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# Hardware requirements

We recommend the following hardware specifications:

CharacteristicSpecification
Operating SystemUbuntu 18.04 or later LTS
Number of CPUs4
RAM8GB
NVMe SSD200GB

Official Document: https://docs.prysm.network/

1. Update & install dependencies

Terminal window
sudo apt update && sudo apt upgrade -y
sudo apt install curl git wget htop tmux build-essential jq make lz4 aria2 pv gcc unzip -y

2. Install Go

Terminal window
cd $HOME
VER="1.22.2"
wget "https://golang.org/dl/go$VER.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$VER.linux-amd64.tar.gz"
rm "go$VER.linux-amd64.tar.gz"
[ ! -f ~/.bash_profile ] && touch ~/.bash_profile
echo "export PATH=$PATH:/usr/local/go/bin:~/go/bin" >> ~/.bash_profile
source $HOME/.bash_profile
[ ! -d ~/go/bin ] && mkdir -p ~/go/bin
go version

3. Set Vars

Terminal window
MONIKER="Moniker_name"
echo "export MONIKER=$MONIKER" >> $HOME/.bash_profile
echo "export PRYSM_CHAIN_ID="prysm-devnet-1"" >> $HOME/.bash_profile
echo "export PRYSM_PORT="29"" >> $HOME/.bash_profile
source $HOME/.bash_profile

4. Download Binary

Terminal window
cd $HOME
rm -rf prysm
git clone https://github.com/kleomedes/prysm prysm
cd prysm
git checkout v0.1.0-devnet
make install
prysmd version

5. Config and Init app

Terminal window
prysmd init $MONIKER --chain-id $PRYSM_CHAIN_ID
sed -i -e "s|^node *=.*|node = \"tcp://localhost:${PRYSM_PORT}657\"|" $HOME/.prysm/config/client.toml
sed -i -e "s|^keyring-backend *=.*|keyring-backend = \"os\"|" $HOME/.prysm/config/client.toml
sed -i -e "s|^chain-id *=.*|chain-id = \"prysm-devnet-1\"|" $HOME/.prysm/config/client.toml

6. Download Genesis file and Addrbook

Terminal window
wget -O $HOME/.prysm/config/genesis.json https://josephtran.co/prysm/genesis.json
wget -O $HOME/.prysm/config/addrbook.json https://josephtran.co/prysm/addrbook.json

7. Set custom port (Optional)

Terminal window
sed -i.bak -e "s%:1317%:${PRYSM_PORT}317%g;
s%:8080%:${PRYSM_PORT}080%g;
s%:9090%:${PRYSM_PORT}090%g;
s%:9091%:${PRYSM_PORT}091%g;
s%:8545%:${PRYSM_PORT}545%g;
s%:8546%:${PRYSM_PORT}546%g;
s%:6065%:${PRYSM_PORT}065%g" $HOME/.prysm/config/app.toml
sed -i.bak -e "s%:26658%:${PRYSM_PORT}658%g;
s%:26657%:${PRYSM_PORT}657%g;
s%:6060%:${PRYSM_PORT}060%g;
s%:26656%:${PRYSM_PORT}656%g;
s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):${PRYSM_PORT}656\"%;
s%:26660%:${PRYSM_PORT}660%g" $HOME/.prysm/config/config.toml

8. Config Seeds and Peers

Terminal window
SEEDS="e3156873994bfbb1999bbf6e4a1ad9cb2f14139e@seed-prysm.j-node.net:29656"
PEERS="e3156873994bfbb1999bbf6e4a1ad9cb2f14139e@seed-prysm.j-node.net:29656,ff15df83487e4aa8d2819452063f336269958d09@prysm-testnet-peer.itrocket.net:25657,01e40fe961c9522936a8bb7ede533198614abf9f@[2a0e:dc0:2:2f71::1]:14256,e0daf1e5649feba5ba3787288e66e1c9921b2c4c@149.50.96.153:19756,50dcf516699f45351037d08c0074629a0748d446@[2a03:cfc0:8000:13::b910:277f]:14256,69509925a520c5c7c5f505ec4cedab95073388e5@136.243.13.36:29856,2334e9eb772d5aaf9c48a2885c41d5c33e911912@65.109.92.163:3020,88ad3a3b9b981f0bbb52d5c996d0f7e1aa9426fa@65.108.206.118:61256,66ea180127711b96e35683be6e6f1cffc2b04e0a@184.107.169.193:25656,f9758cec18d2af1cca6431a42ec5b68230ae12c8@149.102.142.113:40656,170bf5fa23b18d19148ca9a52dbdde485ad59f7b@65.109.79.185:15656,844f4b8382f6abf86ad13fcd2d384214605b094e@144.76.155.11:26656"
sed -i -e "s/^seeds *=.*/seeds = \"$SEEDS\"/; s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.prysm/config/config.toml

