allow to use a pre-defined token

tasks/setup.yml

@@ -13,11 +13,12 @@
     api_user: "{{ corenetworks_dns_api_user | default(omit) }}"
     api_password: "{{ corenetworks_dns_api_password | default(omit) }}"
   register: __corenetworks
+  when: corenetworks_dns_token is not defined
   delegate_to: "{{ corenetworks_dns_delegate_to }}"
 
 - name: Create DNS records
   corenetworks_dns:
-    api_token: "{{ __corenetworks.session.token }}"
+    api_token: "{{ corenetworks_dns_token if corenetworks_dns_token is defined else __corenetworks.session.token }}"
     zone: "{{ item.zone | default(corenetworks_dns_default_zone) }}"
     record: "{{ item.record | default(omit) }}"
     type: "{{ item.type | default(omit) }}"