No release in over a year
Dynamically select EC2 instances to interact with using Capistrano.
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 Project Readme

Capistrano-AWS-EC2

Your EC2 instances are behind a load balancer and change their addresses way too often? Fear no more! Capistrano-AWS-EC2 allows you to query your EC2 instances and add them to capistrano.

Installation

Add this line to your application's Gemfile:

group :development do
  gem 'capistrano-aws-ec2', require: false
end

And then execute:

$ bundle install

Or install it yourself as:

$ gem install capistrano-aws-ec2

Usage

Require the gem in Capfile

# Capfile
require 'capistrano/aws/ec2'

Add EC2 instances to your capistrano configuration:

# config/deploy/production.rb
ec2_instances.each do |instance|
  # this could be your custom filter logic:
  next unless instance.tags.any? { |tag| tag.key == 'foo' && tag.value == 'bar' }

  server instance.public_ip_address, user: 'deploy', roles: %w[web app db], primary: true
end

Configure AWS:

# config/deploy.rb or per stage
set :aws_region, 'eu-central-1' # falls back to ENV['AWS_REGION'] or ENV['AWS_DEFAULT_REGION']
set :aws_access_key_id, 'my-aws-key' # falls back to ENV["#{stage.upcase}_ACCESS_KEY_ID"] or ENV['AWS_ACCESS_KEY_ID']
set :aws_secret_access_key, 'my-aws-secret' # falls back to ENV["#{stage.upcase}_SECRET_ACCESS_KEY"] || ENV['AWS_SECRET_ACCESS_KEY']

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/zyndoras/capistrano-aws-ec2. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Capistrano::Aws::Ec2 project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.