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Since f38fa413176, default routes get added to both ifcfg-* and route-*
and route6-* files. Default routes should only go to ifcfg-* files,
otherwise the information is redundant.
LP: #1696176
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The code deciding which interface to choose as the default to request the
IP address through DHCP does not sort the interfaces correctly. On Ubuntu
Xenial images for example, the interfaces are named ens1, ens2, ens3...,
ens11, ... depending on the pci bus address. The python sorting will list
'ens11' before 'ens3' for example despite the fact that 'ens3' should be
before 'ens11'.
This patch address this issue and sort the interface names according to a
human sorting.
Signed-off-by: Marc-Aurèle Brothier <m@brothier.org>
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There are a few bridge parameters which require repeating the key with each
value in the list when rendering eni. Extend the network unittests to cover
all of the known bridge parameters and check we render eni and netplan
correctly.
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During the network v2 merge, we inadvertently re-enabled rendering systemd
.link files. This files are not required as cloud-init already has to do
interface renaming due to issues with udevd which may refuse to rename
certain interfaces (such as veth devices in a LXD container). As such,
removing the code altogether.
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Input (specifically OpenStack) that had:
"ip_address" : "104.130.20.155",
"netmask" : "255.255.255.0"
Was being rendered to netplan as '104.130.20.155/255.255.255.0'.
That is now fixed to '104.130.20.155/24'
Also fixed is reading of a route that had a network prefix integer
in the 'netmask' rather than a netmask.
LP: #1689346
LP: #1684349
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As some of the bond paramemters are passed in as dashed, or
underscored, depending on the input source.
Also correct transmit-hash-policy netplan target key.
LP: #1690480
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Dual stack IPv4/IPv6 configuration via config drive is broken for RHEL7.
This patch fixes several scenarios for IPv4/IPv6/dual-stack with multiple
IP assignment.
Removes usage of unpopular IPv4 alias files and invalid IPv6 alias files.
Also fix associated unit tests.
LP: #1679817
LP: #1685534
LP: #1685532
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Some interfaces (greptap0 in the bug) have a mac address of
'00:00:00:00:00:00'. That was causing a duplicate mac detection
as the 'lo' device also has that mac.
The change here is to just ignore macs other than 'lo' that have that.
LP: #1692028
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When vlan mac address is specified in config, render it for
netplan and for ENI.
LP: #1690388
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tools/net-convert fails to output netplan config, because the
positional arguments of render_network_state are the wrong way around
for that function w.r.t. other renders.
Fix the netplan renderer to have the correct signature.
LP: #1685944
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Recent core snap images (edge channel revision 1886) do not contain the
previously known files used to detect that a system is ubuntu core.
The changes here are to look in 2 additional locations to determine
if a system is snappy.
LP: #1689944
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If /run/net-<name>.cfg contains an IPV4ADDR or an IPV6ADDR, the config
file generated by _klibc_to_config_entry now contains the "address".
LP: #1691135
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Fixed setting Route.has_set_default_ipv6 or *_ipv4 to track whether a
route already has a default gateway defined. The code was setting
Route.has_set_default which wasn't checked when raising "duplicate
gateway" ValueErrors. Added unit tests to exercise this expected raised
ValueError. Also moved is_ipv6 = subnet.get('ipv6') logic out of a for
loop because we don't need to recalculate the same value every route
iteration.
LP: #1687485
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This will change all instances of LOG.warn to LOG.warning as warn
is now a deprecated method. It will also make sure any logging
uses lazy logging by passing string format arguments as function
parameters.
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Introduce is_vlan function and call that when building dictionary of
interfaces by mac address.
LP: #1682871
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When cloud-init ran in the init stage (after networking had come up).
A bug could occur where cloud-init would attempt and fail to rename
network devices that had "inherited" mac addresses.
The intent of apply_network_config_names was always to rename only
the devices that were "physical" per the network config. (This would
include veth devices in a container). The bug was in creating
the dictionary of interfaces by mac address. If there were multiple
interfaces with the same mac address then renames could fail.
