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From 51a90ecbdf1f3900183d8ec641eeb4571decf6dc Mon Sep 17 00:00:00 2001
From: Eduardo Otubo <otubo@redhat.com>
Date: Wed, 4 Nov 2020 12:37:54 +0100
Subject: [PATCH] network: Fix type and respect name when rendering vlan in
sysconfig. (#541)
RH-Author: Eduardo Terrell Ferrari Otubo (eterrell)
RH-MergeRequest: 19: network: Fix type and respect name when rendering vlan in sysconfig. (#541)
RH-Commit: [1/1] 75bea46017397082c5763125a5f35806c2f840e9 (eterrell/cloud-init)
RH-Bugzilla: 1881462
commit 8439b191ec2f336d544cab86dba2860f969cd5b8
Author: Eduardo Otubo <otubo@redhat.com>
Date: Tue Sep 15 18:00:00 2020 +0200
network: Fix type and respect name when rendering vlan in sysconfig. (#541)
Prior to this change, vlans were rendered in sysconfig with
'TYPE=Ethernet', and incorrectly rendered the PHYSDEV based on
the name of the vlan device rather than the 'link' provided
in the network config.
The change here fixes:
* rendering of TYPE=Ethernet for a vlan
* adds a warning if the configured device name is not supported
per the RHEL 7 docs "11.5. Naming Scheme for VLAN Interfaces"
LP: #1788915
LP: #1826608
RHBZ: #1861871
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
---
cloudinit/net/sysconfig.py | 32 +++++++++-
tests/unittests/test_distros/test_netconfig.py | 81 ++++++++++++++++++++++++++
tests/unittests/test_net.py | 4 --
3 files changed, 112 insertions(+), 5 deletions(-)
diff --git a/cloudinit/net/sysconfig.py b/cloudinit/net/sysconfig.py
index c078898..078636a 100644
--- a/cloudinit/net/sysconfig.py
+++ b/cloudinit/net/sysconfig.py
@@ -99,6 +99,10 @@ class ConfigMap(object):
def __len__(self):
return len(self._conf)
+ def skip_key_value(self, key, val):
+ """Skip the pair key, value if it matches a certain rule."""
+ return False
+
def to_string(self):
buf = io.StringIO()
buf.write(_make_header())
@@ -106,6 +110,8 @@ class ConfigMap(object):
buf.write("\n")
for key in sorted(self._conf.keys()):
value = self._conf[key]
+ if self.skip_key_value(key, value):
+ continue
if isinstance(value, bool):
value = self._bool_map[value]
if not isinstance(value, str):
@@ -214,6 +220,7 @@ class NetInterface(ConfigMap):
'bond': 'Bond',
'bridge': 'Bridge',
'infiniband': 'InfiniBand',
+ 'vlan': 'Vlan',
}
def __init__(self, iface_name, base_sysconf_dir, templates,
@@ -267,6 +274,11 @@ class NetInterface(ConfigMap):
c.routes = self.routes.copy()
return c
+ def skip_key_value(self, key, val):
+ if key == 'TYPE' and val == 'Vlan':
+ return True
+ return False
+
class Renderer(renderer.Renderer):
"""Renders network information in a /etc/sysconfig format."""
@@ -701,7 +713,16 @@ class Renderer(renderer.Renderer):
iface_cfg['ETHERDEVICE'] = iface_name[:iface_name.rfind('.')]
else:
iface_cfg['VLAN'] = True
- iface_cfg['PHYSDEV'] = iface_name[:iface_name.rfind('.')]
+ iface_cfg.kind = 'vlan'
+
+ rdev = iface['vlan-raw-device']
+ supported = _supported_vlan_names(rdev, iface['vlan_id'])
+ if iface_name not in supported:
+ LOG.info(
+ "Name '%s' for vlan '%s' is not officially supported"
+ "by RHEL. Supported: %s",
+ iface_name, rdev, ' '.join(supported))
+ iface_cfg['PHYSDEV'] = rdev
iface_subnets = iface.get("subnets", [])
route_cfg = iface_cfg.routes
@@ -909,6 +930,15 @@ class Renderer(renderer.Renderer):
"\n".join(netcfg) + "\n", file_mode)
+def _supported_vlan_names(rdev, vid):
+ """Return list of supported names for vlan devices per RHEL doc
+ 11.5. Naming Scheme for VLAN Interfaces."""
