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@ -10,4 +10,4 @@ DEPENDENCIES
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xmpp4r
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BUNDLED WITH
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2.1.4
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1.17.2
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@ -1,15 +0,0 @@
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{ pkgs, helpers, ... }:
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with pkgs.lib;
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let
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gems = pkgs.bundlerEnv {
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name = "gems-for-backplane-dns-client";
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gemdir = ./.;
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};
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in helpers.lib.writeRubyApplication {
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name = "backplane-dns-client";
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inherit pkgs;
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ruby = gems.wrappedRuby;
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text = readFile ./dns-client.rb;
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}
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199
dns-client.rb
199
dns-client.rb
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@ -1,70 +1,70 @@
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# frozen_string_literal: true
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require 'ipaddr'
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require 'socket'
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require 'optparse'
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require 'json'
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require 'securerandom'
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require 'xmpp4r'
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require "ipaddr"
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require "socket"
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require "optparse"
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require "json"
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require "securerandom"
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options = {
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sshfp: []
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}
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require "xmpp4r"
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# rubocop:disable Metrics/BlockLength
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puts ARGV
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options = {}
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OptionParser.new do |opts|
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opts.banner = 'usage: ${$0} [opts]'
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opts.banner = "usage: ${$0} [opts]"
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opts.on('-i', '--interface=INTERFACE',
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'Publicly-accessible interface') do |interface|
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opts.on("-i", "--interface=INTERFACE",
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"Publicly-accessible interface") do |interface|
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options[:interface] = interface
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end
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opts.on('-d', '--domain=DOMAIN',
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'Domain on which we wish to set the new ip') do |domain|
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opts.on("-d", "--domain=DOMAIN",
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"Domain on which we wish to set the new ip") do |domain|
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options[:domain] = domain
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end
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opts.on('-s', '--server=SERVER',
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'Backplane DNS XMPP server') do |server|
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opts.on("-s", "--server=SERVER",
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"Backplane DNS XMPP server") do |server|
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options[:server] = server
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end
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opts.on('-p', '--password-file=/path/to/file',
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'File containing password for XMPP server') do |pw_file|
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opts.on("-p", "--password-file=/path/to/file",
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"File containing password for XMPP server") do |pw_file|
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options[:pw_file] = pw_file
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end
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opts.on('-4', '--ipv4',
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'Check for a public IPv4 and register with the backplane.') do
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opts.on("-4", "--ipv4",
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"Check for a public IPv4 and register with the backplane.") do
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options[:ipv4] = true
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end
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opts.on('-6', '--ipv6',
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'Check for a public IPv6 and register with the backplane.') do
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opts.on("-6", "--ipv6",
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"Check for a public IPv6 and register with the backplane.") do
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options[:ipv6] = true
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end
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opts.on('-f', '--ssh-fp=SSHFP', 'SSH fingerprint to register with he backplane.') do |sshfp|
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options[:sshfp] << sshfp
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opts.on("-f", "--sshfp=FILE",
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"Register host SSH key fingerprints with the backplane.") do |file|
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options[:sshfp] = [] if not options[:sshfp]
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options[:sshfp] = options[:sshfp] + [file]
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end
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end.parse!
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# rubocop:enable Metrics/BlockLength
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raise 'domain is required' unless options[:domain]
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raise 'server is required' unless options[:server]
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raise 'password file is required' unless options[:pw_file]
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raise 'at least one of -4 or -6 required' unless options[:ipv4] || options[:ipv6]
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password = options[:pw_file]
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raise "file does not exist or is not readable: #{password}" unless File::readable?(password)
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def error(msg)
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puts msg
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raise msg
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throw msg
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end
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# XMPP client for Fudo Backplane
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error("domain is required") if not options[:domain]
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error("server is required") if not options[:server]
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error("password file is required") if not options[:pw_file]
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error("at least one of -4 or -6 required") if not (options[:ipv4] or options[:ipv6])
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if not File::readable?(options[:pw_file])
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error("file does not exist or is not readable")
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end
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password = File::open(options[:pw_file]) { |f| f.gets.strip }
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class XMPPClient
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def initialize(domain, hostname, server, password)
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@jid = "host-#{hostname}@#{server}"
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@ -80,7 +80,7 @@ class XMPPClient
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disconnect if connected?
