# Go stack overlay fragment.
#
# Layer this on top of huskies-project-base to produce a project container
# with Go 1.22, gopls (official Go language server), and standard tooling.
#
# Build the combined image:
#   (echo "FROM huskies-project-base"; \
#    cat docker/stacks/go/Dockerfile.fragment) | \
#   docker build -t huskies-project-go -
#
# Adding a new stack: create docker/stacks/<name>/Dockerfile.fragment and
# docker/stacks/<name>/markers — no changes to orchestration code required.

USER root

# Official Go binary distribution — Debian's golang-go package is too old for gopls.
# Update GOVERSION to pick up a newer release.
ENV GOVERSION="1.22.3"
RUN curl -fsSL "https://go.dev/dl/go${GOVERSION}.linux-amd64.tar.gz" \
        | tar -C /usr/local -xzf -

ENV PATH="/usr/local/go/bin:${PATH}"

# gopls: the official Go language server.
# GOBIN=/usr/local/bin puts the binary on the system PATH for all users.
RUN GOBIN=/usr/local/bin go install golang.org/x/tools/gopls@latest

USER huskies