Merge pull request #121 from synonymdev/test/setup-external-channel-helper-script

setup external channel helper script

Author: piotr-iohk

scripts/setup-external.sh

@@ -0,0 +1,93 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+COMPOSE_FILE="$ROOT/docker/docker-compose.yml"
+HOST="${EXTERNAL_HOST:-0.0.0.0}"
+PORT="${EXTERNAL_PORT:-9735}"
+NETWORK="${LND_NETWORK:-regtest}"
+LND_DIR="${LND_DIR:-/home/lnd/.lnd}"
+TLS_CERT_PATH="${TLS_CERT_PATH:-$LND_DIR/tls.cert}"
+MACAROON_PATH="${MACAROON_PATH:-$LND_DIR/data/chain/bitcoin/$NETWORK/admin.macaroon}"
+FUND_BTC="${FUND_BTC:-1}"
+
+if ! command -v docker >/dev/null 2>&1; then
+  echo "ERROR: docker is not installed or not in PATH" >&2
+  exit 1
+fi
+
+echo "Starting lnd (and required services if missing)..."
+docker compose -f "$COMPOSE_FILE" up -d bitcoind bitcoinsetup darkhttpd lnd >/dev/null
+
+echo "Waiting for lnd to become ready..."
+lnd_info=""
+for _ in $(seq 1 90); do
+  set +e
+  lnd_info="$(
+    docker compose -f "$COMPOSE_FILE" exec -T lnd \
+      lncli \
+      --network="$NETWORK" \
+      --lnddir="$LND_DIR" \
+      --tlscertpath="$TLS_CERT_PATH" \
+      --macaroonpath="$MACAROON_PATH" \
+      getinfo 2>/dev/null
+  )"
+  status=$?
+  set -e
+  if [[ $status -eq 0 && -n "$lnd_info" ]]; then
+    break
+  fi
+  sleep 1
+done
+
+if [[ -z "$lnd_info" ]]; then
+  echo "ERROR: lnd did not become ready in time." >&2
+  exit 1
+fi
+
+LND_NODE_ID="$(python3 -c 'import json,sys; print(json.loads(sys.stdin.read()).get("identity_pubkey",""))' <<<"$lnd_info")"
+if [[ -z "$LND_NODE_ID" ]]; then
+  echo "ERROR: Could not read lnd identity_pubkey." >&2
+  exit 1
+fi
+
+echo "Funding LND wallet with ${FUND_BTC} BTC and mining 1 block..."
+lnd_addr_json="$(
+  docker compose -f "$COMPOSE_FILE" exec -T lnd \
+    lncli \
+    --network="$NETWORK" \
+    --lnddir="$LND_DIR" \
+    --tlscertpath="$TLS_CERT_PATH" \
+    --macaroonpath="$MACAROON_PATH" \
+    newaddress p2wkh
+)"
+LND_ADDRESS="$(python3 -c 'import json,sys; print(json.loads(sys.stdin.read()).get("address",""))' <<<"$lnd_addr_json")"
+if [[ -z "$LND_ADDRESS" ]]; then
+  echo "ERROR: Could not get LND on-chain address." >&2
+  exit 1
+fi
+
+docker compose -f "$COMPOSE_FILE" exec -T bitcoind \
+  bitcoin-cli -regtest -rpcconnect=127.0.0.1 -rpcport=43782 -rpcuser=polaruser -rpcpassword=polarpass \
+  sendtoaddress "$LND_ADDRESS" "$FUND_BTC" >/dev/null
+
+MINER_ADDRESS="$(
+  docker compose -f "$COMPOSE_FILE" exec -T bitcoind \
+    bitcoin-cli -regtest -rpcconnect=127.0.0.1 -rpcport=43782 -rpcuser=polaruser -rpcpassword=polarpass \
+    getnewaddress
+)"
+docker compose -f "$COMPOSE_FILE" exec -T bitcoind \
+  bitcoin-cli -regtest -rpcconnect=127.0.0.1 -rpcport=43782 -rpcuser=polaruser -rpcpassword=polarpass \
+  generatetoaddress 1 "$MINER_ADDRESS" >/dev/null
+
+echo
+echo "External channel connection data:"
+echo "id:   $LND_NODE_ID"
+echo "host: $HOST"
+echo "port: $PORT"
+echo "uri:  ${LND_NODE_ID}@${HOST}:${PORT}"
+echo
+echo "Manual app flow:"
+echo "Settings -> Advanced -> Channels -> Add -> Manual"
+echo
+echo "lnd remains online after this script exits."