So this may sound pretty usual for many of us, however, I have been banging my head against it for almost a week now.
This is what I’m trying to achieve with a docker-compose.yaml file
version: '3.6'
networks:
network:
driver: bridge
services:
webapp:
build: .
container_name: djangoapp
hostname: djangoapp
networks:
- network
volumes:
- "${pwd}/code:/djangoapp/code"
ports:
- 8000:8000
depends_on:
- db
db:
container_name: psqldb
hostname: psqldb
networks:
- network
image: postgres:latest
restart: always
environment:
POSTGRES_DB: djangoapp_web
POSTGRES_USER: django
POSTGRES_PASSWORD: django_password
healthcheck:
test: ['CMD-SHELL', 'pg_isready -U postgres']
interval: 10s
timeout: 5s
retries: 5
Also, I do have a Dockerfile, which seems to be doing installation and configuration file with ubuntu:latest just fine.
My Django app is configured to use database from 5432 as shown below (pardon my illustration)
postgresql/5432 → django test server/8000
Problem is coming when Django app tries to contact database on other container, which is going on different network and not accessible.
(narender)-(~/code) → docker inspect 5e3480b46fb7 bf31406f1ecc -f “{{json .NetworkSettings.Networks }}”
{“bridge”:{“IPAMConfig”:null,“Links”:null,“Aliases”:null,“NetworkID”:“6cb7688e01d3d44503d1ac72b082dcca233fe5459d5bf7c4baafbb6455688af0”,“EndpointID”:“05a033e46c68023c3cf01a4f877857932248c4cacdde4b1b3d4be4c1c07e6711”,“Gateway”:“172.17.0.1”,“IPAddress”:“172.17.0.2”,“IPPrefixLen”:16,“IPv6Gateway”:“”,“GlobalIPv6Address”:“”,“GlobalIPv6PrefixLen”:0,“MacAddress”:“02:42:ac:11:00:02”,“DriverOpts”:null}}
{“phai_network”:{“IPAMConfig”:null,“Links”:null,“Aliases”:[“db”,“bf31406f1ecc”],“NetworkID”:“512c49f24c97049809891ec0edfacae7c85e37edde1540b4aa57dc39b48d8dbd”,“EndpointID”:“6886d6d62644d85c19504e0a39e84c3c0b0b52a5e87b7d7b182f4bc59032bc57”,“Gateway”:“172.18.0.1”,“IPAddress”:“172.18.0.2”,“IPPrefixLen”:16,“IPv6Gateway”:“”,“GlobalIPv6Address”:“”,“GlobalIPv6PrefixLen”:0,“MacAddress”:“02:42:ac:12:00:02”,“DriverOpts”:null}}
Notice that the both the networks are different (highlighted in bold).
I have no clue, why its happening. Any guidance would be highly appreciated.
Thanks.