example-as.rb

require 'aws-sdk'

AWS.config(:credential_provider => AWS::Core::CredentialProviders::SharedCredentialFileProvider.new)

aws = AWS.regions['eu-west-1']

lc = aws.auto_scaling.launch_configurations

launch_config = lc.create('staging-loadbalancer', 'ami-XXXXX', 'm1.small', {
  detailed_instance_monitoring: true,
  key_pair: 'wadus',
  security_groups: ['example'],
  user_data: File.read('./combined-cloudinit.yml'),
  iam_instance_profile: 'loadbalancer'})

groups = aws.auto_scaling.groups

group = groups.create('staging-loadbalancer',
                      launch_configuration: launch_config,
                      availability_zones: %w(eu-west-1b),
                      min_size: 1,
                      max_size: 1,
                      desired_capacity: 1,
                      health_check_grace_period: 300,
                      health_check_type: :ec2,
                      tags: [{ key: 'Environment', value: 'staging', propagate_at_launch: true },
                             { key: 'Roles', value: 'loadbalancer', propagate_at_launch: true }]
                     )

# group.notification_configurations.create(topic: 'arn:aws:sns:eu-west-1:051915741463:AWS-notifications')