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Additional content in clouddns plugin, and format of markdown (#3138)

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This PR adds some content in clouddns plugin to mention about
the fact that privately hosted zone does not need to attach to
a VPC.
Also change PROJECT_NAME to PROJECTT_ID, and reformt the markdown
to replace tab with 4 whitespace.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang 2019-08-17 14:46:48 -07:00 • committed by Miek Gieben
parent ef7efae761
commit b53d822e62
1 changed files with 13 additions and 7 deletions
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20
plugin/clouddns/README.md
View file

@ -6,14 +6,18 @@
## Description
The clouddns plugin is useful for serving zones from resource record
sets in GCP clouddns. This plugin supports all [Google Cloud DNS records](https://cloud.google.com/dns/docs/overview#supported_dns_record_types).
The clouddns plugin can be used when coredns is deployed on GCP or elsewhere.
The clouddns plugin is useful for serving zones from resource record sets in GCP clouddns.
This plugin supports all [Google Cloud DNS records](https://cloud.google.com/dns/docs/overview#supported_dns_record_types).
The clouddns plugin can be used when coredns is deployed on GCP or elsewhere. Note that
this plugin access the the resource records through Google Cloud API. For records in a
privately hosted zone, it is not necessary to place CoreDNS and this plugin in associated
VPC network. In fact the private hosted zone could be created without any associated VPC
and this plugin could still access the resource records under the hosted zone.
## Syntax
~~~ txt
clouddns [ZONE:PROJECT_NAME:HOSTED_ZONE_NAME...] {
clouddns [ZONE:PROJECT_ID:HOSTED_ZONE_NAME...] {
credentials [FILENAME]
fallthrough [ZONES...]
}
@ -23,12 +27,14 @@ clouddns [ZONE:PROJECT_NAME:HOSTED_ZONE_NAME...] {
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.
* **PROJECT_ID** the project ID of the Google Cloud project.
* **HOSTED_ZONE_NAME** the name of the hosted zone that contains the resource record sets to be
accessed.
* `credentials` is used for reading the credential file.
* **FILENAME** GCP credentials file path.
* **FILENAME** GCP credentials file path (normally a .json file).
* `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
@ -43,7 +49,7 @@ Enable clouddns with implicit GCP credentials and resolve CNAMEs via 10.0.0.1:
~~~ txt
. {
clouddns example.org.:gcp-example-project:example-zone
clouddns example.org.:gcp-example-project:example-zone
forward . 10.0.0.1
}
~~~
@ -53,7 +59,7 @@ Enable clouddns with fallthrough:
~~~ txt
. {
clouddns example.org.:gcp-example-project:example-zone clouddns example.com.:gcp-example-project:example-zone-2 {
fallthrough example.gov.
fallthrough example.gov.
}
}
~~~