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🔧(backend) customize cache config

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We want to split the cache config between the app cache and the session
cache. In the app cache, the default one, we allow to configure a
prefix. By default this prefix is a fixed string so the cache will be
never revoked because it is changing but it allow every instance to
implement its own strategy like prefixing the keyx cache with a
timestamp.
To not impact session, the session cache is splitted in the settings.
This commit is contained in:
Manuel Raynaud
2026-01-29 16:11:55 +01:00
parent 505b144968
commit 52cd76eb93
2 changed files with 21 additions and 3 deletions
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2
docs/env.md
View File

@@ -23,7 +23,7 @@ These are the environment variables you can set for the `impress-backend` contai
| AWS_S3_SECRET_ACCESS_KEY | Access key for s3 endpoint | |
| AWS_STORAGE_BUCKET_NAME | Bucket name for s3 endpoint | impress-media-storage |
| CACHES_DEFAULT_TIMEOUT | Cache default timeout | 30 |
| CACHES_KEY_PREFIX | The prefix used to every cache keys. | docs |
| CACHES_DEFAULT_KEY_PREFIX | The prefix used to every cache keys. | docs |
| COLLABORATION_API_URL | Collaboration api host | |
| COLLABORATION_SERVER_SECRET | Collaboration api secret | |
| COLLABORATION_WS_NOT_CONNECTED_READY_ONLY | Users not connected to the collaboration server cannot edit | false |

22
src/backend/impress/settings.py
View File

@@ -1083,6 +1083,7 @@ class Production(Base):
# Modern browsers require to have the `secure` attribute on cookies with `Samesite=none`
CSRF_COOKIE_SECURE = True
SESSION_COOKIE_SECURE = True
SESSION_CACHE_ALIAS = "session"
# Privacy
SECURE_REFERRER_POLICY = "same-origin"
@@ -1090,11 +1091,12 @@ class Production(Base):
# Conversion API: Always verify SSL in production
CONVERSION_API_SECURE = True
# Cache
CACHES = {
"default": {
"BACKEND": "django_redis.cache.RedisCache",
"LOCATION": values.Value(
"redis://redis:6379/1",
"redis://redis:6379/0",
environ_name="REDIS_URL",
environ_prefix=None,
),
@@ -1108,10 +1110,26 @@ class Production(Base):
},
"KEY_PREFIX": values.Value(
"docs",
environ_name="CACHES_KEY_PREFIX",
environ_name="CACHES_DEFAULT_KEY_PREFIX",
environ_prefix=None,
),
},
"session": {
"BACKEND": "django_redis.cache.RedisCache",
"LOCATION": values.Value(
"redis://redis:6379/0",
environ_name="REDIS_URL",
environ_prefix=None,
),
"TIMEOUT": values.IntegerValue(
30, # timeout in seconds
environ_name="CACHES_SESSION_TIMEOUT",
environ_prefix=None,
),
"OPTIONS": {
"CLIENT_CLASS": "django_redis.client.DefaultClient",
},
},
}