Dockerfile

# we build with go and rust
FROM golang:1.19.3-alpine3.16

ENV RUSTUP_HOME=/usr/local/rustup \
    CARGO_HOME=/usr/local/cargo \
    PATH=/usr/local/cargo/bin:$PATH

# this comes from standard alpine nightly file
#  https://github.com/rust-lang/docker-rust-nightly/blob/master/alpine3.12/Dockerfile
# with some changes to support our toolchain, etc
RUN set -eux; \
    apk add --no-cache \
    ca-certificates \
    build-base;

RUN wget "https://static.rust-lang.org/rustup/dist/x86_64-unknown-linux-musl/rustup-init"
RUN chmod +x rustup-init
RUN ./rustup-init -y --no-modify-path --default-toolchain nightly-2022-02-23; rm rustup-init
RUN chmod -R a+w $RUSTUP_HOME $CARGO_HOME

# needed for
# /usr/lib/gcc/x86_64-alpine-linux-musl/9.3.0/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find crti.o: No such file or directory
ENV LIBRARY_PATH=/usr/local/rustup/toolchains/nightly-2022-02-23-x86_64-unknown-linux-musl/lib/rustlib/x86_64-unknown-linux-musl/lib:$LIBRARY_PATH

# prepare go cache dirs
RUN mkdir -p /.cache/go-build
RUN chmod -R 777 /.cache


## PRE-FETCH MANY DEPS
#WORKDIR /scratch
#COPY Cargo.toml /scratch/
#COPY Cargo.lock /scratch/
#COPY src /scratch/src
#RUN cargo fetch
## allow non-root user to download more deps later
#RUN chmod -R 777 /usr/local/cargo

## COPY BUILD SCRIPTS
WORKDIR /code/code/
# RUN rm -rf /scratch

COPY build/build_muslc.sh /opt
RUN chmod +x /opt/build*

RUN mkdir /.cargo
RUN chmod +rx /.cargo
COPY build/cargo-config /.cargo/config

CMD ["/opt/build_muslc.sh"]