Lila Yasin 4f41b50a09 AAP-57817 Add Redis connection retry using redis-py 7.0+ built-in (#16176) ...

* AAP-57817 Add Redis connection retry using redis-py 7.0+ built-in mechanism

* Refactor Redis client helpers to use settings and eliminate code duplication

* Create awx/main/utils/redis.py and move Redis client functions to avoid circular imports

* Fix subsystem_metrics to share Redis connection pool between
  client and pipeline

* Cache Redis clients in RelayConsumer and RelayWebsocketStatsManager to avoid creating new connection pools on every call

* Add cap and base config

* Add Redis retry logic with exponential backoff to handle connection failures during long-running operations

* Add REDIS_BACKOFF_CAP and REDIS_BACKOFF_BASE settings to allow
  adjustment of retry timing in worst-case scenarios without code changes

* Simplify Redis retry tests by removing unnecessary reload logic

2025-12-01 09:08:47 -05:00

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