Initial commit

.gitignore

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+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+
+# rspec failure tracking
+.rspec_status

.rspec

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+--format documentation
+--color
+--require spec_helper

.travis.yml

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+sudo: false
+language: ruby
+rvm:
+  - 2.4.2
+before_install: gem install bundler -v 1.16.1

Gemfile

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+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# Specify your gem's dependencies in parameter_store_loader.gemspec
+gemspec name: "psenv"
+gemspec name: "psenv-rails"
+

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    psenv (0.0.1)
+      aws-sdk-ssm (~> 1)
+    psenv-rails (0.0.1)
+      psenv (= 0.0.1)
+      railties (>= 3.2, < 5.2)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionpack (5.1.5)
+      actionview (= 5.1.5)
+      activesupport (= 5.1.5)
+      rack (~> 2.0)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.1.5)
+      activesupport (= 5.1.5)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activesupport (5.1.5)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    aws-partitions (1.71.0)
+    aws-sdk-core (3.17.1)
+      aws-partitions (~> 1.0)
+      aws-sigv4 (~> 1.0)
+      jmespath (~> 1.0)
+    aws-sdk-ssm (1.8.0)
+      aws-sdk-core (~> 3)
+      aws-sigv4 (~> 1.0)
+    aws-sigv4 (1.0.2)
+    builder (3.2.3)
+    concurrent-ruby (1.0.5)
+    crass (1.0.3)
+    diff-lcs (1.3)
+    erubi (1.7.1)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jmespath (1.3.1)
+    loofah (2.2.2)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    method_source (0.9.0)
+    mini_portile2 (2.3.0)
+    minitest (5.11.3)
+    nokogiri (1.8.2)
+      mini_portile2 (~> 2.3.0)
+    rack (2.0.4)
+    rack-test (0.8.3)
+      rack (>= 1.0, < 3)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.0.4)
+      loofah (~> 2.2, >= 2.2.2)
+    railties (5.1.5)
+      actionpack (= 5.1.5)
+      activesupport (= 5.1.5)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (10.5.0)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+    rspec-core (3.7.1)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.1)
+    thor (0.20.0)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.16)
+  psenv!
+  psenv-rails!
+  rake (~> 10.0)
+  rspec (~> 3.0)
+
+BUNDLED WITH
+   1.16.1

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2018 Andrew Tomaka
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# Psenv
+
+**Work in progress**
+
+Shim to load environment variables from [AWS Systems Manager Parameter Store](https://aws.amazon.com/systems-manager/features/#Parameter_Store) into ENV.
+
+Psenv currently heavily borrows from [Dotenv](https://github.com/bkeepers/dotenv), mainly because I use it in roughly every project so it made since for the APIs to match.
+
+## Installation
+
+### Rails
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'psenv-rails'
+```
+
+And then execute:
+
+    $ bundle
+
+Set the `PARAMETER_STORE_PATH` environment variable with the AWS Parameter
+Store path that you wish to load.
+
+### Plain Ruby
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'psenv'
+```
+
+And then execute:
+
+    $ bundle
+
+Set the `PARAMETER_STORE_PATH` environment variable with the AWS Parameter
+Store path that you wish to load.
+
+Finally, trigger the loading:
+
+```ruby
+require 'psenv'
+Psenv.load
+```
+
+## Usage
+
+* Create a variable in parameter store using the AWS console or the CLI
+
+```
+aws ssm put-parameter \
+	--name /psenv/test/API_KEY \
+	--value "api_key_value" \
+	--type String
+```
+
+* Ensure your application has at least the following IAM permissions
+	* `ssm:GetParametersByPath` on resource `arn:aws:ssm:::parameter/psenv/test/*`
+* Set the `PARAMETER_STORE_PATH` environment variable to `/psenv/test/`
+
+This example will set the `API_KEY` to `api_key_value` and make it available to
+your application.
+
+## 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](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/atomaka/psenv.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

