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| --- | ||
| ########################### | ||
| ########################### | ||
| ## Dockerfile Lint rules ## | ||
| ########################### | ||
| ########################### | ||
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| ################################# | ||
| # Default is 'on' for all rules # | ||
| # You can disable as needed. # | ||
| ################################# | ||
| # Additional Info can be found at: | ||
| # https://github.com/replicatedhq/dockerfilelint | ||
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| # Set the rules | ||
| rules: | ||
| # All commands in a Dockerfile require at least 1 argument | ||
| required_params: on | ||
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| # For clarity and readability, all instructions in | ||
| # a Dockerfile should be uppercase | ||
| uppercase_commands: on | ||
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| # The first instruction in a Dockerfile must specify | ||
| # the base image using a FROM | ||
| from_first: on | ||
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| # This line is not a valid Dockerfile line | ||
| invalid_line: on | ||
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| # Use of sudo is not allowed in a Dockerfile | ||
| sudo_usage: on | ||
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| # Consider using a `--no-install-recommends` when `apt-get` | ||
| # installing packages | ||
| apt-get_missing_param: on | ||
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| # Consider using a `--no-install-recommends` when `apt-get` | ||
| # installing packages | ||
| apt-get_recommends: off | ||
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| # Use of `apt-get upgrade` is not allowed in a Dockerfile | ||
| apt-get-upgrade: on | ||
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| # Use of `apt-get dist-upgrade` is not allowed in a Dockerfile | ||
| apt-get-dist-upgrade: on | ||
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| # All instances of `apt-get update` should have the `apt-get install` | ||
| # commands on the same line to reduce image size | ||
| apt-get-update_require_install: on | ||
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| # Consider using a `--no-cache` (supported in alpine linux >= 3.3) or | ||
| # `--update` followed by the command `rm -rf /var/cache/apk/*` | ||
| # when `apk` adding packages. This will result in a smaller image size | ||
| apkadd-missing_nocache_or_updaterm: on | ||
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| # Consider using a `--virtual` or `-t` switch to group multiple packages | ||
| # for easy cleanup. This will help ensure future authors will continue | ||
| # to clean up build dependencies and other temporary packages | ||
| apkadd-missing-virtual: on | ||
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| # Exposing ports should only be valid port numbers | ||
| invalid_port: on | ||
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| # Only valid commands are allowed in a Dockerfile | ||
| invalid_command: on | ||
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| # Expose Only Container Port | ||
| expose_host_port: on | ||
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| # Using LABEL should be in key=value format | ||
| label_invalid: on | ||
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| # Base images should specify a tag to use | ||
| missing_tag: on | ||
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| # Base images should not use the latest tag | ||
| latest_tag: off | ||
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| # This command has extra arguments and will be ignored | ||
| extra_args: on | ||
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| # This command requires additional arguments | ||
| missing_args: on | ||
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| # All files referenced in an ADD command should | ||
| # be part of the Docker build context | ||
| add_src_invalid: on | ||
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| # When adding multiple files, the destination should be a directory | ||
| add_dest_invalid: on | ||
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| # Using a WORKDIR parameter that has spaces should be escaped | ||
| invalid_workdir: on | ||
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| # The arguments to this command are invalid | ||
| invalid_format: on | ||
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| # Use of apt-get update should be paired with | ||
| # rm -rf /var/lib/apt/lists/* in the same layer | ||
| apt-get_missing_rm: on | ||
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| # This INSTRUCTION is deprecated as of Docker 1.13 | ||
| deprecated_in_1.13: on |
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