Master of Ceremonies (MoC) Instance Initial Steps

1) Login to MoC instance and go to the moc directory

ssh -i ubuntu@moc-ec2-user.DNS/Address

ubuntu@ip-moc-ec2-user:~ cd ../moc

2) Replace the existing spec.json file, changing parameters as required:

1. Copy https://raw.githubusercontent.com/poanetwork/poa-chain-spec/dai-deployment/spec.json​

2. sudo nano spec.json paste and make changes as needed:

• name must be {{ network_name }}

• engine.authorityRound.params.blockReward must be 0x0

• engine.authorityRound.params.validators.multi.0.list must contain the Master of Ceremony address

• params.networkID must be a unique ID for your network. <See a list of current ids>

• genesis.gasLimit - change if needed

3) Adjust the node.toml file on MoC with the following settings: (we use nano in this demonstration, feel free to use vim or another editor of your choice)

sudo nano node.toml

• parity.chain must be a path to spec.json

• account.unlock must contain the Master of Ceremony address. (do not uncomment yet)

• mining.min_gas_price is a min gas price in Wei

• mining.engine_signer must contain the Master of Ceremony address

• mining.gas_floor_target is a max block size in gas

4) Launch the Master of Ceremony node

sudo systemctl restart poa-parity && sleep 10 && sudo systemctl restart poa-netstats

Prepare Register & Certifier Contracts

1) Clone https://github.com/parity-contracts/name-registry repository

sudo git clone https://github.com/parity-contracts/name-registry
cd name-registry

• Set gasPrice to 0 in truffle-config.js. Replace port 7545 with Port 8545.

    diff --git a/truffle-config.js b/truffle-config.js
    index ee5a576..62681ac 100644
    --- a/truffle-config.js
    +++ b/truffle-config.js
    @@ -4,8 +4,9 @@ module.exports = {
       networks: {
         development: {
           host: "127.0.0.1",
    -      port: 7545,
    +      port: 8545,
           network_id: "*",
    +      gasPrice: "0"
         },
       },
     };

• Unlock Master of Ceremony in node.toml.

  • cd.. to moc directory

  • sudo nano node.toml

  • Uncomment #unlock=[...]

  • Restart Parity: sudo systemctl restart poa-parity && sleep 10 && sudo systemctl restart poa-netstats

2) Deploy Contracts

cd name-registry
sudo npm i
sudo node_modules/.bin/truffle migrate --reset --network development

Update bootnodes.txt

You need to write the current MoC's enode to the bootnodes.txt file.

1) Run this command on the MoC node to retrieve the current enode

curl --data '{"method":"parity_enode","params":[],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST localhost:8545

2) Copy the json result

3) sudo nano bootnodes.txt

4) Replace the default enodes with the current enode and save.

enode://your-enode-here:30303

Copy Items before exiting

• spec.json file - you will replace the Bootnode instance with this file. Example:

scp -i ~/.ssh/your-private-key ubuntu@moc-ec2-user.DNS/Address:/home/moc/spec.json your-local-folder/

• Addresses of the newly deployed Certifier and Registry contracts. Go to the name-registry subdirectory and execute:

grep -Rn \"address\": build/contracts/{SimpleCertifier.json,SimpleRegistry.json} 

• bootnodes.txt file - you will replace the Bootnode instance with this file.

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