This is a Docker image for use by Testcontainers' own self-test suites. It is not intended for use outside the Testcontainers project. So releases are published as Docker image to https://hub.docker.com/r/testcontainers/hellworld.
The .github/workflows/publish-docker-image.yml workflow is our primary release workflow,
while preview images are published via .github/workflows/build-docker-image.yml.
The workflows publishing the testcontainers/helloworld Docker image ensure that multiple platforms are supported.
Supported platforms are listed in the "supported-architectures.txt" file. The file is used as reference for
the checks after publishing the multi-arch image.