This document describes the policy for updating the ec2-hibinit-agent package to new upstream versions in a stable, supported distro (including LTS releases). This is an exception to the standard SRU process.
ec2-hibinit-agent is provided by Amazon for installation within guests that run on Amazon Web Services Elastic Compute Cloud (EC2). The package consists of scripts to act on an ACPI hibernation event specific to the EC2 environment to enable VM hibernation to disk.
Cloud platforms evolve at a rate that can't be handled in six-month increments, and they will often develop features that they would like to be available to customers who don't want to upgrade from earlier Ubuntu releases. As such, updating ec2-hibinit-agent releases is required within all Ubuntu releases, so they continue to function properly in their environment.
New versions of ec2-hibinit-agent can be SRU'd in to older releases provided the following process is followed.
When a new version of ec2-hibinit-agent is uploaded to -proposed, the following will be done:
- an image based on -proposed will be built for EC2 and published as a test image
- the CPC team will write new automated tests to cover new testable functionality (if any) in the new package
- the automated testing that the CPC team normally runs against EC2 images before they are published will be run against the -proposed image, testing of the image must include:
VM stop/terminate testing via API or EC2 console to avoid regression of LP: #1840909; the instance must be responsive to the ACPI powerbutton event and shut down as a result, and
- instance types that include both the XEN and KVM hypervisors for all tests to cover the different underlying platform implementations.
If all the testing indicates that the image containing the new package is acceptable, verification will be considered to be done and the the package can be released from -proposed.
Requesting the SRU
The SRU should be done with a single process bug for this stable release exception, instead of individual bug reports for individual bug fixes. However, individual bugs may be referenced in the from the changelog but each of those bugs will need to independently verified and commented on for the SRU to be considered complete.
== Begin SRU Template == [Impact] This release contains both bug-fixes and new features and we would like to make sure all of our supported customers have access to these improvements. The notable ones are: * <TODO: list any LP: # included> See the changelog entry below for a full list of changes and bugs. [Test Case] The following development and SRU process was followed: https://wiki.ubuntu.com/ec2-hibinit-agent-Updates The Canonical Public Cloud team will execute their testsuite, which includes ACPI shutdown and hibernation testing under load, against the agent that is in -proposed. A successful run will be required before the proposed ec2-hibinit-agent can be let into -updates. The CPC team will be in charge of attaching a summary of testing to the bug. CPC team members will not mark ‘verification-done’ until this has happened. == End SRU Template == <TODO: Paste in change log entry>