Load Postgres dump after docker-compose up

Question

I have a dump.sql file that I would like to load with docker-compose.

docker-compose.yml:

services:
  postgres:
    environment:
      POSTGRES_DB: my_d         


        

Answer 1

Reading https://hub.docker.com/_/postgres/, the section 'Extend this image' explains that any .sql in /docker-entrypoint-initdb.d will be executed after build.

I just needed to change my Dockerfile.db to:

FROM postgres

ADD ./devops/db/dummy_dump.sql /docker-entrypoint-initdb.d

And it works!