barge/parity

Ocean private test net using Proof Of Authority consensus

Setup

0. Install docker and docker-compose
1. Run git clone https://github.com/oceanprotocol/docker-images.git
2. Run cd docker-images/parity
3. Run docker-compose up (add -d to run in daemon mode)
4. This will run 3 validator/authority nodes and 1 user node

Access JSON RPC

Access JSON RPC at http://127.0.0.1:8545.

Some handy curl commands

Send transaction

curl --data '{"jsonrpc":"2.0","method":"personal_sendTransaction","params":[{"from":"0x<address>","to":"0x<address>","value":"0x<value>"}, "<password if any>"],"id":0}' -H "Content-Type: application/json" -X POST localhost:8545

Unlock account

replace null with number of seconds to indicate how long account will be unlocked Account address goes in the first param (here is's just "0x")

curl --data '{"method":"personal_unlockAccount","params":["0x","hunter2",null],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST localhost:8545

New account

Using just a password

curl --data '{"method":"personal_newAccount","params":["password-hunter2"],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST localhost:8545

Using a recovery phrase and password

curl --data '{"method":"parity_newAccountFromPhrase","params":["stylus outing overhand dime radial seducing harmless uselessly evasive tastiness eradicate imperfect","hunter2"],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST localhost:8545

Refer to these sources for more goodies:

• https://github.com/paritytech/wiki
• https://github.com/paritytech/wiki/blob/master/JSONRPC-personal-module.md
• https://github.com/paritytech/wiki/blob/master/JSONRPC-parity_accounts-module.md

Instructions to add a validator node using Docker Compose

• Run the private network as described above
• Create a new validator account: curl --data '{"jsonrpc":"2.0","method":"parity_newAccountFromPhrase","params":["nodeX-phrase", "nodeX-password"],"id":0}' -H "Content-Type: application/json" -X POST localhost:8545
  • Returns something like this: {"jsonrpc":"2.0","result":"0x00aa39d30f0d20ff03a22ccfc30b7efbfca597c2","id":0}
• Copy the file parity/keys/UTC--2018-05-22T13-53-28Z--ed4d9a7c-4206-bbf3-673c-fdd1d41b4dcb to parity/authorities and rename it to validatorX.json (pick a better name) then modify the contents to improve indentation (optional)
• Add a simple text file named validatorX.pwd in parity/authorities and add the password nodeX-password (or whatever was specified in the "params":["nodeX-phrase", "nodeX-password"])
• Copy/paste a validator image definition section in the docker-compose.yml file and modify it to reflect the new node name and make sure to point to the new validatorX.json and validayorX.pwd files.
  • This is what will be added to the docker-compose.yml file:

  validatorX:
    image: parity/parity:stable
    command:
      --config /parity/config/validator.toml
      --engine-signer 0x00aa39d30f0d20ff03a22ccfc30b7efbfca597c2
    volumes:
      - ./parity/config:/parity/config:ro
      - validatorX:/root/.local/share/io.parity.ethereum/
      - ./parity/authorities/validatorX.json:/root/.local/share/io.parity.ethereum/keys/${NETWORK_NAME}/validator.json:ro
      - ./parity/authorities/validatorX.pwd:/parity/validator.pwd:ro
      - ./parity/nodeX.network.key:/root/.local/share/io.parity.ethereum/network/key:ro
    networks:
      my_net:
        ipv4_address: 172.16.0.13

• Make sure to assign a new ipv4_address address
• Specify the new account address in the --engine-signer option
• And add the name in the volumes section in the compose file:

volumes:
  validator0:
  validator1:
  validator2:
  validatorX:

• Generate a new bootnode key and add it here docker-images/parity/parity/nodeX.network.key
• Get an enode address and add it in both member.toml and validator.toml files in the bootnodes list under [network]
• Update the validators list in chain.json by adding the new account to the existing list

Notes

• We ran into an issue with running smart contracts where a function in one contract fails if it calls a function of another contract
  • This problem is fixed by adding the following lines to the chain.json file to enable byzantium mode in the EVM:

 "eip140Transition": 0,
 "eip211Transition": 0,
 "eip214Transition": 0,
 "eip658Transition": 0

• The problem is reported in https://github.com/paritytech/parity/issues/8503 and https://github.com/ethereum/solidity/issues/3969

The ocean test net

The private test net is running on Azure VM ocn-hackaton with ip address 40.115.16.244

To connect to the network, provide the ip address and use port 8545

To deploy keeper-contracts, use the following in your truffle.js file:

ocean_poa_net: {
    host: 'http://40.115.16.244',
    port: 8545,
    network_id: '*',
    gas: 6000000,
    from: "0x00bd138abd70e2f00903268f3db08f2d25677c9e"
},