unable to install using current cloud-init + site.pp files

[kenirwin]

I tried following Tim's AWS install example video:
https://www.youtube.com/watch?v=exi-4xwUwns&feature=youtu.be
using the cloud-init setup file in this repo.

The install got hung up partway through, apparently giving up without completing all the steps in the site.pp file. I ran egrep -i 'fail|error' on the cloud-init logs and found:

/var/log/cloud-init.log:2018-11-13 00:39:58,190 - handlers.py[DEBUG]: finish: modules-final/config-package-update-upgrade-install: FAIL: running config-package-update-upgrade-install with frequency once-per-instance
/var/log/cloud-init.log:2018-11-13 00:39:58,190 - handlers.py[DEBUG]: finish: modules-final: FAIL: running modules for final
/var/log/cloud-init.log:2018-11-13 00:40:34,487 - main.py[DEBUG]: Ran 15 modules with 0 failures
/var/log/cloud-init.log:2018-11-13 00:40:37,071 - main.py[DEBUG]: Ran 15 modules with 0 failures
/var/log/cloud-init.log:2018-11-13 00:40:37,669 - cc_rightscale_userdata.py[DEBUG]: Failed to get raw userdata in module rightscale_userdata
/var/log/cloud-init.log:2018-11-13 00:41:26,591 - util.py[WARNING]: Failed running /var/lib/cloud/instance/scripts/runcmd [1]
/var/log/cloud-init.log:2018-11-13 00:41:26,591 - util.py[DEBUG]: Failed running /var/lib/cloud/instance/scripts/runcmd [1]
/var/log/cloud-init.log:cloudinit.util.ProcessExecutionError: Unexpected error while running command.
/var/log/cloud-init.log:2018-11-13 00:41:26,593 - cc_scripts_user.py[WARNING]: Failed to run module scripts-user (scripts in /var/lib/cloud/instance/scripts)
/var/log/cloud-init.log:2018-11-13 00:41:26,594 - handlers.py[DEBUG]: finish: modules-final/config-scripts-user: FAIL: running config-scripts-user with frequency once-per-instance
/var/log/cloud-init.log:2018-11-13 00:41:26,594 - util.py[WARNING]: Running module scripts-user (<module 'cloudinit.config.cc_scripts_user' from '/usr/lib/python3/dist-packages/cloudinit/config/cc_scripts_user.py'>) failed
/var/log/cloud-init.log:2018-11-13 00:41:26,594 - util.py[DEBUG]: Running module scripts-user (<module 'cloudinit.config.cc_scripts_user' from '/usr/lib/python3/dist-packages/cloudinit/config/cc_scripts_user.py'>) failed
/var/log/cloud-init.log: return self.runners.run(name, functor, args, freq,clear_on_fail)
/var/log/cloud-init.log: % (len(failed), len(attempted)))
/var/log/cloud-init.log:RuntimeError: Runparts: 1 failures in 1 attempted commands
/var/log/cloud-init.log:2018-11-13 00:41:26,747 - main.py[DEBUG]: Ran 20 modules with 1 failures
/var/log/cloud-init.log:2018-11-13 00:41:26,748 - handlers.py[DEBUG]: finish: modules-final: FAIL: running modules for final
/var/log/cloud-init-output.log:Installation finished. No error reported.
/var/log/cloud-init-output.log:ERROR: ld.so: object 'libeatmydata.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
/var/log/cloud-init-output.log:ImportError: cannot import name main
/var/log/cloud-init-output.log:Error: Illegal variable name, The given name 'AIPs_in_s3' does not conform to the naming rule /^((::)?[a-z]\w*)*((::)?[a-z]\w*)$/ (file: /etc/puppet/manifests/site.pp, line: 299, column: 1)
/var/log/cloud-init-output.log:Error: Illegal variable name, The given name 'AIP_directory' does not conform to the naming rule /^((::)?[a-z]\w*)((::)?[a-z_]\w)$/ (file: /etc/puppet/manifests/site.pp, line: 300, column: 1)
/var/log/cloud-init-output.log:Error: Illegal variable name, The given name 'AIP_directory' does not conform to the naming rule /^((::)?[a-z]\w*)((::)?[a-z_]\w)$/ (file: /etc/puppet/manifests/site.pp, line: 303, column: 14)
/var/log/cloud-init-output.log:Error: Language validation logged 3 errors. Giving up
/var/log/cloud-init-output.log:2018-11-13 00:41:26,591 - util.py[WARNING]: Failed running /var/lib/cloud/instance/scripts/runcmd [1]
/var/log/cloud-init-output.log:2018-11-13 00:41:26,593 - cc_scripts_user.py[WARNING]: Failed to run module scripts-user (scripts in /var/lib/cloud/instance/scripts)
/var/log/cloud-init-output.log:2018-11-13 00:41:26,594 - util.py[WARNING]: Running module scripts-user (<module 'cloudinit.config.cc_scripts_user' from '/usr/lib/python3/dist-packages/cloudinit/config/cc_scripts_user.py'>) failed

Could it be that the current cloud-init and/or puppet files are incompatible with newer versions of some of their dependencies?

I tried to follow Tim's example as exactly as I could, with the limitation that I don't have a paid AWS account, so I'm testing out the install on a less robust server than he used.