NSO in docker and python venv

[stask]

Team,

Need help with understaning how NSO in docker loads Python libraries (especially from pyvenv inside packages). Documentation stated that NSO in docker should automatically detect & load pyvenv inside packages. Or is it only for non-Cisco NSO docker images? 

What I have:

1. Official Cisco NSO docker PROD image 6.4.6 running inside docker-ce in Oracle Linux 9 

2. Docker container started as part of docker-compose. Container has persistent volume connected as /nso/run/packages

3. Example cisco-nso-ldap-auth package copied to /nso/run/packages. With BUILD image I did: make all && make pyvenv 

4. Package loaded in NSO & has up state

5. While trying to do LDAP auth I see in log - " package authentication using cisco-nso-ldap-auth program ret bad output: ModuleNotFoundError: No module named 'ldap'"

6. In ncs-python-vm.log - "ncs[24]: <<"cisco-nso-ldap-auth">> has no runnable component"

7. In non-docker environment it works fine because I can install python3-ldap package & solve the dependencies. 

Thank you.

[stask · Accepted solution]

Team, 

Solved the issue following way:

1. With build nso container created pyvenv under /nso/run

2. installed python-ldap module from requirements file with venv pip

3. updated authenticate script (replaced "#!/usr/bin/env python3" with "#!/nso/run/pyvenv/bin/python3")