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Accepted
Jeevan Dongre
Asked: 2012-05-09 05:50:38 +0800 CST

how to configure the aws ec2 to automatically pull code from github

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Hi I am running a large ec2 ubuntu instance which is configured for auto scaling. Whenever the load increases on the large instance it will boot a new instance. But the booted new instance will not have updated code. I have my code repo in github. How to I configure the newly booted instance to pull the code from the github and keep itself updated.

Please give some heads up

amazon-ec2 amazon-web-services

4 Answers

  1. Best Answer

    Ubuntu's EC2 images support cloud-init, which is intended for this sort of thing. It lets you run scripts, install packages, configure the system, etc. and is well supported by AWS.

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  2. If you want to execute some command after booting up your Linux instance, you can add the needed command to /etc/rc.local. This script gets executed at the end of boot process. So, you can pull the code from github automatically each time a new instance is booted.

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  3. This is indeed possible. You might want to look at the following thread which gives some really useful information on the topic:

    http://lists.opscode.com/sympa/arc/chef/2011-07/msg00110.html

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  4. I'd do something like this crontab w/ 

    @reboot git pull

    it will execute your "git pull" every time your instance boots.

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