ECS ServicesStable 的 boto3 服务员

Question

I am using boto3 to deploy my ECS services. I have added the boto3 waiter for ECS as:

ecs_client = boto3.client('ecs', config=my_config)
waiter = ecs_client.get_waiter('services_stable')
waiter.wait(
    cluster="myCluster",
    services=["myService"],
    WaiterConfig={
        'Delay': 15,
        'MaxAttempts': 60
    }
)
print("Service is in steady state.")

The above ECS waiter works perfectly , but my ECS service takes about 5 minutes to be in running state and while executing the boto3 script, we had to wait 5 minutes with blank terminal .

Is it possible to print some message in terminal at fixed interval until the waiter is complete?

Any suggestions are appreciated.

Thanks.

Answer 1

A quick review of thewaiter code shows no functionality for logging status as you wait to complete. You'll need to create your own code for this functionality.

Answer 2

You can run a separate thread that prints messages like below:

import time
import threading
import boto3

ecs_client = boto3.client('ecs', config=my_config)
waiter = ecs.get_waiter('services_stable')

def waiter_caller(cluster_name, service_name):
    try:
        waiter.wait(
            cluster=cluster_name,
            services=[
                service_name,
            ],
            WaiterConfig={
                'Delay': 15,
                'MaxAttempts': 60
            }
        )
    except Exception as e:
        print('Deploy failed', e)

t = threading.Thread(target=waiter_caller, args=("myCluster", "myService"))
t.start()
while t.is_alive():
    print("Waiting for service deployment...")
    time.sleep(15)