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coredns/plugin/route53/README.md
Miek Gieben 22c6e3e179 plugins: set upstream unconditionally (#2956)
`upstream` is not needed as a setting; just set if unconditionally and
remove all documentation and tests for it.

At some point we want remove the hanlding for `upstream` as well and
error out on seeing it.

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-07-02 16:23:47 +01:00

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# route53
## Name
*route53* - enables serving zone data from AWS route53.
## Description
The route53 plugin is useful for serving zones from resource record
sets in AWS route53. This plugin supports all Amazon Route 53 records
([https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/ResourceRecordTypes.html](https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/ResourceRecordTypes.html)).
The route53 plugin can be used when coredns is deployed on AWS or elsewhere.
## Syntax
~~~ txt
route53 [ZONE:HOSTED_ZONE_ID...] {
[aws_access_key AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY]
credentials PROFILE [FILENAME]
fallthrough [ZONES...]
}
~~~
* **ZONE** the name of the domain to be accessed. When there are multiple zones with overlapping
domains (private vs. public hosted zone), CoreDNS does the lookup in the given order here.
Therefore, for a non-existing resource record, SOA response will be from the rightmost zone.
* **HOSTED_ZONE_ID** the ID of the hosted zone that contains the resource record sets to be
accessed.
* **AWS_ACCESS_KEY_ID** and **AWS_SECRET_ACCESS_KEY** the AWS access key ID and secret access key
to be used when query AWS (optional). If they are not provided, then coredns tries to access
AWS credentials the same way as AWS CLI, e.g., environmental variables, AWS credentials file,
instance profile credentials, etc.
* `credentials` is used for reading the credential file and setting the profile name for a given
zone.
* **PROFILE** AWS account profile name. Defaults to `default`.
* **FILENAME** AWS credentials filename. Defaults to `~/.aws/credentials` are used.
* `fallthrough` If zone matches and no record can be generated, pass request to the next plugin.
If **[ZONES...]** is omitted, then fallthrough happens for all zones for which the plugin is
authoritative. If specific zones are listed (for example `in-addr.arpa` and `ip6.arpa`), then
only queries for those zones will be subject to fallthrough.
* **ZONES** zones it should be authoritative for. If empty, the zones from the configuration block
## Examples
Enable route53 with implicit AWS credentials and and resolve CNAMEs via 10.0.0.1:
~~~ txt
. {
route53 example.org.:Z1Z2Z3Z4DZ5Z6Z7
forward . 10.0.0.1
}
~~~
Enable route53 with explicit AWS credentials:
~~~ txt
. {
route53 example.org.:Z1Z2Z3Z4DZ5Z6Z7 {
aws_access_key AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
}
}
~~~
Enable route53 with fallthrough:
~~~ txt
. {
route53 example.org.:Z1Z2Z3Z4DZ5Z6Z7 example.gov.:Z654321543245 {
fallthrough example.gov.
}
}
~~~
Enable route53 with multiple hosted zones with the same domain:
~~~ txt
. {
route53 example.org.:Z1Z2Z3Z4DZ5Z6Z7 example.org.:Z93A52145678156
}
~~~