This situation was guaranteed to occur with bonds or vlans or other
devices that inherit their mac.
The solution is to change get_interfaces_by_mac to skip interfaces
that have an inherited mac.
Also drop the 'devs' argument to get_interfaces_by_mac. It was
non-obvious what the result should be if a device in the input
list was filtered out. ie should the following have an entry for
bond0 or not. get_interfaces_by_mac(devs=['bond0'])
LP: #1669860
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When rendering network configuration to netplan, remove known
"builtin" configurations. The specific example here is Ubuntu Core
that has netplan configuration in etc/netplan/00-snapd-config.yaml.
We also delete the derived files since netplan will have created
these derived files in its generator that runs well before cloud-init.
LP: #1675576
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Remove debugging print statements. Change a few to use
logging.debug() where useful.
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Now tox will run pylint. The .pylintrc file sets pylint to only produce
errors, and will ignore certain classes that are known problematic (six).
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Network configuration version 2 format is implemented in a package
called netplan (nplan)[1] which allows consolidated network config
for multiple network controllers.
- Add a new netplan renderer
- Update default policy, placing eni and sysconfig first
This requires explicit policy to enable netplan over eni
on systems which have both (Yakkety, Zesty, UC16)
- Allow any network state (parsed from any format cloud-init supports) to
render to v2 if system supports netplan.
- Move eni's _subnet_is_ipv6 to common code for use by other renderers
- Make sysconfig renderer always emit /etc/syconfig/network configuration
- Update cloud-init.service systemd unit to also wait on
systemd-networkd-wait-online.service
1. https://lists.ubuntu.com/archives/ubuntu-devel/2016-July/039464.html
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Previous commit introduced a regression by calling os.path.is_file, a
non-existent function. This changes that call to use os.path.isfile.
LP: #1674317
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Previously, the distro had hard coded which network renderer it would
use. This adds support for just picking the right renderer based
on what is available.
Now, that can be set via a priority in system_info, but should
generally work. That config looks like:
system_info:
network:
renderers: ["eni", "sysconfig"]
When no renderers are found, a specific RendererNotFoundError is raised.
stages.py is modified to catch that and log it at error level. This
path should not really be exercised, but could occur if for example an
Ubuntu system did not have ifupdown, or a rhel system did not have
sysconfig. In such a system previously we would have quietly rendered
ENI configuration but that would have been ignored. This is one step
better in that we at least log the error.
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render_network_state should default to rendering on /.
The changes here just make it so render_network_state does not
require a target, but defaults to None, and uses target_path
to handle that.
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As reported in bug 1671927, sysconfig had an issue with rendering
a loopback device. The problem was that some as yet unknown issue was
causing the openstack config drive to parse the provided ENI file rather
than reading the network_data.json. Parsing an ENI file would add a
a 'lo' device of type 'physical', and sysconfig was failing to render
that.
The change here is:
a.) add a 'loopback' type rather than 'physical' for network config.
{'name': 'lo', 'type': 'loopback', 'subnets': ['type': 'loopback']}
b.) support skipping that type in the eni and sysconfig renderers.
c.) make network_state just piggy back on 'physical' renderer for
loopback (this was what was happening before).
Tests are added for eni and sysconfig renderer.
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Previously, cloud-init would throw an exception if an interface had
both ipv4 and ipv6 addresses and a default gateway for each address
family. This change allows cloud-init to correctly configure
interfaces in this situation.
LP: #1669504
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There were some logic errors in sysconfig.py that appear to be the
result of accidentally typing "iface" where it should have been
"iface_cfg". This patch corrects those problems so that the module
can run successfully.
LP: #1665441
Resolves: rhbz#1389530
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The iface:alias syntax for eni rendering is brittle with ipv6.
Replace it with using multiple iface stanzas with the same iface
name which is supported. Side-effect is that one can no longer
do 'ifup $iface:$alias' but requires instead use of ip address
{add|delete} instead.
