Difference between revisions of "Relay Node"

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2. Setup crontab to reboot daily.  Below script selects nano with "1" and sets
 
2. Setup crontab to reboot daily.  Below script selects nano with "1" and sets
 
the system to reboot weekly at 6 am.
 
the system to reboot weekly at 6 am.
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(you may be prompted to press Y when using apt-get)
  
 
<pre>sudo apt-get install nano
 
<pre>sudo apt-get install nano
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3. Install build tools, and build Mochimo
 
3. Install build tools, and build Mochimo
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(you may be prompted to press Y when using apt-get)
  
 
<pre>cd  
 
<pre>cd  

Revision as of 15:11, 8 February 2021

How to Deploy a Mochimo VPS Relay Node

Summary

The below steps will allow you to set up a VPS node that self-reboots weekly, installs the Mochimo server in a ramdisk (for high performance) creates a local mochimo service, and automatically restarts the Mochimo server as a non solving node upon reboot.

Audience

People who want to support the network by operating a node to relay transactions / blocks.

Minimum System Requirements

Ubuntu 16.04 LTS 1 vCPU 2 GB RAM 10 GB Hard Disk

Create a new user for Mochimo

1 Log into root user on your VPS.

2. Create a new user specific for this Mochimo relay node.

adduser mochimorelay

3. Enter a strong password. (you can return through the prompts asking for user details, they can all be blank)

4. Give your new user Sudo permissions.

usermod -aG sudo mochimorelay

5. Switch to your new user.

su - mochimorelay

If you've sucessfully created a new user with Sudo permissions your terminal should say something like:

To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

You are now ready to start your node deployment.

Deployment Steps

1. Create ramdisk directory.

sudo mkdir /mnt/ramdisk

2. Setup crontab to reboot daily. Below script selects nano with "1" and sets the system to reboot weekly at 6 am.
(you may be prompted to press Y when using apt-get)

sudo apt-get install nano

cd /etc
sudo crontab -e

File Contents:

0 6 * * 1 /sbin/shutdown -r

3. Install build tools, and build Mochimo
(you may be prompted to press Y when using apt-get)

cd 
sudo apt-get install git
sudo apt-get install build-essential
git clone https://github.com/mochimodev/mochimo
cd mochimo/src
./makeunx bin -DCPU
./makeunx install

4. Tar the binary directory, and copy to /mochimorelay

cd ..
tar -czvf bin.tgz bin
cp bin.tgz /home/mochimorelay/bin.tgz
cd ..
rm -rf mochimo

5. Set the fstab to load the ramdisk on reboot

sudo nano /etc/fstab

File Contents (append to bottom of file):

tmpfs       /mnt/ramdisk tmpfs   nodev,nosuid,nodiratime,size=1024M

6. Create the systemd system service to start Mochimo on boot.

cd /etc/systemd/system
sudo nano mochimo.service

File Contents:

[Unit]
Description=Mochimo Server

[Service]
ExecStart=/home/mochimorelay/start-mochimo.sh

[Install]
WantedBy=default.target

7. Make the service privs 644:

sudo chmod 644 mochimo.service

8. Create the startup script off of /mochimorelay

sudo nano /home/mochimorelay/start-mochimo.sh

#! /bin/bash
sudo cp /home/mochimorelay/bin.tgz /mnt/ramdisk
cd /mnt/ramdisk
sudo tar -xzvf bin.tgz
cd bin
cp maddr.mat maddr.dat
./gomochi d -n -D

9. Make the startup script executable:

sudo chmod +x /home/mochimorelay/start-mochimo.sh

10. Start the service, and reboot to confirm:

sudo systemctl enable mochimo.service
sudo systemctl start mochimo.service
sudo reboot