Issue with notebook lifecycle configuration

[petsvakala]

Just to keep you informed of my issue. I was following steps along the book and wanted to provision AWS instrastructure using Cloudformation template. However during this process step related to notebook instance failed. For me the solution was to replace command in the lifecycle configuration. It used to be:
initctl restart jupyter-server --no-wait
but I used this one:
systemctl restart jupyter-server
Rerunning Cloudformation succeeded after this change.

I think reason is because now AWS notebook instances come with newer Amazon Linux 2 instead of older ones.