add whenever and make rake for dns update

lib/dns_update_job.rb

@@ -0,0 +1,27 @@
+require "dnsimple"
+class DnsUpdateJob
+
+  def client
+    @client ||= Dnsimple::Client.new(access_token: Rails.application.credentials.simple_token)
+  end
+  def simple_id
+      Rails.application.credentials.simple_id
+  end
+  def my_ip
+    @ip ||= HTTParty.get("https://jsonip.com/")["ip"]
+  end
+
+  def find_record(name , host)
+    zones = client.zones.list_zone_records(simple_id, host, filter: { type: 'A' , name: name })
+    zones.data.first
+  end
+
+  def same_ip(name , host)
+    my_ip == find_record(name , host).content
+  end
+
+  def update_ip(name , host)
+    record = find_record(name , host)
+    client.zones.update_zone_record(simple_id, host , record.id , content: my_ip)
+  end
+end

lib/tasks/dns.rake

@@ -0,0 +1,9 @@
+namespace :dns do
+  desc "Update own dyn dns records"
+  task update: :environment do
+    job = DnsUpdateJob.new
+    puts "My ip is #{job.my_ip}"
+    job.update_ip("gateway" , "hubfeenix.fi")
+  end
+
+end