+ return [
+ v.format(rdev=rdev, vid=int(vid))
+ for v in ("{rdev}{vid:04}", "{rdev}{vid}",
+ "{rdev}.{vid:04}", "{rdev}.{vid}")]
+
+
def available(target=None):
sysconfig = available_sysconfig(target=target)
nm = available_nm(target=target)
diff --git a/tests/unittests/test_distros/test_netconfig.py b/tests/unittests/test_distros/test_netconfig.py
index f9fc3a1..a1df066 100644
--- a/tests/unittests/test_distros/test_netconfig.py
+++ b/tests/unittests/test_distros/test_netconfig.py
@@ -541,6 +541,87 @@ class TestNetCfgDistroRedhat(TestNetCfgDistroBase):
V1_NET_CFG_IPV6,
expected_cfgs=expected_cfgs.copy())
+ def test_vlan_render_unsupported(self):
+ """Render officially unsupported vlan names."""
+ cfg = {
+ 'version': 2,
+ 'ethernets': {
+ 'eth0': {'addresses': ["192.10.1.2/24"],
+ 'match': {'macaddress': "00:16:3e:60:7c:df"}}},
+ 'vlans': {
+ 'infra0': {'addresses': ["10.0.1.2/16"],
+ 'id': 1001, 'link': 'eth0'}},
+ }
+ expected_cfgs = {
+ self.ifcfg_path('eth0'): dedent("""\
+ BOOTPROTO=none
+ DEVICE=eth0
+ HWADDR=00:16:3e:60:7c:df
+ IPADDR=192.10.1.2
+ NETMASK=255.255.255.0
+ NM_CONTROLLED=no
+ ONBOOT=yes
+ TYPE=Ethernet
+ USERCTL=no
+ """),
+ self.ifcfg_path('infra0'): dedent("""\
+ BOOTPROTO=none
+ DEVICE=infra0
+ IPADDR=10.0.1.2
+ NETMASK=255.255.0.0
+ NM_CONTROLLED=no
+ ONBOOT=yes
+ PHYSDEV=eth0
+ USERCTL=no
+ VLAN=yes
+ """),
+ self.control_path(): dedent("""\
+ NETWORKING=yes
+ """),
+ }
+ self._apply_and_verify(
+ self.distro.apply_network_config, cfg,
+ expected_cfgs=expected_cfgs)
+
+ def test_vlan_render(self):
+ cfg = {
+ 'version': 2,
+ 'ethernets': {
+ 'eth0': {'addresses': ["192.10.1.2/24"]}},
+ 'vlans': {
+ 'eth0.1001': {'addresses': ["10.0.1.2/16"],
+ 'id': 1001, 'link': 'eth0'}},
+ }
+ expected_cfgs = {
+ self.ifcfg_path('eth0'): dedent("""\
+ BOOTPROTO=none
+ DEVICE=eth0
+ IPADDR=192.10.1.2
+ NETMASK=255.255.255.0
+ NM_CONTROLLED=no
+ ONBOOT=yes
+ TYPE=Ethernet
+ USERCTL=no
+ """),
+ self.ifcfg_path('eth0.1001'): dedent("""\
+ BOOTPROTO=none
+ DEVICE=eth0.1001
+ IPADDR=10.0.1.2
+ NETMASK=255.255.0.0
+ NM_CONTROLLED=no
+ ONBOOT=yes
+ PHYSDEV=eth0
+ USERCTL=no
+ VLAN=yes
+ """),
+ self.control_path(): dedent("""\
+ NETWORKING=yes
+ """),
+ }
+ self._apply_and_verify(
+ self.distro.apply_network_config, cfg,
+ expected_cfgs=expected_cfgs)
+
class TestNetCfgDistroOpensuse(TestNetCfgDistroBase):
diff --git a/tests/unittests/test_net.py b/tests/unittests/test_net.py
index d7a7a65..c033745 100644
--- a/tests/unittests/test_net.py
+++ b/tests/unittests/test_net.py
@@ -1656,7 +1656,6 @@ pre-down route del -net 10.0.0.0/8 gw 11.0.0.1 metric 3 || true
DHCLIENT_SET_DEFAULT_ROUTE=no
ONBOOT=yes
PHYSDEV=bond0
- TYPE=Ethernet
USERCTL=no
VLAN=yes"""),
'ifcfg-br0': textwrap.dedent("""\
@@ -1699,7 +1698,6 @@ pre-down route del -net 10.0.0.0/8 gw 11.0.0.1 metric 3 || true
NETMASK1=255.255.255.0
ONBOOT=yes
PHYSDEV=eth0
- TYPE=Ethernet
USERCTL=no
VLAN=yes"""),
'ifcfg-eth1': textwrap.dedent("""\
@@ -2302,7 +2300,6 @@ iface bond0 inet6 static
NETMASK1=255.255.255.0
ONBOOT=yes
PHYSDEV=en0
- TYPE=Ethernet
USERCTL=no
VLAN=yes"""),
},
@@ -3409,7 +3406,6 @@ USERCTL=no
NM_CONTROLLED=no
ONBOOT=yes
PHYSDEV=eno1
- TYPE=Ethernet
USERCTL=no
VLAN=yes
""")
--
1.8.3.1
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