ecodina opened a new pull request, #59411:
URL: https://github.com/apache/airflow/pull/59411
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closes: #59286
This PR implements the client_credentials grant flow to enable other
services use of the Airflow API.
It adds `POST /auth/token/client-credentials` which requires passing the
`client_id` and `client_secret` in order to obtain the token for the associated
service account.
The `client` used must exist in the same realm and instance configured for
the auth manager. The service account must have the appropriate permissions /
roles for the resources it needs access.
I've tested obtaining the token and using it with
`airflow.sdk.api.client.Client` and it works.
Some considerations:
1. According to RFC6749 section 4.4.3, when using this flow, the user should
not have a refresh token, so we need to handle that in the `refresh_user`
method.
2. I haven't tested this using `airflowctl`, but it should work by setting
the env variable `AIRFLOW_CLI_TOKEN` with the obtained token.
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