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Last Updated: February 25, 2016
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· timclipsham

Change AWS Elastic Beanstalk Passenger Spawn Mode

After a tonne of googling I wasn't able to find an easy way to change Passenger's spawn mode setting in the default Ruby 1.9.3 Elastic Beanstalk (EB) image.

So I wrote this: https://gist.github.com/timclipsham/5917769

Since EB is using the standalone version of passenger, the script simply manipulates the /etc/init.d/passenger file (which starts/stops the passenger process) and appends --spawn-mode conservative to the start command.

Read more about how to customise your AWS EC2 instance created by EB if you're curious.