add memory settings to nextcloud container

.env.example

@@ -5,6 +5,8 @@ DOCKER_PROXY_NETWORK=proxy
 # nextcloud
 NEXTCLOUD_TAG=23-apache
 NEXTCLOUD_DOMAIN=nextcloud.example.com
+NEXTCLOUD_MEM_RES=512m # https://docs.nextcloud.com/server/latest/admin_manual/installation/system_requirements.html#memory
+NEXTCLOUD_MEM_LIMIT=4g
 
 # postgres
 POSTGRES_TAG=14

docker-compose.yaml

@@ -45,6 +45,8 @@ services:
       args:
         NEXTCLOUD_TAG: ${NEXTCLOUD_TAG}
     restart: unless-stopped
+    mem_reservation: ${NEXTCLOUD_MEM_RES:-512m}
+    mem_limit: ${NEXTCLOUD_MEM_LIMIT:-4g}
     volumes:
       - ${VOLUME_PATH}/var/www/html:/var/www/html:rw
     secrets: