fix(docker): add missing dependency (#374)

also improve final image size and security

docker/DOCKER.md

@@ -13,10 +13,14 @@ The `compose.yml` file is configured as follows:
 ```yaml
 services:
   mostro:
-    build: .
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile
     volumes:
-      - ~/mostro:/config # settings.toml and mostro.db
+      - ./config:/config  # settings.toml and mostro.db
       - ~/.polar/networks/1/volumes/lnd:/lnd # LND data
+    platform: linux/amd64
+
 ```
 
 ## Building and Running the Docker Container

docker/Dockerfile

@@ -1,32 +1,37 @@
 # Build stage
-FROM rust:latest as builder
-
-# Install dependencies
-RUN apt-get update && \
-    apt-get install -y cmake build-essential libsqlite3-dev pkg-config libssl-dev
-
-# Clone repository
-RUN git clone https://github.com/MostroP2P/mostro.git /mostro
+FROM rust:1.81 AS builder
 
 # Set working directory
 WORKDIR /mostro
 
+# Copy source code
+COPY . .
+
+# Install build dependencies
+RUN apt-get update && \
+    apt-get install -y cmake build-essential libsqlite3-dev pkg-config libssl-dev protobuf-compiler
+
 # Build the project in release mode
 RUN cargo build --release
 
 # Production stage
-FROM rust:slim-bookworm
+FROM debian:bookworm-slim
 
-# Copy builded binary from build stage
+# Copy built binary from build stage
 COPY --from=builder /mostro/target/release/mostrod /usr/local/bin/mostrod
 
+WORKDIR /mostro
+
 # Copy settings and empty database
-COPY ./settings.docker.toml /mostro/settings.docker.toml
-COPY ./empty.mostro.db /mostro/empty.mostro.db
+COPY --chown=mostrouser:mostrouser ./docker/settings.docker.toml ./docker/empty.mostro.db ./
 
 # Copy start script
-COPY start.sh /mostro/start.sh
-RUN chmod +x /mostro/start.sh
+COPY --chown=mostrouser:mostrouser ./docker/start.sh ./start.sh
+RUN chmod +x ./start.sh
+
+# Add a non-root user and switch to it
+RUN useradd -m mostrouser
+USER mostrouser
 
 # Start mostro (copy settings and database if it's not created yet)
-CMD ["/mostro/start.sh"]
+ENTRYPOINT ["./start.sh"]

docker/compose.yml

@@ -1,6 +1,8 @@
 services:
   mostro:
-    build: .
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile
     volumes:
       - ./config:/config  # settings.toml and mostro.db
       - ~/.polar/networks/1/volumes/lnd:/lnd # LND data

docker/start.sh

@@ -13,4 +13,4 @@ if [ ! -f /config/mostro.db ]; then
 fi
 
 # Run application
-/usr/local/bin/mostrod -d /config
+/usr/local/bin/mostrod -d /config