.. _datasource_aliyun: Alibaba Cloud (AliYun) ====================== The ``AliYun`` datasource reads data from Alibaba Cloud ECS. Support is present in cloud-init since 0.7.9. Metadata Service ---------------- The Alibaba Cloud metadata service is available at the well known url ``http://100.100.100.200/``. For more information see Alibaba Cloud ECS on `metadata `__. Versions ^^^^^^^^ Like the EC2 metadata service, Alibaba Cloud's metadata service provides versioned data under specific paths. As of April 2018, there are only ``2016-01-01`` and ``latest`` versions. It is expected that the dated version will maintain a stable interface but ``latest`` may change content at a future date. Cloud-init uses the ``2016-01-01`` version. You can list the versions available to your instance with: .. code-block:: shell-session $ curl http://100.100.100.200/ 2016-01-01 latest Metadata ^^^^^^^^ Instance metadata can be queried at ``http://100.100.100.200/2016-01-01/meta-data`` .. code-block:: shell-session $ curl http://100.100.100.200/2016-01-01/meta-data dns-conf/ eipv4 hostname image-id instance-id instance/ mac network-type network/ ntp-conf/ owner-account-id private-ipv4 public-keys/ region-id serial-number source-address sub-private-ipv4-list vpc-cidr-block vpc-id Userdata ^^^^^^^^ If provided, user-data will appear at ``http://100.100.100.200/2016-01-01/user-data``. If no user-data is provided, this will return a 404. .. code-block:: shell-session $ curl http://100.100.100.200/2016-01-01/user-data #!/bin/sh echo "Hello World." .. vi: textwidth=78