João Maia jvrmaia

#Introduction to Devops Resources:

##Chapter 1

A Year living Freely - Chris Myers

http://youtu.be/rK53C-xyPWw
Programs as Values Pure Composable Database Access in Scala. In general each talk from Rob Norris is very useful for learning.

https://m.youtube.com/watch?v=XHiTK4UOIf0

To the guys that are learning a language and ever ask about a problem to solve or an idea to a project.

Enjoy it

For educational reasons I've decided to create my own CA. Here is what I learned.

Lets get some context first.

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

	#!/bin/bash
	#
	# Check a "few" things to help write more maintainable Go code.
	#
	# OK, it's fairly comprehensive. So simply remove or comment out
	# anything you don't want.
	#
	# Don't forget to install (go get) each of these tools.
	# More info at the URLs provided.
	#

	#!/usr/bin/python

	from mininet.topo import Topo

	from mininet.cli import CLI
	from mininet.net import Mininet
	from mininet.util import dumpNodeConnections
	from mininet.log import setLogLevel

	from mininet.node import RemoteController

	#!groovy
	# Best of Jenkinsfile
	# `Jenkinsfile` is a groovy script DSL for defining CI/CD workflows for Jenkins
	node {
	}

	server {
	listen 80 default_server;
	listen [::]:80 default_server ipv6only=on;
	server_name www.server.name server.name;
	return 301 https://$server_name$request_uri;
	}

	server {
	listen 443 default_server;
	listen [::]:443 default_server ipv6only=on;

	Producer

	Setup
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1
	bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3

	Single thread, no replication

	bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196