Today I learned@Cybertec

Posts tagged "docker-compose"

docker-compose for postgres with db init script

Single script

postgres:
  image: postgres
  volumes:
    - ./init.sql:/docker-entrypoint-initdb.d/init.sql

Multiple scripts

Multiple scripts run in alphabetical order, thus it's good practice to prefix them with a number.

volumes:
  - ./schema.sql:/docker-entrypoint-initdb.d/1-schema.sql
  - ./data.sql:/docker-entrypoint-initdb.d/2-data.sql

Directory containing scripts

volumes:
  - ./init-scripts:/docker-entrypoint-initdb.d

Use multiple files for docker-compose config

You can specify one or multiple config files for docker-compose with the -f flag:

# one file
docker-compose -f docker-compose.yml up -d
# multiple files
docker-compose -f docker-compose.yml -f docker-compose.tests.yml up -d

Be sure to specify the config files before the sub-command:

# invalid
docker-compose ps -f docker-compose.yml
# valid
docker-compose -f docker-compose.yml ps