ecs_task_runner

Helper tools to run a task on AWS ECS and follow the logs

Why?

The use case why I created this script is that we want to run ECS tasks in Jenkins and directly see the output of the tasks that are being run. This is very cumbersome to achieve using the aws cli. Hence this library.

Installation

Until this package is distributed as pip package, you have to install it directly from this repository:

pip install git+https://github.com/moee/ecs_task_runner@0.0.1

Usage

Example 1: Jenkins Integration

#!/bin/sh
pip install git+https://github.com/moee/ecs_task_runner@0.0.1

python << END
import ecstaskrunner, sys, logging

logging.basicConfig()
logging.getLogger('ecstaskrunner').setLevel(logging.INFO)

sys.exit(
    ecstaskrunner.run_task(
        cluster="YOUR-CLUSTER-NAME",
        taskDefinition='YOUR-TASK-DEFINITION',
    )
)
END

This runs the task named YOUR-TASK-DEFINITION on the cluster YOUR-CLUSTER-NAME, displays all the output (Note: this only works if the container definition uses the awslogs driver) and waits for the task to stop. Only if all containers have stopped and exited with 0 the job will be marked as success.

Example 2: Get the log output of a task

import ecstaskrunner
task = ecstaskrunner.task.Task(cluster='YOUR-CLUSTER-NAME', taskId='YOUR-TASK-ID')
for container in task.containers:
    for line in task.containers[container].get_log_events():
        print "%s: %s" % (container, line)