Replace Redis with Valkey + reduce logging for containers caddy and redis (#230)

* replace redis w/valkey

* cleanup

* apply changes

* revert volume reuse

* fix valkey container

* revert remove `CAP_DROP` `CAP_ADD`

* revert switch from `redis` to `valkey`

* revert revert volume reuse

* update README

* apply changes

* add back useful stuff from README + keep structure + keep compat old docker compose

---------

Co-authored-by: Emilien Devos <4016501+unixfox@users.noreply.github.com>

docker-compose.yaml

@@ -16,21 +16,31 @@ services:
       - ALL
     cap_add:
       - NET_BIND_SERVICE
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "1m"
+        max-file: "1"
 
   redis:
     container_name: redis
-    image: docker.io/library/redis:alpine
-    command: redis-server --save 30 1 --loglevel warning
+    image: cgr.dev/chainguard/valkey:latest
+    command: --save 30 1 --loglevel warning
     networks:
       - searxng
     volumes:
-      - redis-data:/data
+      - valkey-data:/data
     cap_drop:
       - ALL
     cap_add:
       - SETGID
       - SETUID
       - DAC_OVERRIDE
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "1m"
+        max-file: "1"
 
   searxng:
     container_name: searxng
@@ -57,10 +67,8 @@ services:
 
 networks:
   searxng:
-    ipam:
-      driver: default
 
 volumes:
   caddy-data:
   caddy-config:
-  redis-data:
+  valkey-data: