using a persistent redis image

build/redis/Dockerfile

+FROM redis:7
+
+COPY redis.conf /usr/local/etc/redis/redis.conf
+CMD [ "redis-server", "/usr/local/etc/redis/redis.conf" ]
\ No newline at end of file

build/redis/redis.conf

+# 5GB Storage for now
+maxmemory 5368709120
+# Redis is used as persistent storage here: No eviction
+maxmemory-policy noeviction
+
+# Use Appendonly for persistence
+# Disable regular snapshots: using AOF
+save ""
+appendonly yes
+appendfsync always
+auto-aof-rewrite-percentage 100
+auto-aof-rewrite-min-size 128mb
\ No newline at end of file

docker-compose.yml

@@ -2,6 +2,7 @@ version: '3'
 
 volumes:
   nodecache: {}
+  redisdata: {}
 
 services:
   express:
@@ -16,4 +17,8 @@ services:
     ports:
       - 8080:3000
   redis:
-    image: redis:7
+    build:
+      context: ./build/redis
+    volumes:
+      - redisdata:/data
+    restart: unless-stopped