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@client = Jabber::Client::new(@jid)
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@client.connect # will use SRV records
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error('failed to initialize TLS connection') unless @client.is_tls?
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error("failed to initialize TLS connection") if not @client.is_tls?
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@client.auth(@password)
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register_response_callback
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end
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@ -94,7 +94,7 @@ class XMPPClient
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if @client.respond_to?(:is_connected?) && @client.is_connected?
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begin
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@client.close
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rescue Errno::EPIPE, IOError
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rescue Errno::EPIPE, IOError => e
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nil
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end
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end
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@ -110,7 +110,7 @@ class XMPPClient
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@client.send(msg)
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response = receive_response(msg_id)
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puts "response: #{response}"
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response && response['status'] == 'OK'
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response and response["status"] == "OK"
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end
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def send_ip(ip)
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@ -125,7 +125,7 @@ class XMPPClient
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{
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version: 1,
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service: :dns,
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msgid: msg_id,
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msgid: msg_id,
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payload: req
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}
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end
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@ -133,16 +133,16 @@ class XMPPClient
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def ip_payload(ip)
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{
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request: ip.ipv4? ? :change_ipv4 : :change_ipv6,
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domain: @domain,
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ip: ip.to_s
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domain: @domain,
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ip: ip.to_s
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}
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end
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def sshfp_payload(fingerprint)
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def sshfp_payload(fp)
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{
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request: :change_sshfp,
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domain: @domain,
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sshfp: fingerprint
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domain: @domain,
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sshfp: fp
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}
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end
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@ -158,36 +158,35 @@ class XMPPClient
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def receive_response(msg_id)
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msg = @responses.pop
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return msg if msg && msg['msgid'] == msg_id.to_s
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return msg if (msg and (msg["msgid"] == msg_id.to_s))
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raise "failed to receive message: #{msg}"
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end
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end
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RESERVED_V4_NETWORKS = [
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'0.0.0.0/8',
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'10.0.0.0/8',
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'100.64.0.0/10',
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'127.0.0.0/8',
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'169.254.0.0/16',
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'172.16.0.0/12',
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'192.0.0.0/24',
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'192.0.2.0/24',
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'192.88.99.0/24',
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'192.168.0.0/16',
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'198.18.0.0/15',
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'198.51.100.0/24',
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'203.0.113.0/24',
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'224.0.0.0/4',
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'240.0.0.0/4',
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'255.255.255.255/32'
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"0.0.0.0/8",
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"10.0.0.0/8",
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"100.64.0.0/10",
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"127.0.0.0/8",
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"169.254.0.0/16",
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"172.16.0.0/12",
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"192.0.0.0/24",
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"192.0.2.0/24",
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"192.88.99.0/24",
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"192.168.0.0/16",
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"198.18.0.0/15",
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"198.51.100.0/24",
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"203.0.113.0/24",
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"224.0.0.0/4",
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"240.0.0.0/4",
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"255.255.255.255/32"
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].map { |ip| IPAddr.new(ip) }
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def public_ip?(ip)
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if ip.ipv4?
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RESERVED_V4_NETWORKS.none? { |network| network.include? ip }
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elsif ip.ipv6?
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!(ip.link_local? || ip.loopback? || ip.private?)
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if (ip.ipv4?)
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not RESERVED_V4_NETWORKS.any? { |network| network.include? ip }
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elsif (ip.ipv6?)
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not (ip.link_local? or ip.loopback? or ip.private?)
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else
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false
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end
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@ -197,28 +196,38 @@ def to_ipaddr(addrinfo)
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if addrinfo.ipv4?
