Refactor Celery settings to use dynamic Redis host configuration

deploy/settings_local.py

@@ -89,8 +89,9 @@ CIMAR_PASSWORD = "<REPLACE-WITH-SECRET>"
 
 # Celery settings — when running in docker the redis service is
 # reachable at the `redis` hostname provided by docker compose.
-CELERY_BROKER_URL = "redis://redis:6379"
-CELERY_RESULT_BACKEND = "redis://redis:6379"
+REDIS_HOST = os.environ.get("REDIS_HOST", "redis")
+CELERY_BROKER_URL = f"redis://{REDIS_HOST}:6379"
+CELERY_RESULT_BACKEND = f"redis://{REDIS_HOST}:6379"
 
 DATABASES = {
     "default": {

deploy/settings_local.py.example

@@ -56,5 +56,6 @@ CIMAR_PASSWORD = "<REPLACE-WITH-SECRET>"
 
 # Celery settings — when running in docker the redis service is
 # reachable at the `redis` hostname provided by docker compose.
-CELERY_BROKER_URL = "redis://redis:6379"
-CELERY_RESULT_BACKEND = "redis://redis:6379"
+REDIS_HOST = os.environ.get("REDIS_HOST", "redis")
+CELERY_BROKER_URL = f"redis://{REDIS_HOST}:6379"
+CELERY_RESULT_BACKEND = f"redis://{REDIS_HOST}:6379"

rad/settings.py

@@ -381,8 +381,9 @@ CIMAR_USERNAME = ""
 CIMAR_PASSWORD = ""
 
 # Celery settings
-CELERY_BROKER_URL = "redis://redis:6379"
-CELERY_RESULT_BACKEND = "redis://redis:6379"
+REDIS_HOST = os.environ.get("REDIS_HOST", "redis")
+CELERY_BROKER_URL = f"redis://{REDIS_HOST}:6379"
+CELERY_RESULT_BACKEND = f"redis://{REDIS_HOST}:6379"
 
 # Django 6 task framework settings.
 # Use DJANGO_TASK_BACKEND to select your backend implementation.
@@ -403,7 +404,7 @@ CHANNEL_LAYERS = {
     "default": {
         "BACKEND": "channels_redis.core.RedisChannelLayer",
         "CONFIG": {
-            "hosts": [("redis", 6379)],
+            "hosts": [(REDIS_HOST, 6379)],
         },
     },
 }