moleculerjs / moleculer-web

:earth_africa: Official API Gateway service for Moleculer framework
http://moleculer.services/docs/moleculer-web.html
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Transporter cannot connect to a redis server instance in a docker-compose stack #352

Closed rishighan closed 2 months ago

rishighan commented 6 months ago

Hello,

I have the following docker-compose setup:


x-userdata-volume: &userdata-volume
  type: bind
  source: ${USERDATA_DIRECTORY}
  target: /userdata

x-comics-volume: &comics-volume
  type: bind
  source: ${COMICS_DIRECTORY}
  target: /comics

services:
  core-services:
    build:
      # context: https://github.com/rishighan/threetwo-core-service.git
      context: ./
      dockerfile: Dockerfile
    image: frishi/threetwo-core-service
    container_name: core-services
    ports:
      - "3000:3000"
      - "3001:3001"
    depends_on:
      - db
      - redis
      - elasticsearch
      - kafka
      - zookeeper
    environment:
      name: core-services
      SERVICES: api,library,jobqueue,settings,search,socket,imagetransformation,torrentjobs,opds
    env_file: docker-compose.env
    volumes:
      - *comics-volume
      - *userdata-volume
    networks:
      - proxy

  zookeeper:
    image: zookeeper:latest
    container_name: zookeeper
    ports:
      - "2181:2181"
    networks:
      - proxy

  kafka:
    image: apache/kafka:latest
    container_name: kafka
    ports:
      - "9092:9092"
    environment:
      KAFKA_ADVERTISED_LISTENERS: INSIDE://kafka:9093,OUTSIDE://localhost:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT
      KAFKA_LISTENERS: INSIDE://0.0.0.0:9093,OUTSIDE://0.0.0.0:9092
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    depends_on:
      - zookeeper
    networks:
      - proxy

  db:
    image: "bitnami/mongodb:latest"
    container_name: database
    networks:
      - proxy
    ports:
      - "27017:27017"
    volumes:
      - "mongodb_data:/bitnami/mongodb"

  redis:
    image: "bitnami/redis:latest"
    container_name: redis 
    environment:
      ALLOW_EMPTY_PASSWORD: "yes"
    networks:
      - proxy
    ports:
      - "6379:6379"

  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.16.2
    container_name: elasticsearch
    environment:
      - "discovery.type=single-node"
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - "xpack.security.enabled=true"
      - "xpack.security.authc.api_key.enabled=true"
      - "ELASTIC_PASSWORD=password"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    ports:
      - 9200:9200
    networks:
      - proxy

networks:
  proxy:
    external: true

volumes:
  mongodb_data:
    driver: local
  elasticsearch:
    driver: local

I want core-services to use the redis service as the transporter and to that end, the docker-compose.env is set up like so:

NAMESPACE=
LOGGER=true
LOGLEVEL=info
SERVICEDIR=dist/services

COMICS_DIRECTORY=/Users/rishi/work/threetwo-core-service/comics
USERDATA_DIRECTORY=/Users/rishi/work/threetwo-core-service/userdata
REDIS_URI=redis://redis:6379
ELASTICSEARCH_URI=http://elasticsearch:9200
MONGO_URI=mongodb://mongo:27017/threetwo
UNRAR_BIN_PATH=/opt/homebrew/bin/unrar
SEVENZ_BINARY_PATH=/opt/homebrew/bin/7za

CACHER=Memory

However, when I try to pull the stack up, env $(cat docker-compose.env | xargs) docker-compose up I get this error:

core-services  | Error: connect ECONNREFUSED 127.0.0.1:6379
core-services  |     at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1606:16) {
core-services  |   errno: -111,
core-services  |   code: 'ECONNREFUSED',
core-services  |   syscall: 'connect',
core-services  |   address: '127.0.0.1',
core-services  |   port: 6379
core-services  | }

Now, REDIS_URI has been explicitly set to the URL facilitated by Docker DNS, which is redis://redis:6379. So I am at a loss trying to figure out why moleculer transporter defaults to 127.0.0.1

What gives here?

icebob commented 2 months ago

REDIS_URI is not the correct env value, you should set TRANSPORTER=redis://.... like here:

https://github.com/moleculerjs/moleculer-template-project/blob/fa9ba08d05469510a1ce26f1901eed9a1247dbfd/template/docker-compose.env#L10