Reliable container cleanup and identification of Testcontainers-created containers

[Seayon]

Hey guys!

I have two main concerns regarding Testcontainers:

1. Container Cleanup Reliability:
   Is it possible to guarantee 100% automatic closure of containers created by Testcontainers? If not, what are the scenarios where containers might be left running?

2. Identifying Testcontainers-Created Containers:
   In case automatic cleanup isn't fully reliable, I'm considering implementing a maintenance job to automatically close containers that have been running beyond a certain threshold. To achieve this, I need a reliable way to identify which containers were created by Testcontainers.

   My initial thought was to use container names for identification. Is there a standardized naming convention or prefix for Testcontainers-created containers? If not, would it be possible to implement such a feature?

Questions:

1. What is the current reliability of Testcontainers' automatic container cleanup?
2. Are there any existing mechanisms to uniquely identify Testcontainers-created containers?
3. If not, would the community consider implementing a configurable naming convention or tagging system for Testcontainers-created containers to facilitate easier identification and management?

Any insights or suggestions on these topics would be greatly appreciated. Thank you for your time and consideration.