ssl for inmem redis

[vj-hubs]

Motivation and context

Problem

CVAT cannot connect to Redis instances that require TLS/SSL (like AWS ElastiCache with transit_encryption_enabled). The Redis client settings don't include SSL configuration options.

Solution

Added SSL/TLS support for in-memory Redis (used for RQ job queues)

Files Changed

cvat/settings/base.py:

• Added CVAT_REDIS_INMEM_SSL environment variable (default: false)
• Added SSL and SSL_CERT_REQS to REDIS_INMEM_SETTINGS for django-rq
• Updated CACHE to use rediss:// scheme when SSL is enabled

helm-chart/values.yaml:

• Added redis.ssl.enabled option (default: false)

helm-chart/templates/_helpers.tpl:

• Added CVAT_REDIS_INMEM_SSL environment variable to backend pods

Usage

To enable Redis SSL, set the environment variable or Helm value:

# values.override.yaml
redis:
  ssl:
    enabled: true

How has this been tested?

Checklist

• I submit my changes into the develop branch
• I have created a changelog fragment
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (see GitHub docs)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.