stackexchange-dnscontrol/docs/_providers/cloudflare.md

name, title, layout, jsId

name	title	layout	jsId
Cloudflare	Cloudflare Provider	default	CLOUDFLAREAPI

Cloudflare Provider

Configuration

In the credentials file you must provide your Cloudflare API username and access token:

{% highlight json %} { "cloudflare": { "apikey": "your-cloudflare-api-key", "apiuser": "your-cloudflare-email-address" } } {% endhighlight %}

Metadata

Record level metadata availible:

• cloudflare_proxy ("on", "off", or "full")

Domain level metadata availible:

• cloudflare_proxy_default ("on", "off", or "full")

Provider level metadata availible:

• ip_conversions
• manage_redirects: set to true to manage page-rule based redirects

What does on/off/full mean?

• "off" disables the Cloudflare proxy
• "on" enables the Cloudflare proxy (turns on the "orange cloud")
• "full" is the same as "on" but also enables Railgun. DNSControl will prevent you from accidentally enabling "full" on a CNAME that points to an A record that is set to "off", as this is generally not desired.

Aliases:

To make configuration files more readable and less prone to errors, the following aliases are pre-defined:

{% highlight js %} // Meta settings for individual records. var CF_PROXY_OFF = {'cloudflare_proxy': 'off'}; // Proxy disabled. var CF_PROXY_ON = {'cloudflare_proxy': 'on'}; // Proxy enabled. var CF_PROXY_FULL = {'cloudflare_proxy': 'full'}; // Proxy+Railgun enabled. // Per-domain meta settings: // Proxy default off for entire domain (the default): var CF_PROXY_DEFAULT_OFF = {'cloudflare_proxy_default': 'off'}; // Proxy default on for entire domain: var CF_PROXY_DEFAULT_ON = {'cloudflare_proxy_default': 'on'}; {% endhighlight %}

The following example shows how to set meta variables with and without aliases:

{% highlight js %} D('example.tld', REG_NONE, DnsProvider(CLOUDFLARE), A('www1','1.2.3.11', CF_PROXY_ON), // turn proxy ON. A('www2','1.2.3.12', CF_PROXY_OFF), // default is OFF, this is a no-op. A('www3','1.2.3.13', {'cloudflare_proxy': 'on'}) // why would anyone do this? ); {% endhighlight %}

Usage

Example Javascript:

{% highlight js %} var REG_NONE = NewRegistrar('none', 'NONE') var CLOUDFLARE = NewDnsProvider('cloudflare','CLOUDFLAREAPI');

// Example domain where the CF proxy abides by the default (off). D('example.tld', REG_NONE, DnsProvider(CLOUDFLARE), A('proxied','1.2.3.4', CF_PROXY_ON), A('notproxied','1.2.3.5'), A('another','1.2.3.6', CF_PROXY_ON), ALIAS('@','www.example.tld.', CF_PROXY_ON), CNAME('myalias','www.example.tld.', CF_PROXY_ON) );

// Example domain where the CF proxy default is set to "on": D('example2.tld', REG_NONE, DnsProvider(CLOUDFLARE), CF_PROXY_DEFAULT_ON, // Enable CF proxy for all items unless otherwise noted. A('proxied','1.2.3.4'), A('notproxied','1.2.3.5', CF_PROXY_OFF), A('another','1.2.3.6'), ALIAS('@','www.example2.tld.'), CNAME('myalias','www.example2.tld.') ); {%endhighlight%}

Activation

DNSControl depends on a Cloudflare Global API Key that's available under "My Settings".

New domains

If a domain does not exist in your CloudFlare account, DNSControl will not automatically add it. You'll need to do that via the control panel manually or via the dnscontrol create-domains command.

Redirects

The Cloudflare provider can manage Page-Rule based redirects for your domains. Simply use the CF_REDIRECT and CF_TEMP_REDIRECT functions to make redirects:

{% highlight js %}

// chiphacker.com is an alias for electronics.stackexchange.com

var CLOUDFLARE = NewDnsProvider('cloudflare','CLOUDFLAREAPI', {"manage_redirects": true}); // enable manage_redirects

D("chiphacker.com", REG_NONE, DnsProvider(CLOUDFLARE), // must have A records with orange cloud on. Otherwise page rule will never run. A("@","1.2.3.4", CF_PROXY_ON), A("www", "1.2.3.4", CF_PROXY_ON) A("meta", "1.2.3.4", CF_PROXY_ON),

// 302 for meta subdomain
CF_TEMP_REDIRECT("meta.chiphacker.com/*", "https://electronics.meta.stackexchange.com/$1"),

// 301 all subdomains and preserve path
CF_REDIRECT("*chiphacker.com/*", "https://electronics.stackexchange.com/$2"),

); {%endhighlight%}

Notice a few details:

1. We need an A record with cloudflare proxy on, or the page rule will never run.
2. The IP address in those A records may be mostly irrelevant, as cloudflare should handle all requests (assuming some page rule matches).
3. Ordering matters for priority. CF_REDIRECT records will be added in the order they appear in your js. So put catch-alls at the bottom.