From 795a97466527a5f02e79e47b7fb316c78ffde667 Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Fri, 20 Dec 2019 22:13:07 +0000 Subject: chore(kontemplate): Prepare kontemplate for depot-merge This merge will not yet include moving over to buildGo.nix, as support for testing and such is not present in that library yet. --- ops/kontemplate/templater/dns.go | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 ops/kontemplate/templater/dns.go (limited to 'ops/kontemplate/templater/dns.go') diff --git a/ops/kontemplate/templater/dns.go b/ops/kontemplate/templater/dns.go new file mode 100644 index 000000000000..6cd974dd9324 --- /dev/null +++ b/ops/kontemplate/templater/dns.go @@ -0,0 +1,35 @@ +// Copyright (C) 2016-2019 Vincent Ambo +// +// This file is part of Kontemplate. +// +// Kontemplate is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This file contains the implementation of a template function for retrieving +// IP addresses from DNS + +package templater + +import ( + "fmt" + "net" + "os" +) + +func GetIPsFromDNS(host string) ([]interface{}, error) { + fmt.Fprintf(os.Stderr, "Attempting to look up IP for %s in DNS\n", host) + ips, err := net.LookupIP(host) + + if err != nil { + return nil, fmt.Errorf("IP address lookup failed: %v", err) + } + + var result []interface{} = make([]interface{}, len(ips)) + for i, ip := range ips { + result[i] = ip + } + + return result, nil +} -- cgit 1.4.1