Dockerfile

# This Dockerfile produces an image that runs the protocol compiler
# to generate Go declarations for messages and Twirp RPC interfaces.
#
# For build reproducibility, it is explicit about the versions of its
# dependencies, which include:
# - the golang base docker image (linux, go, git),
# - protoc,
# - Go packages (protoc-gen-go and protoc-gen-twirp),
# - apt packages (unzip).

FROM golang:1.19.1

WORKDIR /work

RUN apt-get update && \
    apt-get install -y unzip=6.0-26+deb11u1 && \
    curl --location --silent -o protoc.zip https://github.com/protocolbuffers/protobuf/releases/download/v3.19.4/protoc-3.19.4-linux-x86_64.zip && \
    unzip protoc.zip -d /usr/local/ && \
    rm -fr protoc.zip

RUN curl --location --silent -o dart.deb https://storage.googleapis.com/dart-archive/channels/stable/release/3.2.4/linux_packages/dart_3.2.4-1_amd64.deb && \
    dpkg -i dart.deb && \
    rm -fr dart.deb && \
    echo 'export PATH="$PATH:/usr/lib/dart/bin"' >> ~/.profile && \
    dart pub global activate protoc_plugin


RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1 && \
        go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2

ENV PATH="/root/.pub-cache/bin:${PATH}"

ENTRYPOINT ["protoc"]