AutoScaling 一部抜粋（変数要脳内補完）

as.rb

launch_configuration = auto_scaling.launch_configurations.create(
  name,
  ami.id,
  as_instance_type,
  key_pair:        as_key_pair,
  security_groups: as_security_groups,
)
      
auto_scaling_group = auto_scaling.groups.create(
  name,
  load_balancers:            as_load_balancers,
  min_size:                  as_min_size,
  max_size:                  as_max_size,
  launch_configuration:      launch_configuration,
  availability_zones:        as_availability_zones,
  health_check_type:         as_load_balancers.empty? ? :ec2 : :elb,
  health_check_grace_period: 240,
)

scale_up_policy = auto_scaling_group.scaling_policies.create(
  name,
  adjustment_type:    'ChangeInCapacity',
  scaling_adjustment: as_min_size,
  cooldown:           180,
)

alarm_high_cpu = cloud_watch.alarms.create(
  name,
  namespace:           'AWS/EC2',
  metric_name:         'CPUUtilization',
  dimensions:          [{:name => 'AutoScalingGroupName', :value => auto_scaling_group.name}],
  comparison_operator: 'GreaterThanThreshold',
  evaluation_periods:  1,
  period:              60,
  statistic:           'Average',
  threshold:           as_alarm_high_cpu_threshold,
  alarm_actions:       [scale_up_policy.arn],
  unit:                'Percent',
)