Packer and Terraform Pattern Example
This repository houses a simple application that demonstrates an end-to-end infrastructure as code pattern using Packer and Terraform.
This repository serves as the technical example for the following article: https://vancluevertech.com/2016/02/02/aws-world-detour-packer-and-terraform/
- A small ruby gem (
vancluever_hello). This is built using rubygems tasks using
- A Chef recipe designed for deploying the application (
packer_payload). This is a single-purpose cookbook that is not intended to be shared in Supermarket, etc. It's only intended for use with Packer. With that said, having a cookbook allows you to port this functionality to a general-use cookbook if necessary - this can then be included from a fresh
- A packer template located at
- Terraform infrastructure in the
terraformdirectory, comprised of a single template for now,
You manage all of this with
Rakefile has tasks for managing the full lifecycle from building of the
gem, to AMI, to deployment. The list is below:
rake ami # Create an application AMI with Packer rake berks_cookbooks # Vendors dependent cookbooks in berks-cookbooks (for Packer) rake build # Build vancluever_hello-0.1.0.gem into the pkg directory rake clean # Remove any temporary products rake clobber # Remove any generated files rake infrastructure # Deploy infrastructure using Terraform
In addition to that, the file also has helper functions for looking up AMI IDs to be used in the build process.
Using this Repository
To prepare the repository for use, clone it and run
bundle install --binstubs --path vendor/bundle
You should then be good to start using
bundle exec rake. Get a list of
commands by running
bundle exec rake -T.
Finally, valid AWS credentials will need to be available in your credential
chain, either as environment variables (ie:
AWS_SESSION_TOKEN), or your credentials in your
You can also control the build process through the following environment variables:
DISTROTo control the Ubuntu distribution to use (default
REGIONTo control the region to deploy to (default
TF_CMDTo control the Terrafrom command (default
Author and License
Copyright 2016 Chris Marchesi Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.