* 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
* Latest Amazon Linux enables 64bid when creating ext4 partitions, which is incompatible with syslinux/extlinux bootloader. Explicitly disable 64bit support, as it's highly unlikely we'll need a boot volume >16 TiB.
* update-extlinux.conf - switch kernel default to 'virt', as 'hardened' no longer exists.
* 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
* README.md
+ update list of modern instance types
+ add caveat regarding linux-vanilla vs. linux-virt
* alpine-ami.yaml
+ build instance type is always t3.nano
+ block device where we build is always /dev/xvdf
+ add optional AMI encryption
+ always enable AMI SR-IOV flag (vanilla & virt both have the necessary driver)
+ no need to pass volume_name to make_ami.sh
* make_ami.sh
+ replace hard tabs with 4 spaces
+ always set up edge repositories
+ no need to add mkinitfs package, it's a dependency of linux-*
+ fix update of /etc/inittab
+ fix configuration of NTP
+ declare local vars in main()
+ device is always /dev/xvdf
* variables.json-default/example
+ improve comment for kernel_flavor
+ default add_repos is now empty
+ remove acct & e2fsprogs-extra from add_pkgs
+ add optional AMI encryption
+ remove sriov_enable, build_instance_type, and volume_name vars
* move config variables from alpine-ami.yaml to variables.json-*
+ variables.json-default - ready-for-action original default config
+ variables.json-example - original defaults with comments
* clean up tabs vs. spaces in make_ami.sh
* make_ami.sh handles custom kernel flavor, extra repos, and extra packages
* tweak README with regards to aws-ena-driver caveat
* add public_ip variable, setting to 'true' allows packer to build from outside AWS
* use smallest instance_type (t2.nano) and volume_size (1 GiB)
* eu-west-3 region is live; ap-northeast-3 requires subscription
* no longer need setup_staging_repos function...
+ tiny-ec2-bootstrap is available in main since v3.8
+ aws-ena-driver-vanilla is only available in edge/testing
* switched to linux-vanilla since linux-hardened is no longer available and linux-virt does not have NVME available
+ TODO? make kernel choice selectable (significant memory/disk savings linux-virt can be used)
