truffle-config.ovm.js

// create a file at the root of your project and name it .env -- there you can set process variables
// like the mnemomic below. Note: .env is ignored by git in this project to keep your private information safe
require('dotenv').config();
const ganacheMnemonic = process.env["GANACHE_MNEMONIC"];
const goerliMnemonic = process.env["GOERLI_MNEMONIC"];
const mnemonic = 'test test test test test test test test test test test junk' // process.env["MNEMONIC"];

const infuraKey = process.env["INFURA_KEY"];

//uncomment to use mainnetMnemonic, be sure to set it in the .env file
//const mainnetMnemonic = process.env["MAINNET_MNEMONIC"]

const { ganache } = require('@eth-optimism/plugins/ganache');
const HDWalletProvider = require('@truffle/hdwallet-provider');

module.exports = {

  /**
  * contracts_build_directory tells Truffle where to store compiled contracts
  */
  contracts_build_directory: './build/optimism-contracts',

  /**
  *  contracts_directory tells Truffle where to find your contracts
  */
  contracts_directory: './contracts/optimism',

  networks: {
    // development: {
    //   host: "127.0.0.1",     // Localhost (default: none)
    //   port: 8545,            // Standard Ethereum port (default: none)
    //   network_id: "*"       // Any network (default: none)
    // },
    // for use with local environment -- see README and list of available
    // scripts in package.json for steps to get this running on your local machine
    optimistic_ethereum: {
      network_id: 17,
      provider: function () {
        return new HDWalletProvider({
          mnemonic: {
            phrase: mnemonic
          },
          providerOrUrl: "http://127.0.0.1:8545/",
          addressIndex: 0,
          numberOfAddresses: 1,
          chainId: 17
        })
      }
    },
    optimistic_goerli: {
      network_id: 420,
      chain_id: 420,
      provider: function () {
        return new HDWalletProvider(goerliMnemonic, "https://optimism-goerli.infura.io/v3/" + infuraKey, 0, 1);
      }
    },
    // requires a mainnet mnemonic; you can save this in .env or in whatever secure location
    // you wish to use
    optimistic_mainnet: {
      network_id: 10,
      chain_id: 10,
      provider: function () {
        return new HDWalletProvider(mainnetMnemonic, "https://optimism-mainnet.infura.io/v3/" + infuraKey, 0, 1);
      }
    },
    dashboard: {
      host: "127.0.0.1",
      port: 24012,
      network_id: "*"
    }
  },

  mocha: {
    timeout: 100000
  },
  compilers: {
    solc: {
      version: "0.8.13",
      settings: {
        optimizer: {
          enabled: true,
          runs: 800
        }
      }
    },
  },
  db: {
    enabled: false
  }
}