2017-03-21 11:47:18 +08:00
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---
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layout: default
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---
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# Examples
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* TOC
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{:toc}
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2017-03-23 03:20:19 +08:00
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## Typical DNS Records
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{% highlight javascript %}
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D('example.com', REG, DnsProvider('GCLOUD'),
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A('@', '1.2.3.4'), // The naked or 'apex' domain.
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A('server1', '2.3.4.5'),
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AAAA('wide', '2001:0db8:85a3:0000:0000:8a2e:0370:7334'),
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CNAME('www', 'server1'),
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CNAME('another', 'service.mycloud.com.'),
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2017-03-23 05:31:00 +08:00
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MX('mail', 10, 'mailserver'),
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2017-03-23 03:20:19 +08:00
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MX('mail', 20, 'mailqueue'),
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TXT('the', 'message'),
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NS('delegated', 'ns1.dnsexample.com.'),
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2017-03-23 05:31:00 +08:00
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NS('delegated', 'ns2.dnsexample.com.')
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2017-03-23 03:20:19 +08:00
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)
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{% endhighlight %}
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## Set a specific TTL for a record
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{% highlight javascript %}
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A('one', '1.2.3.4', TTL(400)),
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{% endhighlight %}
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2017-03-21 11:47:18 +08:00
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## Variables for common IP Addresses
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{% highlight javascript %}
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2017-03-28 05:33:27 +08:00
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var addrA = IP('1.2.3.4')
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2017-03-21 11:47:18 +08:00
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2017-03-28 05:33:27 +08:00
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D('example.com', REG, DnsProvider('R53'),
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A('@', addrA), //1.2.3.4
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A('www', addrA + 1), //1.2.3.5
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2017-03-21 11:47:18 +08:00
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)
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{% endhighlight %}
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## Variables to swap active Data Center
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{% highlight javascript %}
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2017-03-28 05:33:27 +08:00
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var dcA = IP('5.5.5.5');
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var dcB = IP('6.6.6.6');
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2017-03-21 11:47:18 +08:00
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// switch to dcB to failover
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var activeDC = dcA;
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2017-03-28 05:33:27 +08:00
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D('example.com', REG, DnsProvider('R53'),
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A('@', activeDC + 5), // fixed address based on activeDC
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2017-03-21 11:47:18 +08:00
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)
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{% endhighlight %}
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## Macro to group repeated records
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{% highlight javascript %}
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var GOOGLE_APPS_DOMAIN_MX = [
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MX('@', 1, 'aspmx.l.google.com.'),
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MX('@', 5, 'alt1.aspmx.l.google.com.'),
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MX('@', 5, 'alt2.aspmx.l.google.com.'),
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MX('@', 10, 'alt3.aspmx.l.google.com.'),
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MX('@', 10, 'alt4.aspmx.l.google.com.'),
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]
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2017-03-28 05:33:27 +08:00
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D('example.com', REG, DnsProvider('R53'),
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GOOGLE_APPS_DOMAIN_MX,
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A('@', '1.2.3.4')
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2017-03-21 11:47:18 +08:00
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)
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{% endhighlight %}
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## Dual DNS Providers
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{% highlight javascript %}
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2017-03-28 05:33:27 +08:00
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D('example.com', REG, DnsProvider('R53'), DnsProvider('GCLOUD'),
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A('@', '1.2.3.4')
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2017-03-21 11:47:18 +08:00
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)
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// above zone uses 8 NS records total (4 from each provider dynamically gathered)
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// below zone will only take 2 from each for a total of 4. May be better for performance reasons.
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2017-03-28 05:33:27 +08:00
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D('example2.com', REG, DnsProvider('R53',2), DnsProvider('GCLOUD',2),
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A('@', '1.2.3.4')
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2017-03-21 11:47:18 +08:00
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)
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// or set a Provider as a non-authoritative backup (don't register its nameservers)
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2017-03-28 05:33:27 +08:00
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D('example3.com', REG, DnsProvider('R53'), DnsProvider('GCLOUD',0),
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A('@', '1.2.3.4')
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2017-03-21 11:47:18 +08:00
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)
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2017-03-23 03:20:19 +08:00
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{% endhighlight %}
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