Jobs docker image raises exception with latest images

[tuxdna]

Local setup is giving following errors with latest Docker images:

coreapi-jobs            | + f8a-jobs.py initjobs
coreapi-jobs            | Traceback (most recent call last):
coreapi-jobs            |   File "/usr/bin/f8a-jobs.py", line 11, in <module>
coreapi-jobs            |     from f8a_jobs.scheduler import Scheduler
coreapi-jobs            |   File "/usr/lib/python3.4/site-packages/f8a_jobs/scheduler.py", line 20, in <module>
coreapi-jobs            |     import f8a_jobs.handlers as handlers
coreapi-jobs            |   File "/usr/lib/python3.4/site-packages/f8a_jobs/handlers/__init__.py", line 17, in <module>
coreapi-jobs            |     from .nuget_popular_analyses import NugetPopularAnalyses
coreapi-jobs            |   File "/usr/lib/python3.4/site-packages/f8a_jobs/handlers/nuget_popular_analyses.py", line 8, in <module>
coreapi-jobs            |     from f8a_worker.solver import NugetReleasesFetcher
coreapi-jobs            |   File "/usr/lib/python3.4/site-packages/f8a_worker/solver.py", line 10, in <module>
coreapi-jobs            |     from pip._internal.req.req_file import parse_requirements
coreapi-jobs            | ImportError: No module named 'pip._internal'

Due to above error I am not able to run ingestion on my system.

Apparently, many others are facing same issue with latest pip3 recently:

• My pip is broken. _internal module cannot be imported. pypa/pip#5253
• https://askubuntu.com/questions/1025189/pip-is-not-working-importerror-no-module-named-pip-internal

For:

• Jobs docker image raises exception with latest images #280

[tuxdna]

Jobs image uses older version of worker base image, hence the error. Need to bump worker version in Docker file.