Another One-click Hive Engine Witness Script

Script Updates

With the recent release of 1.4.0, my witness did NOT just update and move on. I ran into a TON of problems and ultimately had to just start over completely with a fresh deploy.

In my work, my script was updated quite a bit and I've gotten it back into a "one-click" state. You can literally go to Digital Ocean, deploy an Ubuntu 20.10 droplet, and simply paste in the script with their User Data feature.

This does download the mongodb and restore it, which does take awhile. You can log into the server and watch the progress with this command tail -fn5 /var/log/cloud-init-output.log

Once the script is done, just type mongo and then show dbs to confirm the hsc database exists, and is around 15GB.

Then, just two commands:

cd /var/witness
pm2 start app.js --no-treekill --kill-timeout 10000 --no-autorestart --name engwit

You can 'watch' the logs with pm2 logs but the real way to keep track is this:

grep ahead /root/.pm2/logs/engwit-out.log | tail

You're looking for Hive blockchain is 0 blocks ahead and again this can take awhile.

Finally, verify everything is working node find_divergent_block.js

This will generate some output, but hopefully ends with ok

If not, you have issues and may need to start over, but if you see ok then everything is in full working order!

Vote my witness

I appreciate all the support I've received for my witness but I have lost some votes and fallen quite a few positions so I'm actively working to build that up a bit more. You can vote for witnesses very easily.

The Script

#!/bin/bash
###################
## SET VARIABLES ##
###################
SERVER_NAME="witness"
GIT_REPO="https://github.com/hive-engine/steemsmartcontracts.git"
GIT_TAG=he_v1.4.0

##################
## INIT UPDATES ##
##################
apt-get update \
  -o Dpkg::Options::=--force-confold \
  -o Dpkg::Options::=--force-confdef \
  -y --allow-downgrades --allow-remove-essential --allow-change-held-packages

####################
## INSTALL BASICS ##
####################
apt install git -y
apt install ufw -y

################
## CLONE REPO ##
################
mkdir -p /var/$SERVER_NAME
cd /var/$SERVER_NAME
git clone --recursive --branch $GIT_TAG $GIT_REPO ./

#####################
## INSTALL MONGODB ##
#####################
cd /var/$SERVER_NAME
wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.4.list
apt-get update -y
apt-get -y -o Dpkg::Options::="--force-confold" install mongodb-org
sed -i '/replication/a \ \ \ replSetName: "rs0"' /etc/mongod.conf
sed -i 's/#replication/replication/g' /etc/mongod.conf
systemctl stop mongod
systemctl start mongod
mongo --eval "rs.initiate()"

##############
## SET SWAP ##
##############
fallocate -l 2G /swapfile
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile

##################
## INSTALL NODE ##
##################
curl -sL https://deb.nodesource.com/setup_15.x | bash -
apt-get install -y nodejs
apt-get -y install npm

#################
## FINAL SETUP ##
#################
cd /var/$SERVER_NAME
npm install dotenv
npm i
npm i -g pm2
sed -i 's/"startHiveBlock": 41967000/"startHiveBlock": 54107973/g' config.json
sed -i 's/"witnessEnabled": false/"witnessEnabled": true/g' config.json
ufw allow 5001

#####################
## SET WITNESS KEY ##
#####################
cat > /var/$SERVER_NAME/.env << EOF
ACTIVE_SIGNING_KEY=5K...
ACCOUNT=youraccount
EOF

################
## RESTORE DB ##
################
mongo --eval "rs.initiate()"
systemctl restart mongod
cd /var/$SERVER_NAME
wget https://cdn.rishipanthee.com/hiveengine/hsc_live.archive
systemctl restart mongod
mongorestore --gzip --archive=hsc_live.archive