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# frozen_string_literal: true
module Kubeclient
# Get a bearer token from the Google's application default credentials.
class GoogleApplicationDefaultCredentials
class GoogleDependencyError < LoadError # rubocop:disable Lint/InheritException
end
class << self
def token
begin
require 'googleauth'
rescue LoadError => e
raise GoogleDependencyError,
'Error requiring googleauth gem. Kubeclient itself does not include the ' \
'googleauth gem. To support auth-provider gcp, you must include it in your ' \
"calling application. Failed with: #{e.message}"
end
scopes = [
'https://www.googleapis.com/auth/cloud-platform',
'https://www.googleapis.com/auth/userinfo.email'
]
authorization = Google::Auth.get_application_default(scopes)
authorization.apply({})
authorization.access_token
end
end
end
end
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