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| -rw-r--r-- | plugin/clouddns/README.md | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/plugin/clouddns/README.md b/plugin/clouddns/README.md index 6ff4a2b24..1e122813f 100644 --- a/plugin/clouddns/README.md +++ b/plugin/clouddns/README.md @@ -34,6 +34,9 @@ clouddns [ZONE:PROJECT_ID:HOSTED_ZONE_NAME...] { accessed. * `credentials` is used for reading the credential file from **FILENAME** (normally a .json file). + This field is optional. If this field is not provided then authentication will be done automatically, + e.g., through environmental variable `GOOGLE_APPLICATION_CREDENTIALS`. Please see + Google Cloud's [authentication method](https://cloud.google.com/docs/authentication) for more details. * `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 |