fix(entrypoint): improve Redis connection string handling and logging

- Added provenance tracking for the original Redis connection string to enhance logging clarity.
- Updated logging to differentiate between direct environment variable usage and aliased variables for better traceability.

These changes improve the visibility of Redis connection configurations during startup, aiding in debugging and monitoring.

Signed-off-by: Innei <tukon479@gmail.com>

Author: Innei

docker-entrypoint.sh

@@ -76,9 +76,14 @@ mask_redis_password() {
 # - `--config` -> CONFIG
 # - `--collection_name` -> COLLECTION_NAME
 # - `--http_request_verbose` -> HTTP_REQUEST_VERBOSE
+#
+# Keep a tiny bit of provenance for logs.
+REDIS_CONNECTION_STRING_ORIG="${REDIS_CONNECTION_STRING:-}"
 apply_env_alias CONFIG CONFIG_PATH
 apply_env_alias COLLECTION_NAME DB_COLLECTION_NAME
 apply_env_alias HTTP_REQUEST_VERBOSE DEBUG
+# Redis env compatibility: keep consistent with DB's `MONGO_CONNECTION` handling.
+apply_env_alias REDIS_CONNECTION_STRING REDIS_CONNECTION
 
 echo "Starting Mix Space"
 echo "============== Entrypoint =============="
@@ -122,7 +127,11 @@ fi
 
 # Redis summary
 if [ -n "${REDIS_CONNECTION_STRING:-}" ]; then
-  log_kv "Redis" "$(mask_redis_password "$REDIS_CONNECTION_STRING")" "env:REDIS_CONNECTION_STRING"
+  redis_conn_source="env:REDIS_CONNECTION_STRING"
+  if [ -z "$REDIS_CONNECTION_STRING_ORIG" ] && [ -n "${REDIS_CONNECTION:-}" ]; then
+    redis_conn_source="env:REDIS_CONNECTION (aliased to REDIS_CONNECTION_STRING)"
+  fi
+  log_kv "Redis" "$(mask_redis_password "$REDIS_CONNECTION_STRING")" "$redis_conn_source"
 else
   redis_host="${REDIS_HOST:-127.0.0.1}"
   redis_port="${REDIS_PORT:-6379}"