CODEWITHSUNDEEP
dockernginxdocker-composedockerfile
GurbaniX
GurbaniX

Reputation: 317

nginx: [emerg] host not found in upstream "api:5000" in /etc/nginx/conf.d/default.conf

I have searched for hours but I cannot find the root problem cause.This is my docker-compose.yml file you can see below:

version: "3"
services:
   postgres:
     image: "postgres:latest"
     environment:
      - POSTGRES_PASSWORD=postgres_password
   redis:
     image: "redis:latest"
   nginx:
     restart: always
     build:
      dockerfile: Dockerfile
      context: ./nginx
     ports:
      - '3666:80'
     depends_on:
      - api
      - client
   api:
     build:
      dockerfile: Dockerfile.dev
      context: ./server
     volumes:
      - /app/node_modules
      - ./server:/app
     environment:
      - REDIS_HOST=redis
      - REDIS_PORT=6379
      - PGUSER=postgres
      - PGHOST=postgres
      - PGDATABASE=postgres
      - PGPASSWORD=postgres_password
      - PGPORT=5432
   client:
     stdin_open: true
     build:
      dockerfile: Dockerfile.dev
      context: ./client
     volumes:
      - /app/node_modules
      - ./client:/app
   worker:
     build:
      dockerfile: Dockerfile.dev
      context: ./worker
     volumes:
      - /app/node_modules
      - ./worker:/app

This is my nginx/default.conf

upstream client {
        server client:3000;
}

upstream api {
        server api:5000;
}

server {
        listen 80;

        location / {
                proxy_pass http://client;
        }

        location /api {
                rewrite /api/(.*) /$1 break;
                proxy_pass http://api
        }
}

When I try : #docker-compose up --build
This error occured in the process:

nginx_1 | nginx: [emerg] host not found in upstream "api:5000" in /etc/nginx/conf.d/default.conf:6

Upvotes: 2

Views: 1881

Answers (2)

PauloMagnetico
PauloMagnetico

Reputation: 1

Probably there is an error in the API container when it's trying to run, so it crashes and closes down. This results in Nginx failing to connect. Open the logs of the given container, to see what's causing the issue.

Upvotes: 0

sonu patel
sonu patel

Reputation: 23

please check your docker-compose file, you must set api under services

Upvotes: 0

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