Question: Can I cache a docker image

What are you trying to do?

I have a docker image which is based on postgres, but contains
additional some (large) *.sql files in /docker-entrypoint-initdb.d/ .

When the docker container is started, it will import the sql files.
This will delay the startup time until I can access the docker image for testing.

I assume that when I use testcontainers it is similiar to the call

docker run --rm

in the sense, that after the container was used, it is thrown away.

Is it possible to tell testcontainers to cache the container, so the next time I use that image the
database is already initialized?

Commencez par examiner le cycle de vie des conteneurs Testcontainers et le comportement de Docker impliqué par docker run --rm, en particulier l’initialisation de PostgreSQL depuis /docker-entrypoint-initdb.d/. Déterminez si la réutilisation ou la mise en cache est prise en charge, puis documentez le comportement pris en charge ou l’étendue nécessaire pour un conteneur initialisé pouvant être mis en cache.