How to link PostgreSQL container and PgAdmin in Docker? - docker

Question

I have a docker-compose file with postgres and pgadmin services in my Laravel project. The problem is that when I do the database migration, it succeeds, but when I go to pgadmin, I do not see the tables I created there. I guess I, as always, made a mistake while writing docker-compose and I just can't find what I was missing.
version: '3'
services:
#PHP Service
app:
build:
context: .
dockerfile: Dockerfile
image: digitalocean.com/php
container_name: app
restart: unless-stopped
tty: true
environment:
SERVICE_NAME: app
SERVICE_TAGS: dev
working_dir: /var/www
volumes:
- ./:/var/www
- ./docker/php/local.ini:/usr/local/etc/php/conf.d/local.ini
networks:
- postgres
#Nginx Service
webserver:
image: nginx:alpine
container_name: webserver
restart: unless-stopped
tty: true
ports:
- "80:80"
- "443:443"
volumes:
- ./:/var/www
- ./docker/nginx/conf.d/:/etc/nginx/conf.d/
networks:
- postgres
#Redis
redis:
image: 'redis:alpine'
ports:
- "6379:6379"
#PostgreSQL
postgres:
container_name: postgres_container
image: postgres
environment:
POSTGRES_DB: postgres
POSTGRES_USER: postgres
POSTGRES_PASSWORD: secret
PGDATA: /data/postgres
volumes:
- postgres:/data/postgres
ports:
- "5432:5432"
networks:
- postgres
restart: unless-stopped
pgadmin:
container_name: pgadmin_container
image: dpage/pgadmin4
environment:
PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL:-pgadmin4#pgadmin.org}
PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD:-admin}
volumes:
- pgadmin:/root/.pgadmin
ports:
- "${PGADMIN_PORT:-5050}:80"
networks:
- postgres
restart: unless-stopped
#RabbitMQ
rabbit:
image: "rabbitmq:3-management"
hostname: "rabbit"
environment:
RABBITMQ_ERLANG_COOKIE: "SWQOKODSQALRPCLNMEQG"
RABBITMQ_DEFAULT_USER: "rabbitmq"
RABBITMQ_DEFAULT_PASS: "rabbitmq"
RABBITMQ_DEFAULT_VHOST: "/"
ports:
- "15672:15672"
- "5672:5672"
labels:
NAME: "rabbitmq"
#ElasticSearch
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:5.4.3
ports:
- "9200:9200"
- "9300:9300"
networks:
- postgres
#Docker Networks
networks:
postgres:
driver: bridge
volumes:
postgres:
pgadmin:

Answer 1

In pgAdmin, when you add a new server, you need to define "host.docker.internal" (when on Windows) as Host (How to add a new server).