stop-start-ecs-service.py

import boto3

ecs = boto3.client('ecs')
ssm = boto3.client('ssm')
cluster_name = “sample-cluster”
service_name = “sample-service”

# To stop the tasks
response = ecs.describe_services(
    cluster=cluster_name,
    services=[service_name]
)

nr_tasks = response[‘services’][0][‘desiredCount’]
ssm.put_parameter(
    Name=’/ecs/{}/{}/desired_count’.format(
        cluster_name,
        service_name),
    Value=str(nr_tasks),
    Type='String',
    Overwrite=True,
)

response = ecs.update_service(
    cluster=cluster_name,
    service=service_name,
    desiredCount=0)

# To start the tasks again
response = ssm.get_parameter(
    Name=’/ecs/{}/{}/desired_count’.format(
        cluster_name,
        service_name)
)
nr_tasks = response[‘Parameter’][‘Value’]

response = client.update_service(
    cluster=cluster_name,
    service=service_name,
    desiredCount=nr_tasks)