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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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test runs to the point where it did, think I got most of the changes
incorporated.
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The commit 1232 (Refactor a large part of the networking code) broke pep8.
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Let's reduce the size of this change for now.
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if you provide network state with a proper 'lo' entry, then
when you render network interfaces you would get 2 entries.
the additional one was because we add an 'lo' always and also because
we had to put global 'dns' entries there.
this fixes that duplicatation by handling lo specifically.
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'id' on a link in the openstack spec should be "Generic, generated ID".
current implementation was to use the host's name for the host
side nic. Which provided names like 'tap-adfasdffd'.
We do not want to name devices like that as its quite unexpected
and non user friendly. So here we use the system name for any
nic that is present, but then require that the nics found also
be present at the time of rendering.
The end result is that if the system boots with net.ifnames=0
then it will get 'eth0' like names. and if it boots without net.ifnames
then it will get enp0s1 like names.
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this adds ability to support ENI that has:
hwadress ether 36:4c:e1:3b:14:31
or
hwaddress 36:4c:e1:3b:14:31
the former is written by openstack (at least on dreamhost).
Also, in the conversion of eni to network config support broadcast
and netmask.
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The one issue i'm aware of currently is that tap devices
(ip tuntap add mode tap user root mytap1)
do not work correctly with 'is_up' which means the check
does not bring them down and the rename fails.
The LOG.debug message should be cleaned up too, as it currently
references the function rather function.__name__ for nicer message.
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