How can I get this user data once inside the running droplet? Is this an environment variable? Do I need to run any command? Can I read its contents from inside the crontab config?
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The Enable User Data setting allows you to pass arbitrary data into the user-data key of the DigitalOcean Metadata service. It is available in regions that are running v1.5 of our backend.
You may run this command on a droplet, to retrieve the user-data that you supplied at its creation time:
curl -w "\n" http://169.254.169.254/metadata/v1/user-data
Currently, the Enable User Data setting is only required for the clustering of CoreOS droplets. For more information about using the setting with CoreOS, read this tutorial: How To Set Up a CoreOS Cluster on DigitalOcean
I want Chinese version