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Contents
# Classes that inherit this Base class should implement:
#
# initialize - should call setup in it
# policy_name
#
module Jets::Cfn::TemplateBuilders::IamPolicy
class BasePolicy
extend Memoist
attr_reader :definitions
# Not using initialize because method signature is different
def setup
# empty starting policy that will be changed
@policy = {
"Version" => "2012-10-17",
"Statement" => []
}
# https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_sid.html
@sid = 0 # counter
end
def policy_document
definitions.map { |definition| standardize(definition) }
# Thanks: https://www.mnishiguchi.com/2017/11/29/rails-hash-camelize-and-underscore-keys/
@policy.deep_transform_keys! { |key| key.to_s.camelize }
end
memoize :policy_document # only process policy_document once
def standardize(definition)
@sid += 1
case definition
when String
@policy["Statement"] << {
sid: "Stmt#{@sid}",
action: [definition],
effect: "Allow",
resource: "*",
}
when Hash
definition = definition.stringify_keys
if definition.key?("Version") # special case where we replace the policy entirely
@policy = definition
else
@policy["Statement"] << definition
end
end
end
# Need to underscore and then classify again for this case:
# Jets::PreheatJob_policy => JetsPreheatJobPolicy
# Or else you we get this:
# Jets::PreheatJob_policy => JetsPreheatjobPolicy
def classify_name(text)
text.gsub('::','_').underscore.classify
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems