml/logs. Nothing else.

Hi @<1523703097560403968:profile|CumbersomeCormorant74> ,
The web server keeps restarting after adding the volume parameter and configuration.json you suggested and restarting the docker-compose. Please let me know if you need logs to investigate. Thanks a lot for your efforts.

Hi CostlyOstrich36 Thanks for your comment. I modified the environment variable to ' CLEARML_FILES_HOST= http://fileserver:8001 ' and restart the server. But, the credentials page still presents 'undefined' for the variable. Thanks anyway.

Hi @<1523701087100473344:profile|SuccessfulKoala55> Thank you very much for your help. It's working fine now after I set the keys. Thanks again 😀