Fix mis-detecting network configuration in initramfs cmdline (#844)

klibc initramfs in debian allows the 'iscsi_target_ip=' cmdline
parameter to specify an iscsi device attachment. This can
cause cloud-init to mis-detect the cmdline paramter as a
networking config.

LP: #1919188

1 files changed, 4 insertions, 2 deletions

diff --git a/cloudinit/net/cmdline.py b/cloudinit/net/cmdline.py
index cc8dc17b..7cdd428d 100755
--- a/cloudinit/net/cmdline.py
+++ b/cloudinit/net/cmdline.py
@@ -12,6 +12,7 @@ import gzip
 import io
 import logging
 import os
+import shlex
 
 from cloudinit import util
 
@@ -72,8 +73,9 @@ class KlibcNetworkConfigSource(InitramfsNetworkConfigSource):
                 (ii) an open-iscsi interface file is present in the system
         """
         if self._files:
-            if 'ip=' in self._cmdline or 'ip6=' in self._cmdline:
-                return True
+            for item in shlex.split(self._cmdline):
+                if item.startswith('ip=') or item.startswith('ip6='):
+                    return True
             if os.path.exists(_OPEN_ISCSI_INTERFACE_FILE):
                 # iBft can configure networking without ip=
                 return True