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# Using multiple databases with the official PostgreSQL Docker image # Using multiple databases with the official PostgreSQL Docker image
This fork merges [heliocastro:user_pass_improvements](https://github.com/heliocastro/docker-postgresql-multiple-databases/tree/user_pass_improvement) This fork merges [heliocastro:user_pass_improvements](https://github.com/heliocastro/docker-postgresql-multiple-databases/tree/user_pass_improvement) with some slight tweaks to keep the user name the same as the database name.
The [official recommendation](https://hub.docker.com/_/postgres/) for creating The [official recommendation](https://hub.docker.com/_/postgres/) for creating
multiple databases is as follows: multiple databases is as follows:
*If you would like to do additional initialization in an image derived from > If you would like to do additional initialization in an image derived from
this one, add one or more `*.sql`, `*.sql.gz`, or `*.sh` scripts under > this one, add one or more `*.sql`, `*.sql.gz`, or `*.sh` scripts under
`/docker-entrypoint-initdb.d` (creating the directory if necessary). After the > `/docker-entrypoint-initdb.d` (creating the directory if necessary). After the
entrypoint calls `initdb` to create the default `postgres` user and database, > entrypoint calls `initdb` to create the default `postgres` user and database,
it will run any `*.sql` files and source any `*.sh` scripts found in that > it will run any `*.sql` files and source any `*.sh` scripts found in that
directory to do further initialization before starting the service.* > directory to do further initialization before starting the service.
This directory contains a script to create multiple databases using that This directory contains a script to create multiple databases using that
mechanism. mechanism.
@ -28,7 +28,7 @@ Clone the repository, mount its directory as a volume into
volumes: volumes:
- ../docker-postgresql-multiple-databases:/docker-entrypoint-initdb.d - ../docker-postgresql-multiple-databases:/docker-entrypoint-initdb.d
environment: environment:
- POSTGRES_MULTIPLE_DATABASES=db1:user:pwd,db2:user:pwd - POSTGRES_MULTIPLE_DATABASES=db1:pwd1,db2:pwd2
- POSTGRES_USER=myapp - POSTGRES_USER=myapp
- POSTGRES_PASSWORD= - POSTGRES_PASSWORD=
- POSTGRES_DB=db - POSTGRES_DB=db
@ -47,7 +47,7 @@ to the container:
myapp-postgresql: myapp-postgresql:
image: eu.gcr.io/your-project/postgres-multi-db image: eu.gcr.io/your-project/postgres-multi-db
environment: environment:
- POSTGRES_MULTIPLE_DATABASES=db1,db2 - POSTGRES_MULTIPLE_DATABASES=db1:pwd1,db2:pwd2
- POSTGRES_USER=myapp - POSTGRES_USER=myapp
- POSTGRES_PASSWORD= - POSTGRES_PASSWORD=
- POSTGRES_DB=db - POSTGRES_DB=db
@ -57,4 +57,4 @@ to the container:
If you need to use non-standard database names (hyphens, uppercase letters etc), quote them in `POSTGRES_MULTIPLE_DATABASES`: If you need to use non-standard database names (hyphens, uppercase letters etc), quote them in `POSTGRES_MULTIPLE_DATABASES`:
environment: environment:
- POSTGRES_MULTIPLE_DATABASES="test-db-1:user:pwd","test-db-2:user:pwd" - POSTGRES_MULTIPLE_DATABASES="test-db-1:pwd1","test-db-2:pwd2"