Ioredis: Fails to connect to redis, when running inside of docker container

[mishushakov]

Hey, the library works like a charm, thanks a lot. My application is a microservice, which connects to a redis database, which is running inside of docker. However, I can not connect to redis, when my application is running inside of container. I can still connect to redis remotely via cli on other host and it clearly works. I can also run my application outside of docker (directly on my host machine) and it would still connect. But when I build and run the image, it says:

[ioredis] Unhandled error event: Error: connect ECONNREFUSED 127.0.0.1:6379
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1085:14)

I also tried to provision my application to docker swarm with compose file on the same network as redis

version: "3"
services:
  myapp:
    image: user/app:latest
    deploy:
      restart_policy:
        condition: on-failure
    ports:
      - "5000:5000"
    networks:
      - webnet

  redis:
    image: redis
    ports:
      - "6379:6379"
    volumes:
      - "./data:/data"
    command: redis-server --appendonly yes
    networks:
      - webnet

networks:
  webnet:

But it still wouldn't connect

Here is the code, I use in my application:

const redis = require('ioredis')
const appdb = new redis()

module.exports = { db }

Thank you in advance.

[luin]

Have you tried connecting to Redis via host "redis" (see https://docs.docker.com/compose/networking/)?

const redis = require('ioredis')
const appdb = new redis({host: 'redis'})

module.exports = { db }

[mishushakov]

Hey, @luin thanks for quick reply, I will try it and comment back in the issue in a second. Thank you

[mishushakov]

Still fails, but now with this error:

[ioredis] Unhandled error event: Error: getaddrinfo ENOTFOUND redis redis:6379
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)

[luin]

Will, that is a network problem and it should not be related to ioredis.

[mishushakov]

Ok, then I will try to hack around on my docker machine. Thank you

[hendrixroa]

@MishUshakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

[DOTA2mm]

Same problem for me, it's still exist I've tried all suggestions above. Who can help me to resolve this, please.

[DOTA2mm]

Same problem for me, it's still exist I've tried all suggestions above. Who can help me to resolve this, please.

It's ok after I run docker-compose build then docker-compose up.

[portinos]

@mishushakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

Hey! How about running redis without docker-compose? I mean, running only the image. I lift the redis container using docker run --name redis.server -d -p 6379:6379 redis:latest but I can't connect from Sails (Node.js) using redis.server as hostname; the response is ENOTFOUND. The docker container is the official: https://hub.docker.com/_/redis/

[shanurrahman]

@mishushakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

You saved me tonight

[ravipam]

@mishushakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

You saved me tonight

Unfortunately did not work for me.
I deleted the docker networks. do i need to delete any other network, if any , please guide me.
i still have the error: [ioredis] Unhandled error event: Error: connect ECONNREFUSED 127.0.0.1:6379

Below is my docker-compose.yml file
version: '3'
services:
redis:
image: 'redis'
command: ["redis-server", "--bind", "redis", "--port", "6379"]
ports:
- "6379:6379"
networks:
- app-tier
apiserver:
build: .
ports:
- "7001:7000"
networks:
- app-tier
depends_on:
- redis
networks:
app-tier:
driver: bridge

below is my app.js
const Redis = require('ioredis');
const redis = new Redis();
I changed the above to const redis = new Redis({host: 'redis'}); but i still get the error

package.json file references to ioredis,
"ioredis": "^4.0.2",

[armenr]

I'm having a similar issue, and I've tried it a few different ways as suggested here.

[shanurrahman]

Try using something like this, i dont see you using the port no to connect
to redis.
redis: new Redis({ port: 6379, host: process.env.REDIS_HOST, password: process.env.REDIS_PASS, })

in place of host you can simply use 'redis'
dont forget to provide the port number

[shamim-42]

@mishushakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

After couple of days of stuck today my project is running in your way. Thanks !

[mhtsharma948]

@mishushakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

This still doesn't works for me, throwing this error.
redis_1 | 1:M 21 Jul 2020 17:47:13.048 # Could not create server TCP listening socket redis:6380: Name or service not known

[saefullohmaslul]

@mishushakov Try delete the networks and replace redis section by:

redis:
    image: redis:latest
    command: ["redis-server", "--bind", "redis", "--port", "6379"]

That works for me.

you save my life

[103cuong]

The same issue, any solution for this problem? Thanks.

version

"ioredis": "^4.17.3",
"typescript": "^3.8.3"

docker-compose

version: "3"

networks:
  dev_env_network:
    driver: bridge

services:
  redis:
    container_name: redis
    image: redis:6.0-alpine
    restart: always
    ports:
      - 6379:6379
    volumes:
      - redis:/data
    networks:
      - dev_env_network
  auth-service:
    container_name: auth-service
    image: node:12
    working_dir: /app
    env_file: .env
    environment:
      - PG_DB=auth-service
    ports:
      - 50002:50002
    volumes:
      - ../auth-service:/app
      - ../auth-service/node_modules:/app/node_modules
    networks:
      - dev_env_network
    command: yarn start:dev

application

import Redis from 'ioredis';
const redis = new Redis({
    host: 'redis',
    port: 6379,
  });

error

Error: connect ECONNREFUSED 127.0.0.1:6379
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16) {
  errno: 'ECONNREFUSED',
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 6379
}

[erinoggz]

const client = redis.createClient({
    host: 'redis-server',
    port: 6379
})

Then rebuild ur docker with => docker-compose up --build 

[DrPep]

For those who still have an issue here, my docker compose setup is/was configured with a bridged network setup. Adding Redis to the bridged network was required to allow it's network peers to connect:

redis:
  container_name: redis
  image: redis:latest
  command: ["redis-server", "--bind", "redis", "--port", "6379"]
  networks:
    - mynetwork 

networks:
  mynetwork:
    driver: bridge

Then connecting from my docker-hosted Node app with:

import redis from "ioredis"
const appdb = new redis({ host: "redis", port: 6379 })

If you want to then bind from the host machine, add in the requisite docker-compose port binding to the redis config block:

ports:
  - 6379:6379

HTH!