Populate a database with TestContainers in a SpringBoot integration test

Question

I am testing TestContainers and I would like to know how to populate a database executing a .sql file to create the structure and add some rows.

How to do it?

Answer 1

There is one more option, if you are defining Postgres container manually without fancy testcontainers JDBC url stuff, not related to Spring directly. Postgres image allows to link directory containing sql scripts to container volume and auto-executes them.

GenericContainer pgDb = new PostgreSQLContainer("postgres:9.4-alpine")
  .withFileSystemBind("migrations/sqls", "/docker-entrypoint-initdb.d",
    BindMode.READ_ONLY)

Also if you need something in runtime, you can always do pgDb.execInContainer("psql ....").