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Ethereum Testnet Node

All the files you need to setup a node on our Ethereum Testnet. Based on: https://github.com/Capgemini-AIE/ethereum-docker

Prerequisites:

Make sure your the host machine has docker & docker-compose installed.

How to start a node:

# Clone the project:
git clone https://github.com/cuvialabs/testnet.git

# Navigate to the docker-compose file:
cd ./testnet/ethereum-docker/external

# Start the node:
docker-compose up -d

Visit netstats at ${BOOTSTRAP_IP}:3000 (http://23.24.168.98:3000/) for verification (your nodes should be listed prefixed by "GUEST_").

How to stop a node:

# Navigate to the docker-compose file (same as above):
cd ./testnet/ethereum-docker/external

# Stop the node:
docker-compose stop

How to execute commands on individual nodes in the geth console:

# Run the command bleow. Replace "1" with the node number that you want to look at.
docker exec -it external_geth_1 geth attach ipc://root/.ethereum/devchain/geth.ipc

Caveats:

  1. The bootstrap IP and node name is currently hardcoded in ./ethereum-docker/external/start.sh (lines 4 & 5)
  2. Currently all external nodes start idle on launch. To start mining, follow the instructions in "How to execute commands on individual nodes in the geth console" to open a console and run "miner.start()".
  3. Miners need to create the DAG before mining starts. This could take a while. If you want a pre-generated DAG, let me know.
  4. The coinbase account is defaulted to account #0 (0x007ccffb7916f37f7aeef05e8096ecfbe55afc2f) for all nodes. That means all nodes will be mining for the same account at the start. This can be changed in the console.