Dockerfile Rootless RPMs

README.md

1. Save the Dockerfile locally
2. Build docker image: docker build -t rootlessrpms .
3. Have some NodeJS code ready to run

• eg: git clone github.com/nodeshift-starters/nodejs-health-check

4. Run the image: docker run -ti --rm -v $(pwd)/nodejs-health-check:/code -p 8080:8080 rootlessrpms

Dockerfile

FROM registry.access.redhat.com/ubi8/ubi:latest

RUN dnf install -y cpio yum-utils

RUN useradd -ms /bin/bash notroot

RUN ln -s /home/notroot/pkgs/usr/bin/node /usr/bin/node ; \
    ln -s /home/notroot/pkgs/usr/bin/npm /usr/bin/npm ; \
    ln -s /home/notroot/pkgs/usr/bin/npx /usr/bin/npx

USER notroot

WORKDIR /home/notroot

RUN yumdownloader --resolve --destdir ~/rpms/ nodejs ; \
    for f in ~/rpms/*.rpm; do rpm2cpio $f | cpio -D ~/pkgs -idmv; done

# The lines below are not relevant
# They are just there to demonstrate that the above actually works

WORKDIR /code

CMD [ "bash", "-c", "npm install ; npm start" ]