Converted project to Rust

Dockerfile

@@ -1,17 +1,19 @@
-FROM golang:latest AS builder
+FROM rust:alpine AS builder
+RUN apk add --no-cache musl-dev
 WORKDIR /app
-COPY code/go.mod code/go.sum ./
-RUN go mod download
-COPY code/main.go .
-RUN CGO_ENABLED=0 GOOS=linux go build -o server main.go
+COPY code/Cargo.toml ./
+RUN mkdir src && echo "fn main() {}" > src/main.rs && cargo build --release && rm -rf src
+COPY code/src ./src
+RUN cargo build --release
 
 FROM alpine:latest
 RUN apk add --no-cache \
     gnucobol \
     gcc \
-    musl-dev
+    musl-dev \
+    libgcc
 COPY api.yaml /api.yaml
 COPY src/ /src/
-COPY --from=builder /app/server /server
+COPY --from=builder /app/target/release/rest-cobol /server
 EXPOSE 8080
 ENTRYPOINT ["/server"]