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IPAddr.new addrinfo.ip_address
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else
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IPAddr.new(addrinfo.ip_address.split('%')[0])
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IPAddr.new(addrinfo.ip_address.split("%")[0])
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end
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end
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def local_addresses
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ips = Socket::ip_address_list.map do |addrinfo|
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Socket::ip_address_list.map do |addrinfo|
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to_ipaddr(addrinfo)
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end
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ips.select { |ip| public_ip?(ip) }
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end.select { |ip| public_ip?(ip) }
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end
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def interface_addresses(interface)
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ifaddrs = Socket::getifaddrs.select do |ifaddr|
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ifaddr.name == interface &&
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ifaddr.addr.ip? &&
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ifaddr.flag & Socket::IFF_MULTICAST != 0
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Socket::getifaddrs.select do |ifaddr|
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ifaddr.name == interface
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end.select do |ifaddr|
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ifaddr.addr.ip? and (ifaddr.flags & Socket::IFF_MULTICAST != 0)
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end.map do |ifaddr|
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to_ipaddr(ifaddr.addr)
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end.filter do |ip|
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public_ip? ip
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end
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ifaddrs.map { |ifaddr| to_ipaddr(ifaddr.addr) }.filter(:public_ip?)
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end
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def host_sshfp(keys)
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keys.flat_map { |keyfile|
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`ssh-keygen -r hostname -f #{keyfile}`.split("\n")
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}.map { |fp|
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fp.match(/[0-9] [0-9] [a-fA-F0-9]{32,64}$/)[0]
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}.compact
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end
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def hostname
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Socket.gethostname.split('.').first
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Socket.gethostname.split(".").first
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end
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client = XMPPClient::new(options[:domain],
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@ -238,13 +247,13 @@ begin
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end
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if options[:ipv4]
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ipv4 = addrs.find(:ipv4?)
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ipv4 = addrs.find { |ip| ip.ipv4? }
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if ipv4
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puts "#{options[:server]}: #{hostname}.#{options[:domain]} IN A => #{ipv4}"
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puts "#{options[:server]}: #{hostname}.#{options[:domain]} IN A => #{ipv4.to_s}"
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if client.send_ip(ipv4)
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puts 'OK'
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puts "OK"
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else
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puts 'ERROR'
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puts "ERROR"
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success = false
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end
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else
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|
|
@ -253,13 +262,13 @@ begin
|
|||
end
|
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|
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if options[:ipv6]
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ipv6 = addrs.find(:ipv6?)
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ipv6 = addrs.find { |ip| ip.ipv6? }
|
||||
if ipv6
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puts "#{options[:server]}: #{hostname}.#{options[:domain]} IN AAAA => #{ipv6}"
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||||
puts "#{options[:server]}: #{hostname}.#{options[:domain]} IN AAAA => #{ipv6.to_s}"
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||||
if client.send_ip(ipv6)
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||||
puts 'OK'
|
||||
puts "OK"
|
||||
else
|
||||
puts 'ERROR'
|
||||
puts "ERROR"
|
||||
success = false
|
||||
end
|
||||
else
|
||||
|
|
@ -267,14 +276,18 @@ begin
|
|||
end
|
||||
end
|
||||
|
||||
unless options[:sshfp].empty?
|
||||
fps = options[:sshfp]
|
||||
puts "#{options[:server]}: #{hostname}.#{options[:domain]} IN SSHFP => #{fps}"
|
||||
if client.send_sshfp(fps)
|
||||
puts 'OK'
|
||||
if options[:sshfp]
|
||||
fps = host_sshfp(options[:sshfp])
|
||||
if not fps.empty?
