gce-graceful-shutdown

README

Google Compute Engine Graceful Shutdown

This tool monitors an Instance Group for changes. The moment the given Instance Template is no longer part of the monitored Instance Group, on-shutdown is run. Afterwards the Instance is deleted via an API call.

It does not currently trigger if:

• Instance is deleted
• Instance is restarted
• Instance is re-created during autohealing

Motivation

Google Shutdown Scripts are unreliable and only run for 60-90s max.

Usage

./gce-graceful-shutdown -on-shutdown 'docker stop --time 30 my-container' -timeout 30s 

Variable	Description
-creds	Path to Google Service Account Credentials. Defaults to Application Credentials.
-on-shutdown	Required Command to run when instance is about to be deleted.
-timeout	Time to wait for -on-shutdown to finish. Default 10m.
-project	Manually set Google Project.
-region	Manually set Region.
-zone	Manually set Zone.
-instance-group	Manually set Instance Group.
-instance-template	Manually set Instance Template.
-instance	Manually set Instance.