corrects dockerfile to always use buildx and corrects binary not found errror.

Author: lmcdonough

Dockerfile

@@ -3,12 +3,14 @@
 # Stage 1: Build Rust app on platform-specific image
 FROM --platform=${BUILDPLATFORM} rust:bullseye AS builder
 
+# Install required build tools
 RUN apt-get update && apt-get install -y \
     build-essential bash pkg-config libssl-dev libpq-dev curl git \
     --no-install-recommends && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /usr/src/app
 
+# Copy workspace and packages
 COPY Cargo.toml Cargo.lock ./
 COPY ./entity/Cargo.toml ./entity/Cargo.toml
 COPY ./entity_api/Cargo.toml ./entity_api/Cargo.toml
@@ -17,25 +19,30 @@ COPY ./service/Cargo.toml ./service/Cargo.toml
 COPY ./web/Cargo.toml ./web/Cargo.toml
 COPY . .
 
+# Build release binaries for the current platform only
 RUN cargo build --release --workspace
 
-# Stage 2: Minimal runtime image using non-root user
+# Stage 2: Minimal runtime image
 FROM debian:bullseye-slim
 
+# Install Bash to support entrypoint.sh
 RUN apt-get update && apt-get install -y bash && rm -rf /var/lib/apt/lists/*
 
+# Create non-root user
 RUN useradd -m -s /bin/bash appuser
 WORKDIR /app
 
+# Copy only the necessary release binaries
 COPY --from=builder /usr/src/app/target/release/refactor_platform_rs .
 COPY --from=builder /usr/src/app/target/release/migration .
 COPY --from=builder /usr/src/app/target/release/seed_db .
 
+# Copy entrypoint script and make it executable
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh && chown -R appuser:appuser /app /entrypoint.sh
 
 USER appuser
 
 EXPOSE 8000
 
-ENTRYPOINT ["/entrypoint.sh"]
+ENTRYPOINT ["/entrypoint.sh"]