52 lines
1.5 KiB
Ruby
Executable File
52 lines
1.5 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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require "netaddr"
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require "set"
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require_relative "lib/lxc"
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def update_hetzner_rdns6(user, password, domain, subnet, network)
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api = Lxc::Hetzner.new(user, password)
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rdns = api.get("/rdns")
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records = {}
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rdns.each do |val|
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rec = val["rdns"]
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cidr = NetAddr::CIDR.create(rec["ip"])
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next unless cidr.version == 6 and subnet.contains?(rec["ip"])
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records[rec["ip"]] = rec["ptr"]
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end
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processed_ips = Set.new
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network.each do |host, data|
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cidr = data["ipv6"]
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next if cidr.nil?
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cidr = NetAddr::CIDR.create(cidr)
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next unless cidr.version == 6 and subnet.contains?(data["ipv6"])
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hostname = data["rdns6"] || "#{host}.#{domain}"
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ip = cidr.ip(Short: true)
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next if processed_ips.include?(ip)
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processed_ips << ip
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ptr = records.delete(ip)
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if ptr.nil? or ptr != hostname
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puts "add ptr: #{ip} -> #{hostname}"
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api.post("/rdns/#{ip}", ptr: hostname)
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end
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end
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records.each do |ip, ptr|
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puts "delete ptr: #{ip} -> #{ptr}"
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api.delete("/rnds/#{ip}", allow_404: true)
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end
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end
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registry = Lxc::Registry.new
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registry.data["zone"] ||= {}
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domain = registry.data["zone"]["ipv6-domain"] || "lxc"
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subnet = registry.data["zone"]["v6_subnet"]
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if subnet
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subnet_cidr = NetAddr::CIDR.create(subnet)
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credentials = File.read(Lxc::CONFIG_ROOT.join("hetzner.key"))
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user, password = credentials.split(":")
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network = registry.data["network"] || {}
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update_hetzner_rdns6(user, password, domain, subnet_cidr, network)
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else
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puts "no v6_subnet specified in container.json. skip rdns records"
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end
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