class Pec2::Ec2

Public Class Methods

new(profile:) click to toggle source
# File lib/pec2/ec2.rb, line 15
def initialize(profile:)
  @logger = Logger.new(STDOUT)
  @ec2 = Aws::EC2::Client.new(get_param(profile))
end

Public Instance Methods

get_document() click to toggle source
# File lib/pec2/ec2.rb, line 31
def get_document
  JSON.parse(get_metadata('/latest/dynamic/instance-identity/document/'))
end
get_metadata(path) click to toggle source
# File lib/pec2/ec2.rb, line 35
def get_metadata(path)
  begin
    result = {}
    Timeout.timeout(TIME_OUT) {
      body = open('http://169.254.169.254' + path).read
      return body
    }
    return result
  rescue Timeout::Error => e
    raise "not EC2 instance"
  end
end
instances_hash(condition) click to toggle source
# File lib/pec2/ec2.rb, line 20
def instances_hash(condition)
  filter = []
  condition.each do |key, value|
    filter << { name: "tag:#{key}", values: ["#{value}"] }
  end
  filter << { name: 'instance-state-name', values: ['running'] }
  @ec2.describe_instances(
    filters: filter
  ).data.to_h[:reservations].map { |instance| Pec2Mash.new(instance[:instances].first) }
end

Private Instance Methods

get_param(profile) click to toggle source
# File lib/pec2/ec2.rb, line 50
def get_param(profile)
  param = {}
  if profile
    param[:profile] = profile
  else
    param[:region] = if ENV['AWS_REGION']
      ENV['AWS_REGION']
    else
      Metadata.get_document['region']
    end
  end
  param
end