Capistrano::Aws

Installation

Add this line to your application's Gemfile:

gem 'capistrano3-aws'

And then execute:

$ bundle

Or install it yourself as:

$ gem install capistrano3-aws

Usage

in Capfile:

require 'capistrano3-aws'

in config/deploy.rb:

set :aws_profile, 'myapp'
set :aws_regions, %w(ap-northeast-1 us-east-1)

set :ec2_filters, -> {
  [ { name: 'tag:Name', ["*#{fetch(:application)}-#{fetch(:ec2_stage)}"] },
    { name: 'tag:Stage', [fetch(:ec2_stage)] },
    { name: 'tag:Role', %w(app db web) },
    { name: 'instance-state-name', values: %w(running) }
  ]
}

task :set_instances do
  hosts = instances.map(&:public_dns_name)
  role :web, hosts
  role :app, hosts
  role :db, hosts.first
end

## Blue-Green Deploy
#  deregister half of instances from ELB, then apply block, and register.
task :restart do
  bluegreen(:web, 'elb-arn') do
    execute :sudo, "restart rails"
    loop do
      begin
        execute :curl, "-s http://localhost:3000/"
        break
      rescue
      end
    end
  end
end

after :staging, :set_instances

in config/deploy/staging:

set :ec2_stage, 'dev'

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 tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/masarakki/capistrano3-aws.

License

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