add Dockerfile for building with configurable features

Implements multi-stage build to produce a small
final image by discarding build dependencies.
Supports optional BUILD_FEATURES for additional
features, with cached compilation in builder stage.

Author: moisesPompilio

.dockerignore

@@ -0,0 +1 @@
+/target

Dockerfile

@@ -0,0 +1,27 @@
+FROM rust:1.91.1-slim@sha256:cef0ec962e08d8b5dcba05604189e5751c1bd3ec7d12db0a93e4215468d4ac4a AS builder
+
+ARG BUILD_FEATURES=""
+
+WORKDIR /opt/app
+
+COPY Cargo.* ./
+COPY ldk-server/ ldk-server/
+COPY ldk-server-cli/ ldk-server-cli/
+COPY ldk-server-client/ ldk-server-client/
+COPY ldk-server-protos/ ldk-server-protos/
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    if [ -n "$BUILD_FEATURES" ]; then \
+      cargo build --release --features "$BUILD_FEATURES"; \
+    else \
+      cargo build --release; \
+    fi
+
+FROM debian:13.1-slim@sha256:1caf1c703c8f7e15dcf2e7769b35000c764e6f50e4d7401c355fb0248f3ddfdb
+
+COPY --from=builder /opt/app/target/release/ldk-server /usr/local/bin/ldk-server
+COPY --from=builder /opt/app/target/release/ldk-server-cli /usr/local/bin/ldk-server-cli
+COPY --from=builder  /opt/app/ldk-server/ldk-server-config.toml /usr/local/bin/ldk-server-config.toml
+
+EXPOSE 3000 3001
+
+ENTRYPOINT [ "ldk-server", "/usr/local/bin/ldk-server-config.toml" ]

ldk-server/ldk-server-config.toml

@@ -2,7 +2,7 @@
 [node]
 network = "regtest"                           # Bitcoin network to use
 listening_address = "localhost:3001"          # Lightning node listening address
-rest_service_address = "127.0.0.1:3002"       # LDK Server REST address
+rest_service_address = "127.0.0.1:3000"       # LDK Server REST address
 
 # Storage settings
 [storage.disk]