From 31d0733851a6167595b42a7ad0b16bfa130909d8 Mon Sep 17 00:00:00 2001
From: Manuel Raynaud <manu@raynaud.io>
Date: Wed, 7 May 2025 22:12:39 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=A7(back)=20configure=20cache=20key=20?=
 =?UTF-8?q?prefix?=
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We want to change the cache key prefix using an environment variable.
This settings can be changed at every deployment in order to reset to
use a fresh new cache.
---
 src/backend/impress/settings.py               | 5 +++++
 src/helm/env.d/dev/values.impress.yaml.gotmpl | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/backend/impress/settings.py b/src/backend/impress/settings.py
index 7ab73250..57269b16 100755
--- a/src/backend/impress/settings.py
+++ b/src/backend/impress/settings.py
@@ -913,6 +913,11 @@ class Production(Base):
             "OPTIONS": {
                 "CLIENT_CLASS": "django_redis.client.DefaultClient",
             },
+            "KEY_PREFIX": values.Value(
+                "docs",
+                environ_name="CACHES_KEY_PREFIX",
+                environ_prefix=None,
+            ),
         },
     }
 
diff --git a/src/helm/env.d/dev/values.impress.yaml.gotmpl b/src/helm/env.d/dev/values.impress.yaml.gotmpl
index 1136ac43..30ada528 100644
--- a/src/helm/env.d/dev/values.impress.yaml.gotmpl
+++ b/src/helm/env.d/dev/values.impress.yaml.gotmpl
@@ -63,6 +63,7 @@ backend:
     STORAGES_STATICFILES_BACKEND: django.contrib.staticfiles.storage.StaticFilesStorage
     Y_PROVIDER_API_BASE_URL: http://impress-y-provider:443/api/
     Y_PROVIDER_API_KEY: my-secret
+    CACHES_KEY_PREFIX: "{{ now | unixEpoch }}"
   migrate:
     command:
       - "/bin/sh"