Amazon Web Service’s Elastic Compute Cloud (EC2) provides a platform for deploying and running applications.
On EC2, cloud images are referred to as Amazon Machine Images (AMIs). Canonical produces a wide variety of images to support numerous features found on EC2:
- Generally, all images utilize EBS storage and HVM virtualization types. Older releases may also support PV and instance-store, but users benefit from the newer storage and virtualization technologies.
- Standard server images as well as minimal images for
amd64. As well,
arm64images for the standard server set.
- Daily (untested) and release images are published.
Find Images with SSM
The AWS Systems Manager (SSM) parameter store is used by Canonical to store the latest AMI release versions for EC2. This provides users with a programmatic method of querying for the latest AMI ID.
Canonical stores SSM parameters under
/aws/service/canonical/. To find the latest AMI ID user’s can use the AWS CLI:
aws ssm get-parameters --names \ /aws/service/canonical/ubuntu/server/20.04/stable/current/amd64/hvm/ebs-gp2/ami-id
The path follows the following format:
The given serial for an image (e.g. 20210222) is also uploaded in place of current:
For more details on SSM check out the following Discourse thread.
User’s can verify that an AMI was published by Canonical by ensuring the
OwnerId field of an image is
099720109477. This ID is stored in SSM and is discoverable by running:
aws ssm get-parameters --names /aws/service/canonical/meta/publisher-id
With the value returned by that command, user’s can then run the
describe-images command against an AMI ID and verify the
OwnerId field matches the above ID:
aws ec2 describe-images --image-ids $AMI_ID
Note that listings on the AWS Marketplace will always show the
OwnerId as Amazon (e.g.
679593333241). In these cases, users can verify the Amazon ID and look for
aws-marketplace/ubuntu in the
Canonical also produces a Ubuntu Cloud Image Finder where users can filter down based on a variety of criteria (e.g. region, release, etc. ).
EKS is a managed Kubernetes service provided by AWS that lets users run Kubernetes applications in the cloud or on-premises.
Canonical provides minimized Ubuntu images customized for use with EKS. These are fully tested release images that cover all Kubernetes versions supported by the EKS service.
AWS Marketplace is a digital catalog with thousands of software listings from independent software vendors that make it easy to find, test, buy, and deploy software that runs on AWS.
Canonical maintains image listings for recent Ubuntu releases on AWS Marketplace, including images in minimal and arm64 flavors.