Warning this is an experimental buildpack and is provided as-is without any promise of support.

Heroku CI buildpack: Postgresql

This experimental Heroku buildpack vendors Postgresql into the dyno. It is intended for use with Heroku CI or any other environment where data retention is not important.

Please note that Postgresql will lose all data each time a dyno restarts.

Usage

This is intended to be transparent to your application. Connect to the database in the same way as you would for Heroku Postgresql by reading the value of the DATABASE_URL environment variable into your application.

By default, the buildpack provides the latest Postgres version that is generally available on Heroku. You can specify a POSTGRESQL_VERSION in the env section of your app.json to use a different major (e.g., "10" or "9.6") version. This feature is experimental and subject to change.

PostgreSQL fsync

If you want to turn off fsync during your test, you can set HEROKU_CI_POSTGRES_FSYNC_OFF in your app.json env section.

heroku_ext extension schema

By default, this buildpack will create the heroku_ext schema to better reflect production databases.

To disable this, you can set HEROKU_CI_POSTGRES_HEROKU_EXT_OFF in your app.json env section.

Releasing a new version

Follow the playbook.