Basic Local Chainlink Node

Warning: This is for local development only. Do not use in production.

What is this?

A self encapsulated environment to run integration tests and develop locally.

It is built using docker-compose using the 0.10.3 chainlink image and the latest postgres image. This does not include a geth container and currently exists to connect to an already running local chain(ganache or hardhat).

How to use

• Launch local chain (such as npx hardhat node)
• Deploy LINK token contract and any other related contracts
• Fund contract with LINK
• Set environment variables in .env such as postgres credentials, LINK_CONTRACT_ADDRESS, and ETH_CHAIN_ID (to match your chain)
• Set username/password in chainlink/.api
• Set keystore password in chainlink/.password
• In docker-compose.yml set your port for ETH_URL (this setup allows for reaching localhost outside of the container aka the host itself. If using linux in your .bashrc in .bash_profile or .zshrc add export DOCKER_GATEWAY_HOST=172.17.0.1 hattip: https://dev.to/natterstefan/docker-tip-how-to-get-host-s-ip-address-inside-a-docker-container-5anh). If not using local eth node instead use external API from Infura or elsewhere.
• Transfer ETH to Chainlink Node
• In order to test External Adapters/External Bridges appropriately running on your local machine instead of using http://localhost:8080 for example replace localhost with host.docker.internal such as http://host.docker.internal:8080 if running geth. It appears that hardhat isn't supported as the rpc doesnt line up to what Chainlink expects.