Rules Decision throwing errors in container

[hawk4031]

Using the Docker Compose instructions, I have successfully built all containers. When running docker-compose up, I see the following stack trace in the Rules Decision logs:

pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [1] [INFO] Starting gunicorn 19.7.1
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [1] [INFO] Listening at: http://0.0.0.0:8080 (1)
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [1] [INFO] Using worker: sync
pyrrha-rulesdecision    | /usr/local/lib/python3.8/os.py:1023: RuntimeWarning: line buffering (buffering=1) isn't supported in binary mode, the default buffer size will be used
pyrrha-rulesdecision    |   return io.open(fd, *args, **kwargs)
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [8] [INFO] Booting worker with pid: 8
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [8] [ERROR] Exception in worker process
pyrrha-rulesdecision    | Traceback (most recent call last):
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/arbiter.py", line 578, in spawn_worker
pyrrha-rulesdecision    |     worker.init_process()
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/workers/base.py", line 126, in init_process
pyrrha-rulesdecision    |     self.load_wsgi()
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/workers/base.py", line 135, in load_wsgi
pyrrha-rulesdecision    |     self.wsgi = self.app.wsgi()
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/app/base.py", line 67, in wsgi
pyrrha-rulesdecision    |     self.callable = self.load()
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
pyrrha-rulesdecision    |     return self.load_wsgiapp()
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
pyrrha-rulesdecision    |     return util.import_app(self.app_uri)
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/gunicorn/util.py", line 352, in import_app
pyrrha-rulesdecision    |     __import__(module)
pyrrha-rulesdecision    |   File "/usr/app/src/core_decision_flask_app.py", line 2, in <module>
pyrrha-rulesdecision    |     from flask import Flask, Response, jsonify, abort
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/flask/__init__.py", line 21, in <module>
pyrrha-rulesdecision    |     from .app import Flask, Request, Response
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/flask/app.py", line 25, in <module>
pyrrha-rulesdecision    |     from . import cli, json
pyrrha-rulesdecision    |   File "/usr/app/venv/lib/python3.8/site-packages/flask/json/__init__.py", line 21, in <module>
pyrrha-rulesdecision    |     from itsdangerous import json as _json
pyrrha-rulesdecision    | ImportError: cannot import name 'json' from 'itsdangerous' (/usr/app/venv/lib/python3.8/site-packages/itsdangerous/__init__.py)
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [8] [INFO] Worker exiting (pid: 8)
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [1] [INFO] Shutting down: Master
pyrrha-rulesdecision    | [2022-02-18 19:04:42 +0000] [1] [INFO] Reason: Worker failed to boot.
pyrrha-rulesdecision exited with code 3

No modifications have been made to this code; it is running out-of-the-box. It appears there's a package issue according to the stack trace.

[hawk4031]

One of the packages that's installed as a dependency of Flask is itsdangerous. This dependency was updated on 2022-02-17 and removed the json import. You can see the changelog here. A recommendation I saw was to ping itsdangerous to the previous release of 2.0.1.

Information gathered from this StackOverflow post.

[upkarlidder]

Thank you @hawk4031! Appreciate your work here.