This image is extend from postgresql image. It contains postgresql-plr module.
How to use this image
start a postgres instance
docker run --name some-postgres -e POSTGRES_PASSWORD=mysecretpassword -d talat/postgresql-plr
This image includes EXPOSE 5432 (the postgres port), so standard container linking will make it automatically available to the linked containers. The default postgres user and database are created in the entrypoint with initdb.
The postgres database is a default database meant for use by users, utilities and third party applications. postgresql.org/docs
connect to it from an application
docker run --name some-app --link some-postgres:postgres -d application-that-uses-postgres
… or via psql
docker run -it --link some-postgres:postgres --rm postgres sh -c 'exec psql -h "$POSTGRES_PORT_5432_TCP_ADDR" -p "$POSTGRES_PORT_5432_TCP_PORT" -U postgres'
The PostgreSQL image uses several environment variables which are easy to miss. While none of the variables are required, they may significantly aid you in using the image.
This environment variable is recommend for you to use the PostgreSQL image. This environment variable sets the superuser password for PostgreSQL. The default superuser is defined by the POSTGRES_USER environment variable. In the above example, it is being set to “mysecretpassword”.
This optional environment variable is used in conjunction with POSTGRES_PASSWORD to set a user and its password. This varible will create the specified user with superuser power and a database with the same name. If it is not specified, then the default user of postgres will be used.