cloud-init/SOURCES/ci-Azure-adding-support-for-consuming-userdata-from-IMD.patch
2022-05-10 08:01:31 +00:00

130 lines
4.9 KiB
Diff

From c0df7233fa99d4191b5d4142e209e7465d8db5f6 Mon Sep 17 00:00:00 2001
From: Anh Vo <anhvo@microsoft.com>
Date: Tue, 27 Apr 2021 13:40:59 -0400
Subject: [PATCH 7/7] Azure: adding support for consuming userdata from IMDS
(#884)
RH-Author: Eduardo Otubo <otubo@redhat.com>
RH-MergeRequest: 45: Add support for userdata on Azure from IMDS
RH-Commit: [7/7] 32f840412da1a0f49b9ab5ba1d6f1bcb1bfacc16
RH-Bugzilla: 2023940
RH-Acked-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
RH-Acked-by: Mohamed Gamal Morsy <mmorsy@redhat.com>
---
cloudinit/sources/DataSourceAzure.py | 23 ++++++++-
tests/unittests/test_datasource/test_azure.py | 50 +++++++++++++++++++
2 files changed, 72 insertions(+), 1 deletion(-)
diff --git a/cloudinit/sources/DataSourceAzure.py b/cloudinit/sources/DataSourceAzure.py
index d0be6d84..a66f023d 100755
--- a/cloudinit/sources/DataSourceAzure.py
+++ b/cloudinit/sources/DataSourceAzure.py
@@ -83,7 +83,7 @@ AGENT_SEED_DIR = '/var/lib/waagent'
IMDS_TIMEOUT_IN_SECONDS = 2
IMDS_URL = "http://169.254.169.254/metadata"
IMDS_VER_MIN = "2019-06-01"
-IMDS_VER_WANT = "2020-10-01"
+IMDS_VER_WANT = "2021-01-01"
# This holds SSH key data including if the source was
@@ -539,6 +539,20 @@ class DataSourceAzure(sources.DataSource):
imds_disable_password
)
crawled_data['metadata']['disable_password'] = imds_disable_password # noqa: E501
+
+ # only use userdata from imds if OVF did not provide custom data
+ # userdata provided by IMDS is always base64 encoded
+ if not userdata_raw:
+ imds_userdata = _userdata_from_imds(imds_md)
+ if imds_userdata:
+ LOG.debug("Retrieved userdata from IMDS")
+ try:
+ crawled_data['userdata_raw'] = base64.b64decode(
+ ''.join(imds_userdata.split()))
+ except Exception:
+ report_diagnostic_event(
+ "Bad userdata in IMDS",
+ logger_func=LOG.warning)
found = cdev
report_diagnostic_event(
@@ -1512,6 +1526,13 @@ def _username_from_imds(imds_data):
return None
+def _userdata_from_imds(imds_data):
+ try:
+ return imds_data['compute']['userData']
+ except KeyError:
+ return None
+
+
def _hostname_from_imds(imds_data):
try:
return imds_data['compute']['osProfile']['computerName']
diff --git a/tests/unittests/test_datasource/test_azure.py b/tests/unittests/test_datasource/test_azure.py
index c4a8e08d..f8433690 100644
--- a/tests/unittests/test_datasource/test_azure.py
+++ b/tests/unittests/test_datasource/test_azure.py
@@ -1899,6 +1899,56 @@ scbus-1 on xpt0 bus 0
dsrc.get_data()
self.assertTrue(dsrc.metadata["disable_password"])
+ @mock.patch(MOCKPATH + 'get_metadata_from_imds')
+ def test_userdata_from_imds(self, m_get_metadata_from_imds):
+ sys_cfg = {'datasource': {'Azure': {'apply_network_config': True}}}
+ odata = {'HostName': "myhost", 'UserName': "myuser"}
+ data = {
+ 'ovfcontent': construct_valid_ovf_env(data=odata),
+ 'sys_cfg': sys_cfg
+ }
+ userdata = "userdataImds"
+ imds_data = copy.deepcopy(NETWORK_METADATA)
+ imds_data["compute"]["osProfile"] = dict(
+ adminUsername="username1",
+ computerName="hostname1",
+ disablePasswordAuthentication="true",
+ )
+ imds_data["compute"]["userData"] = b64e(userdata)
+ m_get_metadata_from_imds.return_value = imds_data
+ dsrc = self._get_ds(data)
+ ret = dsrc.get_data()
+ self.assertTrue(ret)
+ self.assertEqual(dsrc.userdata_raw, userdata.encode('utf-8'))
+
+ @mock.patch(MOCKPATH + 'get_metadata_from_imds')
+ def test_userdata_from_imds_with_customdata_from_OVF(
+ self, m_get_metadata_from_imds):
+ userdataOVF = "userdataOVF"
+ odata = {
+ 'HostName': "myhost", 'UserName': "myuser",
+ 'UserData': {'text': b64e(userdataOVF), 'encoding': 'base64'}
+ }
+ sys_cfg = {'datasource': {'Azure': {'apply_network_config': True}}}
+ data = {
+ 'ovfcontent': construct_valid_ovf_env(data=odata),
+ 'sys_cfg': sys_cfg
+ }
+
+ userdataImds = "userdataImds"
+ imds_data = copy.deepcopy(NETWORK_METADATA)
+ imds_data["compute"]["osProfile"] = dict(
+ adminUsername="username1",
+ computerName="hostname1",
+ disablePasswordAuthentication="true",
+ )
+ imds_data["compute"]["userData"] = b64e(userdataImds)
+ m_get_metadata_from_imds.return_value = imds_data
+ dsrc = self._get_ds(data)
+ ret = dsrc.get_data()
+ self.assertTrue(ret)
+ self.assertEqual(dsrc.userdata_raw, userdataOVF.encode('utf-8'))
+
class TestAzureBounce(CiTestCase):
--
2.27.0