add docker configuration

.dockerignore

@@ -0,0 +1,32 @@
+# Include any files or directories that you don't want to be copied to your
+# container here (e.g., local build artifacts, temporary files, etc.).
+#
+# For more help, visit the .dockerignore file reference guide at
+# https://docs.docker.com/engine/reference/builder/#dockerignore-file
+
+**/.DS_Store
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/charts
+**/docker-compose*
+**/compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/secrets.dev.yaml
+**/values.dev.yaml
+/bin
+/target
+LICENSE
+README.md

Dockerfile

@@ -0,0 +1,64 @@
+# syntax=docker/dockerfile:1
+
+
+################################################################################
+# Create a stage for building the application.
+
+ARG RUST_VERSION=1.79.0
+ARG APP_NAME=mensa-upb-api
+FROM rust:${RUST_VERSION}-slim-bullseye AS build
+ARG APP_NAME
+WORKDIR /app
+
+RUN apt-get update -y && \
+    apt-get install -y pkg-config make g++ libssl-dev
+
+# Build the application.
+# Leverage a cache mount to /usr/local/cargo/registry/
+# for downloaded dependencies and a cache mount to /app/target/ for 
+# compiled dependencies which will speed up subsequent builds.
+# Leverage a bind mount to the src directory to avoid having to copy the
+# source code into the container. Once built, copy the executable to an
+# output directory before the cache mounted /app/target is unmounted.
+RUN --mount=type=bind,source=src,target=src \
+    --mount=type=bind,source=Cargo.toml,target=Cargo.toml \
+    --mount=type=bind,source=Cargo.lock,target=Cargo.lock \
+    --mount=type=cache,target=/app/target/ \
+    --mount=type=cache,target=/usr/local/cargo/registry/ \
+    <<EOF
+set -e
+cargo build --locked --release
+cp ./target/release/$APP_NAME /bin/server
+EOF
+
+################################################################################
+# Create a new stage for running the application that contains the minimal
+# runtime dependencies for the application. This often uses a different base
+# image from the build stage where the necessary files are copied from the build
+# stage.
+FROM debian:bullseye-slim AS final
+
+# Create a non-privileged user that the app will run under.
+# See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user
+ARG UID=10001
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    appuser
+USER appuser
+
+# Copy the executable from the "build" stage.
+COPY --from=build /bin/server /bin/
+
+# Set the environment variable to listen on all interfaces.
+ENV API_INTERFACE=0.0.0.0
+
+# Expose the port that the application listens on.
+EXPOSE 8080
+
+# What the container should run when it is started.
+CMD ["/bin/server"]

compose.yaml

@@ -0,0 +1,9 @@
+services:
+  server:
+    build:
+      context: .
+      target: final
+    ports:
+      - 8080:8080
+
+

src/main.rs

@@ -49,6 +49,8 @@ async fn main() -> io::Result<()> {
 
     let menu_cache = MenuCache::default();
 
+    println!("Starting server on {}:{}", interface, port);
+
     HttpServer::new(move || {
         let cors = allowed_cors
             .iter()