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.dockerfile_lint_rules.yaml
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.dockerfile_lint_rules.yaml
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---
profile:
name: "Default"
description: "Copy of linter default profile. Checks basic syntax."
line_rules:
LABEL:
paramSyntaxRegex: /.+/
# Use defined_label_rules to defined a set of labels for your dockerfile
# In this example, the labels "Vendor","Authoritative_Registry","BZComponent"
# have been defined. A label value is 'valid' if matches the regular
# expression 'valueRegex', otherwise an warn is logged with the string "message"
# at level 'level'. 'reference_url' provides a web link where the user can
# get more information about the rule.
#
defined_namevals:
Name:
valueRegex: /[\w]+/
message: "Label 'Name' is missing or has invalid format"
level: "warn"
required: true
reference_url:
- "http://docs.projectatomic.io/container-best-practices/#"
- "_recommended_labels_for_your_project"
Version:
valueRegex: /[\w.${}()"'\\\/~<>\-?\%:]+/
message: "Label 'Version' is missing or has invalid format"
level: "warn"
required: true
reference_url:
- "http://docs.projectatomic.io/container-best-practices/#"
- "_recommended_labels_for_your_project"
Release:
valueRegex: /[\w.${}()"'\\\/~<>\-?\%:]+/
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"
FROM:
paramSyntaxRegex: /^[\w./\-:]+(:[${}\w.]+)?(-[${}\w.]+)?( as \w+)?$/i
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"
MAINTAINER:
paramSyntaxRegex: /.+/
rules:
-
label: "maintainer_deprecated"
regex: /.+/
level: "info"
message: "the MAINTAINER command is deprecated"
description: "MAINTAINER is deprecated in favor of using LABEL since Docker v1.13.0"
reference_url:
- "https://github.com/docker/cli/blob/master/docs/deprecated.md"
- "#maintainer-in-dockerfile"
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"
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: []