LP: #1657940
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This has been a recurring ask and we had initially just made the change to
the cloud-init 2.0 codebase. As the current thinking is we'll just
continue to enhance the current codebase, its desirable to relicense to
match what we'd intended as part of the 2.0 plan here.
- put a brief description of license in LICENSE file
- put full license versions in LICENSE-GPLv3 and LICENSE-Apache2.0
- simplify the per-file header to reference LICENSE
- tox: ignore H102 (Apache License Header check)
Add license header to files that ship.
Reformat headers, make sure everything has vi: at end of file.
Non-shipping files do not need the copyright header,
but at the moment tests/ have it.
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I've seen cases of unable to read from files as
well as the existing os errors so catch io error
and skip by using the smarter read_sys_net instead.
LP: #1625766
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The previous behavior would miss ip6= on the command line and
would not pay attention to the written net-* or net6-* files if
only ip6= was found.
The fix here enables parsing the files if either ip= or ip6= is found,
and adds some tests as well.
LP: #1639930
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The implementation to add ipv6 support to Ubuntu initramfs changed
(see bug 1621507). The changes here adjust to handle the new path.
Now, the ipv6 route includes using the variable 'DEVICE6' in
net6-DEVICE.conf files.
LP: #1621615
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This adds support for understanding 'dhcp6' as a protocol
that can be written into /run/net-IFACE.cfg files by the initramfs.
The end result is supporting ipv6 dhcp from initramfs boot
all the way into iscsi root.
LP: #1621615, #1621507
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The OpenStack network_data.json does not provide a name for bond links.
This change makes it so a dummy one is generated and used instead
to satisfy cloud-init which does require one.
In order to write the correct link (underlying 'link' names)
for the bonds, we maintain a list of info by ids so we can easily
get the right device name.
Also:
* add a vlan test case that similarly references an id rather than name.
* make bond interfaces auto
LP: #1605749
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When using get_interface_mac, on a system with bond slaves, it would
return the bond_master's address. That isn't expected, and causes
problems in a caller like get_interfaces_by_mac which would then seem to
find duplicate macs on the system.
Additionally, in read_sys_net catch a errno.ENOTDIR error as ENOENT.
Opening a path as a file that has <existing_file>/anything will will raise
ENOTDIR rather than ENOENT. This handles that case in read_sys_net as a
if the file did not exist.
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this merges in the render_hwaddress support.
newly added tests still run, so hwaddress seems correctly getting in.
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Previous commit disabled the consumption of 'injected' files in
configdrive (openstack server boot --file=/target/file=local-file)
unless the datasource was in 'pass' mode. The default mode is 'net'
so that would never happen.
Also here are:
a.) a fix for 'links_path_prefix' string from debian, to finally
disable the rendering of systemd.link files (LP: #1594546)
b.) some comments to apply_network_config
c.) implement a backwards compatibility for for distros that do
not yet implement apply_network_config by converting the network
config into ENI format and calling apply_network.
This is required because prior to the previous commit, those distros
would have had 'apply_network' called with the openstack provided
ENI file. But after this change they will have apply_network_config
called by cloudinit's main.
d.) a network_state_to_eni helper for converting net config to eni
it supports the not-actually-correct 'hwaddress' field in ENI.
LP: #1602373
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[copied from curtin revno 390]
Apply two separate fixes for configuring bonding with ip aliases.
Curtin re-used the interface's inet value for each subnet that might
be configured. In the case where the configuration included an ipv4
address after an ipv6 one resulted in emitting 'inet6' for ipv4 address
which is not correct. Resolve this issue by calculating the inet
value independent of the current status of the iface, using the subnet
config instead.
When rendering a network_config which includes ip alias interfaces
do not emit any attributes, like MTU, or bond/bridge options Including
these values is almost always wrong or will result in confusing
behavior on the target system.
LP: #1588547
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Fix the lack of per-interface routes, and add an example to yaml.
in revno 394 in curtin, we added post-up for interface aliases.
bring that commit here.
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