docker- compose.yml
version: "3.3"
services:
db:
image: postgres
environment:
- POSTGRES_DB=postgres
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
# - POSTGRES_HOST_AUTH_METHOD="trust"
- POSTGRES_PORT=5432
ports:
- "5432:5432"
pgadmin:
image: dpage/pgadmin4
depends_on:
- db
ports:
- "5051:80"
environment:
PGADMIN_DEFAULT_EMAIL: pgadmin4@pgadmin4.com
PGADMIN_DEFAULT_PASSWORD: pgadmin4
restart: always
web:
build: .
command: python manage.py runserver 0.0.0.0:8000
ports:
- "8000:8000"
links:
- db:db
depends_on:
- db
settings.py
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql',
'NAME': 'postgres',
'USER': 'postgres',
'PASSWORD': 'postgres',
'HOST': 'db',
'PORT': 5432,
}
}
Error while executing python3 manage.py makemigrations:
django.db.utils.OperationalError: could not translate host name “db” to address: Temporary failure in name resolution
I tried adding - POSTGRES_HOST_AUTH_METHOD="trust" however the error remained.
I also tried changing 'HOST': 'db' to 'HOST': 'localhost' and then I can run the make migrations but I get this error:
Is the server running on host “localhost” (::1) and accepting TCP/IP connections on port 5432?
I saw many similar questions but none of the answers seems to fix the problem. Any suggestions according to my docker-compose and setting?