[REQ] Add support for Linux Group creation and user assignment

[jagpreetstamber]

What kind of request is this?

New feature

What is your request or suggestion?

Many of the opensource project in the docker builds create a group and assign the runtime user to that group. e.g.

From Argo CD:

RUN groupadd -g $ARGOCD_USER_ID argocd && \
    useradd -r -u $ARGOCD_USER_ID -g argocd argocd && \
    mkdir -p /home/argocd && \
    chown argocd:0 /home/argocd && \
    chmod g=u /home/argocd && \

From HA Proxy:

RUN set -eux; \
	groupadd --gid 99 --system haproxy; \
	useradd \
		--gid haproxy \
		--home-dir /var/lib/haproxy \
		--no-create-home \
		--system \
		--uid 99 \
		haproxy 

These groups are used to assign permissions to certain folders. Adding inherent capability in the DALEC will ease onboarding of such opesource project.

Are you willing to submit PRs to contribute to this feature request?

• Yes, I am willing to implement it.