Ignacio Tolstoy naxhh

Kafka 0.11.0.0 (Confluent 3.3.0) added support to manipulate offsets for a consumer group via cli kafka-consumer-groups command.

List the topics to which the group is subscribed

kafka-consumer-groups --bootstrap-server <kafkahost:port> --group <group_id> --describe

Note the values under "CURRENT-OFFSET" and "LOG-END-OFFSET". "CURRENT-OFFSET" is the offset where this consumer group is currently at in each of the partitions.

Reset the consumer offset for a topic (preview)

Protractor API

http://angular.github.io/protractor/#/api

Note: Most commands return promises, so you only resolve their values through using jasmine expect API or using .then(function()) structure

Based on this post: https://spagettikoodi.wordpress.com/2015/01/14/angular-testing-cheat-sheet/ by @crystoll

Control browser

browser.get('yoururl'); // Load address, can also use '#yourpage'

Articles

Python Cheatsheets
http://refcardz.dzone.com/refcardz/core-python
http://rgruet.free.fr/

Learn Python in 10 minutes
http://www.stavros.io/tutorials/python/
https://leanpub.com/learn-python

In this kata we'll use TDD to develop an object-oriented solution for the Rock-paper-scissors game.

The catch is that we can't use any conditionals, that is, if, switch, ternary operator or any other type of conditionals are not allowed.

It's an introductory kata which will help you to hone your OO skills.

This would be the initial code in Ruby:

class RockPaperScissors

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

	# Description:
	# Control marathon via hubot
	#
	# Configuration:
	# HUBOT_MARATHON_HOST=marathon.yourcompany.com:8080
	#
	# Commands:
	# hubot marathon - show the instances of all apps
	# hubot marathon <id> - show the number of instances for app <id>
	# hubot scale <id> <number> - scale app ID to <number> instances

	sudo apt-get update
	sudo apt-get install -y libssl1.0.0 openssl

	# Confirm Build Date is at least Aril 7th 2014
	openssl version -a

	# Restart all services listed by this command:
	sudo lsof -n \| grep ssl \| grep DEL

	function onlyStatic (middleware) {
	return function (req, res, next) {
	var match = /(\.css\|\.eot\|\.gif\|\.html\|\.js\|\.png\|\.svg\|\.ttf\|\.woff\|\.jpg)($\|\?.*$)/ig.exec(req.originalUrl);
	if (!match) return next();
	middleware(req, res, next);
	};
	}

	//usage
	this.use(onlyStatic(express.static(__dirname + "/public")));

	server {
	# Redirect any subdomain to the root domain
	# to be captured by next server block
	server_name *.example.com;
	return 301 $scheme://example.com$request_uri;
	}

	server {
	root /var/www;
	index index.html index.htm;

	# SSH to Boot2Docker with `boot2docker ssh`
	# add your IP to command bellow, run this command as superuser
	/usr/local/bin/generate_cert --host=boot2docker,127.0.0.1,10.0.2.15,192.168.59.103 --ca=/var/lib/boot2docker/tls/ca.pem --ca-key=/var/lib/boot2docker/tls/cakey.pem --cert=/var/lib/boot2docker/tls/server.pem --key=/var/lib/boot2docker/tls/serverkey.pem