I've checked all of the following jammy daily images, and all of them fail to correctly install the EC2 metadata supplied SSH key such that it is possible to ssh ubuntu@host after startup.
Amazon AWS us-east-1 jammy com.ubuntu.cloud.daily:server:22.04 arm64 hvm-ssd 20220323 ami-0320e0e27a2e26467 Amazon AWS us-east-1 jammy com.ubuntu.cloud.daily:server:22.04 arm64 hvm-ssd 20220405 ami-028c98d9274336455 Amazon AWS us-east-1 jammy com.ubuntu.cloud.daily:server:22.04 arm64 hvm-ssd 20220406 ami-0cb3473d91f8f239d Amazon AWS us-east-1 jammy com.ubuntu.cloud.daily:server:22.04 arm64 hvm-ssd 20220407 ami-03c980393156217bb Both of these do install the SSH key for ubuntu@ from AWS metadata fine: Amazon AWS us-east-1 impish 21.10 arm64 hvm-ssd 20220309 ami-0a4b1fdc2301bf1f1 Amazon AWS us-east-1 impish com.ubuntu.cloud.daily:server:21.10 arm64 hvm-ssd 20220319 ami-09ce10196abcc5dc4 ** Also affects: openssh (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1968360 Title: jammy daily won't accept EC2 publickey (suspect cloud-init failure) To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1968360/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs