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+.. _datasource_upcloud:
+
+UpCloud
+=============
+
+The `UpCloud`_ datasource consumes information from UpCloud's `metadata
+service`_. This metadata service serves information about the
+running server via HTTP over the address 169.254.169.254 available in every
+DHCP-configured interface. The metadata API endpoints are fully described in
+UpCloud API documentation at
+`https://developers.upcloud.com/1.3/8-servers/#metadata-service
+<https://developers.upcloud.com/1.3/8-servers/#metadata-service>`_.
+
+Providing user-data
+-------------------
+
+When creating a server, user-data is provided by specifying it as `user_data`
+in the API or via the server creation tool in the control panel. User-data is
+immutable during server's lifetime and can be removed by deleting the server.
+
+.. _UpCloud: https://upcloud.com/
+.. _metadata service: https://upcloud.com/community/tutorials/upcloud-metadata-service/
+
+.. vi: textwidth=78