fix(net): klibc ipconfig PROTO compatibility (#5437)

klibc's ipconfig format [1] states that PROTO values 'none', 'off',
'static' and blank all mean no autoconfiguration, but cloud-init parser
is too strict and accepts only the first.

LP: #2065787

[1] https://git.kernel.org/pub/scm/libs/klibc/klibc.git/plain/usr/kinit/ipconfig/README.ipconfig

cloudinit/net/cmdline.py

@@ -127,6 +127,9 @@ def _klibc_to_config_entry(content, mac_addrs=None):
         else:
             proto = "none"
 
+    if proto in ("static", "off"):
+        proto = "none"
+
     if proto not in ("none", "dhcp", "dhcp6"):
         raise ValueError("Unexpected value for PROTO: %s" % proto)
 

tests/unittests/test_net.py

@@ -133,6 +133,37 @@
     ],
 }
 
+STATIC_CONTENT_2 = """
+DEVICE='eth1'
+PROTO='static'
+IPV4ADDR='10.0.0.2'
+IPV4BROADCAST='10.0.0.255'
+IPV4NETMASK='255.255.255.0'
+IPV4GATEWAY='10.0.0.1'
+IPV4DNS0='10.0.1.1'
+IPV4DNS1='0.0.0.0'
+HOSTNAME='foohost'
+UPTIME='21'
+DHCPLEASETIME='3600'
+DOMAINSEARCH='foo.com'
+"""
+
+STATIC_CONTENT_3 = """
+DEVICE='eth1'
+PROTO='off'
+IPV4ADDR='10.0.0.2'
+IPV4BROADCAST='10.0.0.255'
+IPV4NETMASK='255.255.255.0'
+IPV4GATEWAY='10.0.0.1'
+IPV4DNS0='10.0.1.1'
+IPV4DNS1='0.0.0.0'
+HOSTNAME='foohost'
+UPTIME='21'
+DHCPLEASETIME='3600'
+DOMAINSEARCH='foo.com'
+"""
+
+
 V1_NAMESERVER_ALIAS = """
 config:
 -   id: eno1
@@ -3763,8 +3794,12 @@ def test_cmdline_convert_dhcp6(self):
         assert found == ("eno1", DHCP6_EXPECTED_1)
 
     def test_cmdline_convert_static(self):
-        found = cmdline._klibc_to_config_entry(STATIC_CONTENT_1)
-        assert found == ("eth1", STATIC_EXPECTED_1)
+        found1 = cmdline._klibc_to_config_entry(STATIC_CONTENT_1)
+        assert found1 == ("eth1", STATIC_EXPECTED_1)
+        found2 = cmdline._klibc_to_config_entry(STATIC_CONTENT_2)
+        assert found2 == ("eth1", STATIC_EXPECTED_1)
+        found3 = cmdline._klibc_to_config_entry(STATIC_CONTENT_3)
+        assert found3 == ("eth1", STATIC_EXPECTED_1)
 
     def test_config_from_cmdline_net_cfg(self):
         files = []

tools/.github-cla-signers

@@ -7,6 +7,7 @@ afbjorklund
 ajmyyra
 akutz
 AlexBaranowski
+alexsander-souza
 AlexSv04047
 AliyevH
 Aman306