Services don't communicate internally in Docker - asp.net

Question

I am trying to run an ASP.NET Core 2.0 application (REDIS + RabbitMQ + NGINX) on Docker.
When I upload these containers via docker-compose, these services work and are even accessible by Windows, since they are mapped by "HostPORT: ContainerPORT".
However, when testing the App itself, .NET informs in console that it was not possible to connect to the REDIS, for example.
fail: Microsoft.AspNetCore.Server.Kestrel[13]
Connection id "0HLDGDJNAEB9E", Request id "0HLDGDJNAEB9E:00000001": An unhandled exception was thrown by the application.
StackExchange.Redis.RedisConnectionException: It was not possible to connect to the redis server(s); to create a disconnected multiplexer, disable AbortOnConnectFail. SocketFailure on PING.
My docker-compose.yml:
version: '3'
services:
nginx:
build:
dockerfile: ./nginx/nginx.dockerfile
context: .
image: nginx
container_name: nginx
ports:
- "80:80"
networks:
- production-network
depends_on:
- "wordSearcherApp"
wordSearcherApp:
image: wordsearcherapplication
container_name: wordsearcherapp
build:
context: .
dockerfile: WordSearcher/Dockerfile
networks:
- production-network
ports:
- "61370"
volumes:
- repository:/repository
depends_on:
- redis
- rabbit
redis:
image: redis
container_name: redis
ports:
- "6379:6379"
networks:
- production-network
rabbit:
image: rabbitmq
container_name: rabbitmq
ports:
- "5672:5672"
- "15672:15672"
networks:
- production-network
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:15672"]
interval: 30s
timeout: 10s
retries: 5
networks:
production-network:
driver: bridge
volumes:
repository:
driver: local
For Connection in C#, i use this connectionString localhost:6379
How can i do this?
Thanks.

Answer 1

Use redis:6379 instead of localhost:6379.
Docker-Compose will use the name you've defined for a service in the docker-compose.yml file as the hostname for its container.