✅mantra

status: active - testnet phase 1

source

https://docs.mantrachain.io/operate-a-node/join-testnet/testnet-phase-1#challenges

system requirements

minimum

CPU: 2vCPU (1 core)
Memory: 4 GB
Storage: 200 - 500 GB

recommended

CPU: 4vCPU (2 cores)
Memory: 8 - 16GB
Storage: 500 - 1000 GB

update system & install prerequisites.

sudo apt update
sudo apt upgrade
sudo apt install -y curl git jq lz4 build-essential unzip

bash <(curl -s "https://raw.githubusercontent.com/MANTRA-Finance/public/main/go_install.sh")
source .bash_profile

install binary.

mkdir bin
cd bin
source ~/.profile

wget https://<Location to be provided>/mantrachaind-linux-amd64.zip
unzip mantrachaind-linux-amd64.zip
rm -rf mantrachaind-linux-amd64.zip

install cosmwasm library

sudo wget -P /usr/lib https://github.com/CosmWasm/wasmvm/releases/download/v1.3.0/libwasmvm.x86_64.so

initialise node

mantrachaind init <your-moniker> --chain-id mantrachain-testnet-1

  • where <your-moniker>is the moniker and can be any valid string name (e.g. val-01),

  • and mantrachain-testnet-1 is the Chain ID and must be exactly as specified.

download "genesis.json" - TESTNET

Obtain the MANTRA Chain genesis.json for the MANTRA Chain TESTNET.

curl -Ls https://<Location to be provided>/genesis.json > $HOME/.mantrachain/config/genesis.json

Update the config.toml with the seed node and the peers for the MANTRA Chain TESTNET.

CONFIG_TOML="$HOME/.mantrachain/config/config.toml"
SEEDS="69fa5f7927f2b013f152b6dfc56324156feb1973@34.172.80.207:26656"
PEERS="182a37a556ff0b6733fe58020e7746de3292492d@35.222.198.102:26656,64691a4202c1ad29a416b21ce21bfc9659783406@34.136.169.18:26656"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $CONFIG_TOML
sed -i.bak -e "s/^seeds =.*/seeds = \"$SEEDS\"/" $CONFIG_TOML
external_address=$(wget -qO- eth0.me)
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $CONFIG_TOML
sed -i 's|^minimum-gas-prices *=.*|minimum-gas-prices = "0.0002uaum"|g' $CONFIG_TOML
sed -i 's|^prometheus *=.*|prometheus = true|' $CONFIG_TOML
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $CONFIG_TOML

install cosmovisor

go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@v1.4.0
mkdir -p ~/.mantrachain/cosmovisor/genesis/bin
mkdir -p ~/.mantrachain/cosmovisor/upgrades
cp ~/bin/mantrachaind ~/.mantrachain/cosmovisor/genesis/bin

configure "mantrachaind" as a service

sudo tee /etc/systemd/system/mantrachaind.service > /dev/null << EOF
[Unit]
Description=Mantra Node
After=network-online.target
[Service]
User=$USER
ExecStart=$(which cosmovisor) run start
Restart=on-failure
RestartSec=3
LimitNOFILE=10000
Environment="DAEMON_NAME=mantrachaind"
Environment="DAEMON_HOME=$HOME/.mantrachain"
Environment="DAEMON_ALLOW_DOWNLOAD_BINARIES=false"
Environment="DAEMON_RESTART_AFTER_UPGRADE=true"
Environment="UNSAFE_SKIP_BACKUP=true"
[Install]
WantedBy=multi-user.target
EOF

starting, stoping and restarting service

#reload, enable and start
sudo systemctl daemon-reload
sudo systemctl enable mantrachaind
sudo systemctl start mantrachaind

#stop
sudo systemctl stop mantrachaind
​
#restart
sudo systemctl restart mantrachaind

#logs
sudo journalctl -xefu mantrachaind
​
#logs - filtered on block height lines
sudo journalctl -xefu mantrachaind -g ".*txindex"

Once started, the node will take some time to sync with the blockchain. Visit https://explorer.testnet.mantrachain.io/mantrachain to see the current height of the blockchain. Use the journalctl command to check on the node's progress.

convert node into a validator

You can, either, create a new account or import an existing account.

create keys

Create a key file. 

mantrachaind config keyring-backend file

Generate a new public key with mnemonic phrase.

mantrachaind keys add <your-moniker-keys>

where <your-moniker-keys>is the moniker and can be any valid string name (e.g. validator01-keys)

The above command will produce output like this:

- address: mantra1q55nrzygas0nespfu8mwt2yntq8gxll3kyug82
  name: validator01-keys
  pubkey: '{"@type":"/cosmos.crypto.secp256k1.PubKey","key":"A/YebpAX8AqUNcNXcqIy53fJo8BGFCSaQA5A0XQWMlCG"}'
  type: local
	
	
**Important** write this mnemonic phrase in a safe place.
It is the only way to recover your account if you ever forget your password.
	
expect kid unfair uniform calm debris meadow despair vintage arrive walnut vast upset cart step funny truth vault naive note capable spray shine human

KEEP THE MNEMONIC PHRASE IN A SAFE PLACE!

import keys

Alternatively, if you already have an existing mnemonic that you'd like to use, then run the following:

$ mantrachaind keys add <your-moniker-keys> --recover

faucet

https://faucet.testnet.mantrachain.io/

1 IP address can get 1uaum every 24 hours. In case you need to transfer uaum tokens between wallets, follow this command

mantrachaind tx bank send sender_address receiver_address amount_to_send --gas="auto" --gas-adjustment 2 --gas-prices="0.0001uaum" -y

Replace sender_address receiver_address amount_to_send with your values

execute "create-validator" transaction

You can create new validator from the public key of your node with the following command:

mantrachaind tx staking create-validator \
  --amount=1000000uaum \
  --pubkey=$(mantrachaind tendermint show-validator) \
  --moniker=<MONIKER> \
  --chain-id=mantrachain-testnet-1 \
  --commission-rate="0.10" \
  --commission-max-rate="0.20" \
  --commission-max-change-rate="0.01" \
  --min-self-delegation="1000000" \
  --gas="auto" \
  --gas-adjustment 2 \
  --gas-prices="0.0001uaum" \
  --from=<KEY-NAME>

execute "edit-validator" transaction

mantrachaind tx staking edit-validator \
  --new-moniker=<NEW-MONIKER> \
  --website="https://your-website.com" \
  --details="Some impressive info about your validator." \
  --chain-id=mantrachain-testnet-1 \
  --commission-rate="0.10" \
  --gas="auto" \
  --gas-adjustment 2 \
  --gas-prices="0.0001uaum" \
  --from=<KEY-NAME>

explorer

https://explorer.indonode.net/mantra-testnet/staking

https://explorer.testnet.mantrachain.io/mantrachain

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