dockerlint.rules

profile:
  name: Default
  description: Default Profile. Checks basic syntax.
  includes: null
general:
  ref_url_base: "https://docs.docker.com/engine/reference/builder/"
  valid_instructions:
    - FROM
    - MAINTAINER
    - RUN
    - CMD
    - LABEL
    - EXPOSE
    - ENV
    - ADD
    - COPY
    - ENTRYPOINT
    - VOLUME
    - USER
    - WORKDIR
    - ONBUILD
    - ARG
    - STOPSIGNAL
    - HEALTHCHECK
    - SHELL
  ignore_regex: "/^#/"
  multiline_regex: "/\\\\$/"
line_rules:
  ARG:
    paramSyntaxRegex: /.+/
    rules: []
  FROM:
    paramSyntaxRegex: "/^[\\w./\\-:]+(:[\\w.]+)?(-[\\w.]+)?$/"
    rules:
      - label: is_latest_tag
        regex: /latest/
        level: error
        message: "base image uses 'latest' tag"
        description: "using the 'latest' tag may cause unpredictable builds. It is recommended that a specific tag is used in the FROM line or *-released which is the latest supported release."
        reference_url:
          - "https://docs.docker.com/engine/reference/builder/"
          - "#from"
      - label: no_tag
        regex: "/^[:]/"
        level: error
        message: No tag is used
        description: lorem ipsum tar
        reference_url:
          - "https://docs.docker.com/engine/reference/builder/"
          - "#from"
  HEALTHCHECK:
    paramSyntaxRegex: /.+/
    rules: []
  MAINTAINER:
    paramSyntaxRegex: /.+/
    rules: []
  RUN:
    paramSyntaxRegex: /.+/
    rules:
      - label: no_yum_clean_all
        regex: "/yum(?!.+clean all|.+\\.repo|-config|\\.conf)/"
        level: warn
        message: yum clean all is not used
        description: the yum cache will remain in this layer making the layer unnecessarily large
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _clear_packaging_caches_and_temporary_package_downloads
      - label: yum_update_all
        regex: "/yum(.+update all|.+upgrade|.+update)/"
        level: info
        message: updating the entire base image may add unnecessary size to the container
        description: update the entire base image may add unnecessary size to the container
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _clear_packaging_caches_and_temporary_package_downloads
      - label: no_dnf_clean_all
        regex: "/dnf(?!.+clean all|.+\\.repo)/g"
        level: warn
        message: dnf clean all is not used
        description: the dnf cache will remain in this layer making the layer unnecessarily large
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _clear_packaging_caches_and_temporary_package_downloads
      - label: no_rvm_cleanup_all
        regex: "/rvm install(?!.+cleanup all)/g"
        level: warn
        message: rvm cleanup is not used
        description: the rvm cache will remain in this layer making the layer unnecessarily large
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _clear_packaging_caches_and_temporary_package_downloads
      - label: no_gem_clean_all
        regex: "/gem install(?!.+cleanup|.+\\rvm cleanup all)/g"
        level: warn
        message: gem cleanup all is not used
        description: the gem cache will remain in this layer making the layer unnecessarily large
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _clear_packaging_caches_and_temporary_package_downloads
      - label: no_apt-get_clean
        regex: "/apt-get install(?!.+clean)/g"
        level: info
        message: apt-get clean is not used
        description: the apt-get cache will remain in this layer making the layer unnecessarily large
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _clear_packaging_caches_and_temporary_package_downloads
      - label: privileged_run_container
        regex: /privileged/
        level: warn
        message: a privileged run container is allowed access to host devices
        description: Does this run need to be privileged?
        reference_url:
          - "http://docs.docker.com/engine/reference/run/#"
          - runtime-privilege-and-linux-capabilities
      - label: installing_ssh
        regex: /openssh-server/
        level: warn
        message: installing SSH in a container is not recommended
        description: Do you really need SSH in this image?
        reference_url: "https://github.com/jpetazzo/nsenter"
      - label: no_ampersand_usage
        regex: / ; /
        level: info
        message: "using ; instead of &&"
        description: "RUN do_1 && do_2: The ampersands change the resulting evaluation into do_1 and then do_2 only if do_1 was successful."
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - "#_using_semi_colons_vs_double_ampersands"
  SHELL:
    paramSyntaxRegex: /.+/
    rules: []
  CMD:
    paramSyntaxRegex: /.+/
    rules: []
  LABEL:
    paramSyntaxRegex: /.+/
    rules: []
    defined_namevals:
      Name:
        valueRegex: "/[\\w]+/"
        message: "Label 'Name' is missing or has invalid format"
        level: warn
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
      Version:
        valueRegex: "/[\\w.${}()\"'\\\\\\/~<>\\-?\\%:]+/"
        message: "Label 'Version' is missing or has invalid format"
        level: warn
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
      Release:
        valueRegex: "/[\\w.${}()\"'\\\\\\/~<>\\-?\\%:]+/"
        message: "Label 'Release' is missing or has invalid format"
        level: warn
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
      Architecture:
        valueRegex: "/[\\w]*[6,8][4,6]|[.]*86[.]*64/"
        message: "Label 'Architecture' is missing or has invalid format: x86, i386, x86_64"
        level: info
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
      Vendor:
        valueRegex: "/([\\w]+).+/"
        message: "Label 'Vendor' is missing or has invalid format"
        level: warn
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
      Url:
        valueRegex: "/([\\w]+).+/"
        message: "Label 'Url' is missing or has invalid format"
        level: warn
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
      Help:
        valueRegex: "/([\\w]+).+/"
        message: "Label 'Help' is missing or has invalid format"
        level: warn
        required: false
        reference_url:
          - "http://docs.projectatomic.io/container-best-practices/#"
          - _recommended_labels_for_your_project
  EXPOSE:
    paramSyntaxRegex: "/^[\\d-\\s\\w/\\\\]+$/"
    rules: []
  ENV:
    paramSyntaxRegex: "/^[\\w-$/\\\\=\\\"[\\]{}@:,'`\\t. ]+$/"
    rules: []
  ADD:
    paramSyntaxRegex: "/^~?([\\w-.~:/?#\\[\\]\\\\\\/*@!$&'()*+,;=.{}\"]+[\\s]*)+$/"
  COPY:
    paramSyntaxRegex: /.+/
    rules: []
  ENTRYPOINT:
    paramSyntaxRegex: /.+/
    rules: []
  VOLUME:
    paramSyntaxRegex: /.+/
    rules: []
  USER:
    paramSyntaxRegex: "/^[a-z0-9_][a-z0-9_-]{0,40}$/"
    rules: []
  WORKDIR:
    paramSyntaxRegex: "/^~?[\\w\\d-\\/.{}$\\/:]+[\\s]*$/"
    rules: []
  ONBUILD:
    paramSyntaxRegex: /.+/
    rules: []
discouraged_instructions: []
mutually_exclusive_instructions: []