|
||||
puts "#{options[:server]}: #{hostname}.#{options[:domain]} IN SSHFP => #{fps}"
|
||||
if client.send_sshfp(fps)
|
||||
puts "OK"
|
||||
else
|
||||
puts "ERROR"
|
||||
success = false
|
||||
end
|
||||
else
|
||||
puts 'ERROR'
|
||||
success = false
|
||||
puts "#{options[:server]}: no valid sshfps found"
|
||||
end
|
||||
end
|
||||
ensure
|
||||
|
|
|
|||
236
flake.lock
236
flake.lock
|
|
@ -1,236 +0,0 @@
|
|||
{
|
||||
"nodes": {
|
||||
"clj-nix": {
|
||||
"inputs": {
|
||||
"devshell": "devshell",
|
||||
"flake-utils": "flake-utils_2",
|
||||
"nixpkgs": [
|
||||
"helpers",
|
||||
"nixpkgs"
|
||||
]
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1663870497,
|
||||
"narHash": "sha256-gnoyYWvZl64WBqR3tf9bKHAznEtBCHmwx7taHghH9Lw=",
|
||||
"owner": "jlesquembre",
|
||||
"repo": "clj-nix",
|
||||
"rev": "23d9daacc80e634df078c4c6e34d592e1593d84c",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "jlesquembre",
|
||||
"repo": "clj-nix",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"clj2nix": {
|
||||
"inputs": {
|
||||
"flake-compat": "flake-compat",
|
||||
"nixpkgs": "nixpkgs",
|
||||
"utils": "utils"
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1654804151,
|
||||
"narHash": "sha256-D/fRFmem9MoSWAmeK8VE6EMtfBRF3xPpEXp9AotW+K0=",
|
||||
"owner": "hlolli",
|
||||
"repo": "clj2nix",
|
||||
"rev": "a321028a6670fc6329272a4d1ac0054f0b25d920",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "hlolli",
|
||||
"repo": "clj2nix",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"devshell": {
|
||||
"inputs": {
|
||||
"flake-utils": "flake-utils",
|
||||
"nixpkgs": [
|
||||
"helpers",
|
||||
"clj-nix",
|
||||
"nixpkgs"
|
||||
]
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1658746384,
|
||||
"narHash": "sha256-CCJcoMOcXyZFrV1ag4XMTpAPjLWb4Anbv+ktXFI1ry0=",
|
||||
"owner": "numtide",
|
||||
"repo": "devshell",
|
||||
"rev": "0ffc7937bb5e8141af03d462b468bd071eb18e1b",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "devshell",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"flake-compat": {
|
||||
"flake": false,
|
||||
"locked": {
|
||||
"lastModified": 1627913399,
|
||||
"narHash": "sha256-hY8g6H2KFL8ownSiFeMOjwPC8P0ueXpCVEbxgda3pko=",
|
||||
"owner": "edolstra",
|
||||
"repo": "flake-compat",
|
||||
"rev": "12c64ca55c1014cdc1b16ed5a804aa8576601ff2",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "edolstra",
|
||||
"repo": "flake-compat",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"flake-utils": {
|
||||
"locked": {
|
||||
"lastModified": 1642700792,
|
||||
"narHash": "sha256-XqHrk7hFb+zBvRg6Ghl+AZDq03ov6OshJLiSWOoX5es=",
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"rev": "846b2ae0fc4cc943637d3d1def4454213e203cba",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"flake-utils_2": {
|
||||
"locked": {
|
||||
"lastModified": 1656928814,
|
||||
"narHash": "sha256-RIFfgBuKz6Hp89yRr7+NR5tzIAbn52h8vT6vXkYjZoM=",
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"rev": "7e2a3b3dfd9af950a856d66b0a7d01e3c18aa249",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"helpers": {
|
||||
"inputs": {
|
||||
"clj-nix": "clj-nix",
|
||||
"clj2nix": "clj2nix",
|
||||
"nixpkgs": "nixpkgs_2",
|
||||
"utils": "utils_2"
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1674932271,
|
||||
"narHash": "sha256-ArHZiRPpPMJyGSa65VKwTUG6aNICtMTf26pjOuK4snQ=",
|
||||
"ref": "refs/heads/master",
|
||||
