Support skipping Redis TLS cert verification

[mraerino]

NetBox version

v.2.10.8

Feature type

Change to existing functionality

Proposed functionality

Allow setting ssl_cert_reqs=None on the redis client used for Cacheops and Django-RQ.

Use case

This is required for using the Heroku-provided Redis instances with Netbox. They force you to use TLS, but don't provide proper certificates. See https://devcenter.heroku.com/articles/heroku-redis#connecting-in-python

Database changes

No response

External dependencies

No response

This is how it could be implemented:

---

For Django-RQ the option is available as SSL_CERT_REQS on the config dict (code change)

---

For Django-Cacheops it seems switching from an url to a kwargs dict for redis-py would suffice: https://github.com/Suor/django-cacheops/blob/master/cacheops/redis.py#L103-L107

e.g. changing the config block in settings.py to

CACHEOPS_REDIS = {
  'host': CACHING_REDIS_HOST,
  'port': CACHING_REDIS_PORT,
  'password': CACHING_REDIS_PASSWORD,
  'ssl': CACHING_REDIS_SSL,
  'ssl_cert_reqs': CACHING_REDIS_VERIFY_CERT ? 'required' : None,
}