如何在 Python AWS boto API 中获取给定 EC2 实例 ID 的容器实例列表

How do I get the list of container instances given an EC2 instance ID in the Python AWS boto API

我一直在 Python 的 boto3 客户端 (http://boto3.readthedocs.io/en/latest/reference/services/ec2.html) 中搜索 EC2 api。给定一个 EC2 实例 ID,我希望能够找到该 EC2 实例上 运行 属于特定 ECS 集群 ID 的所有容器实例。我似乎找不到执行此操作的任何 API 调用。我怎样才能得到这些信息?

我需要此信息,因为给定一个 EC2 实例 ID,我想知道所有容器以及这些容器上的所有任务 运行。

我认为您可以使用 ECS API 来做到这一点。例如

import boto3

CLUSTER = 'YOUR_CLUSTER_ID'
EC2 = 'YOUR_EC2_ID'

ecs = boto3.client('ecs')

ci_list_response = ecs.list_container_instances(
    cluster=CLUSTER
)

# Describe those ARNs
ci_descriptions_response = ecs.describe_container_instances(
    cluster=CLUSTER,
    containerInstances=ci_list_response['containerInstanceArns']
)

# Look for a container instance with the given EC2 instance ID
# Then for want of something better to do, print all the details
for ci in ci_descriptions_response['containerInstances']:
    if ci['ec2InstanceId'] == EC2:
        print(ci)

编辑:我突然想到您可能对那个实例上的 运行 任务更感兴趣,您也可以获得这些任务。

import boto3

CLUSTER = 'YOUR_CLUSTER_ID'
EC2 = 'YOUR_EC2_ID'

ecs = boto3.client('ecs')

ci_list_response = ecs.list_container_instances(
    cluster=CLUSTER
)

# Describe those ARNs
ci_descriptions_response = ecs.describe_container_instances(
    cluster=CLUSTER,
    containerInstances=ci_list_response['containerInstanceArns']
)

# Look for a container instance with the given EC2 instance ID
# Then for want of something better to do, print all the details
for ci in ci_descriptions_response['containerInstances']:
    if ci['ec2InstanceId'] == EC2:

        # List tasks on this container instance
        t_list_response = ecs.list_tasks(
            cluster=CLUSTER,
            containerInstance=ci['containerInstanceArn']
        )

        # Describe tasks
        t_descriptions_response = ecs.describe_tasks(
            cluster=CLUSTER,
            tasks=t_list_response['taskArns']
        )

        print(t_descriptions_response)