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Informations about the package aws-ec2-check-tag
aws-ec2-check-tag
A very simple library that checks that, for the EC2 instance that this is run on, does a key === a certain value.
Introduction
This was built to scratch a particular itch where I only wanted cron commands and other services to run on one of a set of EC2 instances. This way you can deploy one AMI for a set of load balanced machines and simply tag one of them that you want to execute something on. For example, say we have 3 instances running the code base, but we only want a particular bit of code to run on one of them. Simply set a tag for that instance such as
And then all you need to do so check that RunHere has been set to True
Usage
Using the above example, you could use the following code:
