A few questions about OpenReplay deployment from source

Questions & Answers
1

I am new to Ubuntu and therefore much of the documentation is not clear to me, so here is a list of questions on those points that are not clear.

  1. Prerequisites

A) After you install Docker you set a user (user=whoami), how important is this, can I use the user that was created when installing Ubuntu?

  1. Build Backend services

A) docker login <registry_url> . How to get <registry_url>, what is it? The documentation says that it is possible to authorise in Docker without it, but I would like to understand the way of login with the help of URL.

B) DOCKER_REPO=index.docker.io/ I have an account at hub.docker.com, should I use that account name as a replacement for ?

С) After the bash build.sh command has been executed, what should a successful completion of this command look like, what should be output to the terminal?

  1. Updates Images

A) MY_CONTAINER_REGISTRY_USERNAME should be replaced by my account name in hub.docker.com, right?

B) docker-email= should be replaced with the email address in the docker hub, right?

  1. Build and deploy frontend
    A) How to get myDockerHubID? Is this the same as the name of my account in the Docker hub?