Docker image not persersistent

When building a docker image inside a studio, I expect the image to be persistent as it’s described in the FAQ section.

However the docker image is not available anymore after restart so I have to rebuild the image every time the studio starts.

Steps to reproduce:

  1. create a new studio (I’m using a Free Account)

  2. add a dockerfile

    FROM ubuntu:latest
    
    # Set non-interactive mode to prevent prompts
    ENV DEBIAN_FRONTEND=noninteractive
    
    # Update package list and install basic utilities
    RUN apt-get update && apt-get install -y \
        bash \
        curl \
        vim \
        && rm -rf /var/lib/apt/lists/*
    
    # Set default shell
    CMD ["/bin/bash"]
    
  3. build docker image and verify the image is available

    docker build -t my-linux-image .
    docker images
    
  4. restart studio and check if image is still available

    docker images