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https://issues.apache.org/jira/browse/NUTCH-3213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18116989#comment-18116989
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ASF GitHub Bot commented on NUTCH-3213:
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lewismc opened a new pull request, #968:
URL: https://github.com/apache/nutch/pull/968
Fixes [NUTCH-3213](https://issues.apache.org/jira/browse/NUTCH-3213) which
provides a comprehensive description of the proposed improvements.
> Harden Docker image: non-root USER and Dockerfile lint (SonarCloud)
> -------------------------------------------------------------------
>
> Key: NUTCH-3213
> URL: https://issues.apache.org/jira/browse/NUTCH-3213
> Project: Nutch
> Issue Type: Improvement
> Components: docker
> Affects Versions: 1.23
> Reporter: Lewis John McGibbney
> Assignee: Lewis John McGibbney
> Priority: Major
> Fix For: 1.24
>
>
> SonarCloud Docker analysis of docker/Dockerfile reports 8 OPEN issues
> (visible on PR analysis after docker was added to sonar.sources). They are
> independent of NUTCH-3130.
> *Security*
> * docker:S6471: alpine defaults to root; no USER instruction. CWE-250. The
> image CMD is /bin/bash and nutch/crawl are on PATH as root. docker/README.md
> already recommends a dedicated low-privilege user.
> *Maintainability*
> * docker:S6595: RUN apk update is a separate layer (stale/index bloat).
> * docker:S7031: consecutive RUN instructions (apk, rc files, clone, ln).
> * docker:S6570: unquoted $HOME and $NUTCH_HOME (word-splitting/globbing).
> *Proposed fix*
> * Single RUN: apk --no-cache add (no standalone apk update), create nutch
> user/group, clone+ant runtime, symlinks, chown.
> * Quote all shell variable expansions.
> * USER nutch before CMD. Move install prefix off /root (e.g. /opt/nutch) so
> NUTCH_HOME is owned by the runtime user. Document the path change in
> docker/README.md (breaking for anyone mounting /root/nutch_source).
> * Keep ENV JAVA_HOME; drop redundant .bashrc/.ashrc writes or write a quoted
> /etc/profile.d snippet during the same RUN.
> See:
> https://sonarcloud.io/project/issues?id=apache_nutch&pullRequest=967
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