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I'm setting up a local-testnet with multiple nodes and would like to know if there is a way to premine DOT without using the UI Here is a copy of my docker-compose from following the steps on https://github.com/paritytech/polkadot

version: '2'

services:
  polkadot:
    container_name: polkadot
    image: parity/polkadot
    # volumes:
    #   - /my/local/folder:/polkadot
    command: [
      # "--name", "PolkaDocker",
      # "--ws-external",
      # "--rpc-external", #must need
      # "--rpc-cors", "all"
      "--chain=polkadot-local",
      "--alice", "-d", "/tmp/alice",
      "--node-key", "0000000000000000000000000000000000000000000000000000000000000002"
    ]
    networks:
      polkadotnw:
        ipv4_address: 10.0.0.10
  polkadot2:
    container_name: polkadot2
    image: parity/polkadot
    # volumes:
    #   - /my/local/folder:/polkadot
    command: [
      # "--name", "PolkaDocker",
      # "--ws-external",
      # "--rpc-external",
      # "--rpc-cors", "all"
      "--chain=polkadot-local", 
      "--bob", "-d", "/tmp/bob", 
      "--bootnodes", "/ip4/127.0.0.1/tcp/30333/p2p/12D3KooWHdiAxVd8uMQR1hGWXccidmfCwLqcMpGwR6QcTP6QRMuD"
    ]
    networks:
      polkadotnw:
        ipv4_address: 10.0.0.20
    depends_on:
      - polkadot


networks:
  polkadotnw:
    driver: bridge
    ipam:
      config:
        - subnet: 10.0.0.0/24
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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
    – Community Bot
    Commented Jan 25, 2023 at 21:32
  • if you want to author and finalise blocks on the local testnet of a Substrate-based chain like Polkadot then you need at least three validators, not just two. so add a third Docker container called polkadot3 and use "well known" pre-funded account --charlie
    – Luke Schoen
    Commented Jan 25, 2023 at 21:40

1 Answer 1

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You can change the chain-spec of you local test net here. The endowed accounts are accounts with a pre-mined balance.
There is an example of how to put in an AccountID in the Westend chain-spec.

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