Question

如何通过SDK获取ElasticBeanstalk环境列表及其AutoScaling组信息？

我想为用户做一个API，将实例缩小到0，以便在办公时间之后节省成本。

我可以使用DescribeEnvironments然后为每个环境调用DescribeEnvironmentResources，但我认为这不太理想？我正在O(n)拨打DescribeEnvironmentResources这可能会慢一些？

Answer 1

您可能希望描述ElasticBeanstalk环境，并从响应中获取自动缩放组的名称。然后查询自动缩放组的信息。您可能希望从此处更改Autoscaling组的所需容量。您应该能够将其添加到用户的API中。

使用ruby sdk：获取有关ElasticBeanStalk的信息： http://docs.aws.amazon.com/sdkforruby/api/Aws/ElasticBeanstalk/Client.html#describe_environment_resources-instance_method

获取有关AutoScaling组的信息： http://docs.aws.amazon.com/sdkforruby/api/Aws/AutoScaling/Client.html#describe_auto_scaling_groups-instance_method

设置AutoScaling组的所需容量： http://docs.aws.amazon.com/sdkforruby/api/Aws/AutoScaling/Client.html#set_desired_capacity-instance_method

代码应该类似于：

elasticbeanstalk = Aws::ElasticBeanstalk::Client.new(
    region: region_name,
    credentials: credentials,
)

# assuming you know the environment names    
resp = elasticbeanstalk.describe_environment_resources({
  environment_name: "my-env", 
})

auto_scaling_groups_array = resp.to_hash['environment_resources']['auto_scaling_groups']
# auto_scaling_groups_array[0].name should give the name of the first autoscaling group


autoscaling = Aws::AutoScaling::Client.new(
  region: region_name,
  credentials: credentials,
  # ...
)

# get the resources of an AutoScaling Group, you probably want to do this for each group
resp = autoscaling.describe_auto_scaling_groups({
  auto_scaling_group_names: [
   "my-auto-scaling-group", # or auto_scaling_groups_array[0].name
  ]
})

# set the desired capacity, you probably want to do this for each group
resp = autoscaling.set_desired_capacity({
  auto_scaling_group_name: "my-auto-scaling-group", # or auto_scaling_groups_array[0].name
  desired_capacity: 2, 
  honor_cooldown: true, 
})

您可能希望为每个地区执行此操作。我没有测试过这个。我希望有所帮助。

获取ElasticBeanstalk环境的自动缩放组

1 个答案: