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Kong External Auth

Kong plugin to authenticate requests using http services.

Description

This plugin lets you authenticate any request using a separate HTTP service.

For every incoming request, the method, path, query and headers are forwarded to the auth service (removing the body).

If the service returns 200, the request continues the normal path. In any other case, 401 (Unauthorized) is returned to the client.

Installation

$ luarocks install external-auth

Update the plugins config to add external-auth:

plugins = bundled,external-auth

Configuration

Add it to a service calling the admin api:

$ curl -X POST http://kong:8001/services/{service}/plugins \
  -d 'name=external-auth' \
  -d 'config.url=http://auth-service/'
Parameter default description
config.url [required] Service receiving the original request method, path, query, headers. Http and https are allowed.
config.connect_timeout 10000 Connection timeout (in ms) to the provided url.
config.send_timeout 60000 Send timeout (in ms) to the provided url.
config.read_timeout 60000 Read timeout (in ms) to the provided url.

TODO

  • Allow auth service response headers to be inserted to the request (currently, only the status code of the response is used).
  • On failure, allow auth service response to be returned to the client.
  • Use path from the configured url (currently always overrides the auth service path with the one from the incoming request).

References

Inspired on Ambassador's auth service

https://www.getambassador.io/reference/services/auth-service

Author

Pablo Romanelli

License

The MIT License (MIT)
=====================

Copyright (c) 2015 Panagis Tselentis

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.