hadolint

Dockerfile linter.

TLDR

Lint a Dockerfile

$ hadolint [path/to/Dockerfile]
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Lint a Dockerfile, displaying the output in JSON format
$ hadolint --format [json] [path/to/Dockerfile]
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Lint a Dockerfile, displaying the output in a specific format
$ hadolint --format [tty|json|checkstyle|codeclimate|codacy] [path/to/Dockerfile]
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Lint a Dockerfile ignoring specific rules
$ hadolint --ignore [DL3006] --ignore [DL3008] [path/to/Dockerfile]
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Lint multiple Dockerfiles using specific trusted registries
$ hadolint --trusted-registry [docker.io] --trusted-registry [example.com]:[5000] [path/to/Dockerfile] [path/to/another/Dockerfile]
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