FROM ubuntu@sha256:7cc0576c7c0ec2384de5cbf245f41567e922aab1b075f3e8ad565f508032df17 as build

ARG GO_VER=1.17.4
ARG GEN_GO_VER=1.27.1
ARG GEN_GO_GRPC_VER=1.1
ARG PB_VER=3.17.3

ENV DEBIAN_FRONTEND="noninteractive"
RUN apt-get update && apt-get install -y wget tar unzip

# Install Go
RUN wget https://go.dev/dl/go${GO_VER}.linux-amd64.tar.gz && \
    tar -C /usr/local -xzf go${GO_VER}.linux-amd64.tar.gz && rm go${GO_VER}.linux-amd64.tar.gz
ENV PATH ${PATH}:/usr/local/go/bin:/root/go/bin


RUN wget https://github.com/protocolbuffers/protobuf/releases/download/v${PB_VER}/protoc-${PB_VER}-linux-x86_64.zip && \
    unzip protoc-${PB_VER}-linux-x86_64.zip -d /root/.local && \
    cp /root/.local/bin/protoc /usr/local/bin/protoc
ENV PATH="$PATH:/root/.local/bin"

RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v${GEN_GO_VER} && \
    go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v${GEN_GO_GRPC_VER}

# Generate code for every existing proto file
WORKDIR /pubapi
COPY pubapi/pubproto/*.proto /pubapi
RUN protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative *.proto
WORKDIR /vpnapi
COPY vpnapi/vpnproto/*.proto /vpnapi
RUN protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative *.proto

FROM scratch as export
COPY --from=build /pubapi/*.go pubapi/pubproto/
COPY --from=build /vpnapi/*.go vpnapi/vpnproto/