#3 - Walking Skeleton - Use PostgreSQL as database

In this issue we will continue to configure our walking skeleton by preparing our application to use Postgres as our main database engine. The video includes in particular:

• spin up PostgreSQL as our local database via docker compose
• connect to PostgreSQL through IntelliJ IDEA
• configure the Jmix version to use the local database for local development
• explain the workflow of Liquibase changelogs applied to local PostgreSQL
• configure the GitHub Action CI pipeline to spin up PostgreSQL as a service
• configure Jmix to retrieve DB connection information via environment variables