Feature 10981: enable REST API in Airflow

Change-Id: Iaae27b9917d8cc35bae6e67cce59bef3e9bd8b41
Signed-off-by: aguilard <e.dah.tid@telefonica.com>
diff --git a/installers/helm/values/airflow-values.yaml b/installers/helm/values/airflow-values.yaml
index 0794750..79473aa 100644
--- a/installers/helm/values/airflow-values.yaml
+++ b/installers/helm/values/airflow-values.yaml
@@ -22,6 +22,9 @@
       - name: airflow-ui
         port: "{{ .Values.ports.airflowUI }}"
         targetPort: "{{ .Values.ports.airflowUI }}"
+extraEnv: |
+  - name: AIRFLOW__API__AUTH_BACKENDS
+    value: 'airflow.api.auth.backend.basic_auth'
 extraEnvFrom: |
   - secretRef:
       name: ngsa-secret