build: updated Dockerfile

Signed-off-by: skoowu <skoowu.fancy@gmail.com>

Author: skoowoo

Dockerfile

@@ -1,32 +1,25 @@
 FROM rust:1.67.1-slim-buster as build
 
-# create a new empty shell project
 RUN USER=root cargo new --bin medup
 WORKDIR /medup
 
-# copy over your manifests
 COPY ./Cargo.lock ./Cargo.lock
 COPY ./Cargo.toml ./Cargo.toml
 
-# this build step will cache your dependencies
 RUN cargo build --release && rm -r ./src
 
-# copy your source tree
 COPY ./src ./src
 COPY ./docs ./docs
 COPY ./themes ./themes
 
-# build for release
 RUN rm ./target/release/deps/medup* && cargo build --release
 
-# our final base
 FROM rust:1.67.1-slim-buster
 
-# copy the build artifact from the build stage
 COPY --from=build /medup/target/release/medup ./medup/
 COPY --from=build /medup/docs ./medup/docs/
 COPY --from=build /medup/themes ./medup/themes/
 
-# set the startup command to run your binary
+EXPOSE 8181
 ENTRYPOINT [ "/medup/medup" ]
 CMD ["serve", "--config-path", "/medup/themes/notion/config.json", "--dir", "/medup/docs", "--static-dir", "/medup/themes"]