Remove intentionally-breaking "data" symlink and add better detection#1372
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yosifkit merged 1 commit intodocker-library:masterfrom Oct 22, 2025
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This allows for a more graceful error message for the case of users who need to update their volume path. I tested this with 17 and `--env PGDATA=/var/lib/postgresql/17/docker` (to make sure it still works fine and doesn't complain about the extra volume provided by Docker/`VOLUME`) and 18 with `-v /var/lib/postgresql/data` (where it appropriately errors and explains to me what I should be doing instead). I also did a reflow on some text in the error message that's designed to fit in 80 columns but was taking 81. 😂
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Changes: - docker-library/postgres@2398775: Merge pull request docker-library/postgres#1372 from infosiftr/more-graceful-error - docker-library/postgres@5ec8931: Remove intentionally-breaking "data" symlink and add better detection
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Changes: - docker-library/postgres@2398775: Merge pull request docker-library/postgres#1372 from infosiftr/more-graceful-error - docker-library/postgres@5ec8931: Remove intentionally-breaking "data" symlink and add better detection Co-authored-by: Docker Library Bot <doi+docker-library-bot@docker.com>
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Changes: - docker-library/postgres@2398775: Merge pull request docker-library/postgres#1372 from infosiftr/more-graceful-error - docker-library/postgres@5ec8931: Remove intentionally-breaking "data" symlink and add better detection Co-authored-by: Docker Library Bot <doi+docker-library-bot@docker.com>
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Changes: - docker-library/postgres@2398775: Merge pull request docker-library/postgres#1372 from infosiftr/more-graceful-error - docker-library/postgres@5ec8931: Remove intentionally-breaking "data" symlink and add better detection Co-authored-by: Docker Library Bot <doi+docker-library-bot@docker.com>
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This allows for a more graceful error message for the case of users who need to update their volume path.
I tested this with 17 and
--env PGDATA=/var/lib/postgresql/17/docker(to make sure it still works fine and doesn't complain about the extra volume provided by Docker/VOLUME) and 18 with-v /var/lib/postgresql/data(where it appropriately errors and explains to me what I should be doing instead).I also did a reflow on some text in the error message that's designed to fit in 80 columns but was taking 81. 😂
Closes #1363
Closes #1364
Closes #1370
See also:
PGDATAin 18+ to/var/lib/postgresql/MAJOR/docker#1259(I was initially hesitant to implement this because I thought the implementation would be bigger, but we already had most of the scaffolding so it was really trivial.)