Docker build fails with: `version "v2.0.0" invalid: should be v0 or v1, not v2`

[leomeinel]

Describe the bug

Custom build using ANSWER_MODULE failing with: replace github.com/apache/answer: version "v2.0.0" invalid: should be v0 or v1, not v2

To Reproduce

Steps to reproduce the behavior:

1. Specify ARG ANSWER_MODULE=github.com/apache/answer@v2.0.0 and build apache answer
2. See build fail with error

Expected behavior

A working build.

CI/CD log

#15 43.92 go: downloading github.com/apache/answer-plugins/reviewer-basic v1.0.8
#15 44.20 go: added github.com/apache/answer-plugins/reviewer-basic v1.0.8
#15 44.21 [go mod edit -replace github.com/apache/answer=github.com/apache/answer@v2.0.0]
#15 44.23 [go mod tidy]
#15 44.24 go: errors parsing go.mod:
#15 44.24 go.mod:73: replace github.com/apache/answer: version "v2.0.0" invalid: should be v0 or v1, not v2
#15 44.24 build failed exit status 1
#15 ERROR: process "/bin/bash -c /scripts/build.sh" did not complete successfully: exit code: 1

Dockerfile

# Initialize /usr/bin/answer
# INFO: Replace version
FROM docker.io/apache/answer:2.0.0 AS answer-builder
# INFO: Replace version
FROM code.forgejo.org/oci/golang:1.26-alpine3.23 AS golang-builder
COPY --from=answer-builder /usr/bin/answer /usr/bin/answer

# Set build time variables
# INFO: Replace version
ARG PNPM_VERSION=10.32.1
ARG ANSWER_MODULE=github.com/apache/answer@v2.0.0

# Install dependencies
RUN apk --no-cache add \
    build-base git bash nodejs npm go && \
    npm install -g pnpm@${PNPM_VERSION}

# Build /usr/bin/new_answer
COPY scripts/ /scripts
RUN chmod 755 /scripts/*.sh
RUN ["/bin/bash","-c","/scripts/build.sh"]

# Defaults from https://github.com/apache/answer/blob/main/Dockerfile
# INFO: Replace version
FROM code.forgejo.org/oci/alpine:latest
LABEL maintainer="linkinstar@apache.org"

ARG TIMEZONE
ENV TIMEZONE=${TIMEZONE:-"Asia/Shanghai"}

RUN apk update \
    && apk --no-cache add \
        bash \
        ca-certificates \
        curl \
        dumb-init \
        gettext \
        openssh \
        sqlite \
        gnupg \
        tzdata \
    && ln -sf /usr/share/zoneinfo/${TIMEZONE} /etc/localtime \
    && echo "${TIMEZONE}" > /etc/timezone

# Defaults from https://answer.apache.org/docs/plugins/#build-with-plugin-from-answer-base-image
COPY --from=golang-builder /usr/bin/new_answer /usr/bin/answer
COPY --from=answer-builder /data /data
COPY --from=answer-builder /entrypoint.sh /entrypoint.sh
RUN chmod 755 /entrypoint.sh

VOLUME /data
ENTRYPOINT ["/entrypoint.sh"]

Problem

As far as I understand, go requires a /v2 suffix after a major version bump. Also see this.

If you want met to submit a PR, please let me know, but I think this is better handled by maintainers. Also my understanding of go is limited so this problem description might not be 100% accurate.

Platform

• Device: n.a
• OS: n.a
• Browser and version: n.a
• Version: v2.0.0

[LinkinStars]

If you have already set FROM docker.io/apache/answer:2.0.0 AS answer-builder, then you don't actually need to set ARG ANSWER_MODULE=github.com/apache/answer@v2.0.0 since you're already building on top of version 2.0.0. That said, I’ll continue to follow up on this issue to see how it should be handled.