Creation of the image and publication in my docker repository

newgrp docker
docker build . -t ubuntu_flask:1.0.2
docker tag ubuntu_flask:1.0.2 anthonyrouquier/ubuntu_flask:1.0.2
docker push anthonyrouquier/ubuntu_flask:1.0.2

To test and fiddle with the image

docker run -it --name flask ubuntu_flask:1.0.2 (or)
docker run -d --name flask ubuntu_flask:1.0.2 docker exec -it flask bash

Creation and start of the container with docker-compose

docker compose up

deploy application in a cluster

minikube start
kubectl apply -f exo3.yaml

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While I do not have any error while running these commands, I can't get the results whished for. I assume this is due to a mistake in either the set-up of flask or the flask svc, but I was not able to find it.