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Chainlink Operator Node

Pre-requisites​

Assuming debian-based system.

  • Docker:
  • Docker compose (tested on v1):
    sudo apt install python3 python3-pip
    pip install docker-compose

Node setup​

  • Clone this directory and cd into it.
  • Create env files:
    • postgres.env:
      POSTGRES_PASSWORD=password
      POSTGRES_DB=chainlink
    • chainlink.env (make sure to replace ETH_CHAIN_ID and ETH_URL accordingly. Note ETH_URL needs to be websocket.):
      ROOT=/chainlink
      LOG_LEVEL=debug
      ETH_CHAIN_ID=80001
      CHAINLINK_TLS_PORT=0
      SECURE_COOKIES=false
      ALLOW_ORIGINS=*
      ETH_URL=<<<REPLACE_THIS>>>
      DATABASE_URL=postgresql://postgres:password@postgres:5432/chainlink?sslmode=disable
      MIN_OUTGOING_CONFIRMATIONS=1
      ETH_FINALITY_DEPTH=1
  • One time setup:
    mkdir -p chainlink_data
    # api user email
    echo "admin@store.shiro.network" > chainlink_data/.api
    # api password
    echo "ShareAllTheThings" >> chainlink_data/.api
    # node wallet password
    echo "ShareAllTheThings" > chainlink_data/.password
    chown -R 14933:14933 chainlink_data
    docker-compose build
  • Run services:
    docker-compose up -d
  • Check health:
    docker-compose ps
  • Use ssh tunneling to access UI. For example, on GCP:
    gcloud compute ssh $INSTANCE_NAME -- -L 6688:localhost:6688
  • Use API username/password from above one time setup commands to login on http://localhost:6688/.

Fulfilling requests​

Follow the docs with some important changes:

  • Use Operator.sol instead of Oracle.sol
    • Use setAuthorizedSenders to authorize the node's address
    • Use the deployed address of this contract in place of Oracle address everywhere - especially contractAddress in the job spec.
  • Add a new job using the jobspec.toml - change things as needed.