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electrs image

Build the default electrs image with

docker build -t electrs:0.9.9 .

Available build-arg:

  • VRS: electrs version to install, default v0.9.9

Create a container with exposed ports for RPC connections (you need a bitcoind container created to link with)

docker create -p 60401:60401\
    --env DAEMON_RPC_ADDR=bitcoind:18443\
    --env DAEMON_P2P_ADDR=bitcoind:18444\
    --env ELECTRUM_RPC_PORT=60401\
    --env NETWORK=regtest\
    --name electrs\
    --volumes-from bitcoind\
    --link bitcoind\
    electrs:0.9.9

The bitcoin datadir is expected to be in the /data volume and can be accessed by addtionally passing for example -v /path/to/host/folder:data to docker create or --volumes-from bitcoind. Additionally, to access bitcoind's rpc running in another container, pass in a --link <container> argument with the name of the bitcoind container.

Available environment variables:

  • NETWORK: a flag intended for the network, bitcoin, testnet, regtest or signet
  • DAEMON_RPC_ADDR: the listening RPC address as [host]:[port] of bitcoind, usually 8332, 18332, or 18443
  • DAEMON_P2P_ADDR: the listening P2P address as [host]:[port] of bitcoind, usually 8333, 18333, or 18444
  • ELECTRUM_RPC_PORT: electrs listening RPC port, default ports are 50001, 60001, and 60401

Available listening container ports:

  • electrum rpc: the port the electrs server is listening on, the argument chosen in ELECTRUM_RPC_PORT

electrum_rpc_addr is generated with 0.0.0.0 and the chosen electrum port ELECTRUM_RPC_PORT, you probably want to expose the chosen port outside the container with -p [hostPort]:[containerPort].

GitHub Action usage

services:
  bitcoind:
    image: ghcr.io/unstoppableswap/containers/bitcoin-core:23.0
    env:
      NETWORK: regtest
    volumes:
      - bitcoind-data:/data
  electrs:
    image: ghcr.io/unstoppableswap/containers/electrs:0.9.9
    env:
      NETWORK: regtest
      DAEMON_RPC_ADDR: bitcoind:18443
      DAEMON_P2P_ADDR: bitcoind:18444
      ELECTRUM_RPC_PORT: 60401
    volumes:
      - bitcoind-data:/data

Standalone usage with containers/bitcoin-core image

docker pull ghcr.io/unstoppableswap/containers/bitcoin-core:23.0
docker pull ghcr.io/unstoppableswap/containers/electrs:0.9.9
docker volume create --name bitcoind-data

docker create -p 18443:18443 -p 18444:18444\
    --name bitcoind\
    --env NETWORK=regtest\
    -v bitcoind-data:/data\
    ghcr.io/unstoppableswap/containers/bitcoin-core:23.0

docker create -p 60401:60401\
    --name electrs\
    --env DAEMON_RPC_ADDR=bitcoind:18443\
    --env DAEMON_P2P_ADDR=bitcoind:18444\
    --env ELECTRUM_RPC_PORT=60401\
    --env NETWORK=regtest\
    --volumes-from bitcoind\
    --link bitcoind\
    ghcr.io/unstoppableswap/containers/electrs:0.9.9

docker start bitcoind
docker start electrs

docker kill bitcoind electrs
docker container rm bitcoind electrs
docker volume rm bitcoind-data