Add more defensive mkdir for GEM_HOME
#463
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whalelines
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Jun 25, 2024
| # adjust permissions of a few directories for running "gem install" as an arbitrary user | ||
| RUN mkdir -p "$GEM_HOME" && chmod 1777 "$GEM_HOME" | ||
| RUN set -eux; \ | ||
| mkdir "$GEM_HOME"; \ |
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Do we expect all parent directories of $GEM_HOME to exist? Removing the -p causes mkdir to fail if the directory already exists, which is desireable, but it also means parent directories are not automatically created, which would be bad if all of $GEM_HOME's parent directory do not exist in the image layers prior to this RUN command.
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It looks like all the Dockerfiles have a mkdir -p /usr/local/etc in a previous RUN statement, so this should be good.
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Indeed, and Ruby itself ends up in /usr/local via make install
whalelines
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Jun 25, 2024
yosifkit
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Jun 25, 2024
LaurentGoderre
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Jun 26, 2024
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Jun 28, 2024
Changes: - docker-library/ruby@c069afc: Merge pull request docker-library/ruby#463 from infosiftr/mkdir-gem-home - docker-library/ruby@f69cac9: Add more defensive `mkdir` for `GEM_HOME`
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Jul 9, 2024
Changes: - docker-library/ruby@2e432fc: Update 3.3 to 3.3.4 - docker-library/ruby@c069afc: Merge pull request docker-library/ruby#463 from infosiftr/mkdir-gem-home - docker-library/ruby@f69cac9: Add more defensive `mkdir` for `GEM_HOME`
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This drops the
-pargument inmkdir -p "$GEM_HOME"to ensure that this validates our assumption that ourGEM_HOMEdid not exist before this line and is indeed created (as a new, empty directory) by this line.cc @whalelines (whose idea validating better this was)