chore(docker): add Dockerfile

.dockerignore

@@ -0,0 +1,10 @@
+# Directories
+/.git/
+/.github/
+/target/
+/upload/
+
+# Files
+.gitignore
+*.md
+LICENSE

Dockerfile

@@ -0,0 +1,21 @@
+FROM ekidd/rust-musl-builder:latest as builder
+WORKDIR /home/rust/src
+COPY Cargo.toml Cargo.toml
+RUN mkdir -p src/
+RUN echo "fn main() {println!(\"failed to build\")}" > src/main.rs
+RUN cargo build --release
+RUN rm -f target/release/deps/rustypaste*
+COPY . .
+RUN cargo build --locked --release
+RUN mkdir -p build-out/
+RUN cp target/x86_64-unknown-linux-musl/release/rustypaste build-out/
+
+FROM scratch
+WORKDIR /app
+COPY --from=builder \
+    /home/rust/src/build-out/rustypaste \
+    /home/rust/src/config.toml ./
+ENV SERVER__ADDRESS=0.0.0.0:8000
+EXPOSE 8000
+USER 1000:1000
+CMD ["./rustypaste"]