Extension-based authentication

Some authentication mechanisms, such as basicauth, oauth2client, and sigv4auth, are OpenTelemetry extensions that the exporter references by using auth.authenticator. You must define the extension before the exporter that uses it.

Supported extensions:

Basicauth
Bearertokenauth
Sigv4auth
Spnegoauth

Configure an authenticator extension by running the following commands:

Define the extension ./obs-cloud-cli.sh add-extension --file extension.yaml
extension.yaml file:
```
basicauth/partner:
  client_auth:
    username: <username>
    password: <password>
```

Reference the extension from your exporter in the extension.yaml file.

prometheusremotewrite/partner:
  endpoint: "https://receive.example.com/api/v1/receive"
  auth:
    authenticator: basicauth/partner

You must export and verify. To export and verify, see the Exporting and verifying documentation.