amazon-web-services - 如何在 aws-cli 中对 `list-tasks` 的结果进行排序？

Question

我有几个任务正在运行我想获得最新的(最后开始的任务，最后创建时间)任务 arn。我正在使用这个命令

aws ecs list-tasks --cluster {cluster} --family {family} --desired-status 'STOPPED'

经过一些探索后，我了解了sort_by。我试过了

aws ecs list-tasks --cluster {cluster} --family {family} --desired-status 'STOPPED' --query "sort_by(taskArns, &CreatedAt)"

但是这给出了错误

In function sort_by(), invalid type for value: <some_task_arn>, expected one of: ['string', 'number'], received: "null"

Answer 1

list-tasks 不会为您提供该信息。必须同时使用 list-tasks 和 describe-tasks。

我将在我的集群上提供示例，任务状态为RUNNING。您将必须根据需要对其进行调整。

<强>1。获取任务列表

task_arns=$(aws ecs list-tasks --cluster ${cluster[Name]} \
               --desired-status 'RUNNING' \
               --query 'taskArns' --output text)

echo ${task_arns}

应该给出你的任务的 Arns 列表，例如:

arn:aws:ecs:us-east-1:275795381673:task/0053c603-a6c9-4044-89f5-b0edc8f6de3f arn:aws:ecs:us-east-1:275795381673:task/0b4626ea-0f2b-4c99-9e90-010e8a0c8ad3 arn:aws:ecs:us-east-1:275795381673:task/0d4aa5f2-f547-45ad-b1f8-ed84ef1d678c arn:aws:ecs:us-east-1:275795381673:task/190a320f-4b68-497a-921e-439460447d45 arn:aws:ecs:us-east-1:275795381673:task/c979f4a2-3665-4c56-93c6-e9b88f6b3519

<强>2。获取排序任务 Arns

aws ecs describe-tasks --cluster ${cluster[Name]} \
    --tasks  ${task_arns} \
    --query "tasks[] | reverse(sort_by(@, &createdAt)) | [].[createdAt,taskArn]" \
    --output table

应该给，例如:

----------------------------------------------------------------------------------------------------
|                                           DescribeTasks                                          |
+----------------+---------------------------------------------------------------------------------+
|  1589888493.15 |  arn:aws:ecs:us-east-1:275795381673:task/c979f4a2-3665-4c56-93c6-e9b88f6b3519   |
|  1589888501.348|  arn:aws:ecs:us-east-1:275795381673:task/190a320f-4b68-497a-921e-439460447d45   |
|  1589888499.438|  arn:aws:ecs:us-east-1:275795381673:task/0d4aa5f2-f547-45ad-b1f8-ed84ef1d678c   |
|  1589888500.312|  arn:aws:ecs:us-east-1:275795381673:task/0b4626ea-0f2b-4c99-9e90-010e8a0c8ad3   |
|  1589888497.701|  arn:aws:ecs:us-east-1:275795381673:task/0053c603-a6c9-4044-89f5-b0edc8f6de3f   |
+----------------+---------------------------------------------------------------------------------+

<强>3。获取最后一个元素排序的任务 Arns

aws ecs describe-tasks --cluster ${cluster[Name]} \
    --tasks  ${task_arns} \
    --query "tasks[] | reverse(sort_by(@, &createdAt)) | [-1].[taskArn]" \
    --output text

应该给:

arn:aws:ecs:us-east-1:275795381673:task/0053c603-a6c9-4044-89f5-b0edc8f6de3f