AMI Builder for AWS Platform
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AMZN-base is an implementation of the architecture defined in the Application Platform on AWS article. AMZN-base assumes the AMI is controlled with amzn-ship.


Using Packer to Create the AMI

The AMI is responsible for installing a framework with its dependencies and some helper programs for deployment. See the bin directory for the list of programs copied into the AMI.

$ build-ami frameworks/node ami-7cb04b14
us-east-1: ami-1d3e7074
$ export AMZN_AMI=ami-1d3e7074

Building the AMI

The build process is simple. We take the filesystem in ./target-machine and copy it onto the root filesystem of the host. Once the filesystem is in place, the setup script will use apt-get to install a base set of software (e.g. build-essential).

The build-ami command takes two arguments. The first is the location of a bash file that describes the framework. This file contains a set of commands that will setup the AMI for the application it is to run. For example, the framework/node file will setup the AMI for a nodejs app.

The second argument specifies which AMI to use as the basis for the image. Canonical publishes a list of "Ubuntu Cloud Image" AMIs at