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# converts a name into ip address using DNS in the interface scope
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# if we are managing DNS, we can query the correct DNS server
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# otherwise, use normal systems dns settings to resolv
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class NicIpResolver
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attr_accessor :nic
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delegate :logger, :to => :Rails
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delegate :dns_record, :domain, :to => :nic
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def initialize(opts)
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@nic = opts.fetch(:nic)
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end
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def to_ip_address(name_or_ip)
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return name_or_ip if name_or_ip =~ Net::Validations::IP_REGEXP
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if dns_record(:ptr4)
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lookup = dns_record(:ptr4).dns_lookup(name_or_ip)
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return lookup.ip unless lookup.nil?
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end
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# fall back to normal dns resolution
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domain.resolver.getaddress(name_or_ip).to_s
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rescue => e
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logger.warn "Unable to find IP address for '#{name_or_ip}': #{e}"
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raise ::Foreman::WrappedException.new(e, N_("Unable to find IP address for '%s'"), name_or_ip)
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end
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end
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