aws cli 명령 출력 제어 - Autoscaling 조회 using dictionary notation, 필터링...

 

 

aws 명령의 default output format은 json임.

 

aws명령으로 이용하려는 서비스별 조회/생성/조회/업데이트/삭제 등의 동작을 할 수 있는데,

이중 'describe'명령 결과를 내 기호에 맞는 데이터와 형식으로 출력시켜보자.

 

 

o 기본 출력 예 (json)

$ aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names 이름-***
{
    "AutoScalingGroups": [
        {
            "AutoScalingGroupName": "이름-***...",
            "AutoScalingGroupARN": "arn:aws::........",
            ...
            "MinSize": 2,
            "MaxSize": 6,
            "DesiredCapacity": 2,
            "DefaultCooldown": 300,
            "AvailabilityZones": [
                "ap-northeast-2a",
                "ap-northeast-2c"
            ],
            "Instances": [
                {
                    "InstanceId": "i-111111",
                    "InstanceType": "g4dn.xlarge",
                     "AvailabilityZone": "ap-northeast-2c",
                     "LifecycleState": "InService",
                     "HealthStatus": "Healthy",
                     "LaunchTemplate": {
                         ...
                     },
                     "ProtectedFromScaleIn": true
                    ...
                },
                {
                    "InstanceId": "i-222222",
                    "InstanceType": "g4dn.xlarge",
                     "AvailabilityZone": "ap-northeast-2c",
                     "LifecycleState": "InService",
                     "HealthStatus": "Healthy",
                     "LaunchTemplate": {
                         ...
                     },
                     "ProtectedFromScaleIn": true
                    ...
                },

                ...
            ],
            ...
            "CreatedTime": "2020-11-04T05:59:25.738Z",
            ...

 

o 기본 출력에서 'jq'로 원하는 데이터만 출력

$ aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names 이름-*** \
  jq '.AutoScalingGroups[0].Instances'
[
  {
    "InstanceId": "i-111111",
    "InstanceType": "g4dn.xlarge",
    "AvailabilityZone": "ap-northeast-2c",
    "LifecycleState": "InService",
    "HealthStatus": "Healthy",
    "LaunchTemplate": {
      ...
    },
    "ProtectedFromScaleIn": true
  },
  {
    "InstanceId": "i-222222",
    "InstanceType": "g4dn.xlarge",
    "AvailabilityZone": "ap-northeast-2c",
    "LifecycleState": "InService",
    "HealthStatus": "Healthy",
    "LaunchTemplate": {
      ...
    },
    "ProtectedFromScaleIn": true
  }
]

 

 

o table 출력으로 변경

$ aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names 이름-*** --output table
------------------------------------------------------------
|                DescribeAutoScalingGroups                 |
+----------------------------------------------------------+
||                  AutoScalingGroup     s                ||
|+---------------------------+----------------------------+|
||  AutoScalingGroupARN      |  arn:aws::........         ||
||  AutoScalingGroupName     |  이름-***...               ||
||  CreatedTime              |  YYYY-mm-ddTHH:MM:SS.sssZ  ||
||  DefaultCooldown          |  300                       ||
||  DesiredCapacity          |  2                         ||
||  MaxSize                  |  6                         ||
||  MinSize                  |  2                         ||
...
|+---------------------------+----------------------------+|
|||                  AvailabilityZones                   |||
||+------------------------------------------------------+||
|||  ap-northeast-2a                                     |||
|||  ap-northeast-2c                                     |||
||+------------------------------------------------------+||
|||                      Instances                       |||
||+--------------------------+---------------------------+||
|||  AvailabilityZone        |  ap-northeast-2c          |||
|||  HealthStatus            |  Healthy                  |||
|||  InstanceId              |  i-111111                 |||
|||  InstanceType            |  g4dn.xlarge              |||
|||  LifecycleState          |  InService                |||
|||  ProtectedFromScaleIn    |  True                     |||
||+--------------------------+---------------------------+||
||||                   LaunchTemplate                   ||||
....
|||+----------------------------------------------------+|||
|||                      Instances                       |||
||+--------------------------+---------------------------+||
|||  AvailabilityZone        |  ap-northeast-2c          |||
|||  HealthStatus            |  Healthy                  |||
|||  InstanceId              |  i-222222                 |||
|||  InstanceType            |  g4dn.xlarge              |||
|||  LifecycleState          |  InService                |||
|||  ProtectedFromScaleIn    |  True                     |||
||+--------------------------+---------------------------+||
...

 

o table출력에서 원하는 데이터와 컬럼으로 필터링 / 재정의(?) (dictionary notation 활용)

$ aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names 이름-*** \
--output table \
--query 'AutoScalingGroups[*].Instances[*].{ID:InstanceId, STATUS:HealthStatus, PROTECTED:ProtectedFromScaleIn}';
----------------------------------------
|      DescribeAutoScalingGroups       |
+-------------+-------------+----------+
|     ID      |  PROTECTED  | STATUS   |
+-------------+-------------+----------+
|  i-111111   |  True       |  Healthy |
|  i-222222   |  True       |  Healthy |
+-------------+-------------+----------+

 

 

[참고]

    docs.aws.amazon.com/cli/latest/userguide/cli-usage-output.html

    docs.aws.amazon.com/cli/latest/userguide/cli-usage-output.html#cli-usage-output-filter