Run multiple vNodes on the same machine/cloud VM

incognito_eth.sh

#!/bin/bash

#***********************************************************************************************************
#
#INSTRUCTIONS FOR SETTING UP YOUR NODE(S)...
#
#Prep a spare PC with ubuntu server 18 or higher installed and copy this script (after adding your keys)
#to a thumb drive (make sure its formatted in fat or fat32).  Use notepad to edit the file to add your keys and make sure you keep the double quotes
#
#1.  install a copy of ubuntu server on a spare pc (ubuntu server, basic server, no gui, i am using 18LTS, but 20LTS is the latest)
#2.  sudo apt-get update
#3.  sudo apt-get upgrade
#4.  sudo apt install -y docker.io   (you can skip this if you want, as the script will install docker, but
#    after it does so, it requires a reboot of the server, so this makes things easier)
#5.  cd /
#6.  sudo fdisk -l (or "lsblk) and note the parition location of your usb drive
#7.  sudo mkdir nodes
#8.  sudo mkdir /media/usb-drive 
#9.  sudo mount /dev/sda1 (<--whatever is the usb drive location found with fdisk command above) /media/usb-drive
#10.  cd /media/usb-drive
#11.  sudo cp incognito_eth.sh /nodes
#12.  cd /nodes
#13.  sudo umount /media/usb-drive   (you can now remove your thumbdrive)
#14.  sudo ./incognito_eth.sh
#
#
#***********************************************************************************************************

validator_keys=(
  "KEY 1"
  "KEY 2"
  "KEY 3"
  ...
  "KEY X"
)

#***********************************************************************************************************************************
#If running additional physical machines, modify 0 value to
#neccessary bump to start at a higher port number and node count
#***********************************************************************************************************************************
declare -i iteration_bump
iteration_bump=0

run()
{
  bootnode="mainnet-bootnode.incognito.org:9330"
  latest_tag=$1
  current_tag=$2

#********************************************************************
#NEED TO ADD CODE HERE TO FIRST CHECK IF DOCKER CONTAINER IS THERE BEFORE TRYING TO DELETE
#THIS WILL PREVENT THE ERROR MESSAGE WE ARE SEEING
#**********************************************************************
  for i in "${!validator_keys[@]}"
  do
    declare -i b
    b=i+iteration_bump
    docker rm -f "inc_mainnet_$b"
  done

  if [ "$current_tag" != "" ]
  then
    docker image rm -f incognitochain/incognito-mainnet:${current_tag}
  fi
  
  if [ ! -d "$PWD/eth-mainnet-data" ]
  then
    mkdir $PWD/eth-mainnet-data
    chmod -R 777 $PWD/eth-mainnet-data
  fi

  docker pull incognitochain/incognito-mainnet:${latest_tag}
  
  #*********************************************************************************
  #RECEIVING AN ERROR HERE "ERROR RESPONSE FROM DAEMON: NETWORK WITH NAME INC_NET ALREADY EXISTS".  MAYBE ITS ONLY ON SUBSEQUENT RUNS?  Either way, lets see if there is a check option here to check if it exists before trying to create it
  docker network create --driver bridge inc_net || true

  #*************************************************************************************
  #RECEVIGIN AN ERROR I THINK IS HERE "ERROR RESPONSE FROM DAEMON: CONFLICT.  THE CONTAINER NAME "/ETH_MAINENET" IS ALREADY IN USE BY CONTAINER "DFS.....DFSDF".  YOU HAVE
  #TO REMOVE (OR RENAME) THAT CONTAINER TO BE ABLE TO REUSE THAT NAME."
  #
  #THIS MAY ONLY SHOW UP ON SUBSEQUENT RUNS, NEED TO CHECK THIS, BUT EITHER WAY SHOULD TRY AND RESOVLE
  docker run --restart=always --net inc_net -d --name eth_mainnet -p 8545:8545 -p 30303:30303 -v $PWD/eth-mainnet-data:/geth -it ethereum/client-go --syncmode light --datadir /geth --rpcaddr 0.0.0.0 --rpcport 8545 --rpc --rpccorsdomain "*"

  for i in "${!validator_keys[@]}"
  do
    declare -i b
    b=i+iteration_bump
    docker run --restart=always -p $((9334 + b)):$((9334 + b)) -p $((9433 + b)):$((9433 + b)) --net inc_net -e NODE_PORT=$((9433 + b)) -e RPC_PORT=$((9334 + b)) -e BOOTNODE_IP=$bootnode -e GETH_NAME=eth_mainnet -e MININGKEY=${validator_keys[$i]} -e TESTNET=false -e LIMIT_FEE=1 -v $PWD/data${i}:/data -itd --name inc_mainnet_${b} incognitochain/incognito-mainnet:${latest_tag}
  done
}

if [ -x "$(command -v docker)" ]; then
    echo "Docker Already Installed"
else
    echo "Installing Docker"
    bash -c "wget -qO- https://get.docker.com/ | sh"
    sudo usermod -aG docker $USER
    echo "PLEASE RESTART YOUR COMPUTER AND RE-RUN THIS SCRIPT"
    exit
fi

ps aux | grep 'incognito.sh' | awk '{ print $2}' | grep -v "^$$\$" | xargs kill -9

current_latest_tag=""
while [ 1 = 1 ]
do
  tags=`curl -X GET https://registry.hub.docker.com/v1/repositories/incognitochain/incognito-mainnet/tags  | sed -e 's/[][]//g' -e 's/"//g' -e 's/ //g' | tr '}' '\n'  | awk -F: '{print $3}' | sed -e 's/\n/;/g'`

  sorted_tags=($(echo ${tags[*]}| tr " " "\n" | sort -rn))
  latest_tag=${sorted_tags[0]}

  if [ "$current_latest_tag" != "$latest_tag" ]
  then
    run $latest_tag $current_latest_tag
    current_latest_tag=$latest_tag
  fi

  for i in "${!validator_keys[@]}"
  do
    declare -i b
    b=i+iteration_bump
    docker start "inc_mainnet_$b"
  done

  sleep 36s

done