Starting docker-compose test containers as non-root user

Similar to: https://github.com/testcontainers/testcontainers-java/issues/2590

I'm trying to start our docker-compose based testcontainers tests, and pass in the local username from the running system, in order that the container can write files to mounted volumes with the correct permissions.

I tried a compose with:

version: "3.7"
services:
  myservice:
    image: xxx
    user: ${CURRENT_USER}
    ...
    volumes:
      ./target/:/target

And passed in CURRENT_USER environment variable to testcontainers using:

  env = new DockerComposeContainer(new File("src/main/docker/docker-compose.yml"));
  env.withLocalCompose(true);
  env.withEnv("CURRENT_USER", System.getProperty("user.name"));

However, this fails with:

Cannot start service my server: unable to find user bmiddleton: no matching entries in passwd file

I presume it's looking for that user in the ryuk container, and not the OS - where the user does exist.

How can I get a testcontainers test running from a docker compose file to write its files using the current user of the operating system?

Inizia con la configurazione di DockerComposeContainer usando src/main/docker/docker-compose.yml, includendo withLocalCompose(true) e withEnv("CURRENT_USER", System.getProperty("user.name")). Riproduci il fallimento del test basato su Compose e verifica come vengono gestiti l’utente del servizio Compose e il volume ./target/ montato. Il lavoro è completato quando il servizio può scrivere i file montati con i permessi dell’utente OS corrente senza l’errore di lookup in passwd.