Vladimir Sudilovsky vsudilov

vsudilov / chef-shell on opswork instance

Last active June 18, 2018 07:50

	sudo -i
	/opt/aws/opsworks/current/bin/chef-zero &
	cd /var/chef/runs/*/
	opsworks-agent-cli get_json > attributes.json
	/opt/aws/opsworks/current/bin/chef-shell -c client.rb -j attributes.json -z -S http://localhost:8889

vsudilov / docker stats *

Created November 6, 2015 13:32

docker stats $(docker ps|grep -v "NAMES"|awk '{ print $NF }'|tr "\n" " ")

vsudilov / fetch_latest_gh_commit.py

Last active August 29, 2015 14:25

Fetch latest commit from target repo on github, check if that image is on dockerhub

	import requests
	import argparse

	API_ENDPOINT = "https://api.github.com/repos/adsabs/{repo}/branches/master"
	DOCKERHUB = "https://registry.hub.docker.com/v1/repositories/adsabs/{repo}/tags"
	parser = argparse.ArgumentParser()
	parser.add_argument(
	"--repos",
	nargs='*',
	dest='repos',

vsudilov / gist:6f2b1a6d2086b14ad941

Created June 22, 2015 17:35

change directory context manager

	class ChangeDir:
	"""Context manager for changing the current working directory"""
	def __init__(self, newPath):
	self.newPath = os.path.expanduser(newPath)

	def __enter__(self):
	self.savedPath = os.getcwd()
	os.chdir(self.newPath)

	def __exit__(self, etype, value, traceback):

vsudilov / gist:cc25a6eee101a375bfed

Created June 5, 2015 18:15

in-memory tarfile with in-memory contents

	tar_fileobj = io.BytesIO()
	with tarfile.open(fileobj=tar_fileobj, mode="w\|") as tar:
	my_content = "abdef".encode('utf-8')
	tf = tarfile.TarInfo("my_file_name")
	tf.size = len(my_content)
	tar.addfile(tf, io.BytesIO(my_content))
	tar_fileobj.seek(0)

vsudilov / gist:ff5598d07de1fe9d412f

Created May 18, 2015 18:59

python-retry decorator

	def with_retry_connections(max_tries=3, sleep=0.05):
	"""
	Decorator that wraps an entire function in a try/except clause. On
	requests.exceptions.ConnectionError, will re-run the function code
	until success or max_tries is reached.

	:param max_tries: maximum number of attempts before giving up
	:param sleep: time to sleep between tries, or None
	"""
	def decorator(f):

vsudilov / gist:b970efbcf4837f998933

Created April 1, 2015 18:57

curl+sed to check+parse public ip addr

curl -s checkip.dyndns.org | sed -e 's/.*Current IP Address: //' -e 's/<.*$//'

vsudilov / gunicorn.conf.py

Created November 13, 2014 14:30

gunicorn.conf.py

	import multiprocessing,os

	APP_NAME = 'foobar'

	bind = "0.0.0.0:5000"
	#bind = "unix:/tmp/gunicorn-%s.sock" % APP_NAME
	workers = multiprocessing.cpu_count() * 2 + 1
	max_requests = 200
	preload_app = True
	chdir = os.path.dirname(__file__)

vsudilov / gist:eda0a23338a69bb728cd

Created October 10, 2014 13:52

pika/rabbitMQ basic worker pattern

	import pika
	class GenericWorker:
	def __init__(self,url='amqp://admin:password@localhost:5672/%2F'):
	self.connection = pika.BlockingConnection(pika.URLParameters(url))
	self.channel = self.connection.channel()
	self.channel.exchange_declare(exchange='TestExchange',exchange_type='direct',passive=False,durable=False)
	self.channel.queue_declare(queue='TestQueue')
	self.channel.queue_bind(queue='TestQueue',exchange='TestExchange',routing_key='TestQueueRoute')

	def run(self):

vsudilov / docker_cleanup.sh

Created June 30, 2014 15:22

Docker cleanup containers+images

	docker rm $(docker ps -a -q)
	docker rmi $(docker images \| awk '/^<none>/ {print $3}')