Hack on Fedora CoreOS on AWS EC2

Build image with COSA

chmod +x ./cosa && ./cosa
cosa init https://github.com/coreos/fedora-coreos-config.git
cosa fetch
cosa build
cosa buildextend-aws --upload

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Upload vmdk file to s3

upload built latest fedora coreos image to S3
create a s3 bucket name “images” manually
aws s3 cp rhcos.raw s3://images

Import Snapshot

aws ec2 import-snapshot --description "My dev fcos" --disk-container="file://{fcosdir}/buildfcos/fcos.json"

Check Status

aws ec2 describe-import-snapshot-tasks --import-task-ids import-snap-1234567890abcdef0

Create Image

Create Snapshot
Ref:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/creating-an-ami-ebs.html#creating-launching-ami-from-snapshot

Register Image

AMIs: Register new AMI
(commands tbc)
aws ec2 register-image –image-location fcos20200610/fedora-coreos-32.20200611.dev.0-aws.x86_64.vmdk –name “MyFCOS”

launch ec2 instance

Chose the created image to build ec2 instance.