################
##### Builder
FROM alpine:3.19.1 AS builder
RUN apk update && apk upgrade && apk add binutils build-base ca-certificates curl file g++ gcc make patch fuse3
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
RUN . ~/.cargo/env && rustup target add x86_64-unknown-linux-musl
RUN . ~/.cargo/env && rustup default nightly && rustup update
# Cache downloaded+built dependencies
#COPY Cargo.toml Cargo.lock /usr/src/rencfs/
#RUN mkdir /usr/src/rencfs/src && \
# echo 'fn main() {}' > /usr/src/rencfs/src/main.rs
#
#RUN . ~/.cargo/env && cd /usr/src/rencfs/ && cargo build --release && \
# rm -Rvf /usr/src/rencfs/src
# Build our actual code
#COPY Cargo.toml Cargo.lock /usr/src/rencfs/
#COPY src /usr/src/rencfs
COPY . /usr/src/rencfs
#COPY examples /usr/src/rencfs/examples
RUN . ~/.cargo/env && \
cd /usr/src/rencfs/ && \
cargo build --target x86_64-unknown-linux-musl --release
#Copy the fusermount3 binary and libraries into a directory
RUN mkdir /fusermount3dep && \
cp $(which fusermount3) /fusermount3dep/ && \
ldd $(which fusermount3) | awk '{ print $3 }' | xargs -I {} cp {} /fusermount3dep/
################
##### Runtime
FROM scratch AS runtime
# Copy fusermount3
COPY --from=builder /fusermount3dep/fusermount3 /usr/bin/
# Copy busybox
COPY --from=builder /bin/ /bin/
# Copy ld-musl (fusermount3 & busybox dep)
COPY --from=builder /fusermount3dep/ld* /lib/
# Copy application binary from builder image
COPY --from=builder /usr/src/rencfs/target/x86_64-unknown-linux-musl/release/rencfs /usr/bin/
# Run the application
CMD ["rencfs", "--help"]