Rakefile

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+require "bundler/gem_helper"
+require "rspec/core/rake_task"
+
+namespace "psenv" do
+  Bundler::GemHelper.install_tasks name: "psenv"
+end
+
+namespace "psenv-rails" do
+  class ParameterStoreEnvRailsGemHelper < Bundler::GemHelper
+    def guard_already_tagged; end # noop
+
+    def tag_version; end # noop
+  end
+
+  ParameterStoreEnvRailsGemHelper.install_tasks name: "psenv-rails"
+end
+
+task build: ["psenv:build", "psenv-rails:build"]
+task install: ["psenv:install", "psenv-rails:install"]
+task release: ["psenv:release", "psenv-rails:release"]
+
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec

bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "parameter_store_loader"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start(__FILE__)

bin/setup

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+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here

lib/psenv-rails.rb

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+require "psenv"
+
+if defined?(Rake.application)
+  is_running_specs = Rake.application.top_level_tasks.grep(/^spec(:|$)/).any?
+  Rails.env = ENV["RAILS_ENV"] ||= "test" if is_running_specs
+end
+
+module Psenv
+	class Railtie < Rails::Railtie
+		def load
+			Psenv.load
+		end
+
+		def self.load
+			instance.load
+		end
+
+    config.before_configuration { load }
+	end
+end

lib/psenv.rb

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+require "psenv/version"
+
+require "aws-sdk-ssm"
+
+module Psenv
+  module_function
+
+  def load
+    if ENV["PARAMETER_STORE_PATH"] != nil
+      ssm = Aws::SSM::Client.new
+
+      ssm.
+        get_parameters_by_path(
+          path: ENV["PARAMETER_STORE_PATH"],
+          with_decryption: true,
+        ).
+        parameters.
+        each do |param|
+          ENV.store(param.name.split("/").last, param.value)
+        end
+    end
+  end
+end

lib/psenv/version.rb

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+module Psenv
+  VERSION = "0.0.1"
+end

psenv-rails.gemspec

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+
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "psenv/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "psenv-rails"
+  spec.version       = Psenv::VERSION
+  spec.authors       = ["Andrew Tomaka"]
+  spec.email         = ["atomaka@gmail.com"]
+
+  spec.summary       = %q{Load AWS SSM Parameter Store values into your Rails environment.}
+  spec.homepage      = "https://github.com/atomaka/psenv"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files lib | grep rails`.
+    split($OUTPUT_RECORD_SEPARATOR).
+    reject do |f|
+      f.match(%r{^(test|spec|features)/})
+    end + ["README.md", "LICENSE.txt"]
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_dependency "psenv", Psenv::VERSION
+  spec.add_dependency "railties", ">= 3.2", "< 5.2"
+end

psenv.gemspec

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+
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "psenv/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "psenv"
+  spec.version       = Psenv::VERSION
+  spec.authors       = ["Andrew Tomaka"]
+  spec.email         = ["atomaka@gmail.com"]
+
+  spec.summary       = %q{Load AWS SSM Parameter Store values into your environment.}
+  spec.homepage      = "https://github.com/atomaka/psenv"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
+    f.match(%r{^(test|spec|features)/})
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.16"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rspec", "~> 3.0"
+
+  spec.add_dependency "aws-sdk-ssm", "~> 1"
+end

spec/psenv_spec.rb

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+RSpec.describe Psenv do
+  it "has a version number" do
+    expect(Psenv::VERSION).not_to be nil
+  end
+
+  it "tests something useful"
+end

spec/spec_helper.rb

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+require "bundler/setup"
+require "psenv"
+
+RSpec.configure do |config|
+  # Enable flags like --only-failures and --next-failure
+  config.example_status_persistence_file_path = ".rspec_status"
+
+  # Disable RSpec exposing methods globally on `Module` and `main`
+  config.disable_monkey_patching!
+
+  config.expect_with :rspec do |c|
+    c.syntax = :expect
+  end
+end