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This just got missed in the IBMCloud datasource addition.
Add it to the builtin list of datasources.
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The Hetzner Cloud metadata service is an AWS-style service available
over HTTP via the link local address 169.254.169.254.
https://hetzner.com/cloud
https://docs.hetzner.cloud/
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This moves the base test case classes into into cloudinit/tests and
updates all the corresponding imports.
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This branch is a prerequisite for IPv6 support in AWS by allowing Ec2
datasource to query the metadata source version 2016-09-02 about whether
or not it needs to configure IPv6 on interfaces. If version 2016-09-02
is not present, fallback to the min_metadata_version of 2009-04-04. The
DataSourceEc2Local not run on FreeBSD because dhclient in doesn't
support the -sf flag allowing us to run dhclient without filesystem
side-effects.
To query AWS' metadata address @ 169.254.169.254, the instance must have
a dhcp-allocated address configured. Configuring IPv4 link-local
addresses result in timeouts from the metadata service. We introduced a
DataSourceEc2Local subclass which will perform a sandboxed dhclient
discovery which obtains an authorized IP address on eth0 and crawl
metadata about full instance network configuration.
Since ec2 IPv6 metadata is not sufficient in itself to tell us all the
ipv6 knownledge we need, it only be used as a boolean to tell us which
nics need IPv6. Cloud-init will then configure desired interfaces to
DHCPv6 versus DHCPv4.
Performance side note: Shifting the dhcp work into init-local for Ec2
actually gets us 1 second faster deployments by skipping init-network
phase of alternate datasource checks because Ec2Local is configured in
an ealier boot stage. In 3 test runs prior to this change: cloud-init
runs were 5.5 seconds, with the change we now average 4.6 seconds.
This efficiency could be even further improved if we avoiding dhcp
discovery in order to talk to the metadata service from an AWS
authorized dhcp address if there were some way to advertize the dhcp
configuration via DMI/SMBIOS or system environment variables.
Inspecting time costs of the dhclient setup/teardown in 3 live runs the
time cost for the dhcp setup round trip on AWS is:
test 1: 76 milliseconds
dhcp discovery + metadata: 0.347 seconds
metadata alone: 0.271 seconds
test 2: 88 milliseconds
dhcp discovery + metadata: 0.388 seconds
metadata alone: 0.300 seconds
test 3: 75 milliseconds
dhcp discovery + metadata: 0.366 seconds
metadata alone: 0.291 seconds
LP: #1709772
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Here we add and enable by default a datasource for Scaleway cloud.
The datasource quickly exits unless one of three things:
a.) 'Scaleway' found as the system vendor
b.) 'scaleway' found on the kernel command line.
c.) the directory /var/run/scaleway exists (this is currently created
by the scaleway initramfs module).
One interesting bit of this particular datasource is that it requires
the source port of the http request to be < 1024.
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On systems with network devices with duplicate mac addresses, cloud-init
will fail to rename the devices according to the specified network
configuration. Refactor net layer to search by device driver and device
id if available. Azure systems may have duplicate mac addresses by
design.
Update Azure datasource to run at init-local time and let Azure datasource
generate a fallback networking config to handle advanced networking
configurations.
Lastly, add a 'setup' method to the datasources that is called before
userdata/vendordata is processed but after networking is up. That is
used here on Azure to interact with the 'fabric'.
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AliYun cloud platform is now identifying themselves by setting the dmi
product id to the well known value "Alibaba Cloud ECS". The changes here
identify that properly in tools/ds-identify and in the DataSourceAliYun.
Since the 'get_data' for AliYun now identifies itself correctly, we can
enable AliYun by default.
LP: #1638931
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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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CloudSigma would not get any datasources loaded during cloud-init local.
Thus, when the network datasource was removed, *no* CloudSigma
datasources would be loaded.
LP: #1648380
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