Elastic howto install elastic node on raspberry pi

Howto
Setup a Node on Raspberry Pi

1. Download Raspbian + SD-Formatter
First download the SD-Formatter
Next download Raspbian

2. Format SD-Card + Copy Raspbian onto SD-Card
You can use any micro sd-card reader you want....
Cards over 32GB -> Follow the instructions on https://wwwraspberrypi.org/....
Start the SD-Formatter tool
Set 'Format size adjustment' option to ON
Extract the Raspbian zip file to a folder and copy the content to the SD-Card

3. Next ... Insert the SD-Card into your Pi and boot
Choose: Raspbian (Recommended)

4. Enable SSH for remote access + login remotely
Before you can connect remotely open a terminal and get the Pr's IP address
Now you can use Putty to connect remotely to your Raspberry Pi
Let the fun begin!!!
Default Raspbian login:
user: pi
pass: raspberry

5. Prepare your Pi - Install basic needs - Configure what is needed
First things first - change your default pi password
min 16 chars, min one big letter, min one small letter, min one number
Update and Upgrade your system first - All commands used are found in the comments below
Confirm with 'yes'
Install some basic packages
---
MC - Filemanager
NTP - Syncs your clock
fail2ban - helps to protect
mtop - monitoring tool
screen - run multiple screens in background
nano - easy text editor
---

6. Install Java
Java is already present
Check if you have java 1.8.x as this version is supported by Elastic
Unzip the downloaded "JavaFX Embedded SDK"
Copy the following files into the JDK 8 installation directory
Remember the path, you need it in a minute
Now we need to set / check if java and javac defaults are pointing to  the right location

7. Configure Firewall
install "Uncomplicated Firewall"
Allow SSH - Allow Elastic port 17876 - enable firewall

8. Create a new user - Install Elastic Wallet
Create a new user
Use a strong password:
min 16 chars, min one big letter, min one small letter, min one number
Now it's time to log out (exit), start putty again, log in as the user     elastic
Download Elastic Litewallet
Now compile Elastic
Change Directory into the extracted folder
If you get javafX errors it means there went something wrong, however your webbased Elastic Node will still function properly
See Chapter 6 in this video

9. Short howto use Screen
One screen session created
To detach from this screen press CTRL A D
Resume / reconnect to the running screen in de background by using the command: screen -r
Back in the running screen session. Now let's startup elastic and switch between the main session and this screen.
Ready!

10. Update Elastic Wallet
Update elastic
Make sure elastic is not running
Change directory to Elastic

11. Create SSL Certificate - Configure Elastic
Create a SSL certificate for elastic webwallet and protection
keystore password: use a strong password (min 32 random chars)
Save it somewhere, you'll need it later
Create a new config file so we can set  the passwords correctly
The content of the file can be found in the  description down below
Generate a strong password and paste it here
Paste the password you provided during the SSL Cert Generation
Press CTRL X to exit, Press Yes and confirm filename

12. Run the Elastic Node
Run Elastic in a screen session and you are good to go
browse to   https://'your-pi-ip':17876
Create a portforward on your router to access it from the internet
Detach and keep it running
Open your browser, go to https://'your-pi-ip':17876
You'll get a warning here that cert is untrusted.
You know that you generated it so you know that it's trusted. Just bypass this cert warning.

13. Optional RPI Fine tuning
Disable the Desktop GUI to save resources
Since we aren't using a window manager we can reallocate some of the GPU memory to the OS
Set the value to 16.
start the Node at boot using cron task scheduler.
Run crontab as the Elastic user!
Reboot your RPI to make it all effective