Add Hetzner Cloud DataSource

The Hetzner Cloud metadata service is an AWS-style service available
over HTTP via the link local address 169.254.169.254.

https://hetzner.com/cloud
https://docs.hetzner.cloud/

1 files changed, 26 insertions, 0 deletions

diff --git a/cloudinit/sources/helpers/hetzner.py b/cloudinit/sources/helpers/hetzner.py
new file mode 100644
index 00000000..2554530d
--- /dev/null
+++ b/cloudinit/sources/helpers/hetzner.py
@@ -0,0 +1,26 @@
+# Author: Jonas Keidel <jonas.keidel@hetzner.com>
+# Author: Markus Schade <markus.schade@hetzner.com>
+#
+# This file is part of cloud-init. See LICENSE file for license information.
+
+from cloudinit import log as logging
+from cloudinit import url_helper
+from cloudinit import util
+
+LOG = logging.getLogger(__name__)
+
+
+def read_metadata(url, timeout=2, sec_between=2, retries=30):
+    response = url_helper.readurl(url, timeout=timeout,
+                                  sec_between=sec_between, retries=retries)
+    if not response.ok():
+        raise RuntimeError("unable to read metadata at %s" % url)
+    return util.load_yaml(response.contents.decode())
+
+
+def read_userdata(url, timeout=2, sec_between=2, retries=30):
+    response = url_helper.readurl(url, timeout=timeout,
+                                  sec_between=sec_between, retries=retries)
+    if not response.ok():
+        raise RuntimeError("unable to read userdata at %s" % url)
+    return response.contents