docker, gitlab ci/cd, loadtest, grafana

i have a docker, k6 loadtest, grafana and prometheus set up but as i am new in docker i am getiing some error. to build my project i am following "https://medium.com/@rody.bothe/turning-data-into-understandable-insights-with-k6-load-testing-fa24e326e221" and also deploy it to gitlab ci/cd pipeline
i am facing some getting metric issues. we will share vs code and i will also help so solve it.