9. Config Pruning & indexer

Terminal window
sed -i -e "s/^pruning *=.*/pruning = \"custom\"/" $HOME/.prysm/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"100\"/" $HOME/.prysm/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.prysm/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"50\"/" $HOME/.prysm/config/app.toml
Terminal window
sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.00001uprysm\"/" $HOME/.prysm/config/app.toml
sed -i -e 's|^indexer *=.*|indexer = "null"|' $HOME/.prysm/config/config.toml
sed -i 's|^prometheus *=.*|prometheus = true|' $HOME/.prysm/config/config.toml

10. Create service file

Terminal window
sudo tee /etc/systemd/system/prysmd.service > /dev/null <<EOF
[Unit]
Description=Prysm-testnet
After=network-online.target


[Service]
User=$USER
ExecStart=$(which prysmd) start --home $HOME/.prysm
Restart=on-failure
RestartSec=3
LimitNOFILE=65535


[Install]
WantedBy=multi-user.target
EOF
Download snapshot
Terminal window
cd $HOME
rm -f prysm_snapshot.lz4
aria2c -x 16 -s 16 -k 1M https://josephtran.co/prysm/prysm_snapshot.lz4
Terminal window
prysmd tendermint unsafe-reset-all --home $HOME/.prysm
lz4 -dc prysm_snapshot.lz4 | pv | tar -xf - -C $HOME/.prysm

Enable service and start node

Terminal window
sudo systemctl daemon-reload
sudo systemctl enable prysmd
sudo systemctl start prysmd && sudo journalctl -fu prysmd -o cat

# Check status

Terminal window
prysmd status | jq
Terminal window
prysmd status | jq '{ latest_block_height: .sync_info.latest_block_height, catching_up: .sync_info.catching_up }'

# Block sync left:

Terminal window
while true; do
 local_height=$(prysmd status | jq -r '.sync_info.latest_block_height');
  network_height=$(curl -s https://rpc-prysm.josephtran.xyz/status | jq -r '.result.sync_info.latest_block_height')
  blocks_left=$((network_height - local_height));


  echo -e "\033[1;38mYour node height:\033[0m \033[1;34m$local_height\033[0m | \033[1;35mNetwork height:\033[0m \033[1;36m$network_height\033[0m | \033[1;29mBlocks left:\033[0m \033[1;31m$blocks_left\033[0m";
  sleep 5;
done

12. Create validator

Terminal window
prysmd keys add "wallet_name"
Faucet token
  • Faucet link:

Prysm-devnet-faucet
  • Explorer:

Prysm Scan
Check Balance
Terminal window
prysmd q bank balances $(prysmd keys show "wallet_name" -a)
Create validator
  • Create validator.json file
Terminal window
cd $HOME
echo "{\"pubkey\":{\"@type\":\"/cosmos.crypto.ed25519.PubKey\",\"key\":\"$(prysmd comet show-validator | grep -Po '\"key\":\s*\"\K[^"]*')\"},
    \"amount\": \"1000000uprysm\",
    \"moniker\": \"Moniker_name\",
    \"identity\": \"\",
    \"website\": \"\",
    \"security\": \"\",
    \"details\": \"\",
    \"commission-rate\": \"0.1\",
    \"commission-max-rate\": \"0.2\",
    \"commission-max-change-rate\": \"0.01\",
    \"min-self-delegation\": \"1\"
}" > validator.json
  • Create a validator with .json file
Terminal window
prysmd tx staking create-validator validator.json \
  --from "wallet_name" \
  --chain-id prysm-devnet-1 \
  --gas auto --gas-adjustment 1.5 \
  -y