Have multiple ec2 instances execute remote script

Question

I know I can make a AMI of an instance and launch multiple identical servers, but if I need to make changes to a script I need to edit them one by one or make another AMI. Is there any way to have my ec2 instances use a script from a master instance or any other solution to this issue.

There are lots of potential solutions to this. You can use a configuration management tool like Ansible, Puppet, Chef, etc. to ensure the script is always up-to-date on each host, you could have each host fetch the script from a central web server before executing it, etc. — Bruce P
– Bruce P, Commented Dec 21, 2015 at 20:21

E.J. Brennan · Accepted Answer · 2015-12-21 21:21:52Z

2

The recently announced EC2 run command may be what you need:

Run Command is a feature that enables you to securely manage the configuration of your Amazon EC2 instances. Run Command provides a simple way of automating common administrative tasks like executing Shell scripts and commands on Linux, running PowerShell commands on Windows, installing software or patches, and more. Run Command allows you to execute these commands across multiple instances and provides visibility into the results, making it easy to manage configuration change across fleets of instances.

https://aws.amazon.com/ec2/run-command/

https://aws.amazon.com/blogs/aws/new-ec2-run-command-remote-instance-management-at-scale/

answered Dec 21, 2015 at 21:21

E.J. Brennan

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