feat: restructure docker images, add sparkl2 docker image (#3794)

docker/boltzclient/Dockerfile

@@ -0,0 +1,34 @@
+ARG LNBITS_TAG=latest
+
+FROM boltz/boltz-client:latest AS boltz
+FROM lnbits/lnbits:${LNBITS_TAG}
+
+COPY --from=boltz /bin/boltzd /bin/boltzcli /usr/local/bin/
+RUN ls -l /usr/local/bin/boltzd
+RUN apt-get update && apt-get -y upgrade && \
+    apt-get install -y netcat-openbsd
+
+RUN curl -LsSf https://astral.sh/uv/install.sh | sh
+ENV PATH="/root/.local/bin:$PATH"
+
+# Reinstall dependencies just in case (needed for CMD usage)
+RUN uv sync --all-extras
+
+# LNbits
+ENV LNBITS_PORT="5000"
+ENV LNBITS_HOST="0.0.0.0"
+ENV LNBITS_BACKEND_WALLET_CLASS="BoltzWallet"
+ENV FUNDING_SOURCE_MAX_RETRIES=10
+
+# Boltzd
+ENV BOLTZ_CLIENT_ENDPOINT="127.0.0.1:9002"
+ENV BOLTZ_CLIENT_MACAROON="/root/.boltz/macaroons/admin.macaroon"
+ENV BOLTZ_CLIENT_CERT="/root/.boltz/tls.cert"
+ENV BOLTZ_CLIENT_WALLET="lnbits"
+
+EXPOSE 5000
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+CMD ["/entrypoint.sh"]

docker/boltzclient/entrypoint.sh

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+#!/bin/bash
+set -e
+
+boltzd --standalone --referralId lnbits &
+
+# Capture boltzd PID to monitor if needed
+BOLTZ_PID=$!
+
+# Wait for boltzd to start
+for i in {1..10}; do
+  if nc -z localhost 9002; then
+    echo "boltzd is up!"
+    break
+  fi
+  echo "Waiting for boltzd to start..."
+  sleep 1
+done
+
+# Optional: check if still not up
+if ! nc -z localhost 9002; then
+  echo "boltzd did not start successfully."
+  exit 1
+fi
+
+echo "Starting LNbits on $LNBITS_HOST:$LNBITS_PORT..."
+exec uv run lnbits --port "$LNBITS_PORT" --host "$LNBITS_HOST" --forwarded-allow-ips='*'