ikocev

#I manage to make it working with the following versions:
#Elasticsearch 5.6.16. - (latest 5 version) since newer major is having issue with logstash and content type header. The problem origin at logstash not being able to run on raspberry with newer version (ffi issue - well known one).
#Logstash 2.4.0 - I know, right! It's 2019 almost 2020.
#Kibana - I didn't installed kibana on the PI, because I had it locally on my laptop. The problem was to configure 
#elasticsearch to broadcast on 0.0.0.0 which puts the service into PROD mode. That open one big issues:
#JVM have to run as a server to enable hotspot (-server). Tried that one but on PI JVM simply can't be run with HotSpot
#Instead, I did proxy forward with nginx for elasticsearch, and then configured my kibana to use nginx proxy.

# ============= Elasticsearch =========== #
cd /tmp/

ikocev

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

ikocev

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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