Docker Compose Lab-Postgres authentication problem

Docker
#1

I have done everything as told in the docker compose lecture. They did not told about using the environment variable in postgres. When i was not using the environment variable my container was stopping. So i used the environment variable and started a new container my database started working fine. But when i use this in docker-compose.yml it gives authentication error.
This is my docker file
redis:
image: redis

db:
image: postgres:9.4
environment:
POSTGRES_PASSWORD: postgres

worker:
image: worker-app
links:
- db
- redis

vote:
image: voting-app
ports:
- 5000:80
links:
- redis

result:
image: result-app
ports:
- 5001:80
links:
- db
This is the Error
db_1 | FATAL: password authentication failed for user “postgres”
db_1 | DETAIL: Connection matched pg_hba.conf line 95: “host all all all md5”
result_1 | Waiting for db

1 Like
#2

Please, try this yaml

version: “3”
services:
redis:
image: redis

db:
image: postgres:9.4

vote:
image: voting-app
ports:
- 5000:80
links:
- redis

worker:
image: httpd
depends_on:
- redis
- db
links:
- redis
- db

result:
image: nginx
depends_on:
- db
ports:
- 5001:80
links:
- db

#3

Hi,

The yaml file you have shared, does not show the result page for port 5001. The page shows the welcome page of nginx.
How to resolve that?

#4

please try with the following code:

services:

  db:

    environment:

      POSTGRES_PASSWORD: mysecretpassword

    image: postgres

  wordpress:

    image: wordpress

    ports:

    - 8085:80

version: '3.0'