"rev": "1923e4cf4ef116782c9ea29416150bdb3d532b0b",
|
||||
"revCount": 17,
|
||||
"type": "git",
|
||||
"url": "https://git.fudo.org/fudo-public/nix-helpers.git"
|
||||
},
|
||||
"original": {
|
||||
"type": "git",
|
||||
"url": "https://git.fudo.org/fudo-public/nix-helpers.git"
|
||||
}
|
||||
},
|
||||
"nixpkgs": {
|
||||
"locked": {
|
||||
"lastModified": 1637881340,
|
||||
"narHash": "sha256-/meU5CTm8GnaETZrJa0UqBQvk9T/jKp1+MLIQQ7FTTo=",
|
||||
"owner": "NixOS",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "d460f48ddb884f7270b7f7bfcbf8a7b91140caa5",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "NixOS",
|
||||
"repo": "nixpkgs",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"nixpkgs_2": {
|
||||
"locked": {
|
||||
"lastModified": 1672353432,
|
||||
"narHash": "sha256-oZfgp/44/o2tWiylV30cR+DLyWTJ+5dhsdWZVpzs3e4=",
|
||||
"owner": "NixOS",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "913a47cd064cc06440ea84e5e0452039a85781f0",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"id": "nixpkgs",
|
||||
"ref": "nixos-22.11",
|
||||
"type": "indirect"
|
||||
}
|
||||
},
|
||||
"nixpkgs_3": {
|
||||
"locked": {
|
||||
"lastModified": 1672580127,
|
||||
"narHash": "sha256-3lW3xZslREhJogoOkjeZtlBtvFMyxHku7I/9IVehhT8=",
|
||||
"owner": "NixOS",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "0874168639713f547c05947c76124f78441ea46c",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"id": "nixpkgs",
|
||||
"ref": "nixos-22.05",
|
||||
"type": "indirect"
|
||||
}
|
||||
},
|
||||
"root": {
|
||||
"inputs": {
|
||||
"helpers": "helpers",
|
||||
"nixpkgs": "nixpkgs_3",
|
||||
"utils": "utils_3"
|
||||
}
|
||||
},
|
||||
"utils": {
|
||||
"locked": {
|
||||
"lastModified": 1637014545,
|
||||
"narHash": "sha256-26IZAc5yzlD9FlDT54io1oqG/bBoyka+FJk5guaX4x4=",
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"rev": "bba5dcc8e0b20ab664967ad83d24d64cb64ec4f4",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"utils_2": {
|
||||
"locked": {
|
||||
"lastModified": 1667395993,
|
||||
"narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"utils_3": {
|
||||
"locked": {
|
||||
"lastModified": 1667395993,
|
||||
"narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "numtide",
|
||||
"repo": "flake-utils",
|
||||
"type": "github"
|
||||
}
|
||||
}
|
||||
},
|
||||
"root": "root",
|
||||
"version": 7
|
||||
}
|
||||
34
flake.nix
34
flake.nix
|
|
@ -1,34 +0,0 @@
|
|||
{
|
||||
description = "Fudo Backplane Client.";
|
||||
|
||||
inputs = {
|
||||
nixpkgs.url = "nixpkgs/nixos-22.05";
|
||||
helpers.url = "git+https://git.fudo.org/fudo-public/nix-helpers.git";
|
||||
utils.url = "github:numtide/flake-utils";
|
||||
};
|
||||
|
||||
outputs = { nixpkgs, helpers, utils, ... }:
|
||||
utils.lib.eachDefaultSystem (system:
|
||||
let pkgs = nixpkgs.legacyPackages."${system}";
|
||||
in {
|
||||
packages = rec {
|
||||
default = backplaneDnsClient;
|
||||
backplaneDnsClient =
|
||||
import ./dns-client.nix { inherit pkgs helpers; };
|
||||
};
|
||||
|
||||
devShells = rec {
|
||||
default = update;
|
||||
update = let
|
||||
update-deps = pkgs.writeShellApplication {
|
||||
name = "update-deps";
|
||||
runtimeInputs = with pkgs; [ bundler bundix ];
|
||||
text = ''
|
||||
bundle lock
|
||||
bundix
|
||||
'';
|
||||
};
|
||||
in pkgs.mkShell { buildInputs = with pkgs; [ update-deps ]; };
|
||||
};
|
||||
});
|
||||
}
|
||||
Loading…
Reference in New Issue