Setup Excercise

Download and install the Public Signing Key:

wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -

Add repository definition:

echo "deb https://artifacts.elastic.co/packages/5.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-5.x.list

Install logstash from repository:

sudo apt-get install logstash

Create a manual pipeline for Logstash

cd /usr/share/logstash
sudo bin/logstash -e 'input { stdin { } } output { stdout {} }'

-e: enable specifying configuration directly from the command line
stdin: file handle that process reads to get information from you, human
stdout: process writes log information to this file handle
After pipeline has started, type:
```
Hello World!
```
And press enter

Expected response:

2017-06-20T01:22:14.405+0000 0.0.0.0 Hello World!

Logstash adds a timestamp and an ip address to the message we sent
To exit Logstash use keyboard combination ctrl-d