use mix specific image and enable mix

docker-compose.yml

@@ -25,7 +25,7 @@ x-pg-exporter-env: &pg_exp_env
 # Services definitions
 services:
   nwaku:
-    image: ${NWAKU_IMAGE:-wakuorg/nwaku:v0.36.0}
+    image: ${NWAKU_IMAGE:-harbor.status.im/wakuorg/nwaku:mixpoc}
     restart: on-failure
     ports:
       - 30304:30304/tcp

run_node.sh

@@ -111,6 +111,7 @@ fi
 exec /usr/bin/wakunode\
     --relay=true\
     --filter=true\
+    --mix=true\
     --peer-exchange=true\
     ${LIGHTPUSH}\
     --keep-alive=true\