Offer an all-in-one container image for easier testing and demonstration

[nscuro]

Current Behavior

Hyades consists of multiple services, each of which are currently distributed as individual container images:

• PostgreSQL
• Kafka
• API server
• Frontend
• Mirror Service
• Notification Publisher
• Repository Meta Analyzer
• Vulnerability Analyzer

While this provides deployment flexibility, it makes it harder to quickly get something up-and-running.

Users wishing to build and test integrations with the system would benefit from having a single container instead, which they then can integrate with testcontainers.

For demonstration purposes, spinning up a single container is much more straightforward than having to setup a Docker Compose or Minikube environment.

Proposed Behavior

Provide a container image that contains all necessary services.

The services should be configured with a minimal resource footprint, such that the container can be run in CI environments, and normal laptops. For this reason, we will probably want to package native executables instead of JARs where possible.

Starting the image without additional configuration should "just work".

The image must not contain any software that is licensed under non-OSI compliant licenses, such as Redpanda, which is BUSL-licensed.

It needs to be made clear that the image is not intended for production use.

Checklist

• I have read and understand the contributing guidelines
• I have checked the existing issues for whether this enhancement was already requested