FROM alpine:3.14 as intermediate

RUN mkdir /src
WORKDIR /src

# Install the build tools
RUN apk add git go make

# Fetch the source
RUN git clone https://github.com/slackhq/nebula.git

# Compile the Linux binaries for all platforms
WORKDIR /src/nebula
RUN echo 'bin-linux: $(ALL_LINUX:%=build/%/nebula) $(ALL_LINUX:%=build/%/nebula-cert)' >> Makefile
RUN make bin-linux

# Start from a clean image
FROM alpine:3.14

RUN mkdir /app
WORKDIR /app

# Copy over the compiled binaries
COPY --from=intermediate /src/nebula/build ./

# Rename the directories from `go env` format to `uname` format
RUN mv linux-amd64 linux-x86_64

COPY docker-entrypoint.sh entrypoint.sh

EXPOSE 4242/udp
ENTRYPOINT [ "/bin/sh", "/app/entrypoint.sh" ]