PostgreSQL – Docker Postgres is not running the init file in docker-entrypoint-initdb.d

web:
 restart: always
 build: ./web
 expose:
-"8000"
 links:
-postgres:postgres
 volumes:
 -/usr/src/app/static
 env_file: .env
 command: /usr/local/bin/gunicorn ronda.wsgi:application -w 2 -b :8000

nginx:
 restart: always
 build: ./nginx/
 ports:
-"80:80"
 volumes:
-/www/ static
 volumes_from:
-web
 links:
-web:web

postgres:
 restart: always
 build: ./postgres/
 volumes_from:
-data
 ports:
-"5432:5432"

data:
 restart: always< br /> build: ./postgres/
 volumes:
-/var/lib/postgresql
 command: "true"

FROM library/postgres

RUN mkdir -p /docker-entrypoint-initdb.d
COPY init.sql /docker -entrypoint-initdb.d/

postgres:
 restart: always
 build: ./postgres/
 volumes_from:
- data
 ports:
-"5432:5432"
 environment:
 POSTGRES_DB: ronda

Based on Docker’s Postgres documentation, I can find Create any *.sql file in /docker-entrypoint-initdb.d and let it run automatically.

I have init.sql contains CREATE DATABASE ronda;

In my In the docker-compose.yaml, I have

web:
 restart: always
 build: ./web
 expose:
-"8000"
 links:
-postg res:postgres
 volumes:
-/usr/src/app/static
 env_file: .env
 command: /usr/local/bin/gunicorn ronda.wsgi:application- w 2 -b :8000

nginx:
 restart: always
 build: ./nginx/
 ports:
-"80:80"< br /> volumes:
-/www/static
 volumes_from:
-web
 links:
-web:web

postgres: 
 restart: always
 build: ./postgres/
 volumes_from:
-data
 ports:
-"5432:5432"
< br />data:
 restart: always
 build: ./postgres/
 volumes:
-/var/lib/postgresql
 command: "true" 
and my postgres Dockerfile,
 
 
FROM library/postgres

RUN mkdir -p /docker-entrypoint-initdb.d< br />COPY init.sql /docker-entrypoint-initdb.d/
Running docker-compose build and docker-compose works normally, but the database ronda is not created.

< p>
If the initialization requirement is only to create the ronda mode, then you can use the POSTGRES_DB environment variable described in 07GR.
Bit of the docker-compose.yml file of the postgres service Will be: 
postgres:
 restart: always
 build: ./postgres/
 volumes_from:
-data
 ports:< br />-"5432:5432"
 environment:
 POSTGRES_DB: ronda
In addition, do not use restart: always for your data container, because this container does not run any services (just true command). This basically tells Docker to run the true command in an infinite loop.