initial commit

Dockerfile

@@ -0,0 +1,31 @@
+FROM rust:latest as builder
+
+# Make a fake Rust app to keep a cached layer of compiled crates
+RUN USER=root cargo new app
+WORKDIR /usr/src/app
+COPY Cargo.toml ./
+# Needs at least a main.rs file with a main function
+RUN mkdir src && echo "fn main(){}" > src/main.rs
+# Will build all dependent crates in release mode
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+  --mount=type=cache,target=/usr/src/app/target \
+  cargo build --release
+
+# Copy the rest
+COPY . .
+# Build (install) the actual binaries
+RUN cargo install --path .
+
+# Runtime image
+FROM debian:bullseye-slim
+
+# Run as "app" user
+RUN useradd -ms /bin/bash app
+
+USER app
+WORKDIR /app
+
+# Get compiled binaries from builder's cargo install directory
+COPY --from=builder /usr/local/cargo/bin/cratw /app/cratw
+
+# No CMD or ENTRYPOINT, see fly.toml with `cmd` override.