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* Primarily improved grammar for clarity.
* A few Sphinx/RST syntax fixes.
* Set text width to 79 characters per footer documentation
where needed.
* Changed "yaml" to "YAML" when used in sentences.
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This proposal has been aligned in a human readable.
There are no changes to this except for spac
The indentation size is not specifically defined in the YAML RFC
$ make yaml has passed on my-machine
I set the indentation size to the largest number of articles in the repository (dictionary: 2)
(And also include nishigori as a CLA signer.)
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Add support for rendering secondary static IPv4/IPv6 addresses on
any NIC attached to the machine. In order to see secondary IP
addresses in Ec2 IMDS network config, cloud-init now reads metadata
version 2018-09-24. Metadata services which do not support the Ec2
API version will not get secondary IP addresses configured.
In order to discover secondary IP address config, cloud-init now
relies on metadata API Parse local-ipv4s, ipv6s,
subnet-ipv4-cidr-block and subnet-ipv6-cidr-block metadata keys to
determine additional IPs and appropriate subnet prefix to set for a
nic.
Also add the datasource config option apply_full_imds_netork_config
which defaults to true to allow cloud-init to automatically configure
secondary IP addresses. Setting this option to false will tell
cloud-init to avoid setting up secondary IP addresses.
Also in this branch:
- Shift Ec2 datasource to emit network config v2 instead of v1.
LP: #1866930
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AWS EC2 instances' network come in 2 basic flavors: Classic and VPC
(Virtual Private Cloud). The former has an interesting behavior of having
its MAC address changed whenever the instance is stopped/restarted. This
behavior is not observed in VPC instances.
In Ubuntu 18.04 (Bionic) the network "management" changed from ENI-style
(etc/network/interfaces) to netplan, and when using netplan we observe
the following block present in /etc/netplan/50-cloud-init.yaml:
match:
macaddress: aa:bb:cc:dd:ee:ff
Jani Ollikainen noticed in Launchpad bug #1802073 that the EC2 Classic
instances were booting without network access in Bionic after stop/restart
procedure, due to their MAC address change behavior. It was narrowed down
to the netplan MAC match block, that kept the old MAC address after
stopping and restarting an instance, since the network configuration
writing happens by default only once in EC2 instances, in the first boot.
This patch changes the network configuration write to every boot in EC2
Classic instances, by checking against the "vpc-id" metadata information
provided only in the VPC instances - if we don't have this metadata value,
cloud-init will rewrite the network configuration file in every boot.
This was tested in an EC2 Classic instance and proved to fix the issue;
unit tests were also added for the new method is_classic_instance().
LP: #1802073
Reported-by: Jani Ollikainen <jani.ollikainen@ik.fi>
Suggested-by: Ryan Harper <ryan.harper@canonical.com>
Co-developed-by: Chad Smith <chad.smith@canonical.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
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Also document instance-data.json on the top-level datasource topic page.
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Add documentation for cloud-init networking configuration formats, default
behavior, policy and other specific details about how network config is
consumed and utilized.
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The biggest things here are:
* move doc/sources/*/README.rst to doc/rtd/topics/datasources
This gives each datasource a page in the rtd docs, which make
it easier to read.
* consistently use the same header style throughout.
As suggested at
http://thomas-cokelaer.info/tutorials/sphinx/rest_syntax.html
use:
# with overline, for parts
* with overline, for chapters
=, for sections
-, for subsections
^, for subsubsections
“, for paragraphs
Also, move and re-format vendor-data documentation to rtd.
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