* Allow additional services on the AMI's runlevels
I'm using this with my AMIs to add haveged to the boot runlevel to boost the amount of initial entropy on smaller instance types, so sshd can start in under 6s instead of over 2m.
add_svcs:
boot:
- haveged
* fix race condition with nvme-ebs /dev linking
* copy nvme stuff to build target in one operation
* add eu-north-1 region
* standardize on 'linux-virt' kernel
+ no longer need 'kernel_flavor' variable
+ always install 'aws-ena-driver' package
+ always enable ena_support
* switch to 'variables.yaml' for config
+ update build/convert script to stringify certain keys that may contain arrays
+ copy from 'variables.yaml-default' if it doesn't exist
* drop 'vpc' variable, using 'subnet' derives the proper VPC to use
* fix chrony.conf (all pool.ntp.org references are changed to 169.254.169.123)
* update README.md caveats