16 lines
535 B
Markdown
16 lines
535 B
Markdown
---
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title: "Shell usage in dockerfile"
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linkTitle: "Shell usage in dockerfile"
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date: 2019-02-04
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description: >
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How to use a proper shell in a dockerfile
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---
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The default shell is `[“/bin/sh”, “-c”]`, which doesn't handle pipe fails when chaining commands. To process errors when using pipes use this :
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{{< highlight sh >}}
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SHELL ["/bin/bash", "-eux", "-o", "pipefail", "-c"]
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{{< /highlight >}}
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## References
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- https://bearstech.com/societe/blog/securiser-et-optimiser-notre-liste-des-bonnes-pratiques-liees-aux-dockerfiles/
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