Step 4 under 03-image-analysis.md - docker rm can't run because Step 2 starts the container in the foreground

[ajeetraina]

In the "Exploring the app" section, Step 2 runs the container in the foreground (no -d flag), which holds the terminal. As a result, Step 4's docker rm -f dhi-demo-app can never be executed in the same terminal, the learner types it, but the shell never processes it because docker run is still attached.

Actual behavior

The docker run process stays attached in the foreground, so Step 4 is only echoed as input and never runs:

coder@992f96951343:~/project$ docker run -p 3050:3000 --name dhi-demo-app demo-node-doi:v1
Server listening on port 3000

docker rm -f dhi-demo-app        # typed by the learner, but never executes — run is attached

The learner is stuck with a blocked terminal and an un-removed container.

Proposed fix

Run the container detached in Step 2 so the terminal stays free and Step 4 works as written:

docker run -d -p 3050:3000 --name dhi-demo-app demo-node-doi:v1

Optionally add a note after Step 2 so learners can still see the startup log:

docker logs dhi-demo-app