Rewrite in Rust

Dockerfile

@@ -1,12 +1,25 @@
-FROM nginx:alpine
+###################
+### BUILD STAGE ###
+###################
+FROM rust:1.47 as build_stage
 
-EXPOSE 80
+# Install build dependencies
+RUN rustup target add x86_64-unknown-linux-musl
 
-ENV PROXY_PASS_HOST=http://example.com
+# Build project
+WORKDIR /app
+COPY . .
+RUN cargo build --release --target x86_64-unknown-linux-musl
+RUN strip target/x86_64-unknown-linux-musl/release/curl_sh
 
-COPY default.template /etc/nginx/conf.d/default.template
+########################
+### PRODUCTION STAGE ###
+########################
+FROM scratch
 
-COPY script.sh /usr/share/nginx/script.sh
+WORKDIR /
 
-CMD envsubst '$PROXY_PASS_HOST' < etc/nginx/conf.d/default.template > /etc/nginx/conf.d/default.conf && \
-    nginx -g 'daemon off;'
+# Copy application binary
+COPY --from=build_stage /app/target/x86_64-unknown-linux-musl/release/curl_sh curl_sh
+
+CMD ["/curl_sh"]