Dockerfile.dynamic

# syntax=docker/dockerfile:1

FROM golangci/golangci-lint:v2.11.4-alpine AS lint

# Build
FROM docker.io/golang:1.26.2-trixie AS build

WORKDIR /app

COPY go.mod ./
COPY go.sum ./
RUN go mod download

COPY epub.go ./epub.go.bak
COPY epub.go ./epub.go

ENV DEBIAN_FRONTEND=noninteractive

RUN apt-get update \
  && apt-get install -y --no-install-recommends \
    libonig-dev=6.9.9-1+b1 \
    libxml2-dev=2.12.7+dfsg+really2.9.14-2.1+deb13u2 \
    pkgconf=1.8.1-4 \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/*

RUN go fmt && go vet && go fix \
  && diff ./epub.go.bak ./epub.go \
  && go build -trimpath -o epub-LinuxFr.org

RUN go install golang.org/x/vuln/cmd/govulncheck@v1.1.4 \
  && govulncheck -show verbose ./... \
  && govulncheck --mode=binary -show verbose epub-LinuxFr.org

# Lint
COPY --from=lint /usr/bin/golangci-lint "/go/bin/golangci-lint"
RUN golangci-lint run -v

# Deploy
FROM docker.io/debian:trixie
LABEL "org.opencontainers.image.source"="https://github.com/linuxfrorg/epub-LinuxFr.org"
LABEL "org.opencontainers.image.description"="Produce on the fly epub3 from a content on LinuxFr.org and its comments"
LABEL "org.opencontainers.image.licenses"="AGPL-3.0-only"

ENV DEBIAN_FRONTEND=noninteractive

RUN apt-get update \
  && apt-get install --assume-yes --no-install-recommends \
    adduser=3.152 \
    libonig5=6.9.9-1+b1 \
    libxml2=2.12.7+dfsg+really2.9.14-2.1+deb13u2 \
    ca-certificates=20250419 \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/*

ARG UID=1000
ARG GID=1000
RUN addgroup --gid "${GID}" app \
  && adduser --disabled-password --comment '' --home /app --shell /bin/sh --uid "${UID}" --ingroup app app

USER app

WORKDIR /app

COPY --from=build --chown=app:app /app/epub-LinuxFr.org .

EXPOSE 9000

ENTRYPOINT ["/app/epub-LinuxFr.org"]
